apple clang package

.github/dependabot.yml

@@ -5,13 +5,3 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-  # Requirements to build documentation
-  - package-ecosystem: "pip"
-    directory: "/lib/spack/docs"
-    schedule:
-      interval: "daily"
-  # Requirements to run style checks
-  - package-ecosystem: "pip"
-    directory: "/.github/workflows/style"
-    schedule:
-      interval: "daily"

.github/workflows/audit.yaml

@@ -17,13 +17,10 @@ concurrency:
 jobs:
   # Run audits on all the packages in the built-in repository
   package-audits:
-    runs-on: ${{ matrix.operating_system }}
+    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        operating_system: ["ubuntu-latest", "macos-latest"]
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # @v2
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: ${{inputs.python_version}}
     - name: Install Python packages
@@ -34,7 +31,6 @@ jobs:
       run: |
           . share/spack/setup-env.sh
           coverage run $(which spack) audit packages
-          coverage run $(which spack) audit externals        
           coverage combine
           coverage xml
     - name: Package audits (without coverage)
@@ -42,8 +38,7 @@ jobs:
       run: |
           . share/spack/setup-env.sh
           $(which spack) audit packages
-          $(which spack) audit externals
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2 # @v2.1.0
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # @v2.1.0
       if: ${{ inputs.with_coverage == 'true' }}
       with:
-        flags: unittests,audits
+        flags: unittests,linux,audits

.github/workflows/bootstrap.yml

@@ -24,7 +24,7 @@ jobs:
               make patch unzip which xz python3 python3-devel tree \
               cmake bison bison-devel libstdc++-static
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup non-root user
@@ -62,7 +62,7 @@ jobs:
               make patch unzip xz-utils python3 python3-dev tree \
               cmake bison
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup non-root user
@@ -99,7 +99,7 @@ jobs:
               bzip2 curl file g++ gcc gfortran git gnupg2 gzip \
               make patch unzip xz-utils python3 python3-dev tree
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup non-root user
@@ -133,7 +133,7 @@ jobs:
               make patch unzip which xz python3 python3-devel tree \
               cmake bison
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup repo
@@ -158,7 +158,7 @@ jobs:
         run: |
           brew install cmake bison@2.7 tree
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - name: Bootstrap clingo
         run: |
           source share/spack/setup-env.sh
@@ -179,11 +179,11 @@ jobs:
         run: |
           brew install tree
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - name: Bootstrap clingo
         run: |
           set -ex
-          for ver in '3.7' '3.8' '3.9' '3.10' '3.11' ; do
+          for ver in '3.6' '3.7' '3.8' '3.9' '3.10' ; do
             not_found=1
             ver_dir="$(find $RUNNER_TOOL_CACHE/Python -wholename "*/${ver}.*/*/bin" | grep . || true)"
             echo "Testing $ver_dir"
@@ -204,7 +204,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup repo
@@ -214,7 +214,7 @@ jobs:
       - name: Bootstrap clingo
         run: |
           set -ex
-          for ver in '3.7' '3.8' '3.9' '3.10' '3.11' ; do
+          for ver in '3.6' '3.7' '3.8' '3.9' '3.10' ; do
             not_found=1
             ver_dir="$(find $RUNNER_TOOL_CACHE/Python -wholename "*/${ver}.*/*/bin" | grep . || true)"
             echo "Testing $ver_dir"
@@ -247,7 +247,7 @@ jobs:
               bzip2 curl file g++ gcc patchelf gfortran git gzip \
               make patch unzip xz-utils python3 python3-dev tree
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup non-root user
@@ -283,7 +283,7 @@ jobs:
               make patch unzip xz-utils python3 python3-dev tree \
               gawk
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           fetch-depth: 0
       - name: Setup non-root user
@@ -316,7 +316,7 @@ jobs:
           # Remove GnuPG since we want to bootstrap it
           sudo rm -rf /usr/local/bin/gpg
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - name: Bootstrap GnuPG
         run: |
           source share/spack/setup-env.sh
@@ -333,7 +333,7 @@ jobs:
           # Remove GnuPG since we want to bootstrap it
           sudo rm -rf /usr/local/bin/gpg
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - name: Bootstrap GnuPG
         run: |
           source share/spack/setup-env.sh

.github/workflows/build-containers.yml

@@ -49,14 +49,14 @@ jobs:
                      [almalinux8, 'linux/amd64,linux/arm64,linux/ppc64le', 'almalinux:8'],
                      [almalinux9, 'linux/amd64,linux/arm64,linux/ppc64le', 'almalinux:9'],
                      [rockylinux8, 'linux/amd64,linux/arm64', 'rockylinux:8'],
-                     [rockylinux9, 'linux/amd64,linux/arm64', 'rockylinux:9'],
+                     [rockylinux9, 'linux/amd64,linux/arm64,linux/ppc64le', 'rockylinux:9'],
                      [fedora37, 'linux/amd64,linux/arm64,linux/ppc64le', 'fedora:37'],
                      [fedora38, 'linux/amd64,linux/arm64,linux/ppc64le', 'fedora:38']]
     name: Build ${{ matrix.dockerfile[0] }}
     if: github.repository == 'spack/spack'
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
 
       - name: Set Container Tag Normal (Nightly)
         run: |
@@ -86,19 +86,19 @@ jobs:
           fi
 
       - name: Upload Dockerfile
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32
+        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce
         with:
           name: dockerfiles
           path: dockerfiles
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # @v1
+        uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18 # @v1
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # @v1
+        uses: docker/setup-buildx-action@4b4e9c3e2d4531116a6f8ba8e71fc6e2cb6e6c8c # @v1
 
       - name: Log in to GitHub Container Registry
-        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # @v1
+        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a # @v1
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -106,13 +106,13 @@ jobs:
 
       - name: Log in to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # @v1
+        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a # @v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Build & Deploy ${{ matrix.dockerfile[0] }}
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # @v2
+        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671 # @v2
         with:
           context: dockerfiles/${{ matrix.dockerfile[0] }}
           platforms: ${{ matrix.dockerfile[1] }}

.github/workflows/ci.yaml

@@ -35,7 +35,7 @@ jobs:
       core: ${{ steps.filter.outputs.core }}
       packages: ${{ steps.filter.outputs.packages }}
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+      - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
         if: ${{ github.event_name == 'push' }}
         with:
           fetch-depth: 0

.github/workflows/nightly-win-builds.yml

@@ -1,31 +0,0 @@
-name: Windows Paraview Nightly
-
-on:
-  schedule:
-    - cron: '0 2 * * *' # Run at 2 am
-
-defaults:
-  run:
-    shell:
-     powershell Invoke-Expression -Command "./share/spack/qa/windows_test_setup.ps1"; {0}
-
-
-jobs:
-  build-paraview-deps:
-    runs-on: windows-latest
-    steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
-      with:
-        fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236
-      with:
-        python-version: 3.9
-    - name: Install Python packages
-      run: |
-          python -m pip install --upgrade pip six pywin32 setuptools coverage
-    - name: Build Test
-      run: |
-        spack compiler find
-        spack external find cmake ninja win-sdk win-wdk wgl msmpi
-        spack -d install -y --cdash-upload-url https://cdash.spack.io/submit.php?project=Spack+on+Windows --cdash-track Nightly --only dependencies paraview
-        exit 0

.github/workflows/style/requirements.txt

@@ -1,7 +0,0 @@
-black==23.9.1
-clingo==5.6.2
-flake8==6.1.0
-isort==5.12.0
-mypy==1.5.1
-types-six==1.16.21.9
-vermin==1.5.2

.github/workflows/unit_tests.yaml

@@ -47,10 +47,10 @@ jobs:
           on_develop: false
 
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # @v2
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install System packages
@@ -87,17 +87,17 @@ jobs:
           UNIT_TEST_COVERAGE: ${{ matrix.python-version == '3.11' }}
       run: |
           share/spack/qa/run-unit-tests
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2
       with:
         flags: unittests,linux,${{ matrix.concretizer }}
   # Test shell integration
   shell:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # @v2
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: '3.11'
     - name: Install System packages
@@ -118,7 +118,7 @@ jobs:
           COVERAGE: true
       run: |
           share/spack/qa/run-shell-tests
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2
       with:
         flags: shelltests,linux
 
@@ -133,7 +133,7 @@ jobs:
           dnf install -y \
               bzip2 curl file gcc-c++ gcc gcc-gfortran git gnupg2 gzip \
               make patch tcl unzip which xz
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
     - name: Setup repo and non-root user
       run: |
           git --version
@@ -152,10 +152,10 @@ jobs:
   clingo-cffi:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # @v2
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: '3.11'
     - name: Install System packages
@@ -165,7 +165,6 @@ jobs:
     - name: Install Python packages
       run: |
           pip install --upgrade pip setuptools pytest coverage[toml] pytest-cov clingo pytest-xdist
-          pip install --upgrade flake8 "isort>=4.3.5" "mypy>=0.900" "click" "black"
     - name: Setup git configuration
       run: |
           # Need this for the git tests to succeed.
@@ -177,7 +176,7 @@ jobs:
           SPACK_TEST_SOLVER: clingo
       run: |
           share/spack/qa/run-unit-tests
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # @v2.1.0
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2 # @v2.1.0
       with:
         flags: unittests,linux,clingo
   # Run unit tests on MacOS
@@ -187,10 +186,10 @@ jobs:
       matrix:
         python-version: ["3.10"]
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # @v2
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install Python packages
@@ -212,6 +211,6 @@ jobs:
         $(which spack) solve zlib
         common_args=(--dist loadfile --tx '4*popen//python=./bin/spack-tmpconfig python -u ./bin/spack python' -x)
         $(which spack) unit-test --cov --cov-config=pyproject.toml --cov-report=xml:coverage.xml "${common_args[@]}"
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2
       with:
         flags: unittests,macos

.github/workflows/valid-style.yml

@@ -18,15 +18,15 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: '3.11'
         cache: 'pip'
     - name: Install Python Packages
       run: |
-        pip install --upgrade pip setuptools
+        pip install --upgrade pip
-        pip install -r .github/workflows/style/requirements.txt
+        pip install --upgrade vermin
     - name: vermin (Spack's Core)
       run: vermin --backport importlib --backport argparse --violations --backport typing -t=3.6- -vvv lib/spack/spack/ lib/spack/llnl/ bin/
     - name: vermin (Repositories)
@@ -35,17 +35,16 @@ jobs:
   style:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b # @v2
       with:
         python-version: '3.11'
         cache: 'pip'
     - name: Install Python packages
       run: |
-        pip install --upgrade pip setuptools
+        python3 -m pip install --upgrade pip setuptools types-six black==23.1.0 mypy isort clingo flake8
-        pip install -r .github/workflows/style/requirements.txt
     - name: Setup git configuration
       run: |
         # Need this for the git tests to succeed.
@@ -69,7 +68,7 @@ jobs:
           dnf install -y \
               bzip2 curl file gcc-c++ gcc gcc-gfortran git gnupg2 gzip \
               make patch tcl unzip which xz
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # @v2
+      - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # @v2
       - name: Setup repo and non-root user
         run: |
           git --version
@@ -82,7 +81,6 @@ jobs:
         shell: runuser -u spack-test -- bash {0}
         run: |
           source share/spack/setup-env.sh
-          spack debug report
           spack -d bootstrap now --dev
           spack style -t black
           spack unit-test -V

.github/workflows/windows_python.yml

@@ -15,10 +15,10 @@ jobs:
   unit-tests:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b
       with:
         python-version: 3.9
     - name: Install Python packages
@@ -33,16 +33,16 @@ jobs:
         ./share/spack/qa/validate_last_exit.ps1
         coverage combine -a
         coverage xml
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2
       with:
         flags: unittests,windows
   unit-tests-cmd:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b
       with:
         python-version: 3.9
     - name: Install Python packages
@@ -57,16 +57,16 @@ jobs:
         ./share/spack/qa/validate_last_exit.ps1
         coverage combine -a
         coverage xml
-    - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
+    - uses: codecov/codecov-action@894ff025c7b54547a9a2a1e9f228beae737ad3c2
       with:
         flags: unittests,windows
   build-abseil:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
+    - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       with:
         fetch-depth: 0
-    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236
+    - uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b
       with:
         python-version: 3.9
     - name: Install Python packages
@@ -75,5 +75,6 @@ jobs:
     - name: Build Test
       run: |
         spack compiler find
-        spack -d external find cmake ninja
+        spack external find cmake
+        spack external find ninja
         spack -d install abseil-cpp

.readthedocs.yml

@@ -1,16 +1,10 @@
 version: 2
 
-build:
-  os: "ubuntu-22.04"
-  apt_packages:
-    - graphviz
-  tools:
-    python: "3.11"
-
 sphinx:
   configuration: lib/spack/docs/conf.py
   fail_on_warning: true
 
 python:
+  version: 3.7
   install:
     - requirements: lib/spack/docs/requirements.txt

CHANGELOG.md

@@ -1,21 +1,3 @@
-# v0.20.1 (2023-07-10)
-
-## Spack Bugfixes
-
-- Spec removed from an environment where not actually removed if `--force` was not given (#37877)
-- Speed-up module file generation (#37739)
-- Hotfix for a few recipes that treat CMake as a link dependency (#35816)
-- Fix re-running stand-alone test a second time, which was getting a trailing spurious failure (#37840)
-- Fixed reading JSON manifest on Cray, reporting non-concrete specs (#37909)
-- Fixed a few bugs when generating Dockerfiles from Spack (#37766,#37769)
-- Fixed a few long-standing bugs when generating module files (#36678,#38347,#38465,#38455)
-- Fixed issues with building Python extensions using an external Python (#38186)
-- Fixed compiler removal from command line (#38057)
-- Show external status as [e] (#33792)
-- Backported `archspec` fixes (#37793)
-- Improved a few error messages (#37791)
-
-
 # v0.20.0 (2023-05-21)
 
 `v0.20.0` is a major feature release.

CITATION.cff

@@ -27,53 +27,12 @@
 # And here's the CITATION.cff format:
 #
 cff-version: 1.2.0
-type: software
 message: "If you are referencing Spack in a publication, please cite the paper below."
-title: "The Spack Package Manager: Bringing Order to HPC Software Chaos"
-abstract: >-
-  Large HPC centers spend considerable time supporting software for thousands of users, but the complexity of HPC software is quickly outpacing the capabilities of existing software management tools.
-  Scientific applications require specific versions of compilers, MPI, and other dependency libraries, so using a single, standard software stack is infeasible.
-  However, managing many configurations is difficult because the configuration space is combinatorial in size.
-  We introduce Spack, a tool used at Lawrence Livermore National Laboratory to manage this complexity.
-  Spack provides a novel, re- cursive specification syntax to invoke parametric builds of packages and dependencies.
-  It allows any number of builds to coexist on the same system, and it ensures that installed packages can find their dependencies, regardless of the environment.
-  We show through real-world use cases that Spack supports diverse and demanding applications, bringing order to HPC software chaos.
 preferred-citation:
-  title: "The Spack Package Manager: Bringing Order to HPC Software Chaos"
   type: conference-paper
-  url: "https://tgamblin.github.io/pubs/spack-sc15.pdf"
+  doi: "10.1145/2807591.2807623"
+  url: "https://github.com/spack/spack"
   authors:
-    - family-names: "Gamblin"
-      given-names: "Todd"
-    - family-names: "LeGendre"
-      given-names: "Matthew"
-    - family-names: "Collette"
-      given-names: "Michael R."
-    - family-names: "Lee"
-      given-names: "Gregory L."
-    - family-names: "Moody"
-      given-names: "Adam"
-    - family-names: "de Supinski"
-      given-names: "Bronis R."
-    - family-names: "Futral"
-      given-names: "Scott"
-  conference:
-    name: "Supercomputing 2015 (SC’15)"
-    city: "Austin"
-    region: "Texas"
-    country: "US"
-    date-start: 2015-11-15
-    date-end: 2015-11-20
-  month: 11
-  year: 2015
-  identifiers:
-    - description: "The concept DOI of the work."
-      type: doi
-      value: 10.1145/2807591.2807623
-    - description: "The DOE Document Release Number of the work"
-      type: other 
-      value: "LLNL-CONF-669890"
-authors:
   - family-names: "Gamblin"
     given-names: "Todd"
   - family-names: "LeGendre"
@@ -88,3 +47,12 @@ authors:
     given-names: "Bronis R."
   - family-names: "Futral"
     given-names: "Scott"
+  title: "The Spack Package Manager: Bringing Order to HPC Software Chaos"
+  conference:
+    name: "Supercomputing 2015 (SC’15)"
+    city: "Austin"
+    region: "Texas"
+    country: "USA"
+  month: November 15-20
+  year: 2015
+  notes: LLNL-CONF-669890

SECURITY.md

@@ -2,26 +2,24 @@
 
 ## Supported Versions
 
-We provide security updates for `develop` and for the last two
+We provide security updates for the following releases.
-stable (`0.x`) release series of Spack. Security updates will be
-made available as patch (`0.x.1`, `0.x.2`, etc.) releases.
-
 For more on Spack's release structure, see
 [`README.md`](https://github.com/spack/spack#releases).
 
+
+| Version | Supported          |
+| ------- | ------------------ |
+| develop | :white_check_mark: |
+| 0.19.x  | :white_check_mark: |
+| 0.18.x  | :white_check_mark: |
+
 ## Reporting a Vulnerability
 
-You can report a vulnerability using GitHub's private reporting
+To report a vulnerability or other security
-feature:
+issue, email maintainers@spack.io.
 
-1. Go to [github.com/spack/spack/security](https://github.com/spack/spack/security).
+You can expect to hear back within two days.
-2. Click "Report a vulnerability" in the upper right corner of that page.
+If your security issue is accepted, we will do
-3. Fill out the form and submit your draft security advisory.
+our best to release a fix within a week. If
-
+fixing the issue will take longer than this,
-More details are available in
+we will discuss timeline options with you.
-[GitHub's docs](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing/privately-reporting-a-security-vulnerability).
-
-You can expect to hear back about security issues within two days.
-If your security issue is accepted, we will do our best to release
-a fix within a week. If fixing the issue will take longer than
-this, we will discuss timeline options with you.

bin/spack

@@ -25,6 +25,8 @@ exit 1
 # Line above is a shell no-op, and ends a python multi-line comment.
 # The code above runs this file with our preferred python interpreter.
 
+from __future__ import print_function
+
 import os
 import os.path
 import sys

bin/spack.bat

@@ -14,7 +14,7 @@
 ::
 @echo off
 
-set spack="%SPACK_ROOT%"\bin\spack
+set spack=%SPACK_ROOT%\bin\spack
 
 ::#######################################################################
 :: This is a wrapper around the spack command that forwards calls to
@@ -51,43 +51,65 @@ setlocal enabledelayedexpansion
 :: subcommands will never start with '-'
 :: everything after the subcommand is an arg
 
-
+:: we cannot allow batch "for" loop to directly process CL args
+:: a number of batch reserved characters are commonly passed to
+:: spack and allowing batch's "for" method to process the raw inputs
+:: results in a large number of formatting issues
+:: instead, treat the entire CLI as one string
+:: and split by space manually
+:: capture cl args in variable named cl_args
+set cl_args=%*
 :process_cl_args
-rem Set first cl argument (denoted by %1) to be processed
+rem  tokens=1* returns the first processed token produced
-set t=%1
+rem  by tokenizing the input string cl_args on spaces into
-rem shift moves all cl positional arguments left by one
+rem  the named variable %%g
-rem meaning %2 is now %1, this allows us to iterate over each
+rem  While this make look like a for loop, it only
-rem argument
+rem  executes a single time for each of the cl args
-shift
+rem  the actual iterative loop is performed by the
-rem assign next "first" cl argument to cl_args, will be null when
+rem  goto process_cl_args stanza
-rem there are now further arguments to process
+rem  we are simply leveraging the "for" method's string
-set cl_args=%1
+rem  tokenization
-if "!t:~0,1!" == "-" (
+for /f "tokens=1*" %%g in ("%cl_args%") do (
-    if defined _sp_subcommand (
+    set t=%%~g
-        rem  We already have a subcommand, processing args now
+    rem  remainder of string is composed into %%h
+    rem  these are the cl args yet to be processed
+    rem  assign cl_args var to only the args to be processed
+    rem  effectively discarding the current arg %%g
+    rem  this will be nul when we have no further tokens to process
+    set cl_args=%%h
+    rem  process the first space delineated cl arg
+    rem  of this iteration
+    if "!t:~0,1!" == "-" (
+        if defined _sp_subcommand (
+            rem  We already have a subcommand, processing args now
+            if not defined _sp_args (
+                set "_sp_args=!t!"
+            ) else (
+                set "_sp_args=!_sp_args! !t!"
+            )
+        ) else (
+            if not defined _sp_flags (
+                set "_sp_flags=!t!"
+                shift
+            ) else (
+                set "_sp_flags=!_sp_flags! !t!"
+                shift
+            )
+        )
+    ) else if not defined _sp_subcommand (
+        set "_sp_subcommand=!t!"
+        shift
+    ) else (
         if not defined _sp_args (
             set "_sp_args=!t!"
+            shift
         ) else (
             set "_sp_args=!_sp_args! !t!"
+            shift
         )
-    ) else (
-        if not defined _sp_flags (
-            set "_sp_flags=!t!"
-        ) else (
-            set "_sp_flags=!_sp_flags! !t!"
-        )
-    )
-) else if not defined _sp_subcommand (
-    set "_sp_subcommand=!t!"
-) else (
-    if not defined _sp_args (
-        set "_sp_args=!t!"
-    ) else (
-        set "_sp_args=!_sp_args! !t!"
     )
 )
-
+rem  if this is not nil, we have more tokens to process
-rem  if this is not nu;ll, we have more tokens to process
 rem  start above process again with remaining unprocessed cl args
 if defined cl_args goto :process_cl_args
 
@@ -192,7 +214,7 @@ goto :end_switch
 if defined _sp_args (
     if NOT "%_sp_args%"=="%_sp_args:--help=%" (
         goto :default_case
-    ) else if NOT "%_sp_args%"=="%_sp_args:-h=%" (
+    ) else if NOT "%_sp_args%"=="%_sp_args: -h=%" (
         goto :default_case
     ) else if NOT "%_sp_args%"=="%_sp_args:--bat=%" (
         goto :default_case

bin/spack.ps1

@@ -1,146 +0,0 @@
-#  Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
-#  Spack Project Developers. See the top-level COPYRIGHT file for details.
-
-#  SPDX-License-Identifier: (Apache-2.0 OR MIT)
-# #######################################################################
-
-function Compare-CommonArgs {
-    $CMDArgs = $args[0]
-    # These aruments take precedence and call for no futher parsing of arguments
-    # invoke actual Spack entrypoint with that context and exit after
-    "--help", "-h", "--version", "-V" | ForEach-Object {
-        $arg_opt = $_
-        if(($CMDArgs) -and ([bool]($CMDArgs.Where({$_ -eq $arg_opt})))) {
-            return $true
-        }
-    }
-    return $false
-}
-
-function Read-SpackArgs {
-    $SpackCMD_params = @()
-    $SpackSubCommand = $NULL
-    $SpackSubCommandArgs = @()
-    $args_ = $args[0]
-    $args_ | ForEach-Object {
-        if (!$SpackSubCommand) {
-            if($_.SubString(0,1) -eq "-")
-            {
-                $SpackCMD_params += $_
-            }
-            else{
-                $SpackSubCommand = $_
-            }
-        }
-        else{
-            $SpackSubCommandArgs += $_
-        }
-    }
-    return $SpackCMD_params, $SpackSubCommand, $SpackSubCommandArgs
-}
-
-function Set-SpackEnv {
-    # This method is responsible
-    # for processing the return from $(spack <command>)
-    # which are returned as System.Object[]'s containing
-    # a list of env commands
-    # Invoke-Expression can only handle one command at a time
-    # so we iterate over the list to invoke the env modification
-    # expressions one at a time
-    foreach($envop in $args[0]){
-        Invoke-Expression $envop
-    }
-}
-
-
-function Invoke-SpackCD {
-    if (Compare-CommonArgs $SpackSubCommandArgs) {
-        python "$Env:SPACK_ROOT/bin/spack" cd -h
-    }
-    else {
-        $LOC = $(python "$Env:SPACK_ROOT/bin/spack" location $SpackSubCommandArgs)
-        if (($NULL -ne $LOC)){
-            if ( Test-Path -Path $LOC){
-                Set-Location $LOC
-            }
-            else{
-                exit 1
-            }
-        }
-        else {
-            exit 1
-        }
-    }
-}
-
-function Invoke-SpackEnv {
-    if (Compare-CommonArgs $SpackSubCommandArgs[0]) {
-        python "$Env:SPACK_ROOT/bin/spack" env -h
-    }
-    else {
-        $SubCommandSubCommand = $SpackSubCommandArgs[0]
-        $SubCommandSubCommandArgs = $SpackSubCommandArgs[1..$SpackSubCommandArgs.Count]
-        switch ($SubCommandSubCommand) {
-            "activate" {
-                if (Compare-CommonArgs $SubCommandSubCommandArgs) {
-                    python "$Env:SPACK_ROOT/bin/spack" env activate $SubCommandSubCommandArgs
-                }
-                elseif ([bool]($SubCommandSubCommandArgs.Where({$_ -eq "--pwsh"}))) {
-                    python "$Env:SPACK_ROOT/bin/spack" env activate $SubCommandSubCommandArgs
-                }
-                elseif (!$SubCommandSubCommandArgs) {
-                    python "$Env:SPACK_ROOT/bin/spack" env activate $SubCommandSubCommandArgs
-                }
-                else {
-                    $SpackEnv = $(python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params env activate "--pwsh" $SubCommandSubCommandArgs)
-                    Set-SpackEnv $SpackEnv
-                }
-            }
-            "deactivate" {
-                if ([bool]($SubCommandSubCommandArgs.Where({$_ -eq "--pwsh"}))) {
-                    python"$Env:SPACK_ROOT/bin/spack" env deactivate $SubCommandSubCommandArgs
-                }
-                elseif($SubCommandSubCommandArgs) {
-                    python "$Env:SPACK_ROOT/bin/spack" env deactivate -h
-                }
-                else {
-                    $SpackEnv = $(python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params env deactivate "--pwsh")
-                    Set-SpackEnv $SpackEnv
-                }
-            }
-            default {python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params $SpackSubCommand $SpackSubCommandArgs}
-        }
-    }
-}
-
-function Invoke-SpackLoad {
-    if (Compare-CommonArgs $SpackSubCommandArgs) {
-        python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params $SpackSubCommand $SpackSubCommandArgs
-    }
-    elseif ([bool]($SpackSubCommandArgs.Where({($_ -eq "--pwsh") -or ($_ -eq "--list")}))) {
-        python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params $SpackSubCommand $SpackSubCommandArgs
-    }
-    else {
-        $SpackEnv = $(python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params $SpackSubCommand "--pwsh" $SpackSubCommandArgs)
-        Set-SpackEnv $SpackEnv
-    }
-}
-
-
-$SpackCMD_params, $SpackSubCommand, $SpackSubCommandArgs = Read-SpackArgs $args
-
-if (Compare-CommonArgs $SpackCMD_params) {
-    python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params $SpackSubCommand $SpackSubCommandArgs
-    exit $LASTEXITCODE
-}
-
-# Process Spack commands with special conditions
-# all other commands are piped directly to Spack
-switch($SpackSubCommand)
-{
-    "cd"     {Invoke-SpackCD}
-    "env"    {Invoke-SpackEnv}
-    "load"   {Invoke-SpackLoad}
-    "unload" {Invoke-SpackLoad}
-    default  {python "$Env:SPACK_ROOT/bin/spack" $SpackCMD_params $SpackSubCommand $SpackSubCommandArgs}
-}

etc/spack/defaults/concretizer.yaml

@@ -36,9 +36,3 @@ concretizer:
   # on each root spec, allowing different versions and variants of the same package in
   # an environment.
   unify: true
-  # Option to deal with possible duplicate nodes (i.e. different nodes from the same package) in the DAG.
-  duplicates:
-    # "none": allows a single node for any package in the DAG.
-    # "minimal": allows the duplication of 'build-tools' nodes only (e.g. py-setuptools, cmake etc.)
-    # "full" (experimental): allows separation of the entire build-tool stack (e.g. the entire "cmake" subDAG)
-    strategy: minimal

etc/spack/defaults/config.yaml

@@ -216,11 +216,10 @@ config:
   # manipulation by unprivileged user (e.g. AFS)
   allow_sgid: true
 
-  # Whether to show status information during building and installing packages.
+  # Whether to set the terminal title to display status information during
-  # This gives information about Spack's current progress as well as the current
+  # building and installing packages. This gives information about Spack's
-  # and total number of packages. Information is shown both in the terminal
+  # current progress as well as the current and total number of packages.
-  # title and inline.
+  terminal_title: false
-  install_status: true
 
   # Number of seconds a buildcache's index.json is cached locally before probing
   # for updates, within a single Spack invocation. Defaults to 10 minutes.

etc/spack/defaults/mirrors.yaml

@@ -1,4 +1,2 @@
 mirrors:
-  spack-public:
+  spack-public: https://mirror.spack.io
-    binary: false
-    url: https://mirror.spack.io

etc/spack/defaults/packages.yaml

@@ -49,7 +49,6 @@ packages:
       pbs: [openpbs, torque]
       pil: [py-pillow]
       pkgconfig: [pkgconf, pkg-config]
-      qmake: [qt-base, qt]
       rpc: [libtirpc]
       scalapack: [netlib-scalapack, amdscalapack]
       sycl: [hipsycl]
@@ -60,7 +59,6 @@ packages:
       xxd: [xxd-standalone, vim]
       yacc: [bison, byacc]
       ziglang: [zig]
-      zlib-api: [zlib-ng+compat, zlib]
     permissions:
       read: world
       write: user

lib/spack/docs/.gitignore

@@ -1,3 +1,4 @@
+package_list.html
 command_index.rst
 spack*.rst
 llnl*.rst

lib/spack/docs/_pygments/style.py

@@ -1,16 +0,0 @@
-# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
-# Spack Project Developers. See the top-level COPYRIGHT file for details.
-#
-# SPDX-License-Identifier: (Apache-2.0 OR MIT)
-
-# The name of the Pygments (syntax highlighting) style to use.
-# We use our own extension of the default style with a few modifications
-from pygments.styles.default import DefaultStyle
-from pygments.token import Generic
-
-
-class SpackStyle(DefaultStyle):
-    styles = DefaultStyle.styles.copy()
-    background_color = "#f4f4f8"
-    styles[Generic.Output] = "#355"
-    styles[Generic.Prompt] = "bold #346ec9"

lib/spack/docs/basic_usage.rst

@@ -45,8 +45,7 @@ Listing available packages
 
 To install software with Spack, you need to know what software is
 available.  You can see a list of available package names at the
-`packages.spack.io <https://packages.spack.io>`_ website, or
+:ref:`package-list` webpage, or using the ``spack list`` command.
-using the ``spack list`` command.
 
 .. _cmd-spack-list:
 
@@ -61,7 +60,7 @@ can install:
    :ellipsis: 10
 
 There are thousands of them, so we've truncated the output above, but you
-can find a `full list here <https://packages.spack.io>`_.
+can find a :ref:`full list here <package-list>`.
 Packages are listed by name in alphabetical order.
 A pattern to match with no wildcards, ``*`` or ``?``,
 will be treated as though it started and ended with

lib/spack/docs/binary_caches.rst

@@ -48,10 +48,14 @@ Here is an example where a build cache is created in a local directory named
 
 .. code-block:: console
 
-    $ spack buildcache push ./spack-cache ninja
+    $ spack buildcache push --allow-root ./spack-cache ninja
     ==> Pushing binary packages to file:///home/spackuser/spack/spack-cache/build_cache
 
-Note that ``ninja`` must be installed locally for this to work.
+Not that ``ninja`` must be installed locally for this to work.
+
+We're using the ``--allow-root`` flag to tell Spack that is OK when any of
+the binaries we're pushing contain references to the local Spack install
+directory.
 
 Once you have a build cache, you can add it as a mirror, discussed next.
 
@@ -143,7 +147,7 @@ and then install from it exclusively, you would do:
 
     $ spack mirror add E4S https://cache.e4s.io
     $ spack buildcache keys --install --trust
-    $ spack install --use-buildcache only <package>
+    $ spack install --use-buildache only <package>
 
 We use ``--install`` and ``--trust`` to say that we are installing keys to our
 keyring, and trusting all downloaded keys.

lib/spack/docs/bootstrapping.rst

@@ -32,14 +32,9 @@ can't be found. You can readily check if any prerequisite for using Spack is mis
 
    Spack will take care of bootstrapping any missing dependency marked as [B]. Dependencies marked as [-] are instead required to be found on the system.
 
-   % echo $?
-   1
-
 In the case of the output shown above Spack detected that both ``clingo`` and ``gnupg``
 are missing and it's giving detailed information on why they are needed and whether
-they can be bootstrapped. The return code of this command summarizes the results, if any
+they can be bootstrapped. Running a command that concretize a spec, like:
-dependencies are missing the return code is ``1``, otherwise ``0``. Running a command that
-concretizes a spec, like:
 
 .. code-block:: console
 
@@ -49,7 +44,7 @@ concretizes a spec, like:
    ==> Installing "clingo-bootstrap@spack%apple-clang@12.0.0~docs~ipo+python build_type=Release arch=darwin-catalina-x86_64" from a buildcache
    [ ... ]
 
-automatically triggers the bootstrapping of clingo from pre-built binaries as expected.
+triggers the bootstrapping of clingo from pre-built binaries as expected.
 
 Users can also bootstrap all the dependencies needed by Spack in a single command, which
 might be useful to setup containers or other similar environments:

lib/spack/docs/build_settings.rst

@@ -3,103 +3,6 @@
 
    SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
-
-.. _concretizer-options:
-
-==========================================
-Concretization Settings (concretizer.yaml)
-==========================================
-
-The ``concretizer.yaml`` configuration file allows to customize aspects of the
-algorithm used to select the dependencies you install. The default configuration
-is the following:
-
-.. literalinclude:: _spack_root/etc/spack/defaults/concretizer.yaml
-   :language: yaml
-
---------------------------------
-Reuse already installed packages
---------------------------------
-
-The ``reuse`` attribute controls whether Spack will prefer to use installed packages (``true``), or
-whether it will do a "fresh" installation and prefer the latest settings from
-``package.py`` files and ``packages.yaml`` (``false``).
-You can use:
-
-.. code-block:: console
-
-   % spack install --reuse <spec>
-
-to enable reuse for a single installation, and you can use:
-
-.. code-block:: console
-
-   spack install --fresh <spec>
-
-to do a fresh install if ``reuse`` is enabled by default.
-``reuse: true`` is the default.
-
-------------------------------------------
-Selection of the target microarchitectures
-------------------------------------------
-
-The options under the ``targets`` attribute control which targets are considered during a solve.
-Currently the options in this section are only configurable from the ``concretizer.yaml`` file
-and there are no corresponding command line arguments to enable them for a single solve.
-
-The ``granularity`` option can take two possible values: ``microarchitectures`` and ``generic``.
-If set to:
-
-.. code-block:: yaml
-
-   concretizer:
-     targets:
-       granularity: microarchitectures
-
-Spack will consider all the microarchitectures known to ``archspec`` to label nodes for
-compatibility. If instead the option is set to:
-
-.. code-block:: yaml
-
-   concretizer:
-     targets:
-       granularity: generic
-
-Spack will consider only generic microarchitectures. For instance, when running on an
-Haswell node, Spack will consider ``haswell`` as the best target in the former case and
-``x86_64_v3`` as the best target in the latter case.
-
-The ``host_compatible`` option is a Boolean option that determines whether or not the
-microarchitectures considered during the solve are constrained to be compatible with the
-host Spack is currently running on. For instance, if this option is set to ``true``, a
-user cannot concretize for ``target=icelake`` while running on an Haswell node.
-
----------------
-Duplicate nodes
----------------
-
-The ``duplicates`` attribute controls whether the DAG can contain multiple configurations of
-the same package. This is mainly relevant for build dependencies, which may have their version
-pinned by some nodes, and thus be required at different versions by different nodes in the same
-DAG.
-
-The ``strategy`` option controls how the solver deals with duplicates. If the value is ``none``,
-then a single configuration per package is allowed in the DAG. This means, for instance, that only
-a single ``cmake`` or a single ``py-setuptools`` version is allowed. The result would be a slightly
-faster concretization, at the expense of making a few specs unsolvable.
-
-If the value is ``minimal`` Spack will allow packages tagged as ``build-tools`` to have duplicates.
-This allows, for instance, to concretize specs whose nodes require different, and incompatible, ranges
-of some build tool. For instance, in the figure below the latest `py-shapely` requires a newer `py-setuptools`,
-while `py-numpy` still needs an older version:
-
-.. figure::  images/shapely_duplicates.svg
-   :scale: 70 %
-   :align: center
-
-Up to Spack v0.20 ``duplicates:strategy:none`` was the default (and only) behavior. From Spack v0.21 the
-default behavior is ``duplicates:strategy:minimal``.
-
 .. _build-settings:
 
 ================================
@@ -329,6 +232,76 @@ Specific limitations include:
   then Spack will not add a new external entry (``spack config blame packages``
   can help locate all external entries).
 
+.. _concretizer-options:
+
+----------------------
+Concretizer options
+----------------------
+
+``packages.yaml`` gives the concretizer preferences for specific packages,
+but you can also use ``concretizer.yaml`` to customize aspects of the
+algorithm it uses to select the dependencies you install:
+
+.. literalinclude:: _spack_root/etc/spack/defaults/concretizer.yaml
+   :language: yaml
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Reuse already installed packages
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The ``reuse`` attribute controls whether Spack will prefer to use installed packages (``true``), or
+whether it will do a "fresh" installation and prefer the latest settings from
+``package.py`` files and ``packages.yaml`` (``false``).
+You can use:
+
+.. code-block:: console
+
+   % spack install --reuse <spec>
+
+to enable reuse for a single installation, and you can use:
+
+.. code-block:: console
+
+   spack install --fresh <spec>
+
+to do a fresh install if ``reuse`` is enabled by default.
+``reuse: true`` is the default.
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Selection of the target microarchitectures
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The options under the ``targets`` attribute control which targets are considered during a solve.
+Currently the options in this section are only configurable from the ``concretizer.yaml`` file
+and there are no corresponding command line arguments to enable them for a single solve.
+
+The ``granularity`` option can take two possible values: ``microarchitectures`` and ``generic``.
+If set to:
+
+.. code-block:: yaml
+
+   concretizer:
+     targets:
+       granularity: microarchitectures
+
+Spack will consider all the microarchitectures known to ``archspec`` to label nodes for
+compatibility. If instead the option is set to:
+
+.. code-block:: yaml
+
+   concretizer:
+     targets:
+       granularity: generic
+
+Spack will consider only generic microarchitectures. For instance, when running on an
+Haswell node, Spack will consider ``haswell`` as the best target in the former case and
+``x86_64_v3`` as the best target in the latter case.
+
+The ``host_compatible`` option is a Boolean option that determines whether or not the
+microarchitectures considered during the solve are constrained to be compatible with the
+host Spack is currently running on. For instance, if this option is set to ``true``, a
+user cannot concretize for ``target=icelake`` while running on an Haswell node.
+
 .. _package-requirements:
 
 --------------------

lib/spack/docs/build_systems/bundlepackage.rst

@@ -9,32 +9,9 @@
 Bundle
 ------
 
-``BundlePackage`` represents a set of packages that are expected to work
+``BundlePackage`` represents a set of packages that are expected to work well
-well together, such as a collection of commonly used software libraries.
+together, such as a collection of commonly used software libraries.  The
-The associated software is specified as dependencies.
+associated software is specified as bundle dependencies.
-
-If it makes sense, variants, conflicts, and requirements can be added to
-the package. :ref:`Variants <variants>` ensure that common build options
-are consistent across the packages supporting them.  :ref:`Conflicts
-and requirements <packaging_conflicts>` prevent attempts to build with known
-bugs or limitations.
-
-For example, if ``MyBundlePackage`` is known to only build on ``linux``,
-it could use the ``require`` directive as follows:
-
-.. code-block:: python
-
-    require("platform=linux", msg="MyBundlePackage only builds on linux")
-
-Spack has a number of built-in bundle packages, such as:
-
-* `AmdAocl <https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/amd-aocl/package.py>`_
-* `EcpProxyApps <https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/ecp-proxy-apps/package.py>`_
-* `Libc <https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/libc/package.py>`_
-* `Xsdk <https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/xsdk/package.py>`_
-
-where ``Xsdk`` also inherits from ``CudaPackage`` and ``RocmPackage`` and
-``Libc`` is a virtual bundle package for the C standard library.
 
 
 ^^^^^^^^

lib/spack/docs/build_systems/inteloneapipackage.rst

@@ -25,8 +25,8 @@ use Spack to build packages with the tools.
 The Spack Python class ``IntelOneapiPackage`` is a base class that is
 used by ``IntelOneapiCompilers``, ``IntelOneapiMkl``,
 ``IntelOneapiTbb`` and other classes to implement the oneAPI
-packages. Search for ``oneAPI`` at `<packages.spack.io>`_ for the full
+packages. See the :ref:`package-list` for the full list of available
-list of available oneAPI packages, or use::
+oneAPI packages or use::
 
   spack list -d oneAPI
 
@@ -76,55 +76,6 @@ To build with with ``icx``, do ::
 
   spack install patchelf%oneapi
 
-
-Using oneAPI Spack environment
--------------------------------
-
-In this example, we build lammps with ``icx`` using Spack environment for oneAPI packages created by Intel. The
-compilers are installed with Spack like in example above.
-
-Install the oneAPI compilers::
-
-  spack install intel-oneapi-compilers
-
-Add the compilers to your ``compilers.yaml`` so Spack can use them::
-
-  spack compiler add `spack location -i intel-oneapi-compilers`/compiler/latest/linux/bin/intel64
-  spack compiler add `spack location -i intel-oneapi-compilers`/compiler/latest/linux/bin
-
-Verify that the compilers are available::
-
-  spack compiler list
-
-Clone `spack-configs <https://github.com/spack/spack-configs>`_ repo and activate Intel oneAPI CPU environment::
-
-  git clone https://github.com/spack/spack-configs
-  spack env activate spack-configs/INTEL/CPU
-  spack concretize -f
-
-`Intel oneAPI CPU environment <https://github.com/spack/spack-configs/blob/main/INTEL/CPU/spack.yaml>`_  contains applications tested and validated by Intel, this list is constantly extended. And currently it supports:
-
-- `Devito <https://www.devitoproject.org/>`_
-- `GROMACS <https://www.gromacs.org/>`_
-- `HPCG <https://www.hpcg-benchmark.org/>`_
-- `HPL <https://netlib.org/benchmark/hpl/>`_
-- `LAMMPS <https://www.lammps.org/#gsc.tab=0>`_
-- `OpenFOAM <https://www.openfoam.com/>`_
-- `Quantum Espresso <https://www.quantum-espresso.org/>`_
-- `STREAM <https://www.cs.virginia.edu/stream/>`_
-- `WRF <https://github.com/wrf-model/WRF>`_
-
-To build lammps with oneAPI compiler from this environment just run::
-
-  spack install lammps
-
-Compiled binaries can be find using::
-
-  spack cd -i lammps
-
-You can do the same for all other applications from this environment.
-
-
 Using oneAPI MPI to Satisfy a Virtual Dependence
 ------------------------------------------------------
 

lib/spack/docs/build_systems/sippackage.rst

@@ -32,7 +32,7 @@ By default, these phases run:
 
 .. code-block:: console
 
-   $ sip-build --verbose --target-dir ...
+   $ python configure.py --bindir ... --destdir ...
    $ make
    $ make install
 
@@ -41,30 +41,30 @@ By default, these phases run:
 Important files
 ^^^^^^^^^^^^^^^
 
-Each SIP package comes with a custom configuration file written in Python.
+Each SIP package comes with a custom ``configure.py`` build script,
-For newer packages, this is called ``project.py``, while in older packages,
+written in Python. This script contains instructions to build the project.
-it may be called ``configure.py``. This script contains instructions to build
-the project.
 
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 Build system dependencies
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 
-``SIPPackage`` requires several dependencies. Python and SIP are needed at build-time
+``SIPPackage`` requires several dependencies. Python is needed to run
-to run the aforementioned configure script. Python is also needed at run-time to
+the ``configure.py`` build script, and to run the resulting Python
-actually use the installed Python library. And as we are building Python bindings
+libraries. Qt is needed to provide the ``qmake`` command. SIP is also
-for C/C++ libraries, Python is also needed as a link dependency. All of these
+needed to build the package. All of these dependencies are automatically
-dependencies are automatically added via the base class.
+added via the base class
 
 .. code-block:: python
 
-   extends("python", type=("build", "link", "run"))
+   extends('python')
-   depends_on("py-sip", type="build")
 
+   depends_on('qt', type='build')
 
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   depends_on('py-sip', type='build')
-Passing arguments to ``sip-build``
+
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Passing arguments to ``configure.py``
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Each phase comes with a ``<phase_args>`` function that can be used to pass
 arguments to that particular phase. For example, if you need to pass
@@ -72,11 +72,11 @@ arguments to the configure phase, you can use:
 
 .. code-block:: python
 
-   def configure_args(self):
+   def configure_args(self, spec, prefix):
-       return ["--no-python-dbus"]
+       return ['--no-python-dbus']
 
 
-A list of valid options can be found by running ``sip-build --help``.
+A list of valid options can be found by running ``python configure.py --help``.
 
 ^^^^^^^
 Testing

lib/spack/docs/conf.py

@@ -48,6 +48,9 @@
 os.environ["COLIFY_SIZE"] = "25x120"
 os.environ["COLUMNS"] = "120"
 
+# Generate full package list if needed
+subprocess.call(["spack", "list", "--format=html", "--update=package_list.html"])
+
 # Generate a command index if an update is needed
 subprocess.call(
     [
@@ -94,7 +97,9 @@ class PatchedPythonDomain(PythonDomain):
     def resolve_xref(self, env, fromdocname, builder, typ, target, node, contnode):
         if "refspecific" in node:
             del node["refspecific"]
-        return super().resolve_xref(env, fromdocname, builder, typ, target, node, contnode)
+        return super(PatchedPythonDomain, self).resolve_xref(
+            env, fromdocname, builder, typ, target, node, contnode
+        )
 
 
 #
@@ -144,6 +149,7 @@ def setup(sphinx):
 # Get nice vector graphics
 graphviz_output_format = "svg"
 
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ["_templates"]
 
@@ -211,8 +217,6 @@ def setup(sphinx):
     # Spack classes that intersphinx is unable to resolve
     ("py:class", "spack.version.StandardVersion"),
     ("py:class", "spack.spec.DependencySpec"),
-    ("py:class", "spack.spec.InstallStatus"),
-    ("py:class", "spack.spec.SpecfileReaderBase"),
     ("py:class", "spack.install_test.Pb"),
 ]
 
@@ -229,8 +233,30 @@ def setup(sphinx):
 # If true, sectionauthor and moduleauthor directives will be shown in the
 # output. They are ignored by default.
 # show_authors = False
-sys.path.append("./_pygments")
+
-pygments_style = "style.SpackStyle"
+# The name of the Pygments (syntax highlighting) style to use.
+# We use our own extension of the default style with a few modifications
+from pygments.style import Style
+from pygments.styles.default import DefaultStyle
+from pygments.token import Comment, Generic, Text
+
+
+class SpackStyle(DefaultStyle):
+    styles = DefaultStyle.styles.copy()
+    background_color = "#f4f4f8"
+    styles[Generic.Output] = "#355"
+    styles[Generic.Prompt] = "bold #346ec9"
+
+
+import pkg_resources
+
+dist = pkg_resources.Distribution(__file__)
+sys.path.append(".")  # make 'conf' module findable
+ep = pkg_resources.EntryPoint.parse("spack = conf:SpackStyle", dist=dist)
+dist._ep_map = {"pygments.styles": {"plugin1": ep}}
+pkg_resources.working_set.add(dist)
+
+pygments_style = "spack"
 
 # A list of ignored prefixes for module index sorting.
 # modindex_common_prefix = []
@@ -315,15 +341,16 @@ def setup(sphinx):
 # Output file base name for HTML help builder.
 htmlhelp_basename = "Spackdoc"
 
+
 # -- Options for LaTeX output --------------------------------------------------
 
 latex_elements = {
     # The paper size ('letterpaper' or 'a4paper').
-    # 'papersize': 'letterpaper',
+    #'papersize': 'letterpaper',
     # The font size ('10pt', '11pt' or '12pt').
-    # 'pointsize': '10pt',
+    #'pointsize': '10pt',
     # Additional stuff for the LaTeX preamble.
-    # 'preamble': '',
+    #'preamble': '',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples

lib/spack/docs/config_yaml.rst

@@ -292,13 +292,12 @@ It is also worth noting that:
          non_bindable_shared_objects = ["libinterface.so"]
 
 ----------------------
-``install_status``
+``terminal_title``
 ----------------------
 
-When set to ``true``, Spack will show information about its current progress
+By setting this option to ``true``, Spack will update the terminal's title to
-as well as the current and total package numbers. Progress is shown both
+provide information about its current progress as well as the current and
-in the terminal title and inline. Setting it to ``false`` will not show any
+total package numbers.
-progress information.
 
 To work properly, this requires your terminal to reset its title after
 Spack has finished its work, otherwise Spack's status information will

lib/spack/docs/containers.rst

@@ -636,7 +636,7 @@ to customize the generation of container recipes:
      - No
    * - ``os_packages:command``
      - Tool used to manage system packages
-     - ``apt``, ``yum``, ``dnf``, ``dnf_epel``, ``zypper``, ``apk``, ``yum_amazon``
+     - ``apt``, ``yum``, ``zypper``, ``apk``, ``yum_amazon``
      - Only with custom base images
    * - ``os_packages:update``
      - Whether or not to update the list of available packages

lib/spack/docs/contribution_guide.rst

@@ -310,11 +310,53 @@ Once all of the dependencies are installed, you can try building the documentati
    $ make clean
    $ make
 
-If you see any warning or error messages, you will have to correct those before your PR
+If you see any warning or error messages, you will have to correct those before
-is accepted. If you are editing the documentation, you should be running the
+your PR is accepted.
-documentation tests to make sure there are no errors. Documentation changes can result
+
-in some obfuscated warning messages. If you don't understand what they mean, feel free
+If you are editing the documentation, you should obviously be running the
-to ask when you submit your PR.
+documentation tests. But even if you are simply adding a new package, your
+changes could cause the documentation tests to fail:
+
+.. code-block:: console
+
+   package_list.rst:8745: WARNING: Block quote ends without a blank line; unexpected unindent.
+
+At first, this error message will mean nothing to you, since you didn't edit
+that file. Until you look at line 8745 of the file in question:
+
+.. code-block:: rst
+
+   Description:
+      NetCDF is a set of software libraries and self-describing, machine-
+     independent data formats that support the creation, access, and sharing
+     of array-oriented scientific data.
+
+Our documentation includes :ref:`a list of all Spack packages <package-list>`.
+If you add a new package, its docstring is added to this page. The problem in
+this case was that the docstring looked like:
+
+.. code-block:: python
+
+   class Netcdf(Package):
+       """
+       NetCDF is a set of software libraries and self-describing,
+       machine-independent data formats that support the creation,
+       access, and sharing of array-oriented scientific data.
+       """
+
+Docstrings cannot start with a newline character, or else Sphinx will complain.
+Instead, they should look like:
+
+.. code-block:: python
+
+   class Netcdf(Package):
+       """NetCDF is a set of software libraries and self-describing,
+       machine-independent data formats that support the creation,
+       access, and sharing of array-oriented scientific data."""
+
+Documentation changes can result in much more obfuscated warning messages.
+If you don't understand what they mean, feel free to ask when you submit
+your PR.
 
 --------
 Coverage

lib/spack/docs/environments.rst

@@ -916,9 +916,9 @@ function, as shown in the example below:
 .. code-block:: yaml
 
    projections:
-     zlib: "{name}-{version}"
+     zlib: {name}-{version}
-     ^mpi: "{name}-{version}/{^mpi.name}-{^mpi.version}-{compiler.name}-{compiler.version}"
+     ^mpi: {name}-{version}/{^mpi.name}-{^mpi.version}-{compiler.name}-{compiler.version}
-     all: "{name}-{version}/{compiler.name}-{compiler.version}"
+     all: {name}-{version}/{compiler.name}-{compiler.version}
 
 The entries in the projections configuration file must all be either
 specs or the keyword ``all``. For each spec, the projection used will
@@ -1132,11 +1132,11 @@ index once every package is pushed. Note how this target uses the generated
    example/push/%: example/install/%
    	@mkdir -p $(dir $@)
    	$(info About to push $(SPEC) to a buildcache)
-   	$(SPACK) -e . buildcache push --allow-root --only=package $(BUILDCACHE_DIR) /$(HASH)
+   	$(SPACK) -e . buildcache create --allow-root --only=package --directory $(BUILDCACHE_DIR) /$(HASH)
    	@touch $@
 
    push: $(addprefix example/push/,$(example/SPACK_PACKAGE_IDS))
    	$(info Updating the buildcache index)
-   	$(SPACK) -e . buildcache update-index $(BUILDCACHE_DIR)
+   	$(SPACK) -e . buildcache update-index --directory $(BUILDCACHE_DIR)
    	$(info Done!)
    	@touch $@

lib/spack/docs/getting_started.rst

@@ -317,7 +317,7 @@ installed, but you know that new compilers have been added to your
 
 .. code-block:: console
 
-   $ module load gcc/4.9.0
+   $ module load gcc-4.9.0
    $ spack compiler find
    ==> Added 1 new compiler to ~/.spack/linux/compilers.yaml
        gcc@4.9.0

lib/spack/docs/gpu_configuration.rst

@@ -1,113 +0,0 @@
-.. Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
-   Spack Project Developers. See the top-level COPYRIGHT file for details.
-
-   SPDX-License-Identifier: (Apache-2.0 OR MIT)
-
-==========================
-Using External GPU Support
-==========================
-
-Many packages come with a ``+cuda`` or ``+rocm`` variant. With no added
-configuration Spack will download and install the needed components.
-It may be preferable to use existing system support: the following sections
-help with using a system installation of GPU libraries.
-
------------------------------------
-Using an External ROCm Installation
------------------------------------
-
-Spack breaks down ROCm into many separate component packages. The following
-is an example ``packages.yaml`` that organizes a consistent set of ROCm
-components for use by dependent packages:
-
-.. code-block:: yaml
-
-   packages:
-     all:
-       compiler: [rocmcc@=5.3.0]
-       variants: amdgpu_target=gfx90a
-     hip:
-       buildable: false
-       externals:
-       - spec: hip@5.3.0
-         prefix: /opt/rocm-5.3.0/hip
-     hsa-rocr-dev:
-       buildable: false
-       externals:
-       - spec: hsa-rocr-dev@5.3.0
-         prefix: /opt/rocm-5.3.0/
-     llvm-amdgpu:
-       buildable: false
-       externals:
-       - spec: llvm-amdgpu@5.3.0
-         prefix: /opt/rocm-5.3.0/llvm/
-     comgr:
-       buildable: false
-       externals:
-       - spec: comgr@5.3.0
-         prefix: /opt/rocm-5.3.0/
-     hipsparse:
-       buildable: false
-       externals:
-       - spec: hipsparse@5.3.0
-         prefix: /opt/rocm-5.3.0/
-     hipblas:
-       buildable: false
-       externals:
-       - spec: hipblas@5.3.0
-         prefix: /opt/rocm-5.3.0/
-     rocblas:
-       buildable: false
-       externals:
-       - spec: rocblas@5.3.0
-         prefix: /opt/rocm-5.3.0/
-     rocprim:
-       buildable: false
-       externals:
-       - spec: rocprim@5.3.0
-         prefix: /opt/rocm-5.3.0/rocprim/
-
-This is in combination with the following compiler definition:
-
-.. code-block:: yaml
-
-   compilers:
-   - compiler:
-       spec: rocmcc@=5.3.0
-       paths:
-         cc: /opt/rocm-5.3.0/bin/amdclang
-         cxx: /opt/rocm-5.3.0/bin/amdclang++
-         f77: null
-         fc: /opt/rocm-5.3.0/bin/amdflang
-       operating_system: rhel8
-       target: x86_64
-
-This includes the following considerations:
-
-- Each of the listed externals specifies ``buildable: false`` to force Spack
-  to use only the externals we defined.
-- ``spack external find`` can automatically locate some of the ``hip``/``rocm``
-  packages, but not all of them, and furthermore not in a manner that
-  guarantees a complementary set if multiple ROCm installations are available.
-- The ``prefix`` is the same for several components, but note that others
-  require listing one of the subdirectories as a prefix.
-
------------------------------------
-Using an External CUDA Installation
------------------------------------
-
-CUDA is split into fewer components and is simpler to specify:
-
-.. code-block:: yaml
-
-   packages:
-     all:
-       variants:
-       - cuda_arch=70
-     cuda:
-       buildable: false
-       externals:
-       - spec: cuda@11.0.2
-         prefix: /opt/cuda/cuda-11.0.2/
-
-where ``/opt/cuda/cuda-11.0.2/lib/`` contains ``libcudart.so``.

lib/spack/docs/index.rst

@@ -54,16 +54,9 @@ or refer to the full manual below.
    features
    getting_started
    basic_usage
+   Tutorial: Spack 101 <https://spack-tutorial.readthedocs.io>
    replace_conda_homebrew
 
-.. toctree::
-   :maxdepth: 2
-   :caption: Links
-
-   Tutorial (spack-tutorial.rtfd.io) <https://spack-tutorial.readthedocs.io>
-   Packages (packages.spack.io) <https://packages.spack.io>
-   Binaries (binaries.spack.io) <https://cache.spack.io>
-
 .. toctree::
    :maxdepth: 2
    :caption: Reference
@@ -79,11 +72,10 @@ or refer to the full manual below.
    repositories
    binary_caches
    command_index
+   package_list
    chain
    extensions
    pipelines
-   signing
-   gpu_configuration
 
 .. toctree::
    :maxdepth: 2

lib/spack/docs/module_file_support.rst

@@ -35,27 +35,27 @@ showing lots of installed packages:
    $ module avail
 
    --------------------------------------------------------------- ~/spack/share/spack/modules/linux-ubuntu14-x86_64 ---------------------------------------------------------------
-   autoconf/2.69-gcc-4.8-qextxkq       hwloc/1.11.6-gcc-6.3.0-akcisez             m4/1.4.18-gcc-4.8-ev2znoc                   openblas/0.2.19-gcc-6.3.0-dhkmed6        py-setuptools/34.2.0-gcc-6.3.0-fadur4s
+   autoconf-2.69-gcc-4.8-qextxkq       hwloc-1.11.6-gcc-6.3.0-akcisez             m4-1.4.18-gcc-4.8-ev2znoc                   openblas-0.2.19-gcc-6.3.0-dhkmed6        py-setuptools-34.2.0-gcc-6.3.0-fadur4s
-   automake/1.15-gcc-4.8-maqvukj       isl/0.18-gcc-4.8-afi6taq                   m4/1.4.18-gcc-6.3.0-uppywnz                 openmpi/2.1.0-gcc-6.3.0-go2s4z5          py-six/1.10.0-gcc-6.3.0-p4dhkaw
+   automake-1.15-gcc-4.8-maqvukj       isl-0.18-gcc-4.8-afi6taq                   m4-1.4.18-gcc-6.3.0-uppywnz                 openmpi-2.1.0-gcc-6.3.0-go2s4z5          py-six-1.10.0-gcc-6.3.0-p4dhkaw
-   binutils/2.28-gcc-4.8-5s7c6rs       libiconv/1.15-gcc-4.8-at46wg3              mawk/1.3.4-gcc-4.8-acjez57                  openssl/1.0.2k-gcc-4.8-dkls5tk           python/2.7.13-gcc-6.3.0-tyehea7
+   binutils-2.28-gcc-4.8-5s7c6rs       libiconv-1.15-gcc-4.8-at46wg3              mawk-1.3.4-gcc-4.8-acjez57                  openssl-1.0.2k-gcc-4.8-dkls5tk           python-2.7.13-gcc-6.3.0-tyehea7
-   bison/3.0.4-gcc-4.8-ek4luo5         libpciaccess/0.13.4-gcc-6.3.0-gmufnvh      mawk/1.3.4-gcc-6.3.0-ostdoms                openssl/1.0.2k-gcc-6.3.0-gxgr5or         readline/7.0-gcc-4.8-xhufqhn
+   bison-3.0.4-gcc-4.8-ek4luo5         libpciaccess-0.13.4-gcc-6.3.0-gmufnvh      mawk-1.3.4-gcc-6.3.0-ostdoms                openssl-1.0.2k-gcc-6.3.0-gxgr5or         readline-7.0-gcc-4.8-xhufqhn
-   bzip2/1.0.6-gcc-4.8-iffrxzn         libsigsegv/2.11-gcc-4.8-pp2cvte            mpc/1.0.3-gcc-4.8-g5mztc5                   pcre/8.40-gcc-4.8-r5pbrxb                readline/7.0-gcc-6.3.0-zzcyicg
+   bzip2-1.0.6-gcc-4.8-iffrxzn         libsigsegv-2.11-gcc-4.8-pp2cvte            mpc-1.0.3-gcc-4.8-g5mztc5                   pcre-8.40-gcc-4.8-r5pbrxb                readline-7.0-gcc-6.3.0-zzcyicg
-   bzip2/1.0.6-gcc-6.3.0-bequudr       libsigsegv/2.11-gcc-6.3.0-7enifnh          mpfr/3.1.5-gcc-4.8-o7xm7az                  perl/5.24.1-gcc-4.8-dg5j65u              sqlite/3.8.5-gcc-6.3.0-6zoruzj
+   bzip2-1.0.6-gcc-6.3.0-bequudr       libsigsegv-2.11-gcc-6.3.0-7enifnh          mpfr-3.1.5-gcc-4.8-o7xm7az                  perl-5.24.1-gcc-4.8-dg5j65u              sqlite-3.8.5-gcc-6.3.0-6zoruzj
-   cmake/3.7.2-gcc-6.3.0-fowuuby       libtool/2.4.6-gcc-4.8-7a523za              mpich/3.2-gcc-6.3.0-dmvd3aw                 perl/5.24.1-gcc-6.3.0-6uzkpt6            tar/1.29-gcc-4.8-wse2ass
+   cmake-3.7.2-gcc-6.3.0-fowuuby       libtool-2.4.6-gcc-4.8-7a523za              mpich-3.2-gcc-6.3.0-dmvd3aw                 perl-5.24.1-gcc-6.3.0-6uzkpt6            tar-1.29-gcc-4.8-wse2ass
-   curl/7.53.1-gcc-4.8-3fz46n6         libtool/2.4.6-gcc-6.3.0-n7zmbzt            ncurses/6.0-gcc-4.8-dcpe7ia                 pkg-config/0.29.2-gcc-4.8-ib33t75        tcl/8.6.6-gcc-4.8-tfxzqbr
+   curl-7.53.1-gcc-4.8-3fz46n6         libtool-2.4.6-gcc-6.3.0-n7zmbzt            ncurses-6.0-gcc-4.8-dcpe7ia                 pkg-config-0.29.2-gcc-4.8-ib33t75        tcl-8.6.6-gcc-4.8-tfxzqbr
-   expat/2.2.0-gcc-4.8-mrv6bd4         libxml2/2.9.4-gcc-4.8-ryzxnsu              ncurses/6.0-gcc-6.3.0-ucbhcdy               pkg-config/0.29.2-gcc-6.3.0-jpgubk3      util-macros/1.19.1-gcc-6.3.0-xorz2x2
+   expat-2.2.0-gcc-4.8-mrv6bd4         libxml2-2.9.4-gcc-4.8-ryzxnsu              ncurses-6.0-gcc-6.3.0-ucbhcdy               pkg-config-0.29.2-gcc-6.3.0-jpgubk3      util-macros-1.19.1-gcc-6.3.0-xorz2x2
-   flex/2.6.3-gcc-4.8-yf345oo          libxml2/2.9.4-gcc-6.3.0-rltzsdh            netlib-lapack/3.6.1-gcc-6.3.0-js33dog       py-appdirs/1.4.0-gcc-6.3.0-jxawmw7       xz/5.2.3-gcc-4.8-mew4log
+   flex-2.6.3-gcc-4.8-yf345oo          libxml2-2.9.4-gcc-6.3.0-rltzsdh            netlib-lapack-3.6.1-gcc-6.3.0-js33dog       py-appdirs-1.4.0-gcc-6.3.0-jxawmw7       xz-5.2.3-gcc-4.8-mew4log
-   gcc/6.3.0-gcc-4.8-24puqve           lmod/7.4.1-gcc-4.8-je4srhr                 netlib-scalapack/2.0.2-gcc-6.3.0-5aidk4l    py-numpy/1.12.0-gcc-6.3.0-oemmoeu        xz/5.2.3-gcc-6.3.0-3vqeuvb
+   gcc-6.3.0-gcc-4.8-24puqve           lmod-7.4.1-gcc-4.8-je4srhr                 netlib-scalapack-2.0.2-gcc-6.3.0-5aidk4l    py-numpy-1.12.0-gcc-6.3.0-oemmoeu        xz-5.2.3-gcc-6.3.0-3vqeuvb
-   gettext/0.19.8.1-gcc-4.8-yymghlh    lua/5.3.4-gcc-4.8-im75yaz                  netlib-scalapack/2.0.2-gcc-6.3.0-hjsemcn    py-packaging/16.8-gcc-6.3.0-i2n3dtl      zip/3.0-gcc-4.8-rwar22d
+   gettext-0.19.8.1-gcc-4.8-yymghlh    lua-5.3.4-gcc-4.8-im75yaz                  netlib-scalapack-2.0.2-gcc-6.3.0-hjsemcn    py-packaging-16.8-gcc-6.3.0-i2n3dtl      zip-3.0-gcc-4.8-rwar22d
-   gmp/6.1.2-gcc-4.8-5ub2wu5           lua-luafilesystem/1_6_3-gcc-4.8-wkey3nl    netlib-scalapack/2.0.2-gcc-6.3.0-jva724b    py-pyparsing/2.1.10-gcc-6.3.0-tbo6gmw    zlib/1.2.11-gcc-4.8-pgxsxv7
+   gmp-6.1.2-gcc-4.8-5ub2wu5           lua-luafilesystem-1_6_3-gcc-4.8-wkey3nl    netlib-scalapack-2.0.2-gcc-6.3.0-jva724b    py-pyparsing-2.1.10-gcc-6.3.0-tbo6gmw    zlib-1.2.11-gcc-4.8-pgxsxv7
-   help2man/1.47.4-gcc-4.8-kcnqmau     lua-luaposix/33.4.0-gcc-4.8-mdod2ry        netlib-scalapack/2.0.2-gcc-6.3.0-rgqfr6d    py-scipy/0.19.0-gcc-6.3.0-kr7nat4        zlib/1.2.11-gcc-6.3.0-7cqp6cj
+   help2man-1.47.4-gcc-4.8-kcnqmau     lua-luaposix-33.4.0-gcc-4.8-mdod2ry        netlib-scalapack-2.0.2-gcc-6.3.0-rgqfr6d    py-scipy-0.19.0-gcc-6.3.0-kr7nat4        zlib-1.2.11-gcc-6.3.0-7cqp6cj
 
 The names should look familiar, as they resemble the output from ``spack find``.
 For example, you could type the following command to load the ``cmake`` module:
 
 .. code-block:: console
 
-   $ module load cmake/3.7.2-gcc-6.3.0-fowuuby
+   $ module load cmake-3.7.2-gcc-6.3.0-fowuuby
 
 Neither of these is particularly pretty, easy to remember, or easy to
 type. Luckily, Spack offers many facilities for customizing the module
@@ -275,12 +275,10 @@ of the installed software. For instance, in the snippet below:
              set:
                BAR: 'bar'
          # This anonymous spec selects any package that
-         # depends on mpi. The double colon at the
+         # depends on openmpi. The double colon at the
          # end clears the set of rules that matched so far.
-         ^mpi::
+         ^openmpi::
            environment:
-             prepend_path:
-               PATH: '{^mpi.prefix}/bin'
              set:
                BAR: 'baz'
          # Selects any zlib package
@@ -295,9 +293,7 @@ of the installed software. For instance, in the snippet below:
              - FOOBAR
 
 you are instructing Spack to set the environment variable ``BAR=bar`` for every module,
-unless the associated spec satisfies the abstract dependency ``^mpi`` in which case
+unless the associated spec satisfies ``^openmpi`` in which case ``BAR=baz``.
-``BAR=baz``, and the directory containing the respective MPI executables is prepended
-to the ``PATH`` variable.
 In addition in any spec that satisfies ``zlib`` the value ``foo`` will be
 prepended to ``LD_LIBRARY_PATH`` and in any spec that satisfies ``zlib%gcc@4.8``
 the variable ``FOOBAR`` will be unset.
@@ -400,30 +396,28 @@ that are already in the Lmod hierarchy.
 
 
 .. note::
-   Tcl and Lua modules also allow for explicit conflicts between modulefiles.
+   Tcl modules
+     Tcl modules also allow for explicit conflicts between modulefiles.
 
-   .. code-block:: yaml
+     .. code-block:: yaml
 
-      modules:
+        modules:
-        default:
+          default:
-          enable:
+            enable:
-            - tcl
+              - tcl
-          tcl:
+            tcl:
-            projections:
+              projections:
-              all: '{name}/{version}-{compiler.name}-{compiler.version}'
+                all: '{name}/{version}-{compiler.name}-{compiler.version}'
-            all:
+              all:
-              conflict:
+                conflict:
-                - '{name}'
+                  - '{name}'
-                - 'intel/14.0.1'
+                  - 'intel/14.0.1'
 
-   will create module files that will conflict with ``intel/14.0.1`` and with the
+     will create module files that will conflict with ``intel/14.0.1`` and with the
-   base directory of the same module, effectively preventing the possibility to
+     base directory of the same module, effectively preventing the possibility to
-   load two or more versions of the same software at the same time. The tokens
+     load two or more versions of the same software at the same time. The tokens
-   that are available for use in this directive are the same understood by the
+     that are available for use in this directive are the same understood by
-   :meth:`~spack.spec.Spec.format` method.
+     the :meth:`~spack.spec.Spec.format` method.
-
-   For Lmod and Environment Modules versions prior 4.2, it is important to
-   express the conflict on both modulefiles conflicting with each other.
 
 
 .. note::
@@ -785,35 +779,35 @@ cut-and-pasted into a shell script.  For example:
 
     $ spack module tcl loads --dependencies py-numpy git
     # bzip2@1.0.6%gcc@4.9.3=linux-x86_64
-    module load bzip2/1.0.6-gcc-4.9.3-ktnrhkrmbbtlvnagfatrarzjojmkvzsx
+    module load bzip2-1.0.6-gcc-4.9.3-ktnrhkrmbbtlvnagfatrarzjojmkvzsx
     # ncurses@6.0%gcc@4.9.3=linux-x86_64
-    module load ncurses/6.0-gcc-4.9.3-kaazyneh3bjkfnalunchyqtygoe2mncv
+    module load ncurses-6.0-gcc-4.9.3-kaazyneh3bjkfnalunchyqtygoe2mncv
     # zlib@1.2.8%gcc@4.9.3=linux-x86_64
-    module load zlib/1.2.8-gcc-4.9.3-v3ufwaahjnviyvgjcelo36nywx2ufj7z
+    module load zlib-1.2.8-gcc-4.9.3-v3ufwaahjnviyvgjcelo36nywx2ufj7z
     # sqlite@3.8.5%gcc@4.9.3=linux-x86_64
-    module load sqlite/3.8.5-gcc-4.9.3-a3eediswgd5f3rmto7g3szoew5nhehbr
+    module load sqlite-3.8.5-gcc-4.9.3-a3eediswgd5f3rmto7g3szoew5nhehbr
     # readline@6.3%gcc@4.9.3=linux-x86_64
-    module load readline/6.3-gcc-4.9.3-se6r3lsycrwxyhreg4lqirp6xixxejh3
+    module load readline-6.3-gcc-4.9.3-se6r3lsycrwxyhreg4lqirp6xixxejh3
     # python@3.5.1%gcc@4.9.3=linux-x86_64
-    module load python/3.5.1-gcc-4.9.3-5q5rsrtjld4u6jiicuvtnx52m7tfhegi
+    module load python-3.5.1-gcc-4.9.3-5q5rsrtjld4u6jiicuvtnx52m7tfhegi
     # py-setuptools@20.5%gcc@4.9.3=linux-x86_64
-    module load py-setuptools/20.5-gcc-4.9.3-4qr2suj6p6glepnedmwhl4f62x64wxw2
+    module load py-setuptools-20.5-gcc-4.9.3-4qr2suj6p6glepnedmwhl4f62x64wxw2
     # py-nose@1.3.7%gcc@4.9.3=linux-x86_64
-    module load py-nose/1.3.7-gcc-4.9.3-pwhtjw2dvdvfzjwuuztkzr7b4l6zepli
+    module load py-nose-1.3.7-gcc-4.9.3-pwhtjw2dvdvfzjwuuztkzr7b4l6zepli
     # openblas@0.2.17%gcc@4.9.3+shared=linux-x86_64
-    module load openblas/0.2.17-gcc-4.9.3-pw6rmlom7apfsnjtzfttyayzc7nx5e7y
+    module load openblas-0.2.17-gcc-4.9.3-pw6rmlom7apfsnjtzfttyayzc7nx5e7y
     # py-numpy@1.11.0%gcc@4.9.3+blas+lapack=linux-x86_64
-    module load py-numpy/1.11.0-gcc-4.9.3-mulodttw5pcyjufva4htsktwty4qd52r
+    module load py-numpy-1.11.0-gcc-4.9.3-mulodttw5pcyjufva4htsktwty4qd52r
     # curl@7.47.1%gcc@4.9.3=linux-x86_64
-    module load curl/7.47.1-gcc-4.9.3-ohz3fwsepm3b462p5lnaquv7op7naqbi
+    module load curl-7.47.1-gcc-4.9.3-ohz3fwsepm3b462p5lnaquv7op7naqbi
     # autoconf@2.69%gcc@4.9.3=linux-x86_64
-    module load autoconf/2.69-gcc-4.9.3-bkibjqhgqm5e3o423ogfv2y3o6h2uoq4
+    module load autoconf-2.69-gcc-4.9.3-bkibjqhgqm5e3o423ogfv2y3o6h2uoq4
     # cmake@3.5.0%gcc@4.9.3~doc+ncurses+openssl~qt=linux-x86_64
-    module load cmake/3.5.0-gcc-4.9.3-x7xnsklmgwla3ubfgzppamtbqk5rwn7t
+    module load cmake-3.5.0-gcc-4.9.3-x7xnsklmgwla3ubfgzppamtbqk5rwn7t
     # expat@2.1.0%gcc@4.9.3=linux-x86_64
-    module load expat/2.1.0-gcc-4.9.3-6pkz2ucnk2e62imwakejjvbv6egncppd
+    module load expat-2.1.0-gcc-4.9.3-6pkz2ucnk2e62imwakejjvbv6egncppd
     # git@2.8.0-rc2%gcc@4.9.3+curl+expat=linux-x86_64
-    module load git/2.8.0-rc2-gcc-4.9.3-3bib4hqtnv5xjjoq5ugt3inblt4xrgkd
+    module load git-2.8.0-rc2-gcc-4.9.3-3bib4hqtnv5xjjoq5ugt3inblt4xrgkd
 
 The script may be further edited by removing unnecessary modules.
 
@@ -832,12 +826,12 @@ For example, consider the following on one system:
 .. code-block:: console
 
     $ module avail
-    linux-SuSE11-x86_64/antlr/2.7.7-gcc-5.3.0-bdpl46y
+    linux-SuSE11-x86_64/antlr-2.7.7-gcc-5.3.0-bdpl46y
 
     $ spack module tcl loads antlr    # WRONG!
     # antlr@2.7.7%gcc@5.3.0~csharp+cxx~java~python arch=linux-SuSE11-x86_64
-    module load antlr/2.7.7-gcc-5.3.0-bdpl46y
+    module load antlr-2.7.7-gcc-5.3.0-bdpl46y
 
     $ spack module tcl loads --prefix linux-SuSE11-x86_64/ antlr
     # antlr@2.7.7%gcc@5.3.0~csharp+cxx~java~python arch=linux-SuSE11-x86_64
-    module load linux-SuSE11-x86_64/antlr/2.7.7-gcc-5.3.0-bdpl46y
+    module load linux-SuSE11-x86_64/antlr-2.7.7-gcc-5.3.0-bdpl46y

lib/spack/docs/package_list.rst

@@ -0,0 +1,17 @@
+.. Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
+   Spack Project Developers. See the top-level COPYRIGHT file for details.
+
+   SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+.. _package-list:
+
+============
+Package List
+============
+
+This is a list of things you can install using Spack.  It is
+automatically generated based on the packages in this Spack
+version.
+
+.. raw:: html
+   :file: package_list.html

lib/spack/docs/packaging_guide.rst

@@ -121,7 +121,7 @@ Since v0.19, Spack supports  two ways of writing a package recipe. The most comm
 
        def url_for_version(self, version):
            if version >= Version("2.1.1"):
-               return super().url_for_version(version)
+               return super(Openjpeg, self).url_for_version(version)
            url_fmt = "https://github.com/uclouvain/openjpeg/archive/version.{0}.tar.gz"
            return url_fmt.format(version)
 
@@ -155,7 +155,7 @@ builder class explicitly. Using the same example as above, this reads:
 
        def url_for_version(self, version):
            if version >= Version("2.1.1"):
-               return super().url_for_version(version)
+               return super(Openjpeg, self).url_for_version(version)
            url_fmt = "https://github.com/uclouvain/openjpeg/archive/version.{0}.tar.gz"
            return url_fmt.format(version)
 
@@ -363,42 +363,6 @@ one of these::
 If Spack finds none of these variables set, it will look for ``vim``, ``vi``, ``emacs``,
 ``nano``, and ``notepad``, in that order.
 
-^^^^^^^^^^^^^^^^^
-Bundling software
-^^^^^^^^^^^^^^^^^
-
-If you have a collection of software expected to work well together with
-no source code of its own, you can create a :ref:`BundlePackage <bundlepackage>`.
-Examples where bundle packages can be useful include defining suites of
-applications (e.g, `EcpProxyApps
-<https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/ecp-proxy-apps/package.py>`_), commonly used libraries
-(e.g., `AmdAocl <https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/amd-aocl/package.py>`_),
-and software development kits (e.g., `EcpDataVisSdk <https://github.com/spack/spack/blob/develop/var/spack/repos/builtin/packages/ecp-data-vis-sdk/package.py>`_).
-
-These versioned packages primarily consist of dependencies on the associated
-software packages. They can include :ref:`variants <variants>` to ensure
-common build options are consistently applied to dependencies. Known build
-failures, such as not building on a platform or when certain compilers or
-variants are used, can be flagged with :ref:`conflicts <packaging_conflicts>`.
-Build requirements, such as only building with specific compilers, can similarly
-be flagged with :ref:`requires <packaging_conflicts>`.
-
-The ``spack create --template bundle`` command will create a skeleton
-``BundlePackage`` ``package.py`` for you:
-
-.. code-block:: console
-
-   $ spack create --template bundle --name coolsdk
-
-Now you can fill in the basic package documentation, version(s), and software
-package dependencies along with any other relevant customizations.
-
-.. note::
-
-   Remember that bundle packages have no software of their own so there
-   is nothing to download.
-
-
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 Non-downloadable software
 ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -646,16 +610,7 @@ add a line like this in the package class:
        version("8.2.0", md5="1c9f62f0778697a09d36121ead88e08e")
        version("8.1.2", md5="d47dd09ed7ae6e7fd6f9a816d7f5fdf6")
 
-.. note::
+Versions should be listed in descending order, from newest to oldest.
-
-   By convention, we list versions in descending order, from newest to oldest.
-
-.. note::
-
-   :ref:`Bundle packages  <bundlepackage>` do not have source code so
-   there is nothing to fetch. Consequently, their version directives
-   consist solely of the version name (e.g., ``version("202309")``).
-
 
 ^^^^^^^^^^^^^
 Date Versions
@@ -2288,7 +2243,7 @@ looks like this:
        url      = "http://www.openssl.org/source/openssl-1.0.1h.tar.gz"
 
        version("1.0.1h", md5="8d6d684a9430d5cc98a62a5d8fbda8cf")
-       depends_on("zlib-api")
+       depends_on("zlib")
 
        parallel = False
 
@@ -2723,7 +2678,7 @@ Conflicts and requirements
 --------------------------
 
 Sometimes packages have known bugs, or limitations, that would prevent them
-from building e.g. against other dependencies or with certain compilers. Spack
+to build e.g. against other dependencies or with certain compilers. Spack
 makes it possible to express such constraints with the ``conflicts`` directive.
 
 Adding the following to a package:
@@ -3116,7 +3071,7 @@ follows:
        # The library provided by the bar virtual package
        @property
        def bar_libs(self):
-           return find_libraries("libFooBar", root=self.home, recursive=True)
+           return find_libraries("libFooBar", root=sef.home, recursive=True)
 
        # The baz virtual package home
        @property
@@ -4818,17 +4773,17 @@ For example, running:
 
 results in spack checking that the installation created the following **file**:
 
-* ``self.prefix.bin.reframe``
+* ``self.prefix/bin/reframe``
 
 and the following **directories**:
 
-* ``self.prefix.bin``
+* ``self.prefix/bin``
-* ``self.prefix.config``
+* ``self.prefix/config``
-* ``self.prefix.docs``
+* ``self.prefix/docs``
-* ``self.prefix.reframe``
+* ``self.prefix/reframe``
-* ``self.prefix.tutorials``
+* ``self.prefix/tutorials``
-* ``self.prefix.unittests``
+* ``self.prefix/unittests``
-* ``self.prefix.cscs-checks``
+* ``self.prefix/cscs-checks``
 
 If **any** of these paths are missing, then Spack considers the installation
 to have failed.
@@ -4972,7 +4927,7 @@ installed executable. The check is implemented as follows:
        @on_package_attributes(run_tests=True)
        def check_list(self):
             with working_dir(self.stage.source_path):
-                reframe = Executable(self.prefix.bin.reframe)
+                reframe = Executable(join_path(self.prefix, "bin", "reframe"))
                 reframe("-l")
 
 .. warning::
@@ -5192,8 +5147,8 @@ embedded test parts.
            for example in ["ex1", "ex2"]:
                with test_part(
                    self,
-                   f"test_example_{example}",
+                   "test_example_{0}".format(example),
-                   purpose=f"run installed {example}",
+                   purpose="run installed {0}".format(example),
                 ):
                     exe = which(join_path(self.prefix.bin, example))
                     exe()
@@ -5271,10 +5226,11 @@ Below illustrates using this feature to compile an example.
            ...
            cxx = which(os.environ["CXX"])
            cxx(
-               f"-L{self.prefix.lib}",
+               "-L{0}".format(self.prefix.lib),
-               f"-I{self.prefix.include}",
+               "-I{0}".format(self.prefix.include),
-               f"{exe}.cpp",
+               "{0}.cpp".format(exe),
-               "-o", exe
+               "-o",
+               exe
            )
            cxx_example = which(exe)
            cxx_example()
@@ -5291,14 +5247,14 @@ Saving build-time files
     We highly recommend re-using build-time test sources and pared down
     input files for testing installed software. These files are easier
     to keep synchronized with software capabilities since they reside
-    within the software's repository.
+    within the software's repository. 
-
+    
     If that is not possible, you can add test-related files to the package
     repository (see :ref:`adding custom files <cache_custom_files>`). It
     will be important to maintain them so they work across listed or supported
     versions of the package.
 
-You can use the ``cache_extra_test_sources`` helper to copy directories
+You can use the ``cache_extra_test_sources`` method to copy directories
 and or files from the source build stage directory to the package's
 installation directory.
 
@@ -5306,15 +5262,10 @@ The signature for ``cache_extra_test_sources`` is:
 
 .. code-block:: python
 
-   def cache_extra_test_sources(pkg, srcs):
+   def cache_extra_test_sources(self, srcs):
-
-where each argument has the following meaning:
-
-* ``pkg`` is an instance of the package for the spec under test.
-
-* ``srcs`` is a string *or* a list of strings corresponding to the
-  paths of subdirectories and or files needed for stand-alone testing.
 
+where ``srcs`` is a string *or* a list of strings corresponding to the
+paths of subdirectories and or files needed for stand-alone testing. 
 The paths must be relative to the staged source directory. Contents of
 subdirectories and files are copied to a special test cache subdirectory
 of the installation prefix. They are automatically copied to the appropriate
@@ -5335,18 +5286,21 @@ and using ``foo.c`` in a test method is illustrated below.
            srcs = ["tests",
                    join_path("examples", "foo.c"),
                    join_path("examples", "bar.c")]
-           cache_extra_test_sources(self, srcs)
+           self.cache_extra_test_sources(srcs)
 
        def test_foo(self):
            exe = "foo"
-           src_dir = self.test_suite.current_test_cache_dir.examples
+           src_dir = join_path(
+               self.test_suite.current_test_cache_dir, "examples"
+           )
            with working_dir(src_dir):
                cc = which(os.environ["CC"])
                cc(
-                   f"-L{self.prefix.lib}",
+                   "-L{0}".format(self.prefix.lib),
-                   f"-I{self.prefix.include}",
+                   "-I{0}".format(self.prefix.include),
-                   f"{exe}.c",
+                   "{0}.c".format(exe),
-                   "-o", exe
+                   "-o",
+                   exe
                )
                foo = which(exe)
                foo()
@@ -5372,9 +5326,9 @@ the files using the ``self.test_suite.current_test_cache_dir`` property.
 In our example above, test methods can use the following paths to reference
 the copy of each entry listed in ``srcs``, respectively:
 
-* ``self.test_suite.current_test_cache_dir.tests``
+* ``join_path(self.test_suite.current_test_cache_dir, "tests")``
-* ``join_path(self.test_suite.current_test_cache_dir.examples, "foo.c")``
+* ``join_path(self.test_suite.current_test_cache_dir, "examples", "foo.c")``
-* ``join_path(self.test_suite.current_test_cache_dir.examples, "bar.c")``
+* ``join_path(self.test_suite.current_test_cache_dir, "examples", "bar.c")``
 
 .. admonition:: Library packages should build stand-alone tests
 
@@ -5393,7 +5347,7 @@ the copy of each entry listed in ``srcs``, respectively:
     If one or more of the copied files needs to be modified to reference
     the installed software, it is recommended that those changes be made
     to the cached files **once** in the ``copy_test_sources`` method and
-    ***after** the call to ``cache_extra_test_sources()``. This will
+    ***after** the call to ``self.cache_extra_test_sources()``. This will
     reduce the amount of unnecessary work in the test method **and** avoid
     problems testing in shared instances and facility deployments.
 
@@ -5440,7 +5394,7 @@ property as shown below.
            """build and run custom-example"""
            data_dir = self.test_suite.current_test_data_dir
            exe = "custom-example"
-           src = datadir.join(f"{exe}.cpp")
+           src = datadir.join("{0}.cpp".format(exe))
            ...
            # TODO: Build custom-example using src and exe
            ...
@@ -5456,7 +5410,7 @@ Reading expected output from a file
 
 The helper function ``get_escaped_text_output`` is available for packages
 to retrieve and properly format the text from a file that contains the
-expected output from running an executable that may contain special
+expected output from running an executable that may contain special 
 characters.
 
 The signature for ``get_escaped_text_output`` is:
@@ -5490,7 +5444,7 @@ added to the package's ``test`` subdirectory.
                db_filename, ".dump", output=str.split, error=str.split
            )
            for exp in expected:
-               assert re.search(exp, out), f"Expected '{exp}' in output"
+               assert re.search(exp, out), "Expected '{0}' in output".format(exp)
 
 If the file was instead copied from the ``tests`` subdirectory of the staged
 source code, the path would be obtained as shown below.
@@ -5503,7 +5457,7 @@ source code, the path would be obtained as shown below.
            db_filename = test_cache_dir.join("packages.db")
 
 Alternatively, if the file was copied to the ``share/tests`` subdirectory
-as part of the installation process, the test could access the path as
+as part of the installation process, the test could access the path as 
 follows:
 
 .. code-block:: python
@@ -5540,12 +5494,9 @@ Invoking the method is the equivalent of:
 
 .. code-block:: python
 
-   errors = []
    for check in expected:
        if not re.search(check, actual):
-           errors.append(f"Expected '{check}' in output '{actual}'")
+           raise RuntimeError("Expected '{0}' in output '{1}'".format(check, actual))
-   if errors:
-       raise RuntimeError("\n ".join(errors))
 
 
 .. _accessing-files:
@@ -5585,7 +5536,7 @@ repository, and installation.
      - ``self.test_suite.test_dir_for_spec(self.spec)``
    * - Current Spec's Build-time Files
      - ``self.test_suite.current_test_cache_dir``
-     - ``join_path(self.test_suite.current_test_cache_dir.examples, "foo.c")``
+     - ``join_path(self.test_suite.current_test_cache_dir, "examples", "foo.c")``
    * - Current Spec's Custom Test Files
      - ``self.test_suite.current_test_data_dir``
      - ``join_path(self.test_suite.current_test_data_dir, "hello.f90")``
@@ -5600,7 +5551,7 @@ Inheriting stand-alone tests
 Stand-alone tests defined in parent (.e.g., :ref:`build-systems`) and
 virtual (e.g., :ref:`virtual-dependencies`) packages are executed by
 packages that inherit from or provide interface implementations for those
-packages, respectively.
+packages, respectively. 
 
 The table below summarizes the stand-alone tests that will be executed along
 with those implemented in the package itself.
@@ -5670,7 +5621,7 @@ for ``openmpi``:
    SKIPPED: test_version_oshcc: oshcc is not installed
    ...
    ==> [2023-03-10-16:04:02.215227] Completed testing
-   ==> [2023-03-10-16:04:02.215597]
+   ==> [2023-03-10-16:04:02.215597] 
    ======================== SUMMARY: openmpi-4.1.4-ubmrigj ========================
    Openmpi::test_bin_mpirun .. PASSED
    Openmpi::test_bin_ompi_info .. PASSED
@@ -6120,7 +6071,7 @@ in the extra attributes can implement this method like this:
    @classmethod
    def validate_detected_spec(cls, spec, extra_attributes):
        """Check that "compilers" is in the extra attributes."""
-       msg = ("the extra attribute 'compilers' must be set for "
+       msg = ("the extra attribute "compilers" must be set for "
               "the detected spec '{0}'".format(spec))
        assert "compilers" in extra_attributes, msg
 
@@ -6196,100 +6147,7 @@ follows:
                "foo-package@{0}".format(version_str)
            )
 
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. _package-lifecycle:
-Add detection tests to packages
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-To ensure that software is detected correctly for multiple configurations
-and on different systems users can write a ``detection_test.yaml`` file and
-put it in the package directory alongside the ``package.py`` file.
-This YAML file contains enough information for Spack to mock an environment
-and try to check if the detection logic yields the results that are expected.
-
-As a general rule, attributes at the top-level of ``detection_test.yaml``
-represent search mechanisms and they each map to a list of tests that should confirm
-the validity of the package's detection logic.
-
-The detection tests can be run with the following command:
-
-.. code-block:: console
-
-   $ spack audit externals
-
-Errors that have been detected are reported to screen.
-
-""""""""""""""""""""""""""
-Tests for PATH inspections
-""""""""""""""""""""""""""
-
-Detection tests insisting on ``PATH`` inspections are listed under
-the ``paths`` attribute:
-
-.. code-block:: yaml
-
-   paths:
-   - layout:
-     - executables:
-       - "bin/clang-3.9"
-       - "bin/clang++-3.9"
-       script: |
-         echo "clang version 3.9.1-19ubuntu1 (tags/RELEASE_391/rc2)"
-         echo "Target: x86_64-pc-linux-gnu"
-         echo "Thread model: posix"
-         echo "InstalledDir: /usr/bin"
-     results:
-     - spec: 'llvm@3.9.1 +clang~lld~lldb'
-
-Each test is performed by first creating a temporary directory structure as
-specified in the corresponding ``layout`` and by then running
-package detection and checking that the outcome matches the expected
-``results``. The exact details on how to specify both the ``layout`` and the
-``results`` are reported in the table below:
-
-.. list-table:: Test based on PATH inspections
-   :header-rows: 1
-
-   * - Option Name
-     - Description
-     - Allowed Values
-     - Required Field
-   * - ``layout``
-     - Specifies the filesystem tree used for the test
-     - List of objects
-     - Yes
-   * - ``layout:[0]:executables``
-     - Relative paths for the mock executables to be created
-     - List of strings
-     - Yes
-   * - ``layout:[0]:script``
-     - Mock logic for the executable
-     - Any valid shell script
-     - Yes
-   * - ``results``
-     - List of expected results
-     - List of objects (empty if no result is expected)
-     - Yes
-   * - ``results:[0]:spec``
-     - A spec that is expected from detection
-     - Any valid spec
-     - Yes
-
-"""""""""""""""""""""""""""""""
-Reuse tests from other packages
-"""""""""""""""""""""""""""""""
-
-When using a custom repository, it is possible to customize a package that already exists in ``builtin``
-and reuse its external tests. To do so, just write a ``detection_tests.yaml`` alongside the customized
-``package.py`` with an ``includes`` attribute. For instance the ``detection_tests.yaml`` for
-``myrepo.llvm`` might look like:
-
-.. code-block:: yaml
-
-   includes:
-   - "builtin.llvm"
-
-This YAML file instructs Spack to run the detection tests defined in ``builtin.llvm`` in addition to
-those locally defined in the file.
 
 -----------------------------
 Style guidelines for packages

lib/spack/docs/replace_conda_homebrew.rst

@@ -4,7 +4,7 @@
    SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
 =====================================
-Spack for Homebrew/Conda Users
+Using Spack to Replace Homebrew/Conda
 =====================================
 
 Spack is an incredibly powerful package manager, designed for supercomputers
@@ -191,18 +191,18 @@ The ``--fresh`` flag tells Spack to use the latest version of every package
 where possible instead of trying to optimize for reuse of existing installed
 packages.
 
-The ``--force`` flag in addition tells Spack to overwrite its previous
+The ``--force`` flag in addition tells Spack to overwrite its previous 
-concretization decisions, allowing you to choose a new version of Python.
+concretization decisions, allowing you to choose a new version of Python. 
-If any of the new packages like Bash are already installed, ``spack install``
+If any of the new packages like Bash are already installed, ``spack install`` 
 won't re-install them, it will keep the symlinks in place.
 
 -----------------------------------
 Updating & Cleaning Up Old Packages
 -----------------------------------
 
-If you're looking to mimic the behavior of Homebrew, you may also want to
+If you're looking to mimic the behavior of Homebrew, you may also want to 
-clean up out-of-date packages from your environment after an upgrade. To
+clean up out-of-date packages from your environment after an upgrade. To 
-upgrade your entire software stack within an environment and clean up old
+upgrade your entire software stack within an environment and clean up old 
 package versions, simply run the following commands:
 
 .. code-block:: console
@@ -212,9 +212,9 @@ package versions, simply run the following commands:
    $ spack concretize --fresh --force
    $ spack install
    $ spack gc
-
+   
-Running ``spack mark -i --all`` tells Spack to mark all of the existing
+Running ``spack mark -i --all`` tells Spack to mark all of the existing 
-packages within an environment as "implicitly" installed. This tells
+packages within an environment as "implicitly" installed. This tells 
 spack's garbage collection system that these packages should be cleaned up.
 
 Don't worry however, this will not remove your entire environment.
@@ -223,8 +223,8 @@ a fresh concretization and will re-mark any packages that should remain
 installed as "explicitly" installed.
 
 **Note:** if you use multiple spack environments you should re-run ``spack install``
-in each of your environments prior to running ``spack gc`` to prevent spack
+in each of your environments prior to running ``spack gc`` to prevent spack 
-from uninstalling any shared packages that are no longer required by the
+from uninstalling any shared packages that are no longer required by the 
 environment you just upgraded.
 
 --------------

lib/spack/docs/requirements.txt

@@ -1,13 +1,13 @@
-sphinx==7.2.6
+# These dependencies should be installed using pip in order
-sphinxcontrib-programoutput==0.17
+# to build the documentation.
-sphinx_design==0.5.0
+
-sphinx-rtd-theme==1.3.0
+sphinx>=3.4,!=4.1.2,!=5.1.0
-python-levenshtein==0.22.0
+sphinxcontrib-programoutput
-docutils==0.18.1
+sphinx-design
-pygments==2.16.1
+sphinx-rtd-theme
-urllib3==2.0.6
+python-levenshtein
-pytest==7.4.2
+# Restrict to docutils <0.17 to workaround a list rendering issue in sphinx.
-isort==5.12.0
+# https://stackoverflow.com/questions/67542699
-black==23.9.1
+docutils <0.17
-flake8==6.1.0
+pygments <2.13
-mypy==1.5.1
+urllib3 <2

lib/spack/docs/signing.rst

@@ -1,478 +0,0 @@
-.. Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
-   Spack Project Developers. See the top-level COPYRIGHT file for details.
-
-   SPDX-License-Identifier: (Apache-2.0 OR MIT)
-
-.. _signing:
-
-=====================
-Spack Package Signing
-=====================
-
-The goal of package signing in Spack is to provide data integrity
-assurances around official packages produced by the automated Spack CI
-pipelines. These assurances directly address the security of Spack’s
-software supply chain by explaining why a security-conscious user can
-be reasonably justified in the belief that packages installed via Spack
-have an uninterrupted auditable trail back to change management
-decisions judged to be appropriate by the Spack maintainers. This is
-achieved through cryptographic signing of packages built by Spack CI
-pipelines based on code that has been transparently reviewed and
-approved on GitHub. This document describes the signing process for
-interested users.
-
-.. _risks:
-
-------------------------------
-Risks, Impact and Threat Model
-------------------------------
-
-This document addresses the approach taken to safeguard Spack’s
-reputation with regard to the integrity of the package data produced by
-Spack’s CI pipelines. It does not address issues of data confidentiality
-(Spack is intended to be largely open source) or availability (efforts
-are described elsewhere). With that said the main reputational risk can
-be broadly categorized as a loss of faith in the data integrity due to a
-breach of the private key used to sign packages. Remediation of a
-private key breach would require republishing the public key with a
-revocation certificate, generating a new signing key, an assessment and
-potential rebuild/resigning of all packages since the key was breached,
-and finally direct intervention by every spack user to update their copy
-of Spack’s public keys used for local verification.
-
-The primary threat model used in mitigating the risks of these stated
-impacts is one of individual error not malicious intent or insider
-threat. The primary objective is to avoid the above impacts by making a
-private key breach nearly impossible due to oversight or configuration
-error. Obvious and straightforward measures are taken to mitigate issues
-of malicious interference in data integrity and insider threats but
-these attack vectors are not systematically addressed. It should be hard
-to exfiltrate the private key intentionally, and almost impossible to
-leak the key by accident.
-
-.. _overview:
-
------------------
-Pipeline Overview
------------------
-
-Spack pipelines build software through progressive stages where packages
-in later stages nominally depend on packages built in earlier stages.
-For both technical and design reasons these dependencies are not
-implemented through the default GitLab artifacts mechanism; instead
-built packages are uploaded to AWS S3 mirrors (buckets) where they are
-retrieved by subsequent stages in the pipeline. Two broad categories of
-pipelines exist: Pull Request (PR) pipelines and Develop/Release
-pipelines.
-
--  PR pipelines are launched in response to pull requests made by
-   trusted and untrusted users. Packages built on these pipelines upload
-   code to quarantined AWS S3 locations which cache the built packages
-   for the purposes of review and iteration on the changes proposed in
-   the pull request. Packages built on PR pipelines can come from
-   untrusted users so signing of these pipelines is not implemented.
-   Jobs in these pipelines are executed via normal GitLab runners both
-   within the AWS GitLab infrastructure and at affiliated institutions.
--  Develop and Release pipelines **sign** the packages they produce and carry
-   strong integrity assurances that trace back to auditable change management
-   decisions. These pipelines only run after members from a trusted group of
-   reviewers verify that the proposed changes in a pull request are appropriate.
-   Once the PR is merged, or a release is cut, a pipeline is run on protected
-   GitLab runners which provide access to the required signing keys within the
-   job. Intermediary keys are used to sign packages in each stage of the
-   pipeline as they are built and a final job officially signs each package
-   external to any specific packages’ build environment. An intermediate key
-   exists in the AWS infrastructure and for each affiliated instritution that
-   maintains protected runners. The runners that execute these pipelines
-   exclusively accept jobs from protected branches meaning the intermediate keys
-   are never exposed to unreviewed code and the official keys are never exposed
-   to any specific build environment.
-
-.. _key_architecture:
-
-----------------
-Key Architecture
-----------------
-
-Spack’s CI process uses public-key infrastructure (PKI) based on GNU Privacy
-Guard (gpg) keypairs to sign public releases of spack package metadata, also
-called specs. Two classes of GPG keys are involved in the process to reduce the
-impact of an individual private key compromise, these key classes are the
-*Intermediate CI Key* and *Reputational Key*. Each of these keys has signing
-sub-keys that are used exclusively for signing packages. This can be confusing
-so for the purpose of this explanation we’ll refer to Root and Signing keys.
-Each key has a private and a public component as well as one or more identities
-and zero or more signatures.
-
--------------------
-Intermediate CI Key
--------------------
-
-The Intermediate key class is used to sign and verify packages between stages
-within a develop or release pipeline. An intermediate key exists for the AWS
-infrastructure as well as each affiliated institution that maintains protected
-runners. These intermediate keys are made available to the GitLab execution
-environment building the package so that the package’s dependencies may be
-verified by the Signing Intermediate CI Public Key and the final package may be
-signed by the Signing Intermediate CI Private Key.
-
-
-+---------------------------------------------------------------------------------------------------------+
-| **Intermediate CI Key (GPG)**                                                                           |
-+==================================================+======================================================+
-| Root Intermediate CI Private Key (RSA 4096)#     |     Root Intermediate CI Public Key (RSA 4096)       |
-+--------------------------------------------------+------------------------------------------------------+
-|   Signing Intermediate CI Private Key (RSA 4096) |        Signing Intermediate CI Public Key (RSA 4096) |
-+--------------------------------------------------+------------------------------------------------------+
-| Identity: “Intermediate CI Key <maintainers@spack.io>”                                                  |
-+---------------------------------------------------------------------------------------------------------+
-| Signatures: None                                                                                        |
-+---------------------------------------------------------------------------------------------------------+
-
-
-The *Root intermediate CI Private Key*\ Is stripped out of the GPG key and
-stored offline completely separate from Spack’s infrastructure. This allows the
-core development team to append revocation certificates to the GPG key and
-issue new sub-keys for use in the pipeline. It is our expectation that this
-will happen on a semi regular basis. A corollary of this is that *this key
-should not be used to verify package integrity outside the internal CI process.*
-
-----------------
-Reputational Key
-----------------
-
-The Reputational Key is the public facing key used to sign complete groups of
-development and release packages. Only one key pair exsits in this class of
-keys. In contrast to the Intermediate CI Key the Reputational Key *should* be
-used to verify package integrity. At the end of develop and release pipeline a
-final pipeline job pulls down all signed package metadata built by the pipeline,
-verifies they were signed with an Intermediate CI Key, then strips the
-Intermediate CI Key signature from the package and re-signs them with the
-Signing Reputational Private Key. The officially signed packages are then
-uploaded back to the AWS S3 mirror. Please note that separating use of the
-reputational key into this final job is done to prevent leakage of the key in a
-spack package. Because the Signing Reputational Private Key is never exposed to
-a build job it cannot accidentally end up in any built package.
-
-
-+---------------------------------------------------------------------------------------------------------+
-| **Reputational Key (GPG)**                                                                              |
-+==================================================+======================================================+
-| Root Reputational Private Key (RSA 4096)#        |          Root Reputational Public Key (RSA 4096)     |
-+--------------------------------------------------+------------------------------------------------------+
-| Signing Reputational Private Key (RSA 4096)      |          Signing Reputational Public Key (RSA 4096)  |
-+--------------------------------------------------+------------------------------------------------------+
-| Identity: “Spack Project <maintainers@spack.io>”                                                        |
-+---------------------------------------------------------------------------------------------------------+
-| Signatures: Signed by core development team [#f1]_                                                      |
-+---------------------------------------------------------------------------------------------------------+
-
-The Root Reputational Private Key is stripped out of the GPG key and stored
-offline completely separate from Spack’s infrastructure. This allows the core
-development team to append revocation certificates to the GPG key in the
-unlikely event that the Signing Reputation Private Key is compromised. In
-general it is the expectation that rotating this key will happen infrequently if
-at all. This should allow relatively transparent verification for the end-user
-community without needing deep familiarity with GnuPG or Public Key
-Infrastructure.
-
-
-.. _build_cache_format:
-
-------------------
-Build Cache Format
-------------------
-
-A binary package consists of a metadata file unambiguously defining the
-built package (and including other details such as how to relocate it)
-and the installation directory of the package stored as a compressed
-archive file. The metadata files can either be unsigned, in which case
-the contents are simply the json-serialized concrete spec plus metadata,
-or they can be signed, in which case the json-serialized concrete spec
-plus metadata is wrapped in a gpg cleartext signature. Built package
-metadata files are named to indicate the operating system and
-architecture for which the package was built as well as the compiler
-used to build it and the packages name and version. For example::
-
-  linux-ubuntu18.04-haswell-gcc-7.5.0-zlib-1.2.12-llv2ysfdxnppzjrt5ldybb5c52qbmoow.spec.json.sig
-
-would contain the concrete spec and binary metadata for a binary package
-of ``zlib@1.2.12``, built for the ``ubuntu`` operating system and ``haswell``
-architecture. The id of the built package exists in the name of the file
-as well (after the package name and version) and in this case begins
-with ``llv2ys``. The id distinguishes a particular built package from all
-other built packages with the same os/arch, compiler, name, and version.
-Below is an example of a signed binary package metadata file. Such a
-file would live in the ``build_cache`` directory of a binary mirror::
-
-  -----BEGIN PGP SIGNED MESSAGE-----
-  Hash: SHA512
-
-  {
-    "spec": {
-      <concrete-spec-contents-omitted>
-    },
-
-    "buildcache_layout_version": 1,
-    "binary_cache_checksum": {
-      "hash_algorithm": "sha256",
-      "hash": "4f1e46452c35a5e61bcacca205bae1bfcd60a83a399af201a29c95b7cc3e1423"
-     }
-  }
-
-  -----BEGIN PGP SIGNATURE-----
-  iQGzBAEBCgAdFiEETZn0sLle8jIrdAPLx/P+voVcifMFAmKAGvwACgkQx/P+voVc
-  ifNoVgv/VrhA+wurVs5GB9PhmMA1m5U/AfXZb4BElDRwpT8ZcTPIv5X8xtv60eyn
-  4EOneGVbZoMThVxgev/NKARorGmhFXRqhWf+jknJZ1dicpqn/qpv34rELKUpgXU+
-  QDQ4d1P64AIdTczXe2GI9ZvhOo6+bPvK7LIsTkBbtWmopkomVxF0LcMuxAVIbA6b
-  887yBvVO0VGlqRnkDW7nXx49r3AG2+wDcoU1f8ep8QtjOcMNaPTPJ0UnjD0VQGW6
-  4ZFaGZWzdo45MY6tF3o5mqM7zJkVobpoW3iUz6J5tjz7H/nMlGgMkUwY9Kxp2PVH
-  qoj6Zip3LWplnl2OZyAY+vflPFdFh12Xpk4FG7Sxm/ux0r+l8tCAPvtw+G38a5P7
-  QEk2JBr8qMGKASmnRlJUkm1vwz0a95IF3S9YDfTAA2vz6HH3PtsNLFhtorfx8eBi
-  Wn5aPJAGEPOawEOvXGGbsH4cDEKPeN0n6cy1k92uPEmBLDVsdnur8q42jk5c2Qyx
-  j3DXty57
-  =3gvm
-  -----END PGP SIGNATURE-----
-
-If a user has trusted the public key associated with the private key
-used to sign the above spec file, the signature can be verified with
-gpg, as follows::
-
-  $ gpg –verify linux-ubuntu18.04-haswell-gcc-7.5.0-zlib-1.2.12-llv2ysfdxnppzjrt5ldybb5c52qbmoow.spec.json.sig
-
-The metadata (regardless whether signed or unsigned) contains the checksum
-of the ``.spack`` file containing the actual installation. The checksum should
-be compared to a checksum computed locally on the ``.spack`` file to ensure the
-contents have not changed since the binary spec plus metadata were signed. The
-``.spack`` files are actually tarballs containing the compressed archive of the
-install tree.  These files, along with the metadata files, live within the
-``build_cache`` directory of the mirror, and together are organized as follows::
-
-  build_cache/
-    # unsigned metadata (for indexing, contains sha256 of .spack file)
-    <arch>-<compiler>-<name>-<ver>-24zvipcqgg2wyjpvdq2ajy5jnm564hen.spec.json
-    # clearsigned metadata (same as above, but signed)
-    <arch>-<compiler>-<name>-<ver>-24zvipcqgg2wyjpvdq2ajy5jnm564hen.spec.json.sig
-    <arch>/
-      <compiler>/
-        <name>-<ver>/
-          # tar.gz-compressed prefix (may support more compression formats later)
-          <arch>-<compiler>-<name>-<ver>-24zvipcqgg2wyjpvdq2ajy5jnm564hen.spack
-
-Uncompressing and extracting the ``.spack`` file results in the install tree.
-This is in contrast to previous versions of spack, where the ``.spack`` file
-contained a (duplicated) metadata file, a signature file and a nested tarball
-containing the install tree.
-
-.. _internal_implementation:
-
------------------------
-Internal Implementation
------------------------
-
-The technical implementation of the pipeline signing process includes components
-defined in Amazon Web Services, the Kubernetes cluster, at affilicated
-institutions, and the GitLab/GitLab Runner deployment. We present the techincal
-implementation in two interdependent sections. The first addresses how secrets
-are managed through the lifecycle of a develop or release pipeline. The second
-section describes how Gitlab Runner and pipelines are configured and managed to
-support secure automated signing.
-
-Secrets Management
-^^^^^^^^^^^^^^^^^^
-
-As stated above the Root Private Keys (intermediate and reputational)
-are stripped from the GPG keys and stored outside Spack’s
-infrastructure.
-
-.. warning::
-  **TODO**
-    - Explanation here about where and how access is handled for these keys.
-    - Both Root private keys are protected with strong passwords
-    - Who has access to these and how?
-
-**Intermediate CI Key**
------------------------
-
-Multiple intermediate CI signing keys exist, one Intermediate CI Key for jobs
-run in AWS, and one key for each affiliated institution (e.g. Univerity of
-Oregon). Here we describe how the Intermediate CI Key is managed in AWS:
-
-The Intermediate CI Key (including the Signing Intermediate CI Private Key is
-exported as an ASCII armored file and stored in a Kubernetes secret called
-``spack-intermediate-ci-signing-key``. For convenience sake, this same secret
-contains an ASCII-armored export of just the *public* components of the
-Reputational Key. This secret also contains the *public* components of each of
-the affiliated institutions' Intermediate CI Key. These are potentially needed
-to verify dependent packages which may have been found in the public mirror or
-built by a protected job running on an affiliated institution's infrastrcuture
-in an earlier stage of the pipeline.
-
-Procedurally the ``spack-intermediate-ci-signing-key`` secret is used in
-the following way:
-
-1. A ``large-arm-prot`` or ``large-x86-prot`` protected runner picks up
-   a job tagged ``protected`` from a protected GitLab branch. (See
-   `Protected Runners and Reserved Tags <#_8bawjmgykv0b>`__).
-2. Based on its configuration, the runner creates a job Pod in the
-   pipeline namespace and mounts the spack-intermediate-ci-signing-key
-   Kubernetes secret into the build container
-3. The Intermediate CI Key, affiliated institutions' public key and the
-   Reputational Public Key are imported into a keyring by the ``spack gpg …``
-   sub-command. This is initiated by the job’s build script which is created by
-   the generate job at the beginning of the pipeline.
-4. Assuming the package has dependencies those specs are verified using
-   the keyring.
-5. The package is built and the spec.json is generated
-6. The spec.json is signed by the keyring and uploaded to the mirror’s
-   build cache.
-
-**Reputational Key**
---------------------
-
-Because of the increased impact to end users in the case of a private
-key breach, the Reputational Key is managed separately from the
-Intermediate CI Keys and has additional controls. First, the Reputational
-Key was generated outside of Spack’s infrastructure and has been signed
-by the core development team. The Reputational Key (along with the
-Signing Reputational Private Key) was then ASCII armor exported to a
-file. Unlike the Intermediate CI Key this exported file is not stored as
-a base64 encoded secret in Kubernetes. Instead\ *the key file
-itself*\ is encrypted and stored in Kubernetes as the
-``spack-signing-key-encrypted`` secret in the pipeline namespace.
-
-The encryption of the exported Reputational Key (including the Signing
-Reputational Private Key) is handled by `AWS Key Management Store (KMS) data
-keys
-<https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#data-keys>`__.
-The private key material is decrypted and imported at the time of signing into a
-memory mounted temporary directory holding the keychain. The signing job uses
-the `AWS Encryption SDK
-<https://docs.aws.amazon.com/encryption-sdk/latest/developer-guide/crypto-cli.html>`__
-(i.e. ``aws-encryption-cli``) to decrypt the Reputational Key. Permission to
-decrypt the key is granted to the job Pod through a Kubernetes service account
-specifically used for this, and only this, function. Finally, for convenience
-sake, this same secret contains an ASCII-armored export of the *public*
-components of the Intermediate CI Keys and the Reputational Key. This allows the
-signing script to verify that packages were built by the pipeline (both on AWS
-or at affiliated institutions), or signed previously as a part of a different
-pipeline. This is is done *before* importing decrypting and importing the
-Signing Reputational Private Key material and officially signing the packages.
-
-Procedurally the ``spack-singing-key-encrypted`` secret is used in the
-following way:
-
-1.  The ``spack-package-signing-gitlab-runner`` protected runner picks
-    up a job tagged ``notary`` from a protected GitLab branch (See
-    `Protected Runners and Reserved Tags <#_8bawjmgykv0b>`__).
-2.  Based on its configuration, the runner creates a job pod in the
-    pipeline namespace. The job is run in a stripped down purpose-built
-    image ``ghcr.io/spack/notary:latest`` Docker image. The runner is
-    configured to only allow running jobs with this image.
-3.  The runner also mounts the ``spack-signing-key-encrypted`` secret to
-    a path on disk. Note that this becomes several files on disk, the
-    public components of the Intermediate CI Keys, the public components
-    of the Reputational CI, and an AWS KMS encrypted file containing the
-    Singing Reputational Private Key.
-4.  In addition to the secret, the runner creates a tmpfs memory mounted
-    directory where the GnuPG keyring will be created to verify, and
-    then resign the package specs.
-5.  The job script syncs all spec.json.sig files from the build cache to
-    a working directory in the job’s execution environment.
-6.  The job script then runs the ``sign.sh`` script built into the
-    notary Docker image.
-7.  The ``sign.sh`` script imports the public components of the
-    Reputational and Intermediate CI Keys and uses them to verify good
-    signatures on the spec.json.sig files. If any signed spec does not
-    verify the job immediately fails.
-8.  Assuming all specs are verified, the ``sign.sh`` script then unpacks
-    the spec json data from the signed file in preparation for being
-    re-signed with the Reputational Key.
-9.  The private components of the Reputational Key are decrypted to
-    standard out using ``aws-encryption-cli`` directly into a ``gpg
-    –import …`` statement which imports the key into the
-    keyring mounted in-memory.
-10. The private key is then used to sign each of the json specs and the
-    keyring is removed from disk.
-11. The re-signed json specs are resynced to the AWS S3 Mirror and the
-    public signing of the packages for the develop or release pipeline
-    that created them is complete.
-
-Non service-account access to the private components of the Reputational
-Key that are managed through access to the symmetric secret in KMS used
-to encrypt the data key (which in turn is used to encrypt the GnuPG key
-- See:\ `Encryption SDK
-Documentation <https://docs.aws.amazon.com/encryption-sdk/latest/developer-guide/crypto-cli-examples.html#cli-example-encrypt-file>`__).
-A small trusted subset of the core development team are the only
-individuals with access to this symmetric key.
-
-.. _protected_runners:
-
-Protected Runners and Reserved Tags
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-Spack has a large number of Gitlab Runners operating in its build farm.
-These include runners deployed in the AWS Kubernetes cluster as well as
-runners deployed at affiliated institutions. The majority of runners are
-shared runners that operate across projects in gitlab.spack.io. These
-runners pick up jobs primarily from the spack/spack project and execute
-them in PR pipelines.
-
-A small number of runners operating on AWS and at affiliated institutions are
-registered as specific *protected* runners on the spack/spack project. In
-addition to protected runners there are protected branches on the spack/spack
-project. These are the ``develop`` branch, any release branch (i.e. managed with
-the ``releases/v*`` wildcard) and any tag branch (managed with the ``v*``
-wildcard) Finally Spack’s pipeline generation code reserves certain tags to make
-sure jobs are routed to the correct runners, these tags are ``public``,
-``protected``, and ``notary``. Understanding how all this works together to
-protect secrets and provide integrity assurances can be a little confusing so
-lets break these down:
-
--  **Protected Branches**- Protected branches in Spack prevent anyone
-   other than Maintainers in GitLab from pushing code. In the case of
-   Spack the only Maintainer level entity pushing code to protected
-   branches is Spack bot. Protecting branches also marks them in such a
-   way that Protected Runners will only run jobs from those branches
-- **Protected Runners**- Protected Runners only run jobs from protected
-   branches. Because protected runners have access to secrets, it's critical
-   that they not run Jobs from untrusted code (i.e. PR branches). If they did it
-   would be possible for a PR branch to tag a job in such a way that a protected
-   runner executed that job and mounted secrets into a code execution
-   environment that had not been reviewed by Spack maintainers. Note however
-   that in the absence of tagging used to route jobs, public runners *could* run
-   jobs from protected branches. No secrets would be at risk of being breached
-   because non-protected runners do not have access to those secrets; lack of
-   secrets would, however, cause the jobs to fail.
-- **Reserved Tags**- To mitigate the issue of public runners picking up
-   protected jobs Spack uses a small set of “reserved” job tags (Note that these
-   are *job* tags not git tags). These tags are “public”, “private”, and
-   “notary.” The majority of jobs executed in Spack’s GitLab instance are
-   executed via a ``generate`` job. The generate job code systematically ensures
-   that no user defined configuration sets these tags. Instead, the ``generate``
-   job sets these tags based on rules related to the branch where this pipeline
-   originated. If the job is a part of a pipeline on a PR branch it sets the
-   ``public`` tag. If the job is part of a pipeline on a protected branch it
-   sets the ``protected`` tag. Finally if the job is the package signing job and
-   it is running on a pipeline that is part of a protected branch then it sets
-   the ``notary`` tag.
-
-Protected Runners are configured to only run jobs from protected branches. Only
-jobs running in pipelines on protected branches are tagged with ``protected`` or
-``notary`` tags. This tightly couples jobs on protected branches to protected
-runners that provide access to the secrets required to sign the built packages.
-The secrets are can **only** be accessed via:
-
-1. Runners under direct control of the core development team.
-2. Runners under direct control of trusted maintainers at affiliated institutions.
-3. By code running the automated pipeline that has been reviewed by the
-   Spack maintainers and judged to be appropriate.
-
-Other attempts (either through malicious intent or incompetence) can at
-worst grab jobs intended for protected runners which will cause those
-jobs to fail alerting both Spack maintainers and the core development
-team.
-
-.. [#f1]
-   The Reputational Key has also cross signed core development team
-   keys.

lib/spack/docs/tables/system_prerequisites.csv

@@ -1,8 +1,9 @@
 Name, Supported Versions, Notes, Requirement Reason
-Python, 3.6--3.12, , Interpreter for Spack
+Python, 3.6--3.11, , Interpreter for Spack
 C/C++ Compilers, , , Building software
 make, , , Build software
 patch, , , Build software
+bash, , , Compiler wrappers
 tar, , , Extract/create archives
 gzip, , , Compress/Decompress archives
 unzip, , , Compress/Decompress archives

lib/spack/env/cc

@@ -416,14 +416,30 @@ input_command="$*"
 # The lists are all bell-separated to be as flexible as possible, as their
 # contents may come from the command line, from ' '-separated lists,
 # ':'-separated lists, etc.
+include_dirs_list=""
+lib_dirs_list=""
+rpath_dirs_list=""
+system_include_dirs_list=""
+system_lib_dirs_list=""
+system_rpath_dirs_list=""
+isystem_system_include_dirs_list=""
+isystem_include_dirs_list=""
+libs_list=""
+other_args_list=""
+
+# Global state for keeping track of -Wl,-rpath -Wl,/path
+wl_expect_rpath=no
+
+# Same, but for -Xlinker -rpath -Xlinker /path
+xlinker_expect_rpath=no
 
 parse_Wl() {
     while [ $# -ne 0 ]; do
     if [ "$wl_expect_rpath" = yes ]; then
         if system_dir "$1"; then
-            append return_system_rpath_dirs_list "$1"
+            append system_rpath_dirs_list "$1"
         else
-            append return_rpath_dirs_list "$1"
+            append rpath_dirs_list "$1"
         fi
         wl_expect_rpath=no
     else
@@ -433,9 +449,9 @@ parse_Wl() {
                 if [ -z "$arg" ]; then
                     shift; continue
                 elif system_dir "$arg"; then
-                    append return_system_rpath_dirs_list "$arg"
+                    append system_rpath_dirs_list "$arg"
                 else
-                    append return_rpath_dirs_list "$arg"
+                    append rpath_dirs_list "$arg"
                 fi
                 ;;
             --rpath=*)
@@ -443,9 +459,9 @@ parse_Wl() {
                 if [ -z "$arg" ]; then
                     shift; continue
                 elif system_dir "$arg"; then
-                    append return_system_rpath_dirs_list "$arg"
+                    append system_rpath_dirs_list "$arg"
                 else
-                    append return_rpath_dirs_list "$arg"
+                    append rpath_dirs_list "$arg"
                 fi
                 ;;
             -rpath|--rpath)
@@ -459,7 +475,7 @@ parse_Wl() {
                 return 1
                 ;;
             *)
-                append return_other_args_list "-Wl,$1"
+                append other_args_list "-Wl,$1"
                 ;;
         esac
     fi
@@ -467,210 +483,177 @@ parse_Wl() {
     done
 }
 
-categorize_arguments() {
 
-    unset IFS
+while [ $# -ne 0 ]; do
 
-    return_other_args_list=""
+    # an RPATH to be added after the case statement.
-    return_isystem_was_used=""
+    rp=""
-    return_isystem_system_include_dirs_list=""
-    return_isystem_include_dirs_list=""
-    return_system_include_dirs_list=""
-    return_include_dirs_list=""
-    return_system_lib_dirs_list=""
-    return_lib_dirs_list=""
-    return_system_rpath_dirs_list=""
-    return_rpath_dirs_list=""
 
-    # Global state for keeping track of -Wl,-rpath -Wl,/path
+    # Multiple consecutive spaces in the command line can
-    wl_expect_rpath=no
+    # result in blank arguments
+    if [ -z "$1" ]; then
+        shift
+        continue
+    fi
 
-    # Same, but for -Xlinker -rpath -Xlinker /path
+    if [ -n "${SPACK_COMPILER_FLAGS_KEEP}" ] ; then
-    xlinker_expect_rpath=no
+        # NOTE: the eval is required to allow `|` alternatives inside the variable
-
+        eval "\
-    while [ $# -ne 0 ]; do
+        case \"\$1\" in
-
+            $SPACK_COMPILER_FLAGS_KEEP)
-        # an RPATH to be added after the case statement.
+                append other_args_list \"\$1\"
-        rp=""
-
-        # Multiple consecutive spaces in the command line can
-        # result in blank arguments
-        if [ -z "$1" ]; then
-            shift
-            continue
-        fi
-
-        if [ -n "${SPACK_COMPILER_FLAGS_KEEP}" ] ; then
-            # NOTE: the eval is required to allow `|` alternatives inside the variable
-            eval "\
-            case \"\$1\" in
-                $SPACK_COMPILER_FLAGS_KEEP)
-                    append return_other_args_list \"\$1\"
-                    shift
-                    continue
-                    ;;
-            esac
-            "
-        fi
-        # the replace list is a space-separated list of pipe-separated pairs,
-        # the first in each pair is the original prefix to be matched, the
-        # second is the replacement prefix
-        if [ -n "${SPACK_COMPILER_FLAGS_REPLACE}" ] ; then
-            for rep in ${SPACK_COMPILER_FLAGS_REPLACE} ; do
-                before=${rep%|*}
-                after=${rep#*|}
-                eval "\
-                stripped=\"\${1##$before}\"
-                "
-                if [ "$stripped" = "$1" ] ; then
-                    continue
-                fi
-
-                replaced="$after$stripped" 
-
-                # it matched, remove it
                 shift
-
+                continue
-                if [ -z "$replaced" ] ; then
-                    # completely removed, continue OUTER loop
-                    continue 2
-                fi
-
-                # re-build argument list with replacement
-                set -- "$replaced" "$@"
-            done
-        fi
-
-        case "$1" in
-            -isystem*)
-                arg="${1#-isystem}"
-                return_isystem_was_used=true
-                if [ -z "$arg" ]; then shift; arg="$1"; fi
-                if system_dir "$arg"; then
-                    append return_isystem_system_include_dirs_list "$arg"
-                else
-                    append return_isystem_include_dirs_list "$arg"
-                fi
-                ;;
-            -I*)
-                arg="${1#-I}"
-                if [ -z "$arg" ]; then shift; arg="$1"; fi
-                if system_dir "$arg"; then
-                    append return_system_include_dirs_list "$arg"
-                else
-                    append return_include_dirs_list "$arg"
-                fi
-                ;;
-            -L*)
-                arg="${1#-L}"
-                if [ -z "$arg" ]; then shift; arg="$1"; fi
-                if system_dir "$arg"; then
-                    append return_system_lib_dirs_list "$arg"
-                else
-                    append return_lib_dirs_list "$arg"
-                fi
-                ;;
-            -l*)
-                # -loopopt=0 is generated erroneously in autoconf <= 2.69,
-                # and passed by ifx to the linker, which confuses it with a
-                # library. Filter it out.
-                # TODO: generalize filtering of args with an env var, so that
-                # TODO: we do not have to special case this here.
-                if { [ "$mode" = "ccld" ] || [ $mode = "ld" ]; } \
-                    && [ "$1" != "${1#-loopopt}" ]; then
-                    shift
-                    continue
-                fi
-                arg="${1#-l}"
-                if [ -z "$arg" ]; then shift; arg="$1"; fi
-                append return_other_args_list "-l$arg"
-                ;;
-            -Wl,*)
-                IFS=,
-                if ! parse_Wl ${1#-Wl,}; then
-                    append return_other_args_list "$1"
-                fi
-                unset IFS
-                ;;
-            -Xlinker)
-                shift
-                if [ $# -eq 0 ]; then
-                    # -Xlinker without value: let the compiler error about it.
-                    append return_other_args_list -Xlinker
-                    xlinker_expect_rpath=no
-                    break
-                elif [ "$xlinker_expect_rpath" = yes ]; then
-                    # Register the path of -Xlinker -rpath <other args> -Xlinker <path>
-                    if system_dir "$1"; then
-                        append return_system_rpath_dirs_list "$1"
-                    else
-                        append return_rpath_dirs_list "$1"
-                    fi
-                    xlinker_expect_rpath=no
-                else
-                    case "$1" in
-                        -rpath=*)
-                            arg="${1#-rpath=}"
-                            if system_dir "$arg"; then
-                                append return_system_rpath_dirs_list "$arg"
-                            else
-                                append return_rpath_dirs_list "$arg"
-                            fi
-                            ;;
-                        --rpath=*)
-                            arg="${1#--rpath=}"
-                            if system_dir "$arg"; then
-                                append return_system_rpath_dirs_list "$arg"
-                            else
-                                append return_rpath_dirs_list "$arg"
-                            fi
-                            ;;
-                        -rpath|--rpath)
-                            xlinker_expect_rpath=yes
-                            ;;
-                        "$dtags_to_strip")
-                            ;;
-                        *)
-                            append return_other_args_list -Xlinker
-                            append return_other_args_list "$1"
-                            ;;
-                    esac
-                fi
-                ;;
-            "$dtags_to_strip")
-                ;;
-            *)
-                append return_other_args_list "$1"
                 ;;
         esac
-        shift
+        "
-    done
+    fi
+    # the replace list is a space-separated list of pipe-separated pairs,
+    # the first in each pair is the original prefix to be matched, the
+    # second is the replacement prefix
+    if [ -n "${SPACK_COMPILER_FLAGS_REPLACE}" ] ; then
+        for rep in ${SPACK_COMPILER_FLAGS_REPLACE} ; do
+            before=${rep%|*}
+            after=${rep#*|}
+            eval "\
+            stripped=\"\${1##$before}\"
+            "
+            if [ "$stripped" = "$1" ] ; then
+                continue
+            fi
 
-    # We found `-Xlinker -rpath` but no matching value `-Xlinker /path`. Just append
+            replaced="$after$stripped" 
-    # `-Xlinker -rpath` again and let the compiler or linker handle the error during arg
+
-    # parsing.
+            # it matched, remove it
-    if [ "$xlinker_expect_rpath" = yes ]; then
+            shift
-        append return_other_args_list -Xlinker
+
-        append return_other_args_list -rpath
+            if [ -z "$replaced" ] ; then
+                # completely removed, continue OUTER loop
+                continue 2
+            fi
+
+            # re-build argument list with replacement
+            set -- "$replaced" "$@"
+        done
     fi
 
-    # Same, but for -Wl flags.
+    case "$1" in
-    if [ "$wl_expect_rpath" = yes ]; then
+        -isystem*)
-        append return_other_args_list -Wl,-rpath
+            arg="${1#-isystem}"
-    fi
+            isystem_was_used=true
-}
+            if [ -z "$arg" ]; then shift; arg="$1"; fi
+            if system_dir "$arg"; then
+                append isystem_system_include_dirs_list "$arg"
+            else
+                append isystem_include_dirs_list "$arg"
+            fi
+            ;;
+        -I*)
+            arg="${1#-I}"
+            if [ -z "$arg" ]; then shift; arg="$1"; fi
+            if system_dir "$arg"; then
+                append system_include_dirs_list "$arg"
+            else
+                append include_dirs_list "$arg"
+            fi
+            ;;
+        -L*)
+            arg="${1#-L}"
+            if [ -z "$arg" ]; then shift; arg="$1"; fi
+            if system_dir "$arg"; then
+                append system_lib_dirs_list "$arg"
+            else
+                append lib_dirs_list "$arg"
+            fi
+            ;;
+        -l*)
+            # -loopopt=0 is generated erroneously in autoconf <= 2.69,
+            # and passed by ifx to the linker, which confuses it with a
+            # library. Filter it out.
+            # TODO: generalize filtering of args with an env var, so that
+            # TODO: we do not have to special case this here.
+            if { [ "$mode" = "ccld" ] || [ $mode = "ld" ]; } \
+                && [ "$1" != "${1#-loopopt}" ]; then
+                shift
+                continue
+            fi
+            arg="${1#-l}"
+            if [ -z "$arg" ]; then shift; arg="$1"; fi
+            append other_args_list "-l$arg"
+            ;;
+        -Wl,*)
+            IFS=,
+            if ! parse_Wl ${1#-Wl,}; then
+                append other_args_list "$1"
+            fi
+            unset IFS
+            ;;
+        -Xlinker)
+            shift
+            if [ $# -eq 0 ]; then
+                # -Xlinker without value: let the compiler error about it.
+                append other_args_list -Xlinker
+                xlinker_expect_rpath=no
+                break
+            elif [ "$xlinker_expect_rpath" = yes ]; then
+                # Register the path of -Xlinker -rpath <other args> -Xlinker <path>
+                if system_dir "$1"; then
+                    append system_rpath_dirs_list "$1"
+                else
+                    append rpath_dirs_list "$1"
+                fi
+                xlinker_expect_rpath=no
+            else
+                case "$1" in
+                    -rpath=*)
+                        arg="${1#-rpath=}"
+                        if system_dir "$arg"; then
+                            append system_rpath_dirs_list "$arg"
+                        else
+                            append rpath_dirs_list "$arg"
+                        fi
+                        ;;
+                    --rpath=*)
+                        arg="${1#--rpath=}"
+                        if system_dir "$arg"; then
+                            append system_rpath_dirs_list "$arg"
+                        else
+                            append rpath_dirs_list "$arg"
+                        fi
+                        ;;
+                    -rpath|--rpath)
+                        xlinker_expect_rpath=yes
+                        ;;
+                    "$dtags_to_strip")
+                        ;;
+                    *)
+                        append other_args_list -Xlinker
+                        append other_args_list "$1"
+                        ;;
+                esac
+            fi
+            ;;
+        "$dtags_to_strip")
+            ;;
+        *)
+            append other_args_list "$1"
+            ;;
+    esac
+    shift
+done
 
-categorize_arguments "$@"
+# We found `-Xlinker -rpath` but no matching value `-Xlinker /path`. Just append
-    include_dirs_list="$return_include_dirs_list"
+# `-Xlinker -rpath` again and let the compiler or linker handle the error during arg
-    lib_dirs_list="$return_lib_dirs_list"
+# parsing.
-    rpath_dirs_list="$return_rpath_dirs_list"
+if [ "$xlinker_expect_rpath" = yes ]; then
-    system_include_dirs_list="$return_system_include_dirs_list"
+    append other_args_list -Xlinker
-    system_lib_dirs_list="$return_system_lib_dirs_list"
+    append other_args_list -rpath
-    system_rpath_dirs_list="$return_system_rpath_dirs_list"
+fi
-    isystem_was_used="$return_isystem_was_used"
+
-    isystem_system_include_dirs_list="$return_isystem_system_include_dirs_list"
+# Same, but for -Wl flags.
-    isystem_include_dirs_list="$return_isystem_include_dirs_list"
+if [ "$wl_expect_rpath" = yes ]; then
-    other_args_list="$return_other_args_list"
+    append other_args_list -Wl,-rpath
+fi
 
 #
 # Add flags from Spack's cppflags, cflags, cxxflags, fcflags, fflags, and
@@ -690,14 +673,12 @@ elif [ "$SPACK_ADD_DEBUG_FLAGS" = "custom" ]; then
     extend flags_list SPACK_DEBUG_FLAGS
 fi
 
-spack_flags_list=""
-
 # Fortran flags come before CPPFLAGS
 case "$mode" in
     cc|ccld)
         case $lang_flags in
             F)
-                extend spack_flags_list SPACK_FFLAGS
+                extend flags_list SPACK_FFLAGS
                 ;;
         esac
         ;;
@@ -706,7 +687,7 @@ esac
 # C preprocessor flags come before any C/CXX flags
 case "$mode" in
     cpp|as|cc|ccld)
-        extend spack_flags_list SPACK_CPPFLAGS
+        extend flags_list SPACK_CPPFLAGS
         ;;
 esac
 
@@ -716,10 +697,10 @@ case "$mode" in
     cc|ccld)
         case $lang_flags in
             C)
-                extend spack_flags_list SPACK_CFLAGS
+                extend flags_list SPACK_CFLAGS
                 ;;
             CXX)
-                extend spack_flags_list SPACK_CXXFLAGS
+                extend flags_list SPACK_CXXFLAGS
                 ;;
         esac
 
@@ -731,25 +712,10 @@ esac
 # Linker flags
 case "$mode" in
     ld|ccld)
-        extend spack_flags_list SPACK_LDFLAGS
+        extend flags_list SPACK_LDFLAGS
         ;;
 esac
 
-IFS="$lsep"
-    categorize_arguments $spack_flags_list
-unset IFS
-        spack_flags_include_dirs_list="$return_include_dirs_list"
-        spack_flags_lib_dirs_list="$return_lib_dirs_list"
-        spack_flags_rpath_dirs_list="$return_rpath_dirs_list"
-        spack_flags_system_include_dirs_list="$return_system_include_dirs_list"
-        spack_flags_system_lib_dirs_list="$return_system_lib_dirs_list"
-        spack_flags_system_rpath_dirs_list="$return_system_rpath_dirs_list"
-        spack_flags_isystem_was_used="$return_isystem_was_used"
-        spack_flags_isystem_system_include_dirs_list="$return_isystem_system_include_dirs_list"
-        spack_flags_isystem_include_dirs_list="$return_isystem_include_dirs_list"
-        spack_flags_other_args_list="$return_other_args_list"
-
-
 # On macOS insert headerpad_max_install_names linker flag
 if [ "$mode" = ld ] || [ "$mode" = ccld ]; then
     if [ "${SPACK_SHORT_SPEC#*darwin}" != "${SPACK_SHORT_SPEC}" ]; then
@@ -775,8 +741,6 @@ if [ "$mode" = ccld ] || [ "$mode" = ld ]; then
     extend lib_dirs_list SPACK_LINK_DIRS
 fi
 
-libs_list=""
-
 # add RPATHs if we're in in any linking mode
 case "$mode" in
     ld|ccld)
@@ -805,16 +769,12 @@ args_list="$flags_list"
 
 # Insert include directories just prior to any system include directories
 # NOTE: adding ${lsep} to the prefix here turns every added element into two
-extend args_list spack_flags_include_dirs_list "-I"
 extend args_list include_dirs_list "-I"
-extend args_list spack_flags_isystem_include_dirs_list "-isystem${lsep}"
 extend args_list isystem_include_dirs_list "-isystem${lsep}"
 
 case "$mode" in
     cpp|cc|as|ccld)
-        if [ "$spack_flags_isystem_was_used" = "true" ]; then
+        if [ "$isystem_was_used" = "true" ]; then
-            extend args_list SPACK_INCLUDE_DIRS "-isystem${lsep}"
-        elif [ "$isystem_was_used" = "true" ]; then
             extend args_list SPACK_INCLUDE_DIRS "-isystem${lsep}"
         else
             extend args_list SPACK_INCLUDE_DIRS "-I"
@@ -822,15 +782,11 @@ case "$mode" in
         ;;
 esac
 
-extend args_list spack_flags_system_include_dirs_list -I
 extend args_list system_include_dirs_list -I
-extend args_list spack_flags_isystem_system_include_dirs_list "-isystem${lsep}"
 extend args_list isystem_system_include_dirs_list "-isystem${lsep}"
 
 # Library search paths
-extend args_list spack_flags_lib_dirs_list "-L"
 extend args_list lib_dirs_list "-L"
-extend args_list spack_flags_system_lib_dirs_list "-L"
 extend args_list system_lib_dirs_list "-L"
 
 # RPATHs arguments
@@ -839,25 +795,20 @@ case "$mode" in
         if [ -n "$dtags_to_add" ] ; then
             append args_list "$linker_arg$dtags_to_add"
         fi
-        extend args_list spack_flags_rpath_dirs_list "$rpath"
         extend args_list rpath_dirs_list "$rpath"
-        extend args_list spack_flags_system_rpath_dirs_list "$rpath"
         extend args_list system_rpath_dirs_list "$rpath"
         ;;
     ld)
         if [ -n "$dtags_to_add" ] ; then
             append args_list "$dtags_to_add"
         fi
-        extend args_list spack_flags_rpath_dirs_list "-rpath${lsep}"
         extend args_list rpath_dirs_list "-rpath${lsep}"
-        extend args_list spack_flags_system_rpath_dirs_list "-rpath${lsep}"
         extend args_list system_rpath_dirs_list "-rpath${lsep}"
         ;;
 esac
 
 # Other arguments from the input command
 extend args_list other_args_list
-extend args_list spack_flags_other_args_list
 
 # Inject SPACK_LDLIBS, if supplied
 extend args_list libs_list "-l"
@@ -913,4 +864,3 @@ fi
 # Execute the full command, preserving spaces with IFS set
 # to the alarm bell separator.
 IFS="$lsep"; exec $full_command_list
-

lib/spack/external/__init__.py

@@ -18,7 +18,7 @@
 
 * Homepage: https://pypi.python.org/pypi/archspec
 * Usage: Labeling, comparison and detection of microarchitectures
-* Version: 0.2.1 (commit df43a1834460bf94516136951c4729a3100603ec)
+* Version: 0.2.1 (commit 9e1117bd8a2f0581bced161f2a2e8d6294d0300b)
 
 astunparse
 ----------------

lib/spack/external/archspec/__init__.py

@@ -1,2 +1,2 @@
 """Init file to avoid namespace packages"""
-__version__ = "0.2.1"
+__version__ = "0.2.0"

lib/spack/external/archspec/cpu/microarchitecture.py

@@ -79,18 +79,14 @@ def __init__(self, name, parents, vendor, features, compilers, generation=0):
         self.features = features
         self.compilers = compilers
         self.generation = generation
-        # Cache the ancestor computation
-        self._ancestors = None
 
     @property
     def ancestors(self):
         """All the ancestors of this microarchitecture."""
-        if self._ancestors is None:
+        value = self.parents[:]
-            value = self.parents[:]
+        for parent in self.parents:
-            for parent in self.parents:
+            value.extend(a for a in parent.ancestors if a not in value)
-                value.extend(a for a in parent.ancestors if a not in value)
+        return value
-            self._ancestors = value
-        return self._ancestors
 
     def _to_set(self):
         """Returns a set of the nodes in this microarchitecture DAG."""

lib/spack/external/archspec/json/cpu/microarchitectures.json

@@ -145,13 +145,6 @@
             "flags": "-march={name} -mtune=generic -mcx16 -msahf -mpopcnt -msse3 -msse4.1 -msse4.2 -mssse3"
           }
         ],
-        "intel": [
-          {
-            "versions": "16.0:",
-            "name": "corei7",
-            "flags": "-march={name} -mtune=generic -mpopcnt"
-          }
-        ],
         "oneapi": [
           {
             "versions": "2021.2.0:",
@@ -224,13 +217,6 @@
             "flags": "-march={name} -mtune=generic -mcx16 -msahf -mpopcnt -msse3 -msse4.1 -msse4.2 -mssse3 -mavx -mavx2 -mbmi -mbmi2 -mf16c -mfma -mlzcnt -mmovbe -mxsave"
           }
         ],
-        "intel": [
-          {
-            "versions": "16.0:",
-            "name": "core-avx2",
-            "flags": "-march={name} -mtune={name} -fma -mf16c"
-          }
-        ],
         "oneapi": [
           {
             "versions": "2021.2.0:",
@@ -314,13 +300,6 @@
             "flags": "-march={name} -mtune=generic -mcx16 -msahf -mpopcnt -msse3 -msse4.1 -msse4.2 -mssse3 -mavx -mavx2 -mbmi -mbmi2 -mf16c -mfma -mlzcnt -mmovbe -mxsave -mavx512f -mavx512bw -mavx512cd -mavx512dq -mavx512vl"
           }
         ],
-        "intel": [
-            {
-            "versions": "16.0:",
-            "name": "skylake-avx512",
-            "flags": "-march={name} -mtune={name}"
-            }
-        ],
         "oneapi": [
           {
             "versions": "2021.2.0:",
@@ -1433,92 +1412,6 @@
         ]
       }
     },
-    "sapphirerapids": {
-      "from": [
-        "icelake"
-      ],
-      "vendor": "GenuineIntel",
-      "features": [
-        "mmx",
-        "sse",
-        "sse2",
-        "ssse3",
-        "sse4_1",
-        "sse4_2",
-        "popcnt",
-        "aes",
-        "pclmulqdq",
-        "avx",
-        "rdrand",
-        "f16c",
-        "movbe",
-        "fma",
-        "avx2",
-        "bmi1",
-        "bmi2",
-        "rdseed",
-        "adx",
-        "clflushopt",
-        "xsavec",
-        "xsaveopt",
-        "avx512f",
-        "avx512vl",
-        "avx512bw",
-        "avx512dq",
-        "avx512cd",
-        "avx512vbmi",
-        "avx512ifma",
-        "sha_ni",
-        "clwb",
-        "rdpid",
-        "gfni",
-        "avx512_vbmi2",
-        "avx512_vpopcntdq",
-        "avx512_bitalg",
-        "avx512_vnni",
-        "vpclmulqdq",
-        "vaes",
-        "avx512_bf16",
-        "cldemote",
-        "movdir64b",
-        "movdiri",
-        "pdcm",
-        "serialize",
-        "waitpkg"
-      ],
-      "compilers": {
-        "gcc": [
-          {
-            "versions": "11.0:",
-            "flags": "-march={name} -mtune={name}"
-          }
-        ],
-        "clang": [
-          {
-            "versions": "12.0:",
-            "flags": "-march={name} -mtune={name}"
-          }
-        ],
-        "intel": [
-          {
-            "versions": "2021.2:",
-            "flags": "-march={name} -mtune={name}"
-          }
-        ],
-        "oneapi": [
-          {
-            "versions": "2021.2:",
-            "flags": "-march={name} -mtune={name}"
-          }
-        ],
-        "dpcpp": [
-          {
-              "versions": "2021.2:",
-            "flags": "-march={name} -mtune={name}"
-          }
-        ]
-      }
-    },
     "k10": {
       "from": ["x86_64"],
       "vendor": "AuthenticAMD",
@@ -2172,6 +2065,8 @@
         "pku",
         "gfni",
         "flush_l1d",
+        "erms",
+        "avic",
         "avx512f",
         "avx512dq",
         "avx512ifma",
@@ -2188,12 +2083,12 @@
       "compilers": {
         "gcc": [
           {
-            "versions": "10.3:12.2",
+            "versions": "10.3:13.0",
             "name": "znver3",
             "flags": "-march={name} -mtune={name} -mavx512f -mavx512dq -mavx512ifma -mavx512cd -mavx512bw -mavx512vl -mavx512vbmi -mavx512vbmi2 -mavx512vnni -mavx512bitalg"
           },
           {
-            "versions": "12.3:",
+            "versions": "13.1:",
             "name": "znver4",
             "flags": "-march={name} -mtune={name}"
           }

lib/spack/external/ctest_log_parser.py

@@ -65,6 +65,9 @@
 up to date with CTest, just make sure the ``*_matches`` and
 ``*_exceptions`` lists are kept up to date with CTest's build handler.
 """
+from __future__ import print_function
+from __future__ import division
+
 import re
 import math
 import multiprocessing
@@ -208,7 +211,7 @@
 ]
 
 
-class LogEvent:
+class LogEvent(object):
     """Class representing interesting events (e.g., errors) in a build log."""
     def __init__(self, text, line_no,
                  source_file=None, source_line_no=None,
@@ -345,7 +348,7 @@ def _parse_unpack(args):
     return _parse(*args)
 
 
-class CTestLogParser:
+class CTestLogParser(object):
     """Log file parser that extracts errors and warnings."""
     def __init__(self, profile=False):
         # whether to record timing information

lib/spack/llnl/path.py

@@ -1,105 +0,0 @@
-# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
-# Spack Project Developers. See the top-level COPYRIGHT file for details.
-#
-# SPDX-License-Identifier: (Apache-2.0 OR MIT)
-"""Path primitives that just require Python standard library."""
-import functools
-import sys
-from typing import List, Optional
-from urllib.parse import urlparse
-
-
-class Path:
-    """Enum to identify the path-style."""
-
-    unix: int = 0
-    windows: int = 1
-    platform_path: int = windows if sys.platform == "win32" else unix
-
-
-def format_os_path(path: str, mode: int = Path.unix) -> str:
-    """Formats the input path to use consistent, platform specific separators.
-
-    Absolute paths are converted between drive letters and a prepended '/' as per platform
-    requirement.
-
-    Parameters:
-        path: the path to be normalized, must be a string or expose the replace method.
-        mode: the path file separator style to normalize the passed path to.
-            Default is unix style, i.e. '/'
-    """
-    if not path:
-        return path
-    if mode == Path.windows:
-        path = path.replace("/", "\\")
-    else:
-        path = path.replace("\\", "/")
-    return path
-
-
-def convert_to_posix_path(path: str) -> str:
-    """Converts the input path to POSIX style."""
-    return format_os_path(path, mode=Path.unix)
-
-
-def convert_to_windows_path(path: str) -> str:
-    """Converts the input path to Windows style."""
-    return format_os_path(path, mode=Path.windows)
-
-
-def convert_to_platform_path(path: str) -> str:
-    """Converts the input path to the current platform's native style."""
-    return format_os_path(path, mode=Path.platform_path)
-
-
-def path_to_os_path(*parameters: str) -> List[str]:
-    """Takes an arbitrary number of positional parameters, converts each argument of type
-    string to use a normalized filepath separator, and returns a list of all values.
-    """
-
-    def _is_url(path_or_url: str) -> bool:
-        if "\\" in path_or_url:
-            return False
-        url_tuple = urlparse(path_or_url)
-        return bool(url_tuple.scheme) and len(url_tuple.scheme) > 1
-
-    result = []
-    for item in parameters:
-        if isinstance(item, str) and not _is_url(item):
-            item = convert_to_platform_path(item)
-        result.append(item)
-    return result
-
-
-def system_path_filter(_func=None, arg_slice: Optional[slice] = None):
-    """Filters function arguments to account for platform path separators.
-    Optional slicing range can be specified to select specific arguments
-
-    This decorator takes all (or a slice) of a method's positional arguments
-    and normalizes usage of filepath separators on a per platform basis.
-
-    Note: `**kwargs`, urls, and any type that is not a string are ignored
-    so in such cases where path normalization is required, that should be
-    handled by calling path_to_os_path directly as needed.
-
-    Parameters:
-        arg_slice: a slice object specifying the slice of arguments
-            in the decorated method over which filepath separators are
-            normalized
-    """
-
-    def holder_func(func):
-        @functools.wraps(func)
-        def path_filter_caller(*args, **kwargs):
-            args = list(args)
-            if arg_slice:
-                args[arg_slice] = path_to_os_path(*args[arg_slice])
-            else:
-                args = path_to_os_path(*args)
-            return func(*args, **kwargs)
-
-        return path_filter_caller
-
-    if _func:
-        return holder_func(_func)
-    return holder_func

lib/spack/llnl/string.py

@@ -1,67 +0,0 @@
-# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
-# Spack Project Developers. See the top-level COPYRIGHT file for details.
-#
-# SPDX-License-Identifier: (Apache-2.0 OR MIT)
-"""String manipulation functions that do not have other dependencies than Python
-standard library
-"""
-from typing import List, Optional
-
-
-def comma_list(sequence: List[str], article: str = "") -> str:
-    if type(sequence) is not list:
-        sequence = list(sequence)
-
-    if not sequence:
-        return ""
-    if len(sequence) == 1:
-        return sequence[0]
-
-    out = ", ".join(str(s) for s in sequence[:-1])
-    if len(sequence) != 2:
-        out += ","  # oxford comma
-    out += " "
-    if article:
-        out += article + " "
-    out += str(sequence[-1])
-    return out
-
-
-def comma_or(sequence: List[str]) -> str:
-    """Return a string with all the elements of the input joined by comma, but the last
-    one (which is joined by 'or').
-    """
-    return comma_list(sequence, "or")
-
-
-def comma_and(sequence: List[str]) -> str:
-    """Return a string with all the elements of the input joined by comma, but the last
-    one (which is joined by 'and').
-    """
-    return comma_list(sequence, "and")
-
-
-def quote(sequence: List[str], q: str = "'") -> List[str]:
-    """Quotes each item in the input list with the quote character passed as second argument."""
-    return [f"{q}{e}{q}" for e in sequence]
-
-
-def plural(n: int, singular: str, plural: Optional[str] = None, show_n: bool = True) -> str:
-    """Pluralize <singular> word by adding an s if n != 1.
-
-    Arguments:
-        n: number of things there are
-        singular: singular form of word
-        plural: optional plural form, for when it's not just singular + 's'
-        show_n: whether to include n in the result string (default True)
-
-    Returns:
-        "1 thing" if n == 1 or "n things" if n != 1
-    """
-    number = f"{n} " if show_n else ""
-    if n == 1:
-        return f"{number}{singular}"
-    elif plural is not None:
-        return f"{number}{plural}"
-    else:
-        return f"{number}{singular}s"

lib/spack/llnl/url.py

@@ -1,459 +0,0 @@
-# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
-# Spack Project Developers. See the top-level COPYRIGHT file for details.
-#
-# SPDX-License-Identifier: (Apache-2.0 OR MIT)
-"""URL primitives that just require Python standard library."""
-import itertools
-import os.path
-import re
-from typing import Optional, Set, Tuple
-from urllib.parse import urlsplit, urlunsplit
-
-# Archive extensions allowed in Spack
-PREFIX_EXTENSIONS = ("tar", "TAR")
-EXTENSIONS = ("gz", "bz2", "xz", "Z")
-NO_TAR_EXTENSIONS = ("zip", "tgz", "tbz2", "tbz", "txz")
-
-# Add PREFIX_EXTENSIONS and EXTENSIONS last so that .tar.gz is matched *before* .tar or .gz
-ALLOWED_ARCHIVE_TYPES = (
-    tuple(".".join(ext) for ext in itertools.product(PREFIX_EXTENSIONS, EXTENSIONS))
-    + PREFIX_EXTENSIONS
-    + EXTENSIONS
-    + NO_TAR_EXTENSIONS
-)
-CONTRACTION_MAP = {"tgz": "tar.gz", "txz": "tar.xz", "tbz": "tar.bz2", "tbz2": "tar.bz2"}
-
-
-def find_list_urls(url: str) -> Set[str]:
-    r"""Find good list URLs for the supplied URL.
-
-    By default, returns the dirname of the archive path.
-
-    Provides special treatment for the following websites, which have a
-    unique list URL different from the dirname of the download URL:
-
-    =========  =======================================================
-    GitHub     https://github.com/<repo>/<name>/releases
-    GitLab     https://gitlab.\*/<repo>/<name>/tags
-    BitBucket  https://bitbucket.org/<repo>/<name>/downloads/?tab=tags
-    CRAN       https://\*.r-project.org/src/contrib/Archive/<name>
-    PyPI       https://pypi.org/simple/<name>/
-    LuaRocks   https://luarocks.org/modules/<repo>/<name>
-    =========  =======================================================
-
-    Note: this function is called by `spack versions`, `spack checksum`,
-    and `spack create`, but not by `spack fetch` or `spack install`.
-
-    Parameters:
-        url (str): The download URL for the package
-
-    Returns:
-        set: One or more list URLs for the package
-    """
-
-    url_types = [
-        # GitHub
-        # e.g. https://github.com/llnl/callpath/archive/v1.0.1.tar.gz
-        (r"(.*github\.com/[^/]+/[^/]+)", lambda m: m.group(1) + "/releases"),
-        # GitLab API endpoint
-        # e.g. https://gitlab.dkrz.de/api/v4/projects/k202009%2Flibaec/repository/archive.tar.gz?sha=v1.0.2
-        (
-            r"(.*gitlab[^/]+)/api/v4/projects/([^/]+)%2F([^/]+)",
-            lambda m: m.group(1) + "/" + m.group(2) + "/" + m.group(3) + "/tags",
-        ),
-        # GitLab non-API endpoint
-        # e.g. https://gitlab.dkrz.de/k202009/libaec/uploads/631e85bcf877c2dcaca9b2e6d6526339/libaec-1.0.0.tar.gz
-        (r"(.*gitlab[^/]+/(?!api/v4/projects)[^/]+/[^/]+)", lambda m: m.group(1) + "/tags"),
-        # BitBucket
-        # e.g. https://bitbucket.org/eigen/eigen/get/3.3.3.tar.bz2
-        (r"(.*bitbucket.org/[^/]+/[^/]+)", lambda m: m.group(1) + "/downloads/?tab=tags"),
-        # CRAN
-        # e.g. https://cran.r-project.org/src/contrib/Rcpp_0.12.9.tar.gz
-        # e.g. https://cloud.r-project.org/src/contrib/rgl_0.98.1.tar.gz
-        (
-            r"(.*\.r-project\.org/src/contrib)/([^_]+)",
-            lambda m: m.group(1) + "/Archive/" + m.group(2),
-        ),
-        # PyPI
-        # e.g. https://pypi.io/packages/source/n/numpy/numpy-1.19.4.zip
-        # e.g. https://www.pypi.io/packages/source/n/numpy/numpy-1.19.4.zip
-        # e.g. https://pypi.org/packages/source/n/numpy/numpy-1.19.4.zip
-        # e.g. https://pypi.python.org/packages/source/n/numpy/numpy-1.19.4.zip
-        # e.g. https://files.pythonhosted.org/packages/source/n/numpy/numpy-1.19.4.zip
-        # e.g. https://pypi.io/packages/py2.py3/o/opencensus-context/opencensus_context-0.1.1-py2.py3-none-any.whl
-        (
-            r"(?:pypi|pythonhosted)[^/]+/packages/[^/]+/./([^/]+)",
-            lambda m: "https://pypi.org/simple/" + m.group(1) + "/",
-        ),
-        # LuaRocks
-        # e.g. https://luarocks.org/manifests/gvvaughan/lpeg-1.0.2-1.src.rock
-        # e.g. https://luarocks.org/manifests/openresty/lua-cjson-2.1.0-1.src.rock
-        (
-            r"luarocks[^/]+/(?:modules|manifests)/(?P<org>[^/]+)/"
-            + r"(?P<name>.+?)-[0-9.-]*\.src\.rock",
-            lambda m: "https://luarocks.org/modules/"
-            + m.group("org")
-            + "/"
-            + m.group("name")
-            + "/",
-        ),
-    ]
-
-    list_urls = {os.path.dirname(url)}
-
-    for pattern, fun in url_types:
-        match = re.search(pattern, url)
-        if match:
-            list_urls.add(fun(match))
-
-    return list_urls
-
-
-def strip_query_and_fragment(url: str) -> Tuple[str, str]:
-    """Strips query and fragment from a url, then returns the base url and the suffix.
-
-    Args:
-        url: URL to be stripped
-
-    Raises:
-        ValueError: when there is any error parsing the URL
-    """
-    components = urlsplit(url)
-    stripped = components[:3] + (None, None)
-
-    query, frag = components[3:5]
-    suffix = ""
-    if query:
-        suffix += "?" + query
-    if frag:
-        suffix += "#" + frag
-
-    return urlunsplit(stripped), suffix
-
-
-SOURCEFORGE_RE = re.compile(r"(.*(?:sourceforge\.net|sf\.net)/.*)(/download)$")
-
-
-def split_url_on_sourceforge_suffix(url: str) -> Tuple[str, ...]:
-    """If the input is a sourceforge URL, returns base URL and "/download" suffix. Otherwise,
-    returns the input URL and an empty string.
-    """
-    match = SOURCEFORGE_RE.search(url)
-    if match is not None:
-        return match.groups()
-    return url, ""
-
-
-def has_extension(path_or_url: str, ext: str) -> bool:
-    """Returns true if the extension in input is present in path, false otherwise."""
-    prefix, _ = split_url_on_sourceforge_suffix(path_or_url)
-    if not ext.startswith(r"\."):
-        ext = rf"\.{ext}$"
-
-    if re.search(ext, prefix):
-        return True
-    return False
-
-
-def extension_from_path(path_or_url: Optional[str]) -> Optional[str]:
-    """Tries to match an allowed archive extension to the input. Returns the first match,
-    or None if no match was found.
-
-    Raises:
-        ValueError: if the input is None
-    """
-    if path_or_url is None:
-        raise ValueError("Can't call extension() on None")
-
-    for t in ALLOWED_ARCHIVE_TYPES:
-        if has_extension(path_or_url, t):
-            return t
-    return None
-
-
-def remove_extension(path_or_url: str, *, extension: str) -> str:
-    """Returns the input with the extension removed"""
-    suffix = rf"\.{extension}$"
-    return re.sub(suffix, "", path_or_url)
-
-
-def check_and_remove_ext(path: str, *, extension: str) -> str:
-    """Returns the input path with the extension removed, if the extension is present in path.
-    Otherwise, returns the input unchanged.
-    """
-    if not has_extension(path, extension):
-        return path
-    path, _ = split_url_on_sourceforge_suffix(path)
-    return remove_extension(path, extension=extension)
-
-
-def strip_extension(path_or_url: str, *, extension: Optional[str] = None) -> str:
-    """If a path contains the extension in input, returns the path stripped of the extension.
-    Otherwise, returns the input path.
-
-    If extension is None, attempts to strip any allowed extension from path.
-    """
-    if extension is None:
-        for t in ALLOWED_ARCHIVE_TYPES:
-            if has_extension(path_or_url, ext=t):
-                extension = t
-                break
-        else:
-            return path_or_url
-
-    return check_and_remove_ext(path_or_url, extension=extension)
-
-
-def split_url_extension(url: str) -> Tuple[str, ...]:
-    """Some URLs have a query string, e.g.:
-
-    1. https://github.com/losalamos/CLAMR/blob/packages/PowerParser_v2.0.7.tgz?raw=true
-    2. http://www.apache.org/dyn/closer.cgi?path=/cassandra/1.2.0/apache-cassandra-1.2.0-rc2-bin.tar.gz
-    3. https://gitlab.kitware.com/vtk/vtk/repository/archive.tar.bz2?ref=v7.0.0
-
-    In (1), the query string needs to be stripped to get at the
-    extension, but in (2) & (3), the filename is IN a single final query
-    argument.
-
-    This strips the URL into three pieces: ``prefix``, ``ext``, and ``suffix``.
-    The suffix contains anything that was stripped off the URL to
-    get at the file extension.  In (1), it will be ``'?raw=true'``, but
-    in (2), it will be empty. In (3) the suffix is a parameter that follows
-    after the file extension, e.g.:
-
-    1. ``('https://github.com/losalamos/CLAMR/blob/packages/PowerParser_v2.0.7', '.tgz', '?raw=true')``
-    2. ``('http://www.apache.org/dyn/closer.cgi?path=/cassandra/1.2.0/apache-cassandra-1.2.0-rc2-bin', '.tar.gz', None)``
-    3. ``('https://gitlab.kitware.com/vtk/vtk/repository/archive', '.tar.bz2', '?ref=v7.0.0')``
-    """
-    # Strip off sourceforge download suffix.
-    # e.g. https://sourceforge.net/projects/glew/files/glew/2.0.0/glew-2.0.0.tgz/download
-    prefix, suffix = split_url_on_sourceforge_suffix(url)
-
-    ext = extension_from_path(prefix)
-    if ext is not None:
-        prefix = strip_extension(prefix)
-        return prefix, ext, suffix
-
-    try:
-        prefix, suf = strip_query_and_fragment(prefix)
-    except ValueError:
-        # FIXME: tty.debug("Got error parsing path %s" % path)
-        # Ignore URL parse errors here
-        return url, ""
-
-    ext = extension_from_path(prefix)
-    prefix = strip_extension(prefix)
-    suffix = suf + suffix
-    if ext is None:
-        ext = ""
-
-    return prefix, ext, suffix
-
-
-def strip_version_suffixes(path_or_url: str) -> str:
-    """Some tarballs contain extraneous information after the version:
-
-    * ``bowtie2-2.2.5-source``
-    * ``libevent-2.0.21-stable``
-    * ``cuda_8.0.44_linux.run``
-
-    These strings are not part of the version number and should be ignored.
-    This function strips those suffixes off and returns the remaining string.
-    The goal is that the version is always the last thing in ``path``:
-
-    * ``bowtie2-2.2.5``
-    * ``libevent-2.0.21``
-    * ``cuda_8.0.44``
-
-    Args:
-        path_or_url: The filename or URL for the package
-
-    Returns:
-        The ``path`` with any extraneous suffixes removed
-    """
-    # NOTE: This could be done with complicated regexes in parse_version_offset
-    # NOTE: The problem is that we would have to add these regexes to the end
-    # NOTE: of every single version regex. Easier to just strip them off
-    # NOTE: permanently
-
-    suffix_regexes = [
-        # Download type
-        r"[Ii]nstall",
-        r"all",
-        r"code",
-        r"[Ss]ources?",
-        r"file",
-        r"full",
-        r"single",
-        r"with[a-zA-Z_-]+",
-        r"rock",
-        r"src(_0)?",
-        r"public",
-        r"bin",
-        r"binary",
-        r"run",
-        r"[Uu]niversal",
-        r"jar",
-        r"complete",
-        r"dynamic",
-        r"oss",
-        r"gem",
-        r"tar",
-        r"sh",
-        # Download version
-        r"release",
-        r"bin",
-        r"stable",
-        r"[Ff]inal",
-        r"rel",
-        r"orig",
-        r"dist",
-        r"\+",
-        # License
-        r"gpl",
-        # Arch
-        # Needs to come before and after OS, appears in both orders
-        r"ia32",
-        r"intel",
-        r"amd64",
-        r"linux64",
-        r"x64",
-        r"64bit",
-        r"x86[_-]64",
-        r"i586_64",
-        r"x86",
-        r"i[36]86",
-        r"ppc64(le)?",
-        r"armv?(7l|6l|64)",
-        # Other
-        r"cpp",
-        r"gtk",
-        r"incubating",
-        # OS
-        r"[Ll]inux(_64)?",
-        r"LINUX",
-        r"[Uu]ni?x",
-        r"[Ss]un[Oo][Ss]",
-        r"[Mm]ac[Oo][Ss][Xx]?",
-        r"[Oo][Ss][Xx]",
-        r"[Dd]arwin(64)?",
-        r"[Aa]pple",
-        r"[Ww]indows",
-        r"[Ww]in(64|32)?",
-        r"[Cc]ygwin(64|32)?",
-        r"[Mm]ingw",
-        r"centos",
-        # Arch
-        # Needs to come before and after OS, appears in both orders
-        r"ia32",
-        r"intel",
-        r"amd64",
-        r"linux64",
-        r"x64",
-        r"64bit",
-        r"x86[_-]64",
-        r"i586_64",
-        r"x86",
-        r"i[36]86",
-        r"ppc64(le)?",
-        r"armv?(7l|6l|64)?",
-        # PyPI
-        r"[._-]py[23].*\.whl",
-        r"[._-]cp[23].*\.whl",
-        r"[._-]win.*\.exe",
-    ]
-
-    for regex in suffix_regexes:
-        # Remove the suffix from the end of the path
-        # This may be done multiple times
-        path_or_url = re.sub(r"[._-]?" + regex + "$", "", path_or_url)
-
-    return path_or_url
-
-
-def expand_contracted_extension(extension: str) -> str:
-    """Returns the expanded version of a known contracted extension.
-
-    This function maps extensions like ".tgz" to ".tar.gz". On unknown extensions,
-    return the input unmodified.
-    """
-    extension = extension.strip(".")
-    return CONTRACTION_MAP.get(extension, extension)
-
-
-def expand_contracted_extension_in_path(
-    path_or_url: str, *, extension: Optional[str] = None
-) -> str:
-    """Returns the input path or URL with any contraction extension expanded.
-
-    Args:
-        path_or_url: path or URL to be expanded
-        extension: if specified, only attempt to expand that extension
-    """
-    extension = extension or extension_from_path(path_or_url)
-    if extension is None:
-        return path_or_url
-
-    expanded = expand_contracted_extension(extension)
-    if expanded != extension:
-        return re.sub(rf"{extension}", rf"{expanded}", path_or_url)
-    return path_or_url
-
-
-def compression_ext_from_compressed_archive(extension: str) -> Optional[str]:
-    """Returns compression extension for a compressed archive"""
-    extension = expand_contracted_extension(extension)
-    for ext in [*EXTENSIONS]:
-        if ext in extension:
-            return ext
-    return None
-
-
-def strip_compression_extension(path_or_url: str, ext: Optional[str] = None) -> str:
-    """Strips the compression extension from the input, and returns it. For instance,
-    "foo.tgz" becomes "foo.tar".
-
-    If no extension is given, try a default list of extensions.
-
-    Args:
-        path_or_url: input to be stripped
-        ext: if given, extension to be stripped
-    """
-    if not extension_from_path(path_or_url):
-        return path_or_url
-
-    expanded_path = expand_contracted_extension_in_path(path_or_url)
-    candidates = [ext] if ext is not None else EXTENSIONS
-    for current_extension in candidates:
-        modified_path = check_and_remove_ext(expanded_path, extension=current_extension)
-        if modified_path != expanded_path:
-            return modified_path
-    return expanded_path
-
-
-def allowed_archive(path_or_url: str) -> bool:
-    """Returns true if the input is a valid archive, False otherwise."""
-    return (
-        False if not path_or_url else any(path_or_url.endswith(t) for t in ALLOWED_ARCHIVE_TYPES)
-    )
-
-
-def determine_url_file_extension(path: str) -> str:
-    """This returns the type of archive a URL refers to.  This is
-    sometimes confusing because of URLs like:
-
-    (1) https://github.com/petdance/ack/tarball/1.93_02
-
-    Where the URL doesn't actually contain the filename.  We need
-    to know what type it is so that we can appropriately name files
-    in mirrors.
-    """
-    match = re.search(r"github.com/.+/(zip|tar)ball/", path)
-    if match:
-        if match.group(1) == "zip":
-            return "zip"
-        elif match.group(1) == "tar":
-            return "tar.gz"
-
-    prefix, ext, suffix = split_url_extension(path)
-    return ext

lib/spack/llnl/util/argparsewriter.py

@@ -3,42 +3,33 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
-import abc
+from __future__ import print_function
+
 import argparse
+import errno
 import io
 import re
 import sys
-from argparse import ArgumentParser
-from typing import IO, Any, Iterable, List, Optional, Sequence, Tuple, Union
 
 
-class Command:
+class Command(object):
     """Parsed representation of a command from argparse.
 
-    This is a single command from an argparse parser. ``ArgparseWriter`` creates these and returns
+    This is a single command from an argparse parser. ``ArgparseWriter``
-    them from ``parse()``, and it passes one of these to each call to ``format()`` so that we can
+    creates these and returns them from ``parse()``, and it passes one of
-    take an action for a single command.
+    these to each call to ``format()`` so that we can take an action for
+    a single command.
+
+    Parts of a Command:
+      - prog: command name (str)
+      - description: command description (str)
+      - usage: command usage (str)
+      - positionals: list of positional arguments (list)
+      - optionals: list of optional arguments (list)
+      - subcommands: list of subcommand parsers (list)
     """
 
-    def __init__(
+    def __init__(self, prog, description, usage, positionals, optionals, subcommands):
-        self,
-        prog: str,
-        description: Optional[str],
-        usage: str,
-        positionals: List[Tuple[str, Optional[Iterable[Any]], Union[int, str, None], str]],
-        optionals: List[Tuple[Sequence[str], List[str], str, Union[int, str, None], str]],
-        subcommands: List[Tuple[ArgumentParser, str, str]],
-    ) -> None:
-        """Initialize a new Command instance.
-
-        Args:
-            prog: Program name.
-            description: Command description.
-            usage: Command usage.
-            positionals: List of positional arguments.
-            optionals: List of optional arguments.
-            subcommands: List of subcommand parsers.
-        """
         self.prog = prog
         self.description = description
         self.usage = usage
@@ -47,34 +38,35 @@ def __init__(
         self.subcommands = subcommands
 
 
-# NOTE: The only reason we subclass argparse.HelpFormatter is to get access to self._expand_help(),
+# NOTE: The only reason we subclass argparse.HelpFormatter is to get access
-# ArgparseWriter is not intended to be used as a formatter_class.
+# to self._expand_help(), ArgparseWriter is not intended to be used as a
-class ArgparseWriter(argparse.HelpFormatter, abc.ABC):
+# formatter_class.
-    """Analyze an argparse ArgumentParser for easy generation of help."""
+class ArgparseWriter(argparse.HelpFormatter):
+    """Analyzes an argparse ArgumentParser for easy generation of help."""
 
-    def __init__(self, prog: str, out: IO = sys.stdout, aliases: bool = False) -> None:
+    def __init__(self, prog, out=None, aliases=False):
-        """Initialize a new ArgparseWriter instance.
+        """Initializes a new ArgparseWriter instance.
 
-        Args:
+        Parameters:
-            prog: Program name.
+            prog (str): the program name
-            out: File object to write to.
+            out (file object): the file to write to (default sys.stdout)
-            aliases: Whether or not to include subparsers for aliases.
+            aliases (bool): whether or not to include subparsers for aliases
         """
-        super().__init__(prog)
+        super(ArgparseWriter, self).__init__(prog)
         self.level = 0
         self.prog = prog
-        self.out = out
+        self.out = sys.stdout if out is None else out
         self.aliases = aliases
 
-    def parse(self, parser: ArgumentParser, prog: str) -> Command:
+    def parse(self, parser, prog):
-        """Parse the parser object and return the relavent components.
+        """Parses the parser object and returns the relavent components.
 
-        Args:
+        Parameters:
-            parser: Command parser.
+            parser (argparse.ArgumentParser): the parser
-            prog: Program name.
+            prog (str): the command name
 
         Returns:
-            Information about the command from the parser.
+            (Command) information about the command from the parser
         """
         self.parser = parser
 
@@ -88,7 +80,8 @@ def parse(self, parser: ArgumentParser, prog: str) -> Command:
         groups = parser._mutually_exclusive_groups
         usage = fmt._format_usage(None, actions, groups, "").strip()
 
-        # Go through actions and split them into optionals, positionals, and subcommands
+        # Go through actions and split them into optionals, positionals,
+        # and subcommands
         optionals = []
         positionals = []
         subcommands = []
@@ -96,97 +89,74 @@ def parse(self, parser: ArgumentParser, prog: str) -> Command:
             if action.option_strings:
                 flags = action.option_strings
                 dest_flags = fmt._format_action_invocation(action)
-                nargs = action.nargs
+                help = self._expand_help(action) if action.help else ""
-                help = (
+                help = help.replace("\n", " ")
-                    self._expand_help(action)
+                optionals.append((flags, dest_flags, help))
-                    if action.help and action.help != argparse.SUPPRESS
-                    else ""
-                )
-                help = help.split("\n")[0]
-
-                if action.choices is not None:
-                    dest = [str(choice) for choice in action.choices]
-                else:
-                    dest = [action.dest]
-
-                optionals.append((flags, dest, dest_flags, nargs, help))
             elif isinstance(action, argparse._SubParsersAction):
                 for subaction in action._choices_actions:
                     subparser = action._name_parser_map[subaction.dest]
-                    help = (
+                    subcommands.append((subparser, subaction.dest))
-                        self._expand_help(subaction)
-                        if subaction.help and action.help != argparse.SUPPRESS
-                        else ""
-                    )
-                    help = help.split("\n")[0]
-                    subcommands.append((subparser, subaction.dest, help))
 
                     # Look for aliases of the form 'name (alias, ...)'
-                    if self.aliases and isinstance(subaction.metavar, str):
+                    if self.aliases:
                         match = re.match(r"(.*) \((.*)\)", subaction.metavar)
                         if match:
                             aliases = match.group(2).split(", ")
                             for alias in aliases:
                                 subparser = action._name_parser_map[alias]
-                                help = (
+                                subcommands.append((subparser, alias))
-                                    self._expand_help(subaction)
-                                    if subaction.help and action.help != argparse.SUPPRESS
-                                    else ""
-                                )
-                                help = help.split("\n")[0]
-                                subcommands.append((subparser, alias, help))
             else:
                 args = fmt._format_action_invocation(action)
-                help = (
+                help = self._expand_help(action) if action.help else ""
-                    self._expand_help(action)
+                help = help.replace("\n", " ")
-                    if action.help and action.help != argparse.SUPPRESS
+                positionals.append((args, help))
-                    else ""
-                )
-                help = help.split("\n")[0]
-                positionals.append((args, action.choices, action.nargs, help))
 
         return Command(prog, description, usage, positionals, optionals, subcommands)
 
-    @abc.abstractmethod
+    def format(self, cmd):
-    def format(self, cmd: Command) -> str:
+        """Returns the string representation of a single node in the
-        """Return the string representation of a single node in the parser tree.
+        parser tree.
 
-        Override this in subclasses to define how each subcommand should be displayed.
+        Override this in subclasses to define how each subcommand
+        should be displayed.
 
-        Args:
+        Parameters:
-            cmd: Parsed information about a command or subcommand.
+            (Command): parsed information about a command or subcommand
 
         Returns:
-            String representation of this subcommand.
+            str: the string representation of this subcommand
         """
+        raise NotImplementedError
 
-    def _write(self, parser: ArgumentParser, prog: str, level: int = 0) -> None:
+    def _write(self, parser, prog, level=0):
-        """Recursively write a parser.
+        """Recursively writes a parser.
 
-        Args:
+        Parameters:
-            parser: Command parser.
+            parser (argparse.ArgumentParser): the parser
-            prog: Program name.
+            prog (str): the command name
-            level: Current level.
+            level (int): the current level
         """
         self.level = level
 
         cmd = self.parse(parser, prog)
         self.out.write(self.format(cmd))
 
-        for subparser, prog, help in cmd.subcommands:
+        for subparser, prog in cmd.subcommands:
             self._write(subparser, prog, level=level + 1)
 
-    def write(self, parser: ArgumentParser) -> None:
+    def write(self, parser):
         """Write out details about an ArgumentParser.
 
         Args:
-            parser: Command parser.
+            parser (argparse.ArgumentParser): the parser
         """
         try:
             self._write(parser, self.prog)
-        except BrokenPipeError:
+        except IOError as e:
             # Swallow pipe errors
-            pass
+            # Raises IOError in Python 2 and BrokenPipeError in Python 3
+            if e.errno != errno.EPIPE:
+                raise
 
 
 _rst_levels = ["=", "-", "^", "~", ":", "`"]
@@ -195,33 +165,21 @@ def write(self, parser: ArgumentParser) -> None:
 class ArgparseRstWriter(ArgparseWriter):
     """Write argparse output as rst sections."""
 
-    def __init__(
+    def __init__(self, prog, out=None, aliases=False, rst_levels=_rst_levels):
-        self,
+        """Create a new ArgparseRstWriter.
-        prog: str,
-        out: IO = sys.stdout,
-        aliases: bool = False,
-        rst_levels: Sequence[str] = _rst_levels,
-    ) -> None:
-        """Initialize a new ArgparseRstWriter instance.
 
-        Args:
+        Parameters:
-            prog: Program name.
+            prog (str): program name
-            out: File object to write to.
+            out (file object): file to write to
-            aliases: Whether or not to include subparsers for aliases.
+            aliases (bool): whether or not to include subparsers for aliases
-            rst_levels: List of characters for rst section headings.
+            rst_levels (list of str): list of characters
+                for rst section headings
         """
-        super().__init__(prog, out, aliases)
+        out = sys.stdout if out is None else out
+        super(ArgparseRstWriter, self).__init__(prog, out, aliases)
         self.rst_levels = rst_levels
 
-    def format(self, cmd: Command) -> str:
+    def format(self, cmd):
-        """Return the string representation of a single node in the parser tree.
-
-        Args:
-            cmd: Parsed information about a command or subcommand.
-
-        Returns:
-            String representation of a node.
-        """
         string = io.StringIO()
         string.write(self.begin_command(cmd.prog))
 
@@ -232,13 +190,13 @@ def format(self, cmd: Command) -> str:
 
         if cmd.positionals:
             string.write(self.begin_positionals())
-            for args, choices, nargs, help in cmd.positionals:
+            for args, help in cmd.positionals:
                 string.write(self.positional(args, help))
             string.write(self.end_positionals())
 
         if cmd.optionals:
             string.write(self.begin_optionals())
-            for flags, dest, dest_flags, nargs, help in cmd.optionals:
+            for flags, dest_flags, help in cmd.optionals:
                 string.write(self.optional(dest_flags, help))
             string.write(self.end_optionals())
 
@@ -247,15 +205,7 @@ def format(self, cmd: Command) -> str:
 
         return string.getvalue()
 
-    def begin_command(self, prog: str) -> str:
+    def begin_command(self, prog):
-        """Text to print before a command.
-
-        Args:
-            prog: Program name.
-
-        Returns:
-            Text before a command.
-        """
         return """
 ----
 
@@ -268,26 +218,10 @@ def begin_command(self, prog: str) -> str:
             prog.replace(" ", "-"), prog, self.rst_levels[self.level] * len(prog)
         )
 
-    def description(self, description: str) -> str:
+    def description(self, description):
-        """Description of a command.
-
-        Args:
-            description: Command description.
-
-        Returns:
-            Description of a command.
-        """
         return description + "\n\n"
 
-    def usage(self, usage: str) -> str:
+    def usage(self, usage):
-        """Example usage of a command.
-
-        Args:
-            usage: Command usage.
-
-        Returns:
-            Usage of a command.
-        """
         return """\
 .. code-block:: console
 
@@ -297,24 +231,10 @@ def usage(self, usage: str) -> str:
             usage
         )
 
-    def begin_positionals(self) -> str:
+    def begin_positionals(self):
-        """Text to print before positional arguments.
-
-        Returns:
-            Positional arguments header.
-        """
         return "\n**Positional arguments**\n\n"
 
-    def positional(self, name: str, help: str) -> str:
+    def positional(self, name, help):
-        """Description of a positional argument.
-
-        Args:
-            name: Argument name.
-            help: Help text.
-
-        Returns:
-            Positional argument description.
-        """
         return """\
 {0}
   {1}
@@ -323,32 +243,13 @@ def positional(self, name: str, help: str) -> str:
             name, help
         )
 
-    def end_positionals(self) -> str:
+    def end_positionals(self):
-        """Text to print after positional arguments.
-
-        Returns:
-            Positional arguments footer.
-        """
         return ""
 
-    def begin_optionals(self) -> str:
+    def begin_optionals(self):
-        """Text to print before optional arguments.
-
-        Returns:
-            Optional arguments header.
-        """
         return "\n**Optional arguments**\n\n"
 
-    def optional(self, opts: str, help: str) -> str:
+    def optional(self, opts, help):
-        """Description of an optional argument.
-
-        Args:
-            opts: Optional argument.
-            help: Help text.
-
-        Returns:
-            Optional argument description.
-        """
         return """\
 ``{0}``
   {1}
@@ -357,23 +258,10 @@ def optional(self, opts: str, help: str) -> str:
             opts, help
         )
 
-    def end_optionals(self) -> str:
+    def end_optionals(self):
-        """Text to print after optional arguments.
-
-        Returns:
-            Optional arguments footer.
-        """
         return ""
 
-    def begin_subcommands(self, subcommands: List[Tuple[ArgumentParser, str, str]]) -> str:
+    def begin_subcommands(self, subcommands):
-        """Table with links to other subcommands.
-
-        Arguments:
-            subcommands: List of subcommands.
-
-        Returns:
-            Subcommand linking text.
-        """
         string = """
 **Subcommands**
 
@@ -382,8 +270,116 @@ def begin_subcommands(self, subcommands: List[Tuple[ArgumentParser, str, str]])
 
 """
 
-        for cmd, _, _ in subcommands:
+        for cmd, _ in subcommands:
             prog = re.sub(r"^[^ ]* ", "", cmd.prog)
             string += "   * :ref:`{0} <{1}>`\n".format(prog, cmd.prog.replace(" ", "-"))
 
         return string + "\n"
+
+
+class ArgparseCompletionWriter(ArgparseWriter):
+    """Write argparse output as shell programmable tab completion functions."""
+
+    def format(self, cmd):
+        """Returns the string representation of a single node in the
+        parser tree.
+
+        Override this in subclasses to define how each subcommand
+        should be displayed.
+
+        Parameters:
+            (Command): parsed information about a command or subcommand
+
+        Returns:
+            str: the string representation of this subcommand
+        """
+
+        assert cmd.optionals  # we should always at least have -h, --help
+        assert not (cmd.positionals and cmd.subcommands)  # one or the other
+
+        # We only care about the arguments/flags, not the help messages
+        positionals = []
+        if cmd.positionals:
+            positionals, _ = zip(*cmd.positionals)
+        optionals, _, _ = zip(*cmd.optionals)
+        subcommands = []
+        if cmd.subcommands:
+            _, subcommands = zip(*cmd.subcommands)
+
+        # Flatten lists of lists
+        optionals = [x for xx in optionals for x in xx]
+
+        return (
+            self.start_function(cmd.prog)
+            + self.body(positionals, optionals, subcommands)
+            + self.end_function(cmd.prog)
+        )
+
+    def start_function(self, prog):
+        """Returns the syntax needed to begin a function definition.
+
+        Parameters:
+            prog (str): the command name
+
+        Returns:
+            str: the function definition beginning
+        """
+        name = prog.replace("-", "_").replace(" ", "_")
+        return "\n_{0}() {{".format(name)
+
+    def end_function(self, prog=None):
+        """Returns the syntax needed to end a function definition.
+
+        Parameters:
+            prog (str or None): the command name
+
+        Returns:
+            str: the function definition ending
+        """
+        return "}\n"
+
+    def body(self, positionals, optionals, subcommands):
+        """Returns the body of the function.
+
+        Parameters:
+            positionals (list): list of positional arguments
+            optionals (list): list of optional arguments
+            subcommands (list): list of subcommand parsers
+
+        Returns:
+            str: the function body
+        """
+        return ""
+
+    def positionals(self, positionals):
+        """Returns the syntax for reporting positional arguments.
+
+        Parameters:
+            positionals (list): list of positional arguments
+
+        Returns:
+            str: the syntax for positional arguments
+        """
+        return ""
+
+    def optionals(self, optionals):
+        """Returns the syntax for reporting optional flags.
+
+        Parameters:
+            optionals (list): list of optional arguments
+
+        Returns:
+            str: the syntax for optional flags
+        """
+        return ""
+
+    def subcommands(self, subcommands):
+        """Returns the syntax for reporting subcommands.
+
+        Parameters:
+            subcommands (list): list of subcommand parsers
+
+        Returns:
+            str: the syntax for subcommand parsers
+        """
+        return ""

lib/spack/llnl/util/filesystem.py

@@ -11,7 +11,6 @@
 import itertools
 import numbers
 import os
-import pathlib
 import posixpath
 import re
 import shutil
@@ -19,17 +18,14 @@
 import sys
 import tempfile
 from contextlib import contextmanager
-from itertools import accumulate
 from typing import Callable, Iterable, List, Match, Optional, Tuple, Union
 
-import llnl.util.symlink
 from llnl.util import tty
 from llnl.util.lang import dedupe, memoized
-from llnl.util.symlink import islink, readlink, resolve_link_target_relative_to_the_link, symlink
+from llnl.util.symlink import islink, symlink
 
 from spack.util.executable import Executable, which
-
+from spack.util.path import path_to_os_path, system_path_filter
-from ..path import path_to_os_path, system_path_filter
 
 if sys.platform != "win32":
     import grp
@@ -105,7 +101,7 @@ def _nop(args, ns=None, follow_symlinks=None):
             pass
 
         # follow symlinks (aka don't not follow symlinks)
-        follow = follow_symlinks or not (islink(src) and islink(dst))
+        follow = follow_symlinks or not (os.path.islink(src) and os.path.islink(dst))
         if follow:
             # use the real function if it exists
             def lookup(name):
@@ -173,7 +169,7 @@ def rename(src, dst):
     if sys.platform == "win32":
         # Windows path existence checks will sometimes fail on junctions/links/symlinks
         # so check for that case
-        if os.path.exists(dst) or islink(dst):
+        if os.path.exists(dst) or os.path.islink(dst):
             os.remove(dst)
     os.rename(src, dst)
 
@@ -337,7 +333,8 @@ def groupid_to_group(x):
 
     if string:
         regex = re.escape(regex)
-    for filename in path_to_os_path(*filenames):
+    filenames = path_to_os_path(*filenames)
+    for filename in filenames:
         msg = 'FILTER FILE: {0} [replacing "{1}"]'
         tty.debug(msg.format(filename, regex))
 
@@ -405,7 +402,7 @@ def groupid_to_group(x):
                 os.remove(backup_filename)
 
 
-class FileFilter:
+class FileFilter(object):
     """Convenience class for calling ``filter_file`` a lot."""
 
     def __init__(self, *filenames):
@@ -569,7 +566,7 @@ def set_install_permissions(path):
     # If this points to a file maintained in a Spack prefix, it is assumed that
     # this function will be invoked on the target. If the file is outside a
     # Spack-maintained prefix, the permissions should not be modified.
-    if islink(path):
+    if os.path.islink(path):
         return
     if os.path.isdir(path):
         os.chmod(path, 0o755)
@@ -613,8 +610,6 @@ def chgrp(path, group, follow_symlinks=True):
         gid = grp.getgrnam(group).gr_gid
     else:
         gid = group
-    if os.stat(path).st_gid == gid:
-        return
     if follow_symlinks:
         os.chown(path, -1, gid)
     else:
@@ -638,7 +633,7 @@ def chmod_x(entry, perms):
 @system_path_filter
 def copy_mode(src, dest):
     """Set the mode of dest to that of src unless it is a link."""
-    if islink(dest):
+    if os.path.islink(dest):
         return
     src_mode = os.stat(src).st_mode
     dest_mode = os.stat(dest).st_mode
@@ -724,12 +719,26 @@ def install(src, dest):
     copy(src, dest, _permissions=True)
 
 
+@system_path_filter
+def resolve_link_target_relative_to_the_link(link):
+    """
+    os.path.isdir uses os.path.exists, which for links will check
+    the existence of the link target. If the link target is relative to
+    the link, we need to construct a pathname that is valid from
+    our cwd (which may not be the same as the link's directory)
+    """
+    target = os.readlink(link)
+    if os.path.isabs(target):
+        return target
+    link_dir = os.path.dirname(os.path.abspath(link))
+    return os.path.join(link_dir, target)
+
+
 @system_path_filter
 def copy_tree(
     src: str,
     dest: str,
     symlinks: bool = True,
-    allow_broken_symlinks: bool = sys.platform != "win32",
     ignore: Optional[Callable[[str], bool]] = None,
     _permissions: bool = False,
 ):
@@ -752,8 +761,6 @@ def copy_tree(
         src (str): the directory to copy
         dest (str): the destination directory
         symlinks (bool): whether or not to preserve symlinks
-        allow_broken_symlinks (bool): whether or not to allow broken (dangling) symlinks,
-            On Windows, setting this to True will raise an exception. Defaults to true on unix.
         ignore (typing.Callable): function indicating which files to ignore
         _permissions (bool): for internal use only
 
@@ -761,8 +768,6 @@ def copy_tree(
         IOError: if *src* does not match any files or directories
         ValueError: if *src* is a parent directory of *dest*
     """
-    if allow_broken_symlinks and sys.platform == "win32":
-        raise llnl.util.symlink.SymlinkError("Cannot allow broken symlinks on Windows!")
     if _permissions:
         tty.debug("Installing {0} to {1}".format(src, dest))
     else:
@@ -776,11 +781,6 @@ def copy_tree(
     if not files:
         raise IOError("No such file or directory: '{0}'".format(src))
 
-    # For Windows hard-links and junctions, the source path must exist to make a symlink. Add
-    # all symlinks to this list while traversing the tree, then when finished, make all
-    # symlinks at the end.
-    links = []
-
     for src in files:
         abs_src = os.path.abspath(src)
         if not abs_src.endswith(os.path.sep):
@@ -803,7 +803,7 @@ def copy_tree(
             ignore=ignore,
             follow_nonexisting=True,
         ):
-            if islink(s):
+            if os.path.islink(s):
                 link_target = resolve_link_target_relative_to_the_link(s)
                 if symlinks:
                     target = os.readlink(s)
@@ -817,9 +817,7 @@ def escaped_path(path):
                             tty.debug("Redirecting link {0} to {1}".format(target, new_target))
                             target = new_target
 
-                    links.append((target, d, s))
+                    symlink(target, d)
-                    continue
-
                 elif os.path.isdir(link_target):
                     mkdirp(d)
                 else:
@@ -834,17 +832,9 @@ def escaped_path(path):
                 set_install_permissions(d)
                 copy_mode(s, d)
 
-    for target, d, s in links:
-        symlink(target, d, allow_broken_symlinks=allow_broken_symlinks)
-        if _permissions:
-            set_install_permissions(d)
-            copy_mode(s, d)
-
 
 @system_path_filter
-def install_tree(
+def install_tree(src, dest, symlinks=True, ignore=None):
-    src, dest, symlinks=True, ignore=None, allow_broken_symlinks=sys.platform != "win32"
-):
     """Recursively install an entire directory tree rooted at *src*.
 
     Same as :py:func:`copy_tree` with the addition of setting proper
@@ -855,21 +845,12 @@ def install_tree(
         dest (str): the destination directory
         symlinks (bool): whether or not to preserve symlinks
         ignore (typing.Callable): function indicating which files to ignore
-        allow_broken_symlinks (bool): whether or not to allow broken (dangling) symlinks,
-            On Windows, setting this to True will raise an exception.
 
     Raises:
         IOError: if *src* does not match any files or directories
         ValueError: if *src* is a parent directory of *dest*
     """
-    copy_tree(
+    copy_tree(src, dest, symlinks=symlinks, ignore=ignore, _permissions=True)
-        src,
-        dest,
-        symlinks=symlinks,
-        allow_broken_symlinks=allow_broken_symlinks,
-        ignore=ignore,
-        _permissions=True,
-    )
 
 
 @system_path_filter
@@ -1273,12 +1254,7 @@ def traverse_tree(
     Keyword Arguments:
         order (str): Whether to do pre- or post-order traversal. Accepted
             values are 'pre' and 'post'
-        ignore (typing.Callable): function indicating which files to ignore. This will also
+        ignore (typing.Callable): function indicating which files to ignore
-            ignore symlinks if they point to an ignored file (regardless of whether the symlink
-            is explicitly ignored); note this only supports one layer of indirection (i.e. if
-            you have x -> y -> z, and z is ignored but x/y are not, then y would be ignored
-            but not x). To avoid this, make sure the ignore function also ignores the symlink
-            paths too.
         follow_nonexisting (bool): Whether to descend into directories in
             ``src`` that do not exit in ``dest``. Default is True
         follow_links (bool): Whether to descend into symlinks in ``src``
@@ -1305,24 +1281,11 @@ def traverse_tree(
         dest_child = os.path.join(dest_path, f)
         rel_child = os.path.join(rel_path, f)
 
-        # If the source path is a link and the link's source is ignored, then ignore the link too,
-        # but only do this if the ignore is defined.
-        if ignore is not None:
-            if islink(source_child) and not follow_links:
-                target = readlink(source_child)
-                all_parents = accumulate(target.split(os.sep), lambda x, y: os.path.join(x, y))
-                if any(map(ignore, all_parents)):
-                    tty.warn(
-                        f"Skipping {source_path} because the source or a part of the source's "
-                        f"path is included in the ignores."
-                    )
-                    continue
-
         # Treat as a directory
         # TODO: for symlinks, os.path.isdir looks for the link target. If the
         # target is relative to the link, then that may not resolve properly
         # relative to our cwd - see resolve_link_target_relative_to_the_link
-        if os.path.isdir(source_child) and (follow_links or not islink(source_child)):
+        if os.path.isdir(source_child) and (follow_links or not os.path.islink(source_child)):
             # When follow_nonexisting isn't set, don't descend into dirs
             # in source that do not exist in dest
             if follow_nonexisting or os.path.exists(dest_child):
@@ -1348,11 +1311,7 @@ def traverse_tree(
 
 def lexists_islink_isdir(path):
     """Computes the tuple (lexists(path), islink(path), isdir(path)) in a minimal
-    number of stat calls on unix. Use os.path and symlink.islink methods for windows."""
+    number of stat calls."""
-    if sys.platform == "win32":
-        if not os.path.lexists(path):
-            return False, False, False
-        return os.path.lexists(path), islink(path), os.path.isdir(path)
     # First try to lstat, so we know if it's a link or not.
     try:
         lst = os.lstat(path)
@@ -1377,7 +1336,7 @@ def lexists_islink_isdir(path):
     return True, is_link, is_dir
 
 
-class BaseDirectoryVisitor:
+class BaseDirectoryVisitor(object):
     """Base class and interface for :py:func:`visit_directory_tree`."""
 
     def visit_file(self, root, rel_path, depth):
@@ -1567,7 +1526,7 @@ def remove_if_dead_link(path):
     Parameters:
         path (str): The potential dead link
     """
-    if islink(path) and not os.path.exists(path):
+    if os.path.islink(path) and not os.path.exists(path):
         os.unlink(path)
 
 
@@ -1626,7 +1585,7 @@ def remove_linked_tree(path):
         kwargs["onerror"] = readonly_file_handler(ignore_errors=True)
 
     if os.path.exists(path):
-        if islink(path):
+        if os.path.islink(path):
             shutil.rmtree(os.path.realpath(path), **kwargs)
             os.unlink(path)
         else:
@@ -1793,14 +1752,9 @@ def find(root, files, recursive=True):
         files = [files]
 
     if recursive:
-        tty.debug(f"Find (recursive): {root} {str(files)}")
+        return _find_recursive(root, files)
-        result = _find_recursive(root, files)
     else:
-        tty.debug(f"Find (not recursive): {root} {str(files)}")
+        return _find_non_recursive(root, files)
-        result = _find_non_recursive(root, files)
-
-    tty.debug(f"Find complete: {root} {str(files)}")
-    return result
 
 
 @system_path_filter
@@ -1936,7 +1890,7 @@ class HeaderList(FileList):
     include_regex = re.compile(r"(.*?)(\binclude\b)(.*)")
 
     def __init__(self, files):
-        super().__init__(files)
+        super(HeaderList, self).__init__(files)
 
         self._macro_definitions = []
         self._directories = None
@@ -1962,7 +1916,7 @@ def _default_directories(self):
         """Default computation of directories based on the list of
         header files.
         """
-        dir_list = super().directories
+        dir_list = super(HeaderList, self).directories
         values = []
         for d in dir_list:
             # If the path contains a subdirectory named 'include' then stop
@@ -2398,7 +2352,7 @@ def find_all_libraries(root, recursive=False):
     )
 
 
-class WindowsSimulatedRPath:
+class WindowsSimulatedRPath(object):
     """Class representing Windows filesystem rpath analog
 
     One instance of this class is associated with a package (only on Windows)
@@ -2427,7 +2381,7 @@ def library_dependents(self):
         """
         Set of directories where package binaries/libraries are located.
         """
-        return set([pathlib.Path(self.pkg.prefix.bin)]) | self._additional_library_dependents
+        return set([self.pkg.prefix.bin]) | self._additional_library_dependents
 
     def add_library_dependent(self, *dest):
         """
@@ -2440,9 +2394,9 @@ def add_library_dependent(self, *dest):
         """
         for pth in dest:
             if os.path.isfile(pth):
-                self._additional_library_dependents.add(pathlib.Path(pth).parent)
+                self._additional_library_dependents.add(os.path.dirname)
             else:
-                self._additional_library_dependents.add(pathlib.Path(pth))
+                self._additional_library_dependents.add(pth)
 
     @property
     def rpaths(self):
@@ -2455,7 +2409,7 @@ def rpaths(self):
             dependent_libs.extend(list(find_all_shared_libraries(path, recursive=True)))
         for extra_path in self._addl_rpaths:
             dependent_libs.extend(list(find_all_shared_libraries(extra_path, recursive=True)))
-        return set([pathlib.Path(x) for x in dependent_libs])
+        return set(dependent_libs)
 
     def add_rpath(self, *paths):
         """
@@ -2471,7 +2425,7 @@ def add_rpath(self, *paths):
         """
         self._addl_rpaths = self._addl_rpaths | set(paths)
 
-    def _link(self, path: pathlib.Path, dest_dir: pathlib.Path):
+    def _link(self, path, dest_dir):
         """Perform link step of simulated rpathing, installing
         simlinks of file in path to the dest_dir
         location. This method deliberately prevents
@@ -2479,35 +2433,27 @@ def _link(self, path: pathlib.Path, dest_dir: pathlib.Path):
         This is because it is both meaningless from an rpath
         perspective, and will cause an error when Developer
         mode is not enabled"""
-
+        file_name = os.path.basename(path)
-        def report_already_linked():
+        dest_file = os.path.join(dest_dir, file_name)
-            # We have either already symlinked or we are encoutering a naming clash
+        if os.path.exists(dest_dir) and not dest_file == path:
-            # either way, we don't want to overwrite existing libraries
-            already_linked = islink(str(dest_file))
-            tty.debug(
-                "Linking library %s to %s failed, " % (str(path), str(dest_file))
-                + "already linked."
-                if already_linked
-                else "library with name %s already exists at location %s."
-                % (str(file_name), str(dest_dir))
-            )
-
-        file_name = path.name
-        dest_file = dest_dir / file_name
-        if not dest_file.exists() and dest_dir.exists() and not dest_file == path:
             try:
-                symlink(str(path), str(dest_file))
+                symlink(path, dest_file)
             # For py2 compatibility, we have to catch the specific Windows error code
             # associate with trying to create a file that already exists (winerror 183)
-            # Catch OSErrors missed by the SymlinkError checks
             except OSError as e:
                 if sys.platform == "win32" and (e.winerror == 183 or e.errno == errno.EEXIST):
-                    report_already_linked()
+                    # We have either already symlinked or we are encoutering a naming clash
+                    # either way, we don't want to overwrite existing libraries
+                    already_linked = islink(dest_file)
+                    tty.debug(
+                        "Linking library %s to %s failed, " % (path, dest_file) + "already linked."
+                        if already_linked
+                        else "library with name %s already exists at location %s."
+                        % (file_name, dest_dir)
+                    )
+                    pass
                 else:
                     raise e
-            # catch errors we raise ourselves from Spack
-            except llnl.util.symlink.AlreadyExistsError:
-                report_already_linked()
 
     def establish_link(self):
         """
@@ -2740,7 +2686,7 @@ def remove_directory_contents(dir):
     """Remove all contents of a directory."""
     if os.path.exists(dir):
         for entry in [os.path.join(dir, entry) for entry in os.listdir(dir)]:
-            if os.path.isfile(entry) or islink(entry):
+            if os.path.isfile(entry) or os.path.islink(entry):
                 os.unlink(entry)
             else:
                 shutil.rmtree(entry)

lib/spack/llnl/util/lang.py

@@ -3,6 +3,8 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from __future__ import division
+
 import collections.abc
 import contextlib
 import functools
@@ -766,10 +768,10 @@ def pretty_seconds(seconds):
 
 class RequiredAttributeError(ValueError):
     def __init__(self, message):
-        super().__init__(message)
+        super(RequiredAttributeError, self).__init__(message)
 
 
-class ObjectWrapper:
+class ObjectWrapper(object):
     """Base class that wraps an object. Derived classes can add new behavior
     while staying undercover.
 
@@ -796,7 +798,7 @@ def __init__(self, wrapped_object):
         self.__dict__ = wrapped_object.__dict__
 
 
-class Singleton:
+class Singleton(object):
     """Simple wrapper for lazily initialized singleton objects."""
 
     def __init__(self, factory):
@@ -821,7 +823,7 @@ def __getattr__(self, name):
         # 'instance'/'_instance' to be defined or it will enter an infinite
         # loop, so protect against that here.
         if name in ["_instance", "instance"]:
-            raise AttributeError(f"cannot create {name}")
+            raise AttributeError()
         return getattr(self.instance, name)
 
     def __getitem__(self, name):
@@ -843,6 +845,27 @@ def __repr__(self):
         return repr(self.instance)
 
 
+class LazyReference(object):
+    """Lazily evaluated reference to part of a singleton."""
+
+    def __init__(self, ref_function):
+        self.ref_function = ref_function
+
+    def __getattr__(self, name):
+        if name == "ref_function":
+            raise AttributeError()
+        return getattr(self.ref_function(), name)
+
+    def __getitem__(self, name):
+        return self.ref_function()[name]
+
+    def __str__(self):
+        return str(self.ref_function())
+
+    def __repr__(self):
+        return repr(self.ref_function())
+
+
 def load_module_from_file(module_name, module_path):
     """Loads a python module from the path of the corresponding file.
 
@@ -920,7 +943,7 @@ def _wrapper(args):
     return _wrapper
 
 
-class Devnull:
+class Devnull(object):
     """Null stream with less overhead than ``os.devnull``.
 
     See https://stackoverflow.com/a/2929954.
@@ -1037,7 +1060,7 @@ def __str__(self):
         return str(self.data)
 
 
-class GroupedExceptionHandler:
+class GroupedExceptionHandler(object):
     """A generic mechanism to coalesce multiple exceptions and preserve tracebacks."""
 
     def __init__(self):
@@ -1068,7 +1091,7 @@ def grouped_message(self, with_tracebacks: bool = True) -> str:
         return "due to the following failures:\n{0}".format("\n".join(each_exception_message))
 
 
-class GroupedExceptionForwarder:
+class GroupedExceptionForwarder(object):
     """A contextmanager to capture exceptions and forward them to a
     GroupedExceptionHandler."""
 
@@ -1088,7 +1111,7 @@ def __exit__(self, exc_type, exc_value, tb):
         return True
 
 
-class classproperty:
+class classproperty(object):
     """Non-data descriptor to evaluate a class-level property. The function that performs
     the evaluation is injected at creation time and take an instance (could be None) and
     an owner (i.e. the class that originated the instance)

lib/spack/llnl/util/link_tree.py

@@ -5,6 +5,8 @@
 
 """LinkTree class for setting up trees of symbolic links."""
 
+from __future__ import print_function
+
 import filecmp
 import os
 import shutil
@@ -285,7 +287,7 @@ def visit_symlinked_file(self, root, rel_path, depth):
         self.visit_file(root, rel_path, depth)
 
 
-class LinkTree:
+class LinkTree(object):
     """Class to create trees of symbolic links from a source directory.
 
     LinkTree objects are constructed with a source root.  Their
@@ -430,12 +432,12 @@ class MergeConflictError(Exception):
 
 class ConflictingSpecsError(MergeConflictError):
     def __init__(self, spec_1, spec_2):
-        super().__init__(spec_1, spec_2)
+        super(MergeConflictError, self).__init__(spec_1, spec_2)
 
 
 class SingleMergeConflictError(MergeConflictError):
     def __init__(self, path):
-        super().__init__("Package merge blocked by file: %s" % path)
+        super(MergeConflictError, self).__init__("Package merge blocked by file: %s" % path)
 
 
 class MergeConflictSummary(MergeConflictError):
@@ -450,4 +452,4 @@ def __init__(self, conflicts):
             msg += "\n    `{0}` and `{1}` both project to `{2}`".format(
                 conflict.src_a, conflict.src_b, conflict.dst
             )
-        super().__init__(msg)
+        super(MergeConflictSummary, self).__init__(msg)

lib/spack/llnl/util/lock.py

@@ -9,12 +9,11 @@
 import sys
 import time
 from datetime import datetime
-from types import TracebackType
-from typing import IO, Any, Callable, ContextManager, Dict, Generator, Optional, Tuple, Type, Union
 
-from llnl.util import lang, tty
+import llnl.util.tty as tty
+from llnl.util.lang import pretty_seconds
 
-from ..string import plural
+import spack.util.string
 
 if sys.platform != "win32":
     import fcntl
@@ -35,15 +34,12 @@
 ]
 
 
-ReleaseFnType = Optional[Callable[[], bool]]
+#: A useful replacement for functions that should return True when not provided
+#: for example.
+true_fn = lambda: True
 
 
-def true_fn() -> bool:
+class OpenFile(object):
-    """A function that always returns True."""
-    return True
-
-
-class OpenFile:
     """Record for keeping track of open lockfiles (with reference counting).
 
     There's really only one ``OpenFile`` per inode, per process, but we record the
@@ -52,12 +48,12 @@ class OpenFile:
     file descriptors as well in the future.
     """
 
-    def __init__(self, fh: IO) -> None:
+    def __init__(self, fh):
         self.fh = fh
         self.refs = 0
 
 
-class OpenFileTracker:
+class OpenFileTracker(object):
     """Track open lockfiles, to minimize number of open file descriptors.
 
     The ``fcntl`` locks that Spack uses are associated with an inode and a process.
@@ -82,11 +78,11 @@ class OpenFileTracker:
     work in Python and assume the GIL.
     """
 
-    def __init__(self) -> None:
+    def __init__(self):
         """Create a new ``OpenFileTracker``."""
-        self._descriptors: Dict[Any, OpenFile] = {}
+        self._descriptors = {}
 
-    def get_fh(self, path: str) -> IO:
+    def get_fh(self, path):
         """Get a filehandle for a lockfile.
 
         This routine will open writable files for read/write even if you're asking
@@ -94,7 +90,7 @@ def get_fh(self, path: str) -> IO:
         (write) lock later if requested.
 
         Arguments:
-          path: path to lock file we want a filehandle for
+          path (str): path to lock file we want a filehandle for
         """
         # Open writable files as 'r+' so we can upgrade to write later
         os_mode, fh_mode = (os.O_RDWR | os.O_CREAT), "r+"
@@ -143,7 +139,7 @@ def get_fh(self, path: str) -> IO:
     def release_by_stat(self, stat):
         key = (stat.st_dev, stat.st_ino, os.getpid())
         open_file = self._descriptors.get(key)
-        assert open_file, "Attempted to close non-existing inode: %s" % stat.st_ino
+        assert open_file, "Attempted to close non-existing inode: %s" % stat.st_inode
 
         open_file.refs -= 1
         if not open_file.refs:
@@ -161,7 +157,7 @@ def purge(self):
 
 #: Open file descriptors for locks in this process. Used to prevent one process
 #: from opening the sam file many times for different byte range locks
-FILE_TRACKER = OpenFileTracker()
+file_tracker = OpenFileTracker()
 
 
 def _attempts_str(wait_time, nattempts):
@@ -169,11 +165,11 @@ def _attempts_str(wait_time, nattempts):
     if nattempts <= 1:
         return ""
 
-    attempts = plural(nattempts, "attempt")
+    attempts = spack.util.string.plural(nattempts, "attempt")
-    return " after {} and {}".format(lang.pretty_seconds(wait_time), attempts)
+    return " after {} and {}".format(pretty_seconds(wait_time), attempts)
 
 
-class LockType:
+class LockType(object):
     READ = 0
     WRITE = 1
 
@@ -192,11 +188,11 @@ def to_module(tid):
         return lock
 
     @staticmethod
-    def is_valid(op: int) -> bool:
+    def is_valid(op):
         return op == LockType.READ or op == LockType.WRITE
 
 
-class Lock:
+class Lock(object):
     """This is an implementation of a filesystem lock using Python's lockf.
 
     In Python, ``lockf`` actually calls ``fcntl``, so this should work with
@@ -211,16 +207,7 @@ class Lock:
     overlapping byte ranges in the same file).
     """
 
-    def __init__(
+    def __init__(self, path, start=0, length=0, default_timeout=None, debug=False, desc=""):
-        self,
-        path: str,
-        *,
-        start: int = 0,
-        length: int = 0,
-        default_timeout: Optional[float] = None,
-        debug: bool = False,
-        desc: str = "",
-    ) -> None:
         """Construct a new lock on the file at ``path``.
 
         By default, the lock applies to the whole file.  Optionally,
@@ -233,17 +220,17 @@ def __init__(
         beginning of the file.
 
         Args:
-            path: path to the lock
+            path (str): path to the lock
-            start: optional byte offset at which the lock starts
+            start (int): optional byte offset at which the lock starts
-            length: optional number of bytes to lock
+            length (int): optional number of bytes to lock
-            default_timeout: seconds to wait for lock attempts,
+            default_timeout (int): number of seconds to wait for lock attempts,
                 where None means to wait indefinitely
-            debug: debug mode specific to locking
+            debug (bool): debug mode specific to locking
-            desc: optional debug message lock description, which is
+            desc (str): optional debug message lock description, which is
                 helpful for distinguishing between different Spack locks.
         """
         self.path = path
-        self._file: Optional[IO] = None
+        self._file = None
         self._reads = 0
         self._writes = 0
 
@@ -255,7 +242,7 @@ def __init__(
         self.debug = debug
 
         # optional debug description
-        self.desc = f" ({desc})" if desc else ""
+        self.desc = " ({0})".format(desc) if desc else ""
 
         # If the user doesn't set a default timeout, or if they choose
         # None, 0, etc. then lock attempts will not time out (unless the
@@ -263,15 +250,11 @@ def __init__(
         self.default_timeout = default_timeout or None
 
         # PID and host of lock holder (only used in debug mode)
-        self.pid: Optional[int] = None
+        self.pid = self.old_pid = None
-        self.old_pid: Optional[int] = None
+        self.host = self.old_host = None
-        self.host: Optional[str] = None
-        self.old_host: Optional[str] = None
 
     @staticmethod
-    def _poll_interval_generator(
+    def _poll_interval_generator(_wait_times=None):
-        _wait_times: Optional[Tuple[float, float, float]] = None
-    ) -> Generator[float, None, None]:
         """This implements a backoff scheme for polling a contended resource
         by suggesting a succession of wait times between polls.
 
@@ -294,21 +277,21 @@ def _poll_interval_generator(
             num_requests += 1
             yield wait_time
 
-    def __repr__(self) -> str:
+    def __repr__(self):
         """Formal representation of the lock."""
         rep = "{0}(".format(self.__class__.__name__)
         for attr, value in self.__dict__.items():
             rep += "{0}={1}, ".format(attr, value.__repr__())
         return "{0})".format(rep.strip(", "))
 
-    def __str__(self) -> str:
+    def __str__(self):
         """Readable string (with key fields) of the lock."""
         location = "{0}[{1}:{2}]".format(self.path, self._start, self._length)
         timeout = "timeout={0}".format(self.default_timeout)
         activity = "#reads={0}, #writes={1}".format(self._reads, self._writes)
         return "({0}, {1}, {2})".format(location, timeout, activity)
 
-    def _lock(self, op: int, timeout: Optional[float] = None) -> Tuple[float, int]:
+    def _lock(self, op, timeout=None):
         """This takes a lock using POSIX locks (``fcntl.lockf``).
 
         The lock is implemented as a spin lock using a nonblocking call
@@ -327,7 +310,7 @@ def _lock(self, op: int, timeout: Optional[float] = None) -> Tuple[float, int]:
         # Create file and parent directories if they don't exist.
         if self._file is None:
             self._ensure_parent_directory()
-            self._file = FILE_TRACKER.get_fh(self.path)
+            self._file = file_tracker.get_fh(self.path)
 
         if LockType.to_module(op) == fcntl.LOCK_EX and self._file.mode == "r":
             # Attempt to upgrade to write lock w/a read-only file.
@@ -336,7 +319,7 @@ def _lock(self, op: int, timeout: Optional[float] = None) -> Tuple[float, int]:
 
         self._log_debug(
             "{} locking [{}:{}]: timeout {}".format(
-                op_str.lower(), self._start, self._length, lang.pretty_seconds(timeout or 0)
+                op_str.lower(), self._start, self._length, pretty_seconds(timeout or 0)
             )
         )
 
@@ -360,20 +343,15 @@ def _lock(self, op: int, timeout: Optional[float] = None) -> Tuple[float, int]:
         total_wait_time = time.time() - start_time
         raise LockTimeoutError(op_str.lower(), self.path, total_wait_time, num_attempts)
 
-    def _poll_lock(self, op: int) -> bool:
+    def _poll_lock(self, op):
         """Attempt to acquire the lock in a non-blocking manner. Return whether
         the locking attempt succeeds
         """
-        assert self._file is not None, "cannot poll a lock without the file being set"
         module_op = LockType.to_module(op)
         try:
             # Try to get the lock (will raise if not available.)
             fcntl.lockf(
-                self._file.fileno(),
+                self._file, module_op | fcntl.LOCK_NB, self._length, self._start, os.SEEK_SET
-                module_op | fcntl.LOCK_NB,
-                self._length,
-                self._start,
-                os.SEEK_SET,
             )
 
             # help for debugging distributed locking
@@ -399,7 +377,7 @@ def _poll_lock(self, op: int) -> bool:
 
         return False
 
-    def _ensure_parent_directory(self) -> str:
+    def _ensure_parent_directory(self):
         parent = os.path.dirname(self.path)
 
         # relative paths to lockfiles in the current directory have no parent
@@ -418,22 +396,20 @@ def _ensure_parent_directory(self) -> str:
                 raise
         return parent
 
-    def _read_log_debug_data(self) -> None:
+    def _read_log_debug_data(self):
         """Read PID and host data out of the file if it is there."""
-        assert self._file is not None, "cannot read debug log without the file being set"
         self.old_pid = self.pid
         self.old_host = self.host
 
         line = self._file.read()
         if line:
             pid, host = line.strip().split(",")
-            _, _, pid = pid.rpartition("=")
+            _, _, self.pid = pid.rpartition("=")
             _, _, self.host = host.rpartition("=")
-            self.pid = int(pid)
+            self.pid = int(self.pid)
 
-    def _write_log_debug_data(self) -> None:
+    def _write_log_debug_data(self):
         """Write PID and host data to the file, recording old values."""
-        assert self._file is not None, "cannot write debug log without the file being set"
         self.old_pid = self.pid
         self.old_host = self.host
 
@@ -447,21 +423,20 @@ def _write_log_debug_data(self) -> None:
         self._file.flush()
         os.fsync(self._file.fileno())
 
-    def _unlock(self) -> None:
+    def _unlock(self):
         """Releases a lock using POSIX locks (``fcntl.lockf``)
 
         Releases the lock regardless of mode. Note that read locks may
         be masquerading as write locks, but this removes either.
 
         """
-        assert self._file is not None, "cannot unlock without the file being set"
+        fcntl.lockf(self._file, fcntl.LOCK_UN, self._length, self._start, os.SEEK_SET)
-        fcntl.lockf(self._file.fileno(), fcntl.LOCK_UN, self._length, self._start, os.SEEK_SET)
+        file_tracker.release_by_fh(self._file)
-        FILE_TRACKER.release_by_fh(self._file)
         self._file = None
         self._reads = 0
         self._writes = 0
 
-    def acquire_read(self, timeout: Optional[float] = None) -> bool:
+    def acquire_read(self, timeout=None):
         """Acquires a recursive, shared lock for reading.
 
         Read and write locks can be acquired and released in arbitrary
@@ -486,7 +461,7 @@ def acquire_read(self, timeout: Optional[float] = None) -> bool:
             self._reads += 1
             return False
 
-    def acquire_write(self, timeout: Optional[float] = None) -> bool:
+    def acquire_write(self, timeout=None):
         """Acquires a recursive, exclusive lock for writing.
 
         Read and write locks can be acquired and released in arbitrary
@@ -516,7 +491,7 @@ def acquire_write(self, timeout: Optional[float] = None) -> bool:
             self._writes += 1
             return False
 
-    def is_write_locked(self) -> bool:
+    def is_write_locked(self):
         """Check if the file is write locked
 
         Return:
@@ -533,7 +508,7 @@ def is_write_locked(self) -> bool:
 
         return False
 
-    def downgrade_write_to_read(self, timeout: Optional[float] = None) -> None:
+    def downgrade_write_to_read(self, timeout=None):
         """
         Downgrade from an exclusive write lock to a shared read.
 
@@ -552,7 +527,7 @@ def downgrade_write_to_read(self, timeout: Optional[float] = None) -> None:
         else:
             raise LockDowngradeError(self.path)
 
-    def upgrade_read_to_write(self, timeout: Optional[float] = None) -> None:
+    def upgrade_read_to_write(self, timeout=None):
         """
         Attempts to upgrade from a shared read lock to an exclusive write.
 
@@ -571,7 +546,7 @@ def upgrade_read_to_write(self, timeout: Optional[float] = None) -> None:
         else:
             raise LockUpgradeError(self.path)
 
-    def release_read(self, release_fn: ReleaseFnType = None) -> bool:
+    def release_read(self, release_fn=None):
         """Releases a read lock.
 
         Arguments:
@@ -607,7 +582,7 @@ def release_read(self, release_fn: ReleaseFnType = None) -> bool:
             self._reads -= 1
             return False
 
-    def release_write(self, release_fn: ReleaseFnType = None) -> bool:
+    def release_write(self, release_fn=None):
         """Releases a write lock.
 
         Arguments:
@@ -648,65 +623,65 @@ def release_write(self, release_fn: ReleaseFnType = None) -> bool:
             else:
                 return False
 
-    def cleanup(self) -> None:
+    def cleanup(self):
         if self._reads == 0 and self._writes == 0:
             os.unlink(self.path)
         else:
             raise LockError("Attempting to cleanup active lock.")
 
-    def _get_counts_desc(self) -> str:
+    def _get_counts_desc(self):
         return (
             "(reads {0}, writes {1})".format(self._reads, self._writes) if tty.is_verbose() else ""
         )
 
-    def _log_acquired(self, locktype, wait_time, nattempts) -> None:
+    def _log_acquired(self, locktype, wait_time, nattempts):
         attempts_part = _attempts_str(wait_time, nattempts)
         now = datetime.now()
         desc = "Acquired at %s" % now.strftime("%H:%M:%S.%f")
         self._log_debug(self._status_msg(locktype, "{0}{1}".format(desc, attempts_part)))
 
-    def _log_acquiring(self, locktype) -> None:
+    def _log_acquiring(self, locktype):
         self._log_debug(self._status_msg(locktype, "Acquiring"), level=3)
 
-    def _log_debug(self, *args, **kwargs) -> None:
+    def _log_debug(self, *args, **kwargs):
         """Output lock debug messages."""
         kwargs["level"] = kwargs.get("level", 2)
         tty.debug(*args, **kwargs)
 
-    def _log_downgraded(self, wait_time, nattempts) -> None:
+    def _log_downgraded(self, wait_time, nattempts):
         attempts_part = _attempts_str(wait_time, nattempts)
         now = datetime.now()
         desc = "Downgraded at %s" % now.strftime("%H:%M:%S.%f")
         self._log_debug(self._status_msg("READ LOCK", "{0}{1}".format(desc, attempts_part)))
 
-    def _log_downgrading(self) -> None:
+    def _log_downgrading(self):
         self._log_debug(self._status_msg("WRITE LOCK", "Downgrading"), level=3)
 
-    def _log_released(self, locktype) -> None:
+    def _log_released(self, locktype):
         now = datetime.now()
         desc = "Released at %s" % now.strftime("%H:%M:%S.%f")
         self._log_debug(self._status_msg(locktype, desc))
 
-    def _log_releasing(self, locktype) -> None:
+    def _log_releasing(self, locktype):
         self._log_debug(self._status_msg(locktype, "Releasing"), level=3)
 
-    def _log_upgraded(self, wait_time, nattempts) -> None:
+    def _log_upgraded(self, wait_time, nattempts):
         attempts_part = _attempts_str(wait_time, nattempts)
         now = datetime.now()
         desc = "Upgraded at %s" % now.strftime("%H:%M:%S.%f")
         self._log_debug(self._status_msg("WRITE LOCK", "{0}{1}".format(desc, attempts_part)))
 
-    def _log_upgrading(self) -> None:
+    def _log_upgrading(self):
         self._log_debug(self._status_msg("READ LOCK", "Upgrading"), level=3)
 
-    def _status_msg(self, locktype: str, status: str) -> str:
+    def _status_msg(self, locktype, status):
         status_desc = "[{0}] {1}".format(status, self._get_counts_desc())
         return "{0}{1.desc}: {1.path}[{1._start}:{1._length}] {2}".format(
             locktype, self, status_desc
         )
 
 
-class LockTransaction:
+class LockTransaction(object):
     """Simple nested transaction context manager that uses a file lock.
 
     Arguments:
@@ -734,13 +709,7 @@ class LockTransaction:
 
     """
 
-    def __init__(
+    def __init__(self, lock, acquire=None, release=None, timeout=None):
-        self,
-        lock: Lock,
-        acquire: Union[ReleaseFnType, ContextManager] = None,
-        release: Union[ReleaseFnType, ContextManager] = None,
-        timeout: Optional[float] = None,
-    ) -> None:
         self._lock = lock
         self._timeout = timeout
         self._acquire_fn = acquire
@@ -755,20 +724,15 @@ def __enter__(self):
             else:
                 return self._as
 
-    def __exit__(
+    def __exit__(self, type, value, traceback):
-        self,
-        exc_type: Optional[Type[BaseException]],
-        exc_value: Optional[BaseException],
-        traceback: Optional[TracebackType],
-    ) -> bool:
         suppress = False
 
         def release_fn():
             if self._release_fn is not None:
-                return self._release_fn(exc_type, exc_value, traceback)
+                return self._release_fn(type, value, traceback)
 
         if self._as and hasattr(self._as, "__exit__"):
-            if self._as.__exit__(exc_type, exc_value, traceback):
+            if self._as.__exit__(type, value, traceback):
                 suppress = True
 
         if self._exit(release_fn):
@@ -776,12 +740,6 @@ def release_fn():
 
         return suppress
 
-    def _enter(self) -> bool:
-        return NotImplemented
-
-    def _exit(self, release_fn: ReleaseFnType) -> bool:
-        return NotImplemented
-
 
 class ReadTransaction(LockTransaction):
     """LockTransaction context manager that does a read and releases it."""
@@ -812,7 +770,7 @@ class LockDowngradeError(LockError):
 
     def __init__(self, path):
         msg = "Cannot downgrade lock from write to read on file: %s" % path
-        super().__init__(msg)
+        super(LockDowngradeError, self).__init__(msg)
 
 
 class LockLimitError(LockError):
@@ -824,10 +782,10 @@ class LockTimeoutError(LockError):
 
     def __init__(self, lock_type, path, time, attempts):
         fmt = "Timed out waiting for a {} lock after {}.\n    Made {} {} on file: {}"
-        super().__init__(
+        super(LockTimeoutError, self).__init__(
             fmt.format(
                 lock_type,
-                lang.pretty_seconds(time),
+                pretty_seconds(time),
                 attempts,
                 "attempt" if attempts == 1 else "attempts",
                 path,
@@ -840,7 +798,7 @@ class LockUpgradeError(LockError):
 
     def __init__(self, path):
         msg = "Cannot upgrade lock from read to write on file: %s" % path
-        super().__init__(msg)
+        super(LockUpgradeError, self).__init__(msg)
 
 
 class LockPermissionError(LockError):
@@ -852,7 +810,7 @@ class LockROFileError(LockPermissionError):
 
     def __init__(self, path):
         msg = "Can't take write lock on read-only file: %s" % path
-        super().__init__(msg)
+        super(LockROFileError, self).__init__(msg)
 
 
 class CantCreateLockError(LockPermissionError):
@@ -861,4 +819,4 @@ class CantCreateLockError(LockPermissionError):
     def __init__(self, path):
         msg = "cannot create lock '%s': " % path
         msg += "file does not exist and location is not writable"
-        super().__init__(msg)
+        super(LockError, self).__init__(msg)

lib/spack/llnl/util/symlink.py

@@ -2,189 +2,77 @@
 # Spack Project Developers. See the top-level COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
+import errno
 import os
-import re
 import shutil
-import subprocess
 import sys
 import tempfile
+from os.path import exists, join
 
-from llnl.util import lang, tty
+from llnl.util import lang
-
-from ..path import system_path_filter
 
 if sys.platform == "win32":
     from win32file import CreateHardLink
 
-is_windows = sys.platform == "win32"
 
-
+def symlink(real_path, link_path):
-def symlink(source_path: str, link_path: str, allow_broken_symlinks: bool = not is_windows):
     """
-    Create a link.
+    Create a symbolic link.
 
-    On non-Windows and Windows with System Administrator
+    On Windows, use junctions if os.symlink fails.
-    privleges this will be a normal symbolic link via
-    os.symlink.
-
-    On Windows without privledges the link will be a
-    junction for a directory and a hardlink for a file.
-    On Windows the various link types are:
-
-    Symbolic Link: A link to a file or directory on the
-    same or different volume (drive letter) or even to
-    a remote file or directory (using UNC in its path).
-    Need System Administrator privileges to make these.
-
-    Hard Link: A link to a file on the same volume (drive
-    letter) only. Every file (file's data) has at least 1
-    hard link (file's name). But when this method creates
-    a new hard link there will be 2. Deleting all hard
-    links effectively deletes the file. Don't need System
-    Administrator privileges.
-
-    Junction: A link to a directory on the same or different
-    volume (drive letter) but not to a remote directory. Don't
-    need System Administrator privileges.
-
-    Parameters:
-        source_path (str): The real file or directory that the link points to.
-            Must be absolute OR relative to the link.
-        link_path (str): The path where the link will exist.
-        allow_broken_symlinks (bool): On Linux or Mac, don't raise an exception if the source_path
-            doesn't exist. This will still raise an exception on Windows.
     """
-    source_path = os.path.normpath(source_path)
+    if sys.platform != "win32":
-    win_source_path = source_path
+        os.symlink(real_path, link_path)
-    link_path = os.path.normpath(link_path)
+    elif _win32_can_symlink():
-
+        # Windows requires target_is_directory=True when the target is a dir.
-    # Never allow broken links on Windows.
+        os.symlink(real_path, link_path, target_is_directory=os.path.isdir(real_path))
-    if sys.platform == "win32" and allow_broken_symlinks:
-        raise ValueError("allow_broken_symlinks parameter cannot be True on Windows.")
-
-    if not allow_broken_symlinks:
-        # Perform basic checks to make sure symlinking will succeed
-        if os.path.lexists(link_path):
-            raise AlreadyExistsError(
-                f"Link path ({link_path}) already exists. Cannot create link."
-            )
-
-        if not os.path.exists(source_path):
-            if os.path.isabs(source_path) and not allow_broken_symlinks:
-                # An absolute source path that does not exist will result in a broken link.
-                raise SymlinkError(
-                    f"Source path ({source_path}) is absolute but does not exist. Resulting "
-                    f"link would be broken so not making link."
-                )
-            else:
-                # os.symlink can create a link when the given source path is relative to
-                # the link path. Emulate this behavior and check to see if the source exists
-                # relative to the link path ahead of link creation to prevent broken
-                # links from being made.
-                link_parent_dir = os.path.dirname(link_path)
-                relative_path = os.path.join(link_parent_dir, source_path)
-                if os.path.exists(relative_path):
-                    # In order to work on windows, the source path needs to be modified to be
-                    # relative because hardlink/junction dont resolve relative paths the same
-                    # way as os.symlink. This is ignored on other operating systems.
-                    win_source_path = relative_path
-                elif not allow_broken_symlinks:
-                    raise SymlinkError(
-                        f"The source path ({source_path}) is not relative to the link path "
-                        f"({link_path}). Resulting link would be broken so not making link."
-                    )
-
-    # Create the symlink
-    if sys.platform == "win32" and not _windows_can_symlink():
-        _windows_create_link(win_source_path, link_path)
     else:
-        os.symlink(source_path, link_path, target_is_directory=os.path.isdir(source_path))
+        try:
+            # Try to use junctions
+            _win32_junction(real_path, link_path)
+        except OSError as e:
+            if e.errno == errno.EEXIST:
+                # EEXIST error indicates that file we're trying to "link"
+                # is already present, don't bother trying to copy which will also fail
+                # just raise
+                raise
+            else:
+                # If all else fails, fall back to copying files
+                shutil.copyfile(real_path, link_path)
 
 
-def islink(path: str) -> bool:
+def islink(path):
-    """Override os.islink to give correct answer for spack logic.
+    return os.path.islink(path) or _win32_is_junction(path)
-
-    For Non-Windows: a link can be determined with the os.path.islink method.
-    Windows-only methods will return false for other operating systems.
-
-    For Windows: spack considers symlinks, hard links, and junctions to
-    all be links, so if any of those are True, return True.
-
-    Args:
-        path (str): path to check if it is a link.
-
-    Returns:
-         bool - whether the path is any kind link or not.
-    """
-    return any([os.path.islink(path), _windows_is_junction(path), _windows_is_hardlink(path)])
 
 
-def _windows_is_hardlink(path: str) -> bool:
+# '_win32' functions based on
-    """Determines if a path is a windows hard link. This is accomplished
+# https://github.com/Erotemic/ubelt/blob/master/ubelt/util_links.py
-    by looking at the number of links using os.stat. A non-hard-linked file
+def _win32_junction(path, link):
-    will have a st_nlink value of 1, whereas a hard link will have a value
+    # junctions require absolute paths
-    larger than 1. Note that both the original and hard-linked file will
+    if not os.path.isabs(link):
-    return True because they share the same inode.
+        link = os.path.abspath(link)
 
-    Args:
+    # os.symlink will fail if link exists, emulate the behavior here
-        path (str): Windows path to check for a hard link
+    if exists(link):
+        raise OSError(errno.EEXIST, "File  exists: %s -> %s" % (link, path))
 
-    Returns:
+    if not os.path.isabs(path):
-         bool - Whether the path is a hard link or not.
+        parent = os.path.join(link, os.pardir)
-    """
+        path = os.path.join(parent, path)
-    if sys.platform != "win32" or os.path.islink(path) or not os.path.exists(path):
+        path = os.path.abspath(path)
-        return False
 
-    return os.stat(path).st_nlink > 1
+    CreateHardLink(link, path)
-
-
-def _windows_is_junction(path: str) -> bool:
-    """Determines if a path is a windows junction. A junction can be
-    determined using a bitwise AND operation between the file's
-    attribute bitmask and the known junction bitmask (0x400).
-
-    Args:
-        path (str): A non-file path
-
-    Returns:
-        bool - whether the path is a junction or not.
-    """
-    if sys.platform != "win32" or os.path.islink(path) or os.path.isfile(path):
-        return False
-
-    import ctypes.wintypes
-
-    get_file_attributes = ctypes.windll.kernel32.GetFileAttributesW  # type: ignore[attr-defined]
-    get_file_attributes.argtypes = (ctypes.wintypes.LPWSTR,)
-    get_file_attributes.restype = ctypes.wintypes.DWORD
-
-    invalid_file_attributes = 0xFFFFFFFF
-    reparse_point = 0x400
-    file_attr = get_file_attributes(str(path))
-
-    if file_attr == invalid_file_attributes:
-        return False
-
-    return file_attr & reparse_point > 0
 
 
 @lang.memoized
-def _windows_can_symlink() -> bool:
+def _win32_can_symlink():
-    """
-    Determines if windows is able to make a symlink depending on
-    the system configuration and the level of the user's permissions.
-    """
-    if sys.platform != "win32":
-        tty.warn("windows_can_symlink method can't be used on non-Windows OS.")
-        return False
-
     tempdir = tempfile.mkdtemp()
 
-    dpath = os.path.join(tempdir, "dpath")
+    dpath = join(tempdir, "dpath")
-    fpath = os.path.join(tempdir, "fpath.txt")
+    fpath = join(tempdir, "fpath.txt")
 
-    dlink = os.path.join(tempdir, "dlink")
+    dlink = join(tempdir, "dlink")
-    flink = os.path.join(tempdir, "flink.txt")
+    flink = join(tempdir, "flink.txt")
 
     import llnl.util.filesystem as fs
 
@@ -208,140 +96,24 @@ def _windows_can_symlink() -> bool:
     return can_symlink_directories and can_symlink_files
 
 
-def _windows_create_link(source: str, link: str):
+def _win32_is_junction(path):
     """
-    Attempts to create a Hard Link or Junction as an alternative
+    Determines if a path is a win32 junction
-    to a symbolic link. This is called when symbolic links cannot
-    be created.
     """
-    if sys.platform != "win32":
+    if os.path.islink(path):
-        raise SymlinkError("windows_create_link method can't be used on non-Windows OS.")
+        return False
-    elif os.path.isdir(source):
-        _windows_create_junction(source=source, link=link)
-    elif os.path.isfile(source):
-        _windows_create_hard_link(path=source, link=link)
-    else:
-        raise SymlinkError(
-            f"Cannot create link from {source}. It is neither a file nor a directory."
-        )
 
+    if sys.platform == "win32":
+        import ctypes.wintypes
 
-def _windows_create_junction(source: str, link: str):
+        GetFileAttributes = ctypes.windll.kernel32.GetFileAttributesW
-    """Duly verify that the path and link are eligible to create a junction,
+        GetFileAttributes.argtypes = (ctypes.wintypes.LPWSTR,)
-    then create the junction.
+        GetFileAttributes.restype = ctypes.wintypes.DWORD
-    """
-    if sys.platform != "win32":
-        raise SymlinkError("windows_create_junction method can't be used on non-Windows OS.")
-    elif not os.path.exists(source):
-        raise SymlinkError("Source path does not exist, cannot create a junction.")
-    elif os.path.lexists(link):
-        raise AlreadyExistsError("Link path already exists, cannot create a junction.")
-    elif not os.path.isdir(source):
-        raise SymlinkError("Source path is not a directory, cannot create a junction.")
 
-    import subprocess
+        INVALID_FILE_ATTRIBUTES = 0xFFFFFFFF
+        FILE_ATTRIBUTE_REPARSE_POINT = 0x400
 
-    cmd = ["cmd", "/C", "mklink", "/J", link, source]
+        res = GetFileAttributes(path)
-    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        return res != INVALID_FILE_ATTRIBUTES and bool(res & FILE_ATTRIBUTE_REPARSE_POINT)
-    out, err = proc.communicate()
-    tty.debug(out.decode())
-    if proc.returncode != 0:
-        err = err.decode()
-        tty.error(err)
-        raise SymlinkError("Make junction command returned a non-zero return code.", err)
 
-
+    return False
-def _windows_create_hard_link(path: str, link: str):
-    """Duly verify that the path and link are eligible to create a hard
-    link, then create the hard link.
-    """
-    if sys.platform != "win32":
-        raise SymlinkError("windows_create_hard_link method can't be used on non-Windows OS.")
-    elif not os.path.exists(path):
-        raise SymlinkError(f"File path {path} does not exist. Cannot create hard link.")
-    elif os.path.lexists(link):
-        raise AlreadyExistsError(f"Link path ({link}) already exists. Cannot create hard link.")
-    elif not os.path.isfile(path):
-        raise SymlinkError(f"File path ({link}) is not a file. Cannot create hard link.")
-    else:
-        tty.debug(f"Creating hard link {link} pointing to {path}")
-        CreateHardLink(link, path)
-
-
-def readlink(path: str):
-    """Spack utility to override of os.readlink method to work cross platform"""
-    if _windows_is_hardlink(path):
-        return _windows_read_hard_link(path)
-    elif _windows_is_junction(path):
-        return _windows_read_junction(path)
-    else:
-        return os.readlink(path)
-
-
-def _windows_read_hard_link(link: str) -> str:
-    """Find all of the files that point to the same inode as the link"""
-    if sys.platform != "win32":
-        raise SymlinkError("Can't read hard link on non-Windows OS.")
-    link = os.path.abspath(link)
-    fsutil_cmd = ["fsutil", "hardlink", "list", link]
-    proc = subprocess.Popen(fsutil_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
-    out, err = proc.communicate()
-    if proc.returncode != 0:
-        raise SymlinkError(f"An error occurred while reading hard link: {err.decode()}")
-
-    # fsutil response does not include the drive name, so append it back to each linked file.
-    drive, link_tail = os.path.splitdrive(os.path.abspath(link))
-    links = set([os.path.join(drive, p) for p in out.decode().splitlines()])
-    links.remove(link)
-    if len(links) == 1:
-        return links.pop()
-    elif len(links) > 1:
-        # TODO: How best to handle the case where 3 or more paths point to a single inode?
-        raise SymlinkError(f"Found multiple paths pointing to the same inode {links}")
-    else:
-        raise SymlinkError("Cannot determine hard link source path.")
-
-
-def _windows_read_junction(link: str):
-    """Find the path that a junction points to."""
-    if sys.platform != "win32":
-        raise SymlinkError("Can't read junction on non-Windows OS.")
-
-    link = os.path.abspath(link)
-    link_basename = os.path.basename(link)
-    link_parent = os.path.dirname(link)
-    fsutil_cmd = ["dir", "/a:l", link_parent]
-    proc = subprocess.Popen(fsutil_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
-    out, err = proc.communicate()
-    if proc.returncode != 0:
-        raise SymlinkError(f"An error occurred while reading junction: {err.decode()}")
-    matches = re.search(rf"<JUNCTION>\s+{link_basename} \[(.*)]", out.decode())
-    if matches:
-        return matches.group(1)
-    else:
-        raise SymlinkError("Could not find junction path.")
-
-
-@system_path_filter
-def resolve_link_target_relative_to_the_link(link):
-    """
-    os.path.isdir uses os.path.exists, which for links will check
-    the existence of the link target. If the link target is relative to
-    the link, we need to construct a pathname that is valid from
-    our cwd (which may not be the same as the link's directory)
-    """
-    target = readlink(link)
-    if os.path.isabs(target):
-        return target
-    link_dir = os.path.dirname(os.path.abspath(link))
-    return os.path.join(link_dir, target)
-
-
-class SymlinkError(RuntimeError):
-    """Exception class for errors raised while creating symlinks,
-    junctions and hard links
-    """
-
-
-class AlreadyExistsError(SymlinkError):
-    """Link path already exists."""

lib/spack/llnl/util/tty/__init__.py

@@ -3,6 +3,8 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from __future__ import unicode_literals
+
 import contextlib
 import io
 import os
@@ -12,7 +14,6 @@
 import traceback
 from datetime import datetime
 from sys import platform as _platform
-from typing import NoReturn
 
 if _platform != "win32":
     import fcntl
@@ -245,7 +246,7 @@ def warn(message, *args, **kwargs):
     info("Warning: " + str(message), *args, **kwargs)
 
 
-def die(message, *args, **kwargs) -> NoReturn:
+def die(message, *args, **kwargs):
     kwargs.setdefault("countback", 4)
     error(message, *args, **kwargs)
     sys.exit(1)

lib/spack/llnl/util/tty/colify.py

@@ -6,6 +6,8 @@
 """
 Routines for printing columnar output.  See ``colify()`` for more information.
 """
+from __future__ import division, unicode_literals
+
 import io
 import os
 import sys

lib/spack/llnl/util/tty/color.py

@@ -59,6 +59,8 @@
 
 To output an @, use '@@'.  To output a } inside braces, use '}}'.
 """
+from __future__ import unicode_literals
+
 import re
 import sys
 from contextlib import contextmanager
@@ -68,7 +70,7 @@ class ColorParseError(Exception):
     """Raised when a color format fails to parse."""
 
     def __init__(self, message):
-        super().__init__(message)
+        super(ColorParseError, self).__init__(message)
 
 
 # Text styles for ansi codes
@@ -203,7 +205,7 @@ def color_when(value):
     set_color_when(old_value)
 
 
-class match_to_ansi:
+class match_to_ansi(object):
     def __init__(self, color=True, enclose=False):
         self.color = _color_when_value(color)
         self.enclose = enclose
@@ -319,7 +321,7 @@ def cescape(string):
     return string
 
 
-class ColorStream:
+class ColorStream(object):
     def __init__(self, stream, color=None):
         self._stream = stream
         self._color = color

lib/spack/llnl/util/tty/log.py

@@ -5,6 +5,8 @@
 
 """Utility classes for logging the output of blocks of code.
 """
+from __future__ import unicode_literals
+
 import atexit
 import ctypes
 import errno
@@ -65,7 +67,7 @@ def _strip(line):
     return _escape.sub("", line)
 
 
-class keyboard_input:
+class keyboard_input(object):
     """Context manager to disable line editing and echoing.
 
     Use this with ``sys.stdin`` for keyboard input, e.g.::
@@ -242,7 +244,7 @@ def __exit__(self, exc_type, exception, traceback):
                 signal.signal(signum, old_handler)
 
 
-class Unbuffered:
+class Unbuffered(object):
     """Wrapper for Python streams that forces them to be unbuffered.
 
     This is implemented by forcing a flush after each write.
@@ -287,7 +289,7 @@ def _file_descriptors_work(*streams):
         return False
 
 
-class FileWrapper:
+class FileWrapper(object):
     """Represents a file. Can be an open stream, a path to a file (not opened
     yet), or neither. When unwrapped, it returns an open file (or file-like)
     object.
@@ -329,7 +331,7 @@ def close(self):
             self.file.close()
 
 
-class MultiProcessFd:
+class MultiProcessFd(object):
     """Return an object which stores a file descriptor and can be passed as an
     argument to a function run with ``multiprocessing.Process``, such that
     the file descriptor is available in the subprocess."""
@@ -429,7 +431,7 @@ def log_output(*args, **kwargs):
         return nixlog(*args, **kwargs)
 
 
-class nixlog:
+class nixlog(object):
     """
     Under the hood, we spawn a daemon and set up a pipe between this
     process and the daemon.  The daemon writes our output to both the
@@ -750,7 +752,7 @@ def close(self):
                 os.close(self.saved_stream)
 
 
-class winlog:
+class winlog(object):
     """
     Similar to nixlog, with underlying
     functionality ported to support Windows.
@@ -780,7 +782,7 @@ def __enter__(self):
             raise RuntimeError("file argument must be set by __init__ ")
 
         # Open both write and reading on logfile
-        if isinstance(self.logfile, io.StringIO):
+        if type(self.logfile) == io.StringIO:
             self._ioflag = True
             # cannot have two streams on tempfile, so we must make our own
             sys.stdout = self.logfile

lib/spack/llnl/util/tty/pty.py

@@ -13,6 +13,8 @@
 
 Note: The functionality in this module is unsupported on Windows
 """
+from __future__ import print_function
+
 import multiprocessing
 import os
 import re
@@ -34,7 +36,7 @@
     pass
 
 
-class ProcessController:
+class ProcessController(object):
     """Wrapper around some fundamental process control operations.
 
     This allows one process (the controller) to drive another (the
@@ -155,7 +157,7 @@ def wait_running(self):
         self.wait(lambda: "T" not in self.proc_status())
 
 
-class PseudoShell:
+class PseudoShell(object):
     """Sets up controller and minion processes with a PTY.
 
     You can create a ``PseudoShell`` if you want to test how some

lib/spack/spack/abi.py

@@ -13,7 +13,7 @@
 from spack.util.executable import Executable, ProcessError
 
 
-class ABI:
+class ABI(object):
     """This class provides methods to test ABI compatibility between specs.
     The current implementation is rather rough and could be improved."""
 

lib/spack/spack/audit.py

@@ -38,13 +38,10 @@ def _search_duplicate_compilers(error_cls):
 import ast
 import collections
 import collections.abc
-import glob
 import inspect
 import itertools
-import pathlib
 import pickle
 import re
-import warnings
 from urllib.request import urlopen
 
 import llnl.util.lang
@@ -63,7 +60,7 @@ def _search_duplicate_compilers(error_cls):
 GROUPS = collections.defaultdict(list)
 
 
-class Error:
+class Error(object):
     """Information on an error reported in a test."""
 
     def __init__(self, summary, details):
@@ -289,7 +286,7 @@ def _check_build_test_callbacks(pkgs, error_cls):
     """Ensure stand-alone test method is not included in build-time callbacks"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         test_callbacks = getattr(pkg_cls, "build_time_test_callbacks", None)
 
         # TODO (post-34236): "test*"->"test_*" once remove deprecated methods
@@ -315,7 +312,7 @@ def _check_patch_urls(pkgs, error_cls):
 
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         for condition, patches in pkg_cls.patches.items():
             for patch in patches:
                 if not isinstance(patch, spack.patch.UrlPatch):
@@ -345,7 +342,7 @@ def _search_for_reserved_attributes_names_in_packages(pkgs, error_cls):
     errors = []
     for pkg_name in pkgs:
         name_definitions = collections.defaultdict(list)
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
 
         for cls_item in inspect.getmro(pkg_cls):
             for name in RESERVED_NAMES:
@@ -386,7 +383,7 @@ def _ensure_packages_are_pickeleable(pkgs, error_cls):
     """Ensure that package objects are pickleable"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         pkg = pkg_cls(spack.spec.Spec(pkg_name))
         try:
             pickle.dumps(pkg)
@@ -427,7 +424,7 @@ def _ensure_all_versions_can_produce_a_fetcher(pkgs, error_cls):
     """Ensure all versions in a package can produce a fetcher"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         pkg = pkg_cls(spack.spec.Spec(pkg_name))
         try:
             spack.fetch_strategy.check_pkg_attributes(pkg)
@@ -452,7 +449,7 @@ def _ensure_docstring_and_no_fixme(pkgs, error_cls):
     ]
     for pkg_name in pkgs:
         details = []
-        filename = spack.repo.PATH.filename_for_package_name(pkg_name)
+        filename = spack.repo.path.filename_for_package_name(pkg_name)
         with open(filename, "r") as package_file:
             for i, line in enumerate(package_file):
                 pattern = next((r for r in fixme_regexes if r.search(line)), None)
@@ -464,7 +461,7 @@ def _ensure_docstring_and_no_fixme(pkgs, error_cls):
             error_msg = "Package '{}' contains boilerplate that need to be removed"
             errors.append(error_cls(error_msg.format(pkg_name), details))
 
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         if not pkg_cls.__doc__:
             error_msg = "Package '{}' miss a docstring"
             errors.append(error_cls(error_msg.format(pkg_name), []))
@@ -477,7 +474,7 @@ def _ensure_all_packages_use_sha256_checksums(pkgs, error_cls):
     """Ensure no packages use md5 checksums"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         if pkg_cls.manual_download:
             continue
 
@@ -514,7 +511,7 @@ def _ensure_env_methods_are_ported_to_builders(pkgs, error_cls):
     """Ensure that methods modifying the build environment are ported to builder classes."""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         buildsystem_variant, _ = pkg_cls.variants["build_system"]
         buildsystem_names = [getattr(x, "value", x) for x in buildsystem_variant.values]
         builder_cls_names = [spack.builder.BUILDER_CLS[x].__name__ for x in buildsystem_names]
@@ -541,7 +538,7 @@ def _linting_package_file(pkgs, error_cls):
     """Check for correctness of links"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
 
         # Does the homepage have http, and if so, does https work?
         if pkg_cls.homepage.startswith("http://"):
@@ -565,7 +562,7 @@ def _unknown_variants_in_directives(pkgs, error_cls):
     """Report unknown or wrong variants in directives for this package"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
 
         # Check "conflicts" directive
         for conflict, triggers in pkg_cls.conflicts.items():
@@ -631,15 +628,15 @@ def _unknown_variants_in_dependencies(pkgs, error_cls):
     """Report unknown dependencies and wrong variants for dependencies"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
-        filename = spack.repo.PATH.filename_for_package_name(pkg_name)
+        filename = spack.repo.path.filename_for_package_name(pkg_name)
         for dependency_name, dependency_data in pkg_cls.dependencies.items():
             # No need to analyze virtual packages
-            if spack.repo.PATH.is_virtual(dependency_name):
+            if spack.repo.path.is_virtual(dependency_name):
                 continue
 
             try:
-                dependency_pkg_cls = spack.repo.PATH.get_pkg_class(dependency_name)
+                dependency_pkg_cls = spack.repo.path.get_pkg_class(dependency_name)
             except spack.repo.UnknownPackageError:
                 # This dependency is completely missing, so report
                 # and continue the analysis
@@ -678,7 +675,7 @@ def _ensure_variant_defaults_are_parsable(pkgs, error_cls):
     """Ensures that variant defaults are present and parsable from cli"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
         for variant_name, entry in pkg_cls.variants.items():
             variant, _ = entry
             default_is_parsable = (
@@ -712,53 +709,27 @@ def _ensure_variant_defaults_are_parsable(pkgs, error_cls):
     return errors
 
 
-@package_directives
-def _ensure_variants_have_descriptions(pkgs, error_cls):
-    """Ensures that all variants have a description."""
-    errors = []
-    for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
-        for variant_name, entry in pkg_cls.variants.items():
-            variant, _ = entry
-            if not variant.description:
-                error_msg = "Variant '{}' in package '{}' is missing a description"
-                errors.append(error_cls(error_msg.format(variant_name, pkg_name), []))
-
-    return errors
-
-
 @package_directives
 def _version_constraints_are_satisfiable_by_some_version_in_repo(pkgs, error_cls):
     """Report if version constraints used in directives are not satisfiable"""
     errors = []
     for pkg_name in pkgs:
-        pkg_cls = spack.repo.PATH.get_pkg_class(pkg_name)
+        pkg_cls = spack.repo.path.get_pkg_class(pkg_name)
-        filename = spack.repo.PATH.filename_for_package_name(pkg_name)
+        filename = spack.repo.path.filename_for_package_name(pkg_name)
         dependencies_to_check = []
         for dependency_name, dependency_data in pkg_cls.dependencies.items():
             # Skip virtual dependencies for the time being, check on
             # their versions can be added later
-            if spack.repo.PATH.is_virtual(dependency_name):
+            if spack.repo.path.is_virtual(dependency_name):
                 continue
 
             dependencies_to_check.extend([edge.spec for edge in dependency_data.values()])
 
-        host_architecture = spack.spec.ArchSpec.default_arch()
         for s in dependencies_to_check:
             dependency_pkg_cls = None
             try:
-                dependency_pkg_cls = spack.repo.PATH.get_pkg_class(s.name)
+                dependency_pkg_cls = spack.repo.path.get_pkg_class(s.name)
-                # Some packages have hacks that might cause failures on some platform
+                assert any(v.intersects(s.versions) for v in list(dependency_pkg_cls.versions))
-                # Allow to explicitly set conditions to skip version checks in that case
-                skip_conditions = getattr(dependency_pkg_cls, "skip_version_audit", [])
-                skip_version_check = False
-                for condition in skip_conditions:
-                    if host_architecture.satisfies(spack.spec.Spec(condition).architecture):
-                        skip_version_check = True
-                        break
-                assert skip_version_check or any(
-                    v.intersects(s.versions) for v in list(dependency_pkg_cls.versions)
-                )
             except Exception:
                 summary = (
                     "{0}: dependency on {1} cannot be satisfied " "by known versions of {1.name}"
@@ -790,7 +761,7 @@ def _analyze_variants_in_directive(pkg, constraint, directive, error_cls):
         except variant_exceptions as e:
             summary = pkg.name + ': wrong variant in "{0}" directive'
             summary = summary.format(directive)
-            filename = spack.repo.PATH.filename_for_package_name(pkg.name)
+            filename = spack.repo.path.filename_for_package_name(pkg.name)
 
             error_msg = str(e).strip()
             if isinstance(e, KeyError):
@@ -801,76 +772,3 @@ def _analyze_variants_in_directive(pkg, constraint, directive, error_cls):
             errors.append(err)
 
     return errors
-
-
-#: Sanity checks on package directives
-external_detection = AuditClass(
-    group="externals",
-    tag="PKG-EXTERNALS",
-    description="Sanity checks for external software detection",
-    kwargs=("pkgs",),
-)
-
-
-def packages_with_detection_tests():
-    """Return the list of packages with a corresponding detection_test.yaml file."""
-    import spack.config
-    import spack.util.path
-
-    to_be_tested = []
-    for current_repo in spack.repo.PATH.repos:
-        namespace = current_repo.namespace
-        packages_dir = pathlib.PurePath(current_repo.packages_path)
-        pattern = packages_dir / "**" / "detection_test.yaml"
-        pkgs_with_tests = [
-            f"{namespace}.{str(pathlib.PurePath(x).parent.name)}" for x in glob.glob(str(pattern))
-        ]
-        to_be_tested.extend(pkgs_with_tests)
-
-    return to_be_tested
-
-
-@external_detection
-def _test_detection_by_executable(pkgs, error_cls):
-    """Test drive external detection for packages"""
-    import spack.detection
-
-    errors = []
-
-    # Filter the packages and retain only the ones with detection tests
-    pkgs_with_tests = packages_with_detection_tests()
-    selected_pkgs = []
-    for current_package in pkgs_with_tests:
-        _, unqualified_name = spack.repo.partition_package_name(current_package)
-        # Check for both unqualified name and qualified name
-        if unqualified_name in pkgs or current_package in pkgs:
-            selected_pkgs.append(current_package)
-    selected_pkgs.sort()
-
-    if not selected_pkgs:
-        summary = "No detection test to run"
-        details = [f'  "{p}" has no detection test' for p in pkgs]
-        warnings.warn("\n".join([summary] + details))
-        return errors
-
-    for pkg_name in selected_pkgs:
-        for idx, test_runner in enumerate(
-            spack.detection.detection_tests(pkg_name, spack.repo.PATH)
-        ):
-            specs = test_runner.execute()
-            expected_specs = test_runner.expected_specs
-
-            not_detected = set(expected_specs) - set(specs)
-            if not_detected:
-                summary = pkg_name + ": cannot detect some specs"
-                details = [f'"{s}" was not detected [test_id={idx}]' for s in sorted(not_detected)]
-                errors.append(error_cls(summary=summary, details=details))
-
-            not_expected = set(specs) - set(expected_specs)
-            if not_expected:
-                summary = pkg_name + ": detected unexpected specs"
-                msg = '"{0}" was detected, but was not expected [test_id={1}]'
-                details = [msg.format(s, idx) for s in sorted(not_expected)]
-                errors.append(error_cls(summary=summary, details=details))
-
-    return errors

lib/spack/spack/binary_distribution.py

@@ -9,6 +9,7 @@
 import io
 import itertools
 import json
+import multiprocessing.pool
 import os
 import re
 import shutil
@@ -23,7 +24,7 @@
 import warnings
 from contextlib import closing, contextmanager
 from gzip import GzipFile
-from typing import Dict, List, NamedTuple, Optional, Tuple, Union
+from typing import List, NamedTuple, Optional, Union
 from urllib.error import HTTPError, URLError
 
 import llnl.util.filesystem as fsys
@@ -34,7 +35,6 @@
 import spack.cmd
 import spack.config as config
 import spack.database as spack_db
-import spack.error
 import spack.hooks
 import spack.hooks.sbang
 import spack.mirror
@@ -49,11 +49,9 @@
 import spack.util.gpg
 import spack.util.spack_json as sjson
 import spack.util.spack_yaml as syaml
-import spack.util.timer as timer
 import spack.util.url as url_util
 import spack.util.web as web_util
 from spack.caches import misc_cache_location
-from spack.package_prefs import get_package_dir_permissions, get_package_group
 from spack.relocate_text import utf8_paths_to_single_binary_regex
 from spack.spec import Spec
 from spack.stage import Stage
@@ -63,22 +61,6 @@
 _build_cache_keys_relative_path = "_pgp"
 
 
-class BuildCacheDatabase(spack_db.Database):
-    """A database for binary buildcaches.
-
-    A database supports writing buildcache index files, in which case certain fields are not
-    needed in each install record, and no locking is required. To use this feature, it provides
-    ``lock_cfg=NO_LOCK``, and override the list of ``record_fields``.
-    """
-
-    record_fields = ("spec", "ref_count", "in_buildcache")
-
-    def __init__(self, root):
-        super().__init__(root, lock_cfg=spack_db.NO_LOCK)
-        self._write_transaction_impl = llnl.util.lang.nullcontext
-        self._read_transaction_impl = llnl.util.lang.nullcontext
-
-
 class FetchCacheError(Exception):
     """Error thrown when fetching the cache failed, usually a composite error list."""
 
@@ -98,14 +80,14 @@ def __init__(self, errors):
         else:
             err = errors[0]
             self.message = "{0}: {1}".format(err.__class__.__name__, str(err))
-        super().__init__(self.message)
+        super(FetchCacheError, self).__init__(self.message)
 
 
 class ListMirrorSpecsError(spack.error.SpackError):
     """Raised when unable to retrieve list of specs from the mirror"""
 
 
-class BinaryCacheIndex:
+class BinaryCacheIndex(object):
     """
     The BinaryCacheIndex tracks what specs are available on (usually remote)
     binary caches.
@@ -208,7 +190,8 @@ def _associate_built_specs_with_mirror(self, cache_key, mirror_url):
         tmpdir = tempfile.mkdtemp()
 
         try:
-            db = BuildCacheDatabase(tmpdir)
+            db_root_dir = os.path.join(tmpdir, "db_root")
+            db = spack_db.Database(None, db_dir=db_root_dir, enable_transaction_locking=False)
 
             try:
                 self._index_file_cache.init_entry(cache_key)
@@ -216,11 +199,11 @@ def _associate_built_specs_with_mirror(self, cache_key, mirror_url):
                 with self._index_file_cache.read_transaction(cache_key):
                     db._read_from_file(cache_path)
             except spack_db.InvalidDatabaseVersionError as e:
-                tty.warn(
+                msg = (
                     f"you need a newer Spack version to read the buildcache index for the "
                     f"following mirror: '{mirror_url}'. {e.database_version_message}"
                 )
-                return
+                raise BuildcacheIndexError(msg) from e
 
             spec_list = db.query_local(installed=False, in_buildcache=True)
 
@@ -334,9 +317,9 @@ def update(self, with_cooldown=False):
         from each configured mirror and stored locally (both in memory and
         on disk under ``_index_cache_root``)."""
         self._init_local_index_cache()
-        configured_mirror_urls = [
+
-            m.fetch_url for m in spack.mirror.MirrorCollection(binary=True).values()
+        mirrors = spack.mirror.MirrorCollection()
-        ]
+        configured_mirror_urls = [m.fetch_url for m in mirrors.values()]
         items_to_remove = []
         spec_cache_clear_needed = False
         spec_cache_regenerate_needed = not self._mirrors_for_spec
@@ -534,7 +517,9 @@ class NoOverwriteException(spack.error.SpackError):
     """Raised when a file would be overwritten"""
 
     def __init__(self, file_path):
-        super().__init__(f"Refusing to overwrite the following file: {file_path}")
+        super(NoOverwriteException, self).__init__(
+            f"Refusing to overwrite the following file: {file_path}"
+        )
 
 
 class NoGpgException(spack.error.SpackError):
@@ -543,7 +528,7 @@ class NoGpgException(spack.error.SpackError):
     """
 
     def __init__(self, msg):
-        super().__init__(msg)
+        super(NoGpgException, self).__init__(msg)
 
 
 class NoKeyException(spack.error.SpackError):
@@ -552,7 +537,7 @@ class NoKeyException(spack.error.SpackError):
     """
 
     def __init__(self, msg):
-        super().__init__(msg)
+        super(NoKeyException, self).__init__(msg)
 
 
 class PickKeyException(spack.error.SpackError):
@@ -563,7 +548,7 @@ class PickKeyException(spack.error.SpackError):
     def __init__(self, keys):
         err_msg = "Multiple keys available for signing\n%s\n" % keys
         err_msg += "Use spack buildcache create -k <key hash> to pick a key."
-        super().__init__(err_msg)
+        super(PickKeyException, self).__init__(err_msg)
 
 
 class NoVerifyException(spack.error.SpackError):
@@ -580,7 +565,7 @@ class NoChecksumException(spack.error.SpackError):
     """
 
     def __init__(self, path, size, contents, algorithm, expected, computed):
-        super().__init__(
+        super(NoChecksumException, self).__init__(
             f"{algorithm} checksum failed for {path}",
             f"Expected {expected} but got {computed}. "
             f"File size = {size} bytes. Contents = {contents!r}",
@@ -593,7 +578,7 @@ class NewLayoutException(spack.error.SpackError):
     """
 
     def __init__(self, msg):
-        super().__init__(msg)
+        super(NewLayoutException, self).__init__(msg)
 
 
 class UnsignedPackageException(spack.error.SpackError):
@@ -625,7 +610,8 @@ def buildinfo_file_name(prefix):
     """
     Filename of the binary package meta-data file
     """
-    return os.path.join(prefix, ".spack/binary_distribution")
+    name = os.path.join(prefix, ".spack/binary_distribution")
+    return name
 
 
 def read_buildinfo_file(prefix):
@@ -646,7 +632,8 @@ class BuildManifestVisitor(BaseDirectoryVisitor):
     directories."""
 
     def __init__(self):
-        # Save unique identifiers of hardlinks to avoid relocating them multiple times
+        # Save unique identifiers of files to avoid
+        # relocating hardlink files for each path.
         self.visited = set()
 
         # Lists of files we will check
@@ -655,8 +642,6 @@ def __init__(self):
 
     def seen_before(self, root, rel_path):
         stat_result = os.lstat(os.path.join(root, rel_path))
-        if stat_result.st_nlink == 1:
-            return False
         identifier = (stat_result.st_dev, stat_result.st_ino)
         if identifier in self.visited:
             return True
@@ -720,7 +705,7 @@ def get_buildfile_manifest(spec):
     # look for them to decide if text file needs to be relocated or not
     prefixes = [d.prefix for d in spec.traverse(root=True, deptype="all") if not d.external]
     prefixes.append(spack.hooks.sbang.sbang_install_path())
-    prefixes.append(str(spack.store.STORE.layout.root))
+    prefixes.append(str(spack.store.layout.root))
 
     # Create a giant regex that matches all prefixes
     regex = utf8_paths_to_single_binary_regex(prefixes)
@@ -733,7 +718,7 @@ def get_buildfile_manifest(spec):
     for rel_path in visitor.symlinks:
         abs_path = os.path.join(root, rel_path)
         link = os.readlink(abs_path)
-        if os.path.isabs(link) and link.startswith(spack.store.STORE.layout.root):
+        if os.path.isabs(link) and link.startswith(spack.store.layout.root):
             data["link_to_relocate"].append(rel_path)
 
     # Non-symlinks.
@@ -775,15 +760,16 @@ def hashes_to_prefixes(spec):
     }
 
 
-def get_buildinfo_dict(spec):
+def get_buildinfo_dict(spec, rel=False):
     """Create metadata for a tarball"""
     manifest = get_buildfile_manifest(spec)
 
     return {
         "sbang_install_path": spack.hooks.sbang.sbang_install_path(),
-        "buildpath": spack.store.STORE.layout.root,
+        "relative_rpaths": rel,
+        "buildpath": spack.store.layout.root,
         "spackprefix": spack.paths.prefix,
-        "relative_prefix": os.path.relpath(spec.prefix, spack.store.STORE.layout.root),
+        "relative_prefix": os.path.relpath(spec.prefix, spack.store.layout.root),
         "relocate_textfiles": manifest["text_to_relocate"],
         "relocate_binaries": manifest["binary_to_relocate"],
         "relocate_links": manifest["link_to_relocate"],
@@ -877,18 +863,32 @@ def _read_specs_and_push_index(file_list, read_method, cache_prefix, db, temp_di
         db: A spack database used for adding specs and then writing the index.
         temp_dir (str): Location to write index.json and hash for pushing
         concurrency (int): Number of parallel processes to use when fetching
-    """
-    for file in file_list:
-        contents = read_method(file)
-        # Need full spec.json name or this gets confused with index.json.
-        if file.endswith(".json.sig"):
-            specfile_json = Spec.extract_json_from_clearsig(contents)
-            fetched_spec = Spec.from_dict(specfile_json)
-        elif file.endswith(".json"):
-            fetched_spec = Spec.from_json(contents)
-        else:
-            continue
 
+    Return:
+        None
+    """
+
+    def _fetch_spec_from_mirror(spec_url):
+        spec_file_contents = read_method(spec_url)
+
+        if spec_file_contents:
+            # Need full spec.json name or this gets confused with index.json.
+            if spec_url.endswith(".json.sig"):
+                specfile_json = Spec.extract_json_from_clearsig(spec_file_contents)
+                return Spec.from_dict(specfile_json)
+            if spec_url.endswith(".json"):
+                return Spec.from_json(spec_file_contents)
+
+    tp = multiprocessing.pool.ThreadPool(processes=concurrency)
+    try:
+        fetched_specs = tp.map(
+            llnl.util.lang.star(_fetch_spec_from_mirror), [(f,) for f in file_list]
+        )
+    finally:
+        tp.terminate()
+        tp.join()
+
+    for fetched_spec in fetched_specs:
         db.add(fetched_spec, None)
         db.mark(fetched_spec, "in_buildcache", True)
 
@@ -1062,10 +1062,13 @@ def generate_package_index(cache_prefix, concurrency=32):
     tty.debug("Retrieving spec descriptor files from {0} to build index".format(cache_prefix))
 
     tmpdir = tempfile.mkdtemp()
-
+    db_root_dir = os.path.join(tmpdir, "db_root")
-    db = BuildCacheDatabase(tmpdir)
+    db = spack_db.Database(
-    db.root = None
+        None,
-    db_root_dir = db.database_directory
+        db_dir=db_root_dir,
+        enable_transaction_locking=False,
+        record_fields=["spec", "ref_count", "in_buildcache"],
+    )
 
     try:
         _read_specs_and_push_index(file_list, read_fn, cache_prefix, db, db_root_dir, concurrency)
@@ -1157,105 +1160,61 @@ def gzip_compressed_tarfile(path):
         yield tar
 
 
-def _tarinfo_name(p: str):
+def deterministic_tarinfo(tarinfo: tarfile.TarInfo):
-    return p.lstrip("/")
+    # We only add files, symlinks, hardlinks, and directories
+    # No character devices, block devices and FIFOs should ever enter a tarball.
+    if tarinfo.isdev():
+        return None
+
+    # For distribution, it makes no sense to user/group data; since (a) they don't exist
+    # on other machines, and (b) they lead to surprises as `tar x` run as root will change
+    # ownership if it can. We want to extract as the current user. By setting owner to root,
+    # root will extract as root, and non-privileged user will extract as themselves.
+    tarinfo.uid = 0
+    tarinfo.gid = 0
+    tarinfo.uname = ""
+    tarinfo.gname = ""
+
+    # Reset mtime to epoch time, our prefixes are not truly immutable, so files may get
+    # touched; as long as the content does not change, this ensures we get stable tarballs.
+    tarinfo.mtime = 0
+
+    # Normalize mode
+    if tarinfo.isfile() or tarinfo.islnk():
+        # If user can execute, use 0o755; else 0o644
+        # This is to avoid potentially unsafe world writable & exeutable files that may get
+        # extracted when Python or tar is run with privileges
+        tarinfo.mode = 0o644 if tarinfo.mode & 0o100 == 0 else 0o755
+    else:  # symbolic link and directories
+        tarinfo.mode = 0o755
+
+    return tarinfo
 
 
-def tarfile_of_spec_prefix(tar: tarfile.TarFile, prefix: str) -> None:
+def tar_add_metadata(tar: tarfile.TarFile, path: str, data: dict):
-    """Create a tarfile of an install prefix of a spec. Skips existing buildinfo file.
+    # Serialize buildinfo for the tarball
-    Only adds regular files, symlinks and dirs. Skips devices, fifos. Preserves hardlinks.
+    bstring = syaml.dump(data, default_flow_style=True).encode("utf-8")
-    Normalizes permissions like git. Tar entries are added in depth-first pre-order, with
+    tarinfo = tarfile.TarInfo(name=path)
-    dir entries partitioned by file | dir, and sorted alphabetically, for reproducibility.
+    tarinfo.size = len(bstring)
-    Partitioning ensures only one dir is in memory at a time, and sorting improves compression.
+    tar.addfile(deterministic_tarinfo(tarinfo), io.BytesIO(bstring))
-
-    Args:
-        tar: tarfile object to add files to
-        prefix: absolute install prefix of spec"""
-    if not os.path.isabs(prefix) or not os.path.isdir(prefix):
-        raise ValueError(f"prefix '{prefix}' must be an absolute path to a directory")
-    hardlink_to_tarinfo_name: Dict[Tuple[int, int], str] = dict()
-    stat_key = lambda stat: (stat.st_dev, stat.st_ino)
-
-    try:  # skip buildinfo file if it exists
-        files_to_skip = [stat_key(os.lstat(buildinfo_file_name(prefix)))]
-    except OSError:
-        files_to_skip = []
-
-    dir_stack = [prefix]
-    while dir_stack:
-        dir = dir_stack.pop()
-
-        # Add the dir before its contents
-        dir_info = tarfile.TarInfo(_tarinfo_name(dir))
-        dir_info.type = tarfile.DIRTYPE
-        dir_info.mode = 0o755
-        tar.addfile(dir_info)
-
-        # Sort by name: reproducible & improves compression
-        with os.scandir(dir) as it:
-            entries = sorted(it, key=lambda entry: entry.name)
-
-        new_dirs = []
-        for entry in entries:
-            if entry.is_dir(follow_symlinks=False):
-                new_dirs.append(entry.path)
-                continue
-
-            file_info = tarfile.TarInfo(_tarinfo_name(entry.path))
-
-            s = entry.stat(follow_symlinks=False)
-
-            # Skip existing binary distribution files.
-            id = stat_key(s)
-            if id in files_to_skip:
-                continue
-
-            # Normalize the mode
-            file_info.mode = 0o644 if s.st_mode & 0o100 == 0 else 0o755
-
-            if entry.is_symlink():
-                file_info.type = tarfile.SYMTYPE
-                file_info.linkname = os.readlink(entry.path)
-                tar.addfile(file_info)
-
-            elif entry.is_file(follow_symlinks=False):
-                # Deduplicate hardlinks
-                if s.st_nlink > 1:
-                    if id in hardlink_to_tarinfo_name:
-                        file_info.type = tarfile.LNKTYPE
-                        file_info.linkname = hardlink_to_tarinfo_name[id]
-                        tar.addfile(file_info)
-                        continue
-                    hardlink_to_tarinfo_name[id] = file_info.name
-
-                # If file not yet seen, copy it.
-                file_info.type = tarfile.REGTYPE
-                file_info.size = s.st_size
-
-                with open(entry.path, "rb") as f:
-                    tar.addfile(file_info, f)
-
-        dir_stack.extend(reversed(new_dirs))  # we pop, so reverse to stay alphabetical
 
 
-def _do_create_tarball(tarfile_path: str, binaries_dir: str, buildinfo: dict):
+def _do_create_tarball(tarfile_path, binaries_dir, pkg_dir, buildinfo):
     with gzip_compressed_tarfile(tarfile_path) as tar:
-        # Tarball the install prefix
+        tar.add(name=binaries_dir, arcname=pkg_dir, filter=deterministic_tarinfo)
-        tarfile_of_spec_prefix(tar, binaries_dir)
+        tar_add_metadata(tar, buildinfo_file_name(pkg_dir), buildinfo)
-
-        # Serialize buildinfo for the tarball
-        bstring = syaml.dump(buildinfo, default_flow_style=True).encode("utf-8")
-        tarinfo = tarfile.TarInfo(name=_tarinfo_name(buildinfo_file_name(binaries_dir)))
-        tarinfo.type = tarfile.REGTYPE
-        tarinfo.size = len(bstring)
-        tarinfo.mode = 0o644
-        tar.addfile(tarinfo, io.BytesIO(bstring))
 
 
 class PushOptions(NamedTuple):
     #: Overwrite existing tarball/metadata files in buildcache
     force: bool = False
 
+    #: Whether to use relative RPATHs
+    relative: bool = False
+
+    #: Allow absolute paths to package prefixes when creating a tarball
+    allow_root: bool = False
+
     #: Regenerated indices after pushing
     regenerate_index: bool = False
 
@@ -1300,7 +1259,7 @@ def _build_tarball_in_stage_dir(spec: Spec, out_url: str, stage_dir: str, option
     # without concretizing with the current spack packages
     # and preferences
 
-    spec_file = spack.store.STORE.layout.spec_file_path(spec)
+    spec_file = spack.store.layout.spec_file_path(spec)
     specfile_name = tarball_name(spec, ".spec.json")
     specfile_path = os.path.realpath(os.path.join(cache_prefix, specfile_name))
     signed_specfile_path = "{0}.sig".format(specfile_path)
@@ -1321,12 +1280,41 @@ def _build_tarball_in_stage_dir(spec: Spec, out_url: str, stage_dir: str, option
     ):
         raise NoOverwriteException(url_util.format(remote_specfile_path))
 
-    binaries_dir = spec.prefix
+    pkg_dir = os.path.basename(spec.prefix.rstrip(os.path.sep))
+    workdir = os.path.join(stage_dir, pkg_dir)
+
+    # TODO: We generally don't want to mutate any files, but when using relative
+    # mode, Spack unfortunately *does* mutate rpaths and links ahead of time.
+    # For now, we only make a full copy of the spec prefix when in relative mode.
+
+    if options.relative:
+        # tarfile is used because it preserves hardlink etc best.
+        binaries_dir = workdir
+        temp_tarfile_name = tarball_name(spec, ".tar")
+        temp_tarfile_path = os.path.join(tarfile_dir, temp_tarfile_name)
+        with closing(tarfile.open(temp_tarfile_path, "w")) as tar:
+            tar.add(name="%s" % spec.prefix, arcname=".")
+        with closing(tarfile.open(temp_tarfile_path, "r")) as tar:
+            tar.extractall(workdir)
+        os.remove(temp_tarfile_path)
+    else:
+        binaries_dir = spec.prefix
 
     # create info for later relocation and create tar
-    buildinfo = get_buildinfo_dict(spec)
+    buildinfo = get_buildinfo_dict(spec, options.relative)
 
-    _do_create_tarball(tarfile_path, binaries_dir, buildinfo)
+    # optionally make the paths in the binaries relative to each other
+    # in the spack install tree before creating tarball
+    if options.relative:
+        make_package_relative(workdir, spec, buildinfo, options.allow_root)
+    elif not options.allow_root:
+        ensure_package_relocatable(buildinfo, binaries_dir)
+
+    _do_create_tarball(tarfile_path, binaries_dir, pkg_dir, buildinfo)
+
+    # remove copy of install directory
+    if options.relative:
+        shutil.rmtree(workdir)
 
     # get the sha256 checksum of the tarball
     checksum = checksum_tarball(tarfile_path)
@@ -1340,7 +1328,16 @@ def _build_tarball_in_stage_dir(spec: Spec, out_url: str, stage_dir: str, option
         else:
             raise ValueError("{0} not a valid spec file type".format(spec_file))
     spec_dict["buildcache_layout_version"] = 1
-    spec_dict["binary_cache_checksum"] = {"hash_algorithm": "sha256", "hash": checksum}
+    bchecksum = {}
+    bchecksum["hash_algorithm"] = "sha256"
+    bchecksum["hash"] = checksum
+    spec_dict["binary_cache_checksum"] = bchecksum
+    # Add original install prefix relative to layout root to spec.json.
+    # This will be used to determine is the directory layout has changed.
+    buildinfo = {}
+    buildinfo["relative_prefix"] = os.path.relpath(spec.prefix, spack.store.layout.root)
+    buildinfo["relative_rpaths"] = options.relative
+    spec_dict["buildinfo"] = buildinfo
 
     with open(specfile_path, "w") as outfile:
         # Note: when using gpg clear sign, we need to avoid long lines (19995 chars).
@@ -1397,7 +1394,7 @@ def specs_to_be_packaged(
     packageable = lambda n: not n.external and n.installed
 
     # Mass install check
-    with spack.store.STORE.db.read_transaction():
+    with spack.store.db.read_transaction():
         return list(filter(packageable, nodes))
 
 
@@ -1458,7 +1455,7 @@ def try_fetch(url_to_fetch):
 
     try:
         stage.fetch()
-    except spack.error.FetchError:
+    except web_util.FetchError:
         stage.destroy()
         return None
 
@@ -1499,9 +1496,8 @@ def download_tarball(spec, unsigned=False, mirrors_for_spec=None):
            "signature_verified": "true-if-binary-pkg-was-already-verified"
        }
     """
-    configured_mirrors = spack.mirror.MirrorCollection(binary=True).values()
+    if not spack.mirror.MirrorCollection():
-    if not configured_mirrors:
+        tty.die("Please add a spack mirror to allow " + "download of pre-compiled packages.")
-        tty.die("Please add a spack mirror to allow download of pre-compiled packages.")
 
     tarball = tarball_path_name(spec, ".spack")
     specfile_prefix = tarball_name(spec, ".spec")
@@ -1518,7 +1514,11 @@ def download_tarball(spec, unsigned=False, mirrors_for_spec=None):
     # we need was in an un-indexed mirror.  No need to check any
     # mirror for the spec twice though.
     try_first = [i["mirror_url"] for i in mirrors_for_spec] if mirrors_for_spec else []
-    try_next = [i.fetch_url for i in configured_mirrors if i.fetch_url not in try_first]
+    try_next = [
+        i.fetch_url
+        for i in spack.mirror.MirrorCollection().values()
+        if i.fetch_url not in try_first
+    ]
 
     for url in try_first + try_next:
         mirrors_to_try.append(
@@ -1596,6 +1596,41 @@ def download_tarball(spec, unsigned=False, mirrors_for_spec=None):
     return None
 
 
+def make_package_relative(workdir, spec, buildinfo, allow_root):
+    """
+    Change paths in binaries to relative paths. Change absolute symlinks
+    to relative symlinks.
+    """
+    prefix = spec.prefix
+    old_layout_root = buildinfo["buildpath"]
+    orig_path_names = list()
+    cur_path_names = list()
+    for filename in buildinfo["relocate_binaries"]:
+        orig_path_names.append(os.path.join(prefix, filename))
+        cur_path_names.append(os.path.join(workdir, filename))
+
+    platform = spack.platforms.by_name(spec.platform)
+    if "macho" in platform.binary_formats:
+        relocate.make_macho_binaries_relative(cur_path_names, orig_path_names, old_layout_root)
+
+    if "elf" in platform.binary_formats:
+        relocate.make_elf_binaries_relative(cur_path_names, orig_path_names, old_layout_root)
+
+    allow_root or relocate.ensure_binaries_are_relocatable(cur_path_names)
+    orig_path_names = list()
+    cur_path_names = list()
+    for linkname in buildinfo.get("relocate_links", []):
+        orig_path_names.append(os.path.join(prefix, linkname))
+        cur_path_names.append(os.path.join(workdir, linkname))
+    relocate.make_link_relative(cur_path_names, orig_path_names)
+
+
+def ensure_package_relocatable(buildinfo, binaries_dir):
+    """Check if package binaries are relocatable."""
+    binaries = [os.path.join(binaries_dir, f) for f in buildinfo["relocate_binaries"]]
+    relocate.ensure_binaries_are_relocatable(binaries)
+
+
 def dedupe_hardlinks_if_necessary(root, buildinfo):
     """Updates a buildinfo dict for old archives that did
     not dedupe hardlinks. De-duping hardlinks is necessary
@@ -1621,10 +1656,9 @@ def dedupe_hardlinks_if_necessary(root, buildinfo):
         for rel_path in buildinfo[key]:
             stat_result = os.lstat(os.path.join(root, rel_path))
             identifier = (stat_result.st_dev, stat_result.st_ino)
-            if stat_result.st_nlink > 1:
+            if identifier in visited:
-                if identifier in visited:
+                continue
-                    continue
+            visited.add(identifier)
-                visited.add(identifier)
             new_list.append(rel_path)
         buildinfo[key] = new_list
 
@@ -1635,7 +1669,7 @@ def relocate_package(spec):
     """
     workdir = str(spec.prefix)
     buildinfo = read_buildinfo_file(workdir)
-    new_layout_root = str(spack.store.STORE.layout.root)
+    new_layout_root = str(spack.store.layout.root)
     new_prefix = str(spec.prefix)
     new_rel_prefix = str(os.path.relpath(new_prefix, new_layout_root))
     new_spack_prefix = str(spack.paths.prefix)
@@ -1820,46 +1854,16 @@ def _extract_inner_tarball(spec, filename, extract_to, unsigned, remote_checksum
     return tarfile_path
 
 
-def _tar_strip_component(tar: tarfile.TarFile, prefix: str):
+def extract_tarball(spec, download_result, unsigned=False, force=False):
-    """Strip the top-level directory `prefix` from the member names in a tarfile."""
-    # Including trailing /, otherwise we end up with absolute paths.
-    regex = re.compile(re.escape(prefix) + "/*")
-
-    # Remove the top-level directory from the member (link)names.
-    # Note: when a tarfile is created, relative in-prefix symlinks are
-    # expanded to matching member names of tarfile entries. So, we have
-    # to ensure that those are updated too.
-    # Absolute symlinks are copied verbatim -- relocation should take care of
-    # them.
-    for m in tar.getmembers():
-        result = regex.match(m.name)
-        assert result is not None
-        m.name = m.name[result.end() :]
-        if m.linkname:
-            result = regex.match(m.linkname)
-            if result:
-                m.linkname = m.linkname[result.end() :]
-
-
-def extract_tarball(spec, download_result, unsigned=False, force=False, timer=timer.NULL_TIMER):
     """
     extract binary tarball for given package into install area
     """
-    timer.start("extract")
     if os.path.exists(spec.prefix):
         if force:
             shutil.rmtree(spec.prefix)
         else:
             raise NoOverwriteException(str(spec.prefix))
 
-    # Create the install prefix
-    fsys.mkdirp(
-        spec.prefix,
-        mode=get_package_dir_permissions(spec),
-        group=get_package_group(spec),
-        default_perms="parents",
-    )
-
     specfile_path = download_result["specfile_stage"].save_filename
 
     with open(specfile_path, "r") as inputfile:
@@ -1913,59 +1917,56 @@ def extract_tarball(spec, download_result, unsigned=False, force=False, timer=ti
                 tarfile_path, size, contents, "sha256", expected, local_checksum
             )
 
-    try:
+    new_relative_prefix = str(os.path.relpath(spec.prefix, spack.store.layout.root))
-        with closing(tarfile.open(tarfile_path, "r")) as tar:
+    # if the original relative prefix is in the spec file use it
-            # Remove install prefix from tarfil to extract directly into spec.prefix
+    buildinfo = spec_dict.get("buildinfo", {})
-            _tar_strip_component(tar, prefix=_ensure_common_prefix(tar))
+    old_relative_prefix = buildinfo.get("relative_prefix", new_relative_prefix)
-            tar.extractall(path=spec.prefix)
+    rel = buildinfo.get("relative_rpaths")
-    except Exception:
+    info = "old relative prefix %s\nnew relative prefix %s\nrelative rpaths %s"
-        shutil.rmtree(spec.prefix, ignore_errors=True)
+    tty.debug(info % (old_relative_prefix, new_relative_prefix, rel), level=2)
-        _delete_staged_downloads(download_result)
-        raise
 
+    # Extract the tarball into the store root, presumably on the same filesystem.
+    # The directory created is the base directory name of the old prefix.
+    # Moving the old prefix name to the new prefix location should preserve
+    # hard links and symbolic links.
+    extract_tmp = os.path.join(spack.store.layout.root, ".tmp")
+    mkdirp(extract_tmp)
+    extracted_dir = os.path.join(extract_tmp, old_relative_prefix.split(os.path.sep)[-1])
+
+    with closing(tarfile.open(tarfile_path, "r")) as tar:
+        try:
+            tar.extractall(path=extract_tmp)
+        except Exception as e:
+            _delete_staged_downloads(download_result)
+            shutil.rmtree(extracted_dir)
+            raise e
+    try:
+        shutil.move(extracted_dir, spec.prefix)
+    except Exception as e:
+        _delete_staged_downloads(download_result)
+        shutil.rmtree(extracted_dir)
+        raise e
     os.remove(tarfile_path)
     os.remove(specfile_path)
-    timer.stop("extract")
 
-    timer.start("relocate")
     try:
         relocate_package(spec)
     except Exception as e:
-        shutil.rmtree(spec.prefix, ignore_errors=True)
+        shutil.rmtree(spec.prefix)
         raise e
     else:
         manifest_file = os.path.join(
-            spec.prefix,
+            spec.prefix, spack.store.layout.metadata_dir, spack.store.layout.manifest_file_name
-            spack.store.STORE.layout.metadata_dir,
-            spack.store.STORE.layout.manifest_file_name,
         )
         if not os.path.exists(manifest_file):
             spec_id = spec.format("{name}/{hash:7}")
             tty.warn("No manifest file in tarball for spec %s" % spec_id)
     finally:
         if tmpdir:
-            shutil.rmtree(tmpdir, ignore_errors=True)
+            shutil.rmtree(tmpdir)
         if os.path.exists(filename):
             os.remove(filename)
         _delete_staged_downloads(download_result)
-    timer.stop("relocate")
-
-
-def _ensure_common_prefix(tar: tarfile.TarFile) -> str:
-    # Get the shortest length directory.
-    common_prefix = min((e.name for e in tar.getmembers() if e.isdir()), key=len, default=None)
-
-    if common_prefix is None:
-        raise ValueError("Tarball does not contain a common prefix")
-
-    # Validate that each file starts with the prefix
-    for member in tar.getmembers():
-        if not member.name.startswith(common_prefix):
-            raise ValueError(
-                f"Tarball contains file {member.name} outside of prefix {common_prefix}"
-            )
-
-    return common_prefix
 
 
 def install_root_node(spec, unsigned=False, force=False, sha256=None):
@@ -2014,7 +2015,7 @@ def install_root_node(spec, unsigned=False, force=False, sha256=None):
         tty.msg('Installing "{0}" from a buildcache'.format(spec.format()))
         extract_tarball(spec, download_result, unsigned, force)
         spack.hooks.post_install(spec, False)
-        spack.store.STORE.db.add(spec, spack.store.STORE.layout)
+        spack.store.db.add(spec, spack.store.layout)
 
 
 def install_single_spec(spec, unsigned=False, force=False):
@@ -2039,9 +2040,7 @@ def try_direct_fetch(spec, mirrors=None):
     specfile_is_signed = False
     found_specs = []
 
-    binary_mirrors = spack.mirror.MirrorCollection(mirrors=mirrors, binary=True).values()
+    for mirror in spack.mirror.MirrorCollection(mirrors=mirrors).values():
-
-    for mirror in binary_mirrors:
         buildcache_fetch_url_json = url_util.join(
             mirror.fetch_url, _build_cache_relative_path, specfile_name
         )
@@ -2104,7 +2103,7 @@ def get_mirrors_for_spec(spec=None, mirrors_to_check=None, index_only=False):
     if spec is None:
         return []
 
-    if not spack.mirror.MirrorCollection(mirrors=mirrors_to_check, binary=True):
+    if not spack.mirror.MirrorCollection(mirrors=mirrors_to_check):
         tty.debug("No Spack mirrors are currently configured")
         return {}
 
@@ -2143,7 +2142,7 @@ def clear_spec_cache():
 
 def get_keys(install=False, trust=False, force=False, mirrors=None):
     """Get pgp public keys available on mirror with suffix .pub"""
-    mirror_collection = mirrors or spack.mirror.MirrorCollection(binary=True)
+    mirror_collection = mirrors or spack.mirror.MirrorCollection()
 
     if not mirror_collection:
         tty.die("Please add a spack mirror to allow " + "download of build caches.")
@@ -2186,7 +2185,7 @@ def get_keys(install=False, trust=False, force=False, mirrors=None):
                 if not os.path.exists(stage.save_filename):
                     try:
                         stage.fetch()
-                    except spack.error.FetchError:
+                    except web_util.FetchError:
                         continue
 
             tty.debug("Found key {0}".format(fingerprint))
@@ -2304,7 +2303,7 @@ def check_specs_against_mirrors(mirrors, specs, output_file=None):
 
     """
     rebuilds = {}
-    for mirror in spack.mirror.MirrorCollection(mirrors, binary=True).values():
+    for mirror in spack.mirror.MirrorCollection(mirrors).values():
         tty.debug("Checking for built specs at {0}".format(mirror.fetch_url))
 
         rebuild_list = []
@@ -2338,7 +2337,7 @@ def _download_buildcache_entry(mirror_root, descriptions):
             try:
                 stage.fetch()
                 break
-            except spack.error.FetchError as e:
+            except web_util.FetchError as e:
                 tty.debug(e)
         else:
             if fail_if_missing:
@@ -2348,7 +2347,7 @@ def _download_buildcache_entry(mirror_root, descriptions):
 
 
 def download_buildcache_entry(file_descriptions, mirror_url=None):
-    if not mirror_url and not spack.mirror.MirrorCollection(binary=True):
+    if not mirror_url and not spack.mirror.MirrorCollection():
         tty.die(
             "Please provide or add a spack mirror to allow " + "download of buildcache entries."
         )
@@ -2357,7 +2356,7 @@ def download_buildcache_entry(file_descriptions, mirror_url=None):
         mirror_root = os.path.join(mirror_url, _build_cache_relative_path)
         return _download_buildcache_entry(mirror_root, file_descriptions)
 
-    for mirror in spack.mirror.MirrorCollection(binary=True).values():
+    for mirror in spack.mirror.MirrorCollection().values():
         mirror_root = os.path.join(mirror.fetch_url, _build_cache_relative_path)
 
         if _download_buildcache_entry(mirror_root, file_descriptions):
@@ -2396,7 +2395,7 @@ def download_single_spec(concrete_spec, destination, mirror_url=None):
     return download_buildcache_entry(files_to_fetch, mirror_url)
 
 
-class BinaryCacheQuery:
+class BinaryCacheQuery(object):
     """Callable object to query if a spec is in a binary cache"""
 
     def __init__(self, all_architectures):
@@ -2415,12 +2414,22 @@ def __init__(self, all_architectures):
 
         self.possible_specs = specs
 
-    def __call__(self, spec: Spec, **kwargs):
+    def __call__(self, spec, **kwargs):
         """
         Args:
-            spec: The spec being searched for
+            spec (str): The spec being searched for in its string representation or hash.
         """
-        return [s for s in self.possible_specs if s.satisfies(spec)]
+        matches = []
+        if spec.startswith("/"):
+            # Matching a DAG hash
+            query_hash = spec.replace("/", "")
+            for candidate_spec in self.possible_specs:
+                if candidate_spec.dag_hash().startswith(query_hash):
+                    matches.append(candidate_spec)
+        else:
+            # Matching a spec constraint
+            matches = [s for s in self.possible_specs if s.satisfies(spec)]
+        return matches
 
 
 class FetchIndexError(Exception):

lib/spack/spack/bootstrap/__init__.py

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 """Function and classes needed to bootstrap Spack itself."""
 
-from .config import ensure_bootstrap_configuration, is_bootstrapping, store_path
+from .config import ensure_bootstrap_configuration, is_bootstrapping
 from .core import all_core_root_specs, ensure_core_dependencies, ensure_patchelf_in_path_or_raise
 from .environment import BootstrapEnvironment, ensure_environment_dependencies
 from .status import status_message
@@ -18,5 +18,4 @@
     "ensure_environment_dependencies",
     "BootstrapEnvironment",
     "status_message",
-    "store_path",
 ]

lib/spack/spack/bootstrap/_common.py

@@ -50,7 +50,7 @@ def _try_import_from_store(
         # We have to run as part of this python interpreter
         query_spec += " ^" + spec_for_current_python()
 
-    installed_specs = spack.store.STORE.db.query(query_spec, installed=True)
+    installed_specs = spack.store.db.query(query_spec, installed=True)
 
     for candidate_spec in installed_specs:
         pkg = candidate_spec["python"].package
@@ -183,7 +183,7 @@ def _executables_in_store(
     executables_str = ", ".join(executables)
     msg = "[BOOTSTRAP EXECUTABLES {0}] Try installed specs with query '{1}'"
     tty.debug(msg.format(executables_str, query_spec))
-    installed_specs = spack.store.STORE.db.query(query_spec, installed=True)
+    installed_specs = spack.store.db.query(query_spec, installed=True)
     if installed_specs:
         for concrete_spec in installed_specs:
             bin_dir = concrete_spec.prefix.bin

lib/spack/spack/bootstrap/config.py

@@ -124,9 +124,9 @@ def _read_and_sanitize_configuration() -> Dict[str, Any]:
 def _bootstrap_config_scopes() -> Sequence["spack.config.ConfigScope"]:
     tty.debug("[BOOTSTRAP CONFIG SCOPE] name=_builtin")
     config_scopes: MutableSequence["spack.config.ConfigScope"] = [
-        spack.config.InternalConfigScope("_builtin", spack.config.CONFIG_DEFAULTS)
+        spack.config.InternalConfigScope("_builtin", spack.config.config_defaults)
     ]
-    configuration_paths = (spack.config.CONFIGURATION_DEFAULTS_PATH, ("bootstrap", _config_path()))
+    configuration_paths = (spack.config.configuration_defaults_path, ("bootstrap", _config_path()))
     for name, path in configuration_paths:
         platform = spack.platforms.host().name
         platform_scope = spack.config.ConfigScope(
@@ -150,19 +150,18 @@ def _add_compilers_if_missing() -> None:
 
 @contextlib.contextmanager
 def _ensure_bootstrap_configuration() -> Generator:
-    spack.store.ensure_singleton_created()
     bootstrap_store_path = store_path()
     user_configuration = _read_and_sanitize_configuration()
     with spack.environment.no_active_environment():
         with spack.platforms.prevent_cray_detection(), spack.platforms.use_platform(
             spack.platforms.real_host()
-        ), spack.repo.use_repositories(spack.paths.packages_path):
+        ), spack.repo.use_repositories(spack.paths.packages_path), spack.store.use_store(
+            bootstrap_store_path
+        ):
             # Default configuration scopes excluding command line
             # and builtin but accounting for platform specific scopes
             config_scopes = _bootstrap_config_scopes()
-            with spack.config.use_configuration(*config_scopes), spack.store.use_store(
+            with spack.config.use_configuration(*config_scopes):
-                bootstrap_store_path, extra_data={"padded_length": 0}
-            ):
                 # We may need to compile code from sources, so ensure we
                 # have compilers for the current platform
                 _add_compilers_if_missing()

lib/spack/spack/bootstrap/core.py

@@ -476,22 +476,15 @@ def ensure_executables_in_path_or_raise(
 def _add_externals_if_missing() -> None:
     search_list = [
         # clingo
-        "cmake",
+        spack.repo.path.get_pkg_class("cmake"),
-        "bison",
+        spack.repo.path.get_pkg_class("bison"),
         # GnuPG
-        "gawk",
+        spack.repo.path.get_pkg_class("gawk"),
-        # develop deps
-        "git",
     ]
     if IS_WINDOWS:
-        search_list.append("winbison")
+        search_list.append(spack.repo.path.get_pkg_class("winbison"))
-    externals = spack.detection.by_path(search_list)
+    detected_packages = spack.detection.by_executable(search_list)
-    # System git is typically deprecated, so mark as non-buildable to force it as external
+    spack.detection.update_configuration(detected_packages, scope="bootstrap")
-    non_buildable_externals = {k: externals.pop(k) for k in ("git",) if k in externals}
-    spack.detection.update_configuration(externals, scope="bootstrap", buildable=True)
-    spack.detection.update_configuration(
-        non_buildable_externals, scope="bootstrap", buildable=False
-    )
 
 
 def clingo_root_spec() -> str:

lib/spack/spack/bootstrap/environment.py

@@ -15,15 +15,14 @@
 
 from llnl.util import tty
 
+import spack.build_environment
 import spack.environment
 import spack.tengine
-import spack.util.cpus
 import spack.util.executable
 from spack.environment import depfile
 
 from ._common import _root_spec
 from .config import root_path, spec_for_current_python, store_path
-from .core import _add_externals_if_missing
 
 
 class BootstrapEnvironment(spack.environment.Environment):
@@ -137,7 +136,7 @@ def _install_with_depfile(self) -> None:
             "-C",
             str(self.environment_root()),
             "-j",
-            str(spack.util.cpus.determine_number_of_jobs(parallel=True)),
+            str(spack.build_environment.determine_number_of_jobs(parallel=True)),
             **kwargs,
         )
 
@@ -176,17 +175,16 @@ def black_root_spec() -> str:
 
 def flake8_root_spec() -> str:
     """Return the root spec used to bootstrap flake8"""
-    return _root_spec("py-flake8@3.8.2:")
+    return _root_spec("py-flake8")
 
 
 def pytest_root_spec() -> str:
     """Return the root spec used to bootstrap flake8"""
-    return _root_spec("py-pytest@6.2.4:")
+    return _root_spec("py-pytest")
 
 
 def ensure_environment_dependencies() -> None:
     """Ensure Spack dependencies from the bootstrap environment are installed and ready to use"""
-    _add_externals_if_missing()
     with BootstrapEnvironment() as env:
         env.update_installations()
         env.update_syspath_and_environ()

lib/spack/spack/build_environment.py

@@ -43,7 +43,6 @@
 from typing import List, Tuple
 
 import llnl.util.tty as tty
-from llnl.string import plural
 from llnl.util.filesystem import join_path
 from llnl.util.lang import dedupe
 from llnl.util.symlink import symlink
@@ -69,7 +68,7 @@
 from spack.error import NoHeadersError, NoLibrariesError
 from spack.install_test import spack_install_test_log
 from spack.installer import InstallError
-from spack.util.cpus import determine_number_of_jobs
+from spack.util.cpus import cpus_available
 from spack.util.environment import (
     SYSTEM_DIRS,
     EnvironmentModifications,
@@ -83,6 +82,7 @@
 from spack.util.executable import Executable
 from spack.util.log_parse import make_log_context, parse_log_events
 from spack.util.module_cmd import load_module, module, path_from_modules
+from spack.util.string import plural
 
 #
 # This can be set by the user to globally disable parallel builds.
@@ -148,7 +148,7 @@ class MakeExecutable(Executable):
 
     def __init__(self, name, jobs, **kwargs):
         supports_jobserver = kwargs.pop("supports_jobserver", True)
-        super().__init__(name, **kwargs)
+        super(MakeExecutable, self).__init__(name, **kwargs)
         self.supports_jobserver = supports_jobserver
         self.jobs = jobs
 
@@ -175,7 +175,7 @@ def __call__(self, *args, **kwargs):
             if jobs_env_jobs is not None:
                 kwargs["extra_env"] = {jobs_env: str(jobs_env_jobs)}
 
-        return super().__call__(*args, **kwargs)
+        return super(MakeExecutable, self).__call__(*args, **kwargs)
 
 
 def _on_cray():
@@ -537,6 +537,39 @@ def update_compiler_args_for_dep(dep):
     env.set(SPACK_RPATH_DIRS, ":".join(rpath_dirs))
 
 
+def determine_number_of_jobs(
+    parallel=False, command_line=None, config_default=None, max_cpus=None
+):
+    """
+    Packages that require sequential builds need 1 job. Otherwise we use the
+    number of jobs set on the command line. If not set, then we use the config
+    defaults (which is usually set through the builtin config scope), but we
+    cap to the number of CPUs available to avoid oversubscription.
+
+    Parameters:
+        parallel (bool or None): true when package supports parallel builds
+        command_line (int or None): command line override
+        config_default (int or None): config default number of jobs
+        max_cpus (int or None): maximum number of CPUs available. When None, this
+            value is automatically determined.
+    """
+    if not parallel:
+        return 1
+
+    if command_line is None and "command_line" in spack.config.scopes():
+        command_line = spack.config.get("config:build_jobs", scope="command_line")
+
+    if command_line is not None:
+        return command_line
+
+    max_cpus = max_cpus or cpus_available()
+
+    # in some rare cases _builtin config may not be set, so default to max 16
+    config_default = config_default or spack.config.get("config:build_jobs", 16)
+
+    return min(max_cpus, config_default)
+
+
 def set_module_variables_for_package(pkg):
     """Populate the Python module of a package with some useful global names.
     This makes things easier for package writers.
@@ -994,7 +1027,7 @@ def get_cmake_prefix_path(pkg):
 
 
 def _setup_pkg_and_run(
-    serialized_pkg, function, kwargs, write_pipe, input_multiprocess_fd, jsfd1, jsfd2
+    serialized_pkg, function, kwargs, child_pipe, input_multiprocess_fd, jsfd1, jsfd2
 ):
     context = kwargs.get("context", "build")
 
@@ -1015,12 +1048,12 @@ def _setup_pkg_and_run(
                 pkg, dirty=kwargs.get("dirty", False), context=context
             )
         return_value = function(pkg, kwargs)
-        write_pipe.send(return_value)
+        child_pipe.send(return_value)
 
     except StopPhase as e:
         # Do not create a full ChildError from this, it's not an error
         # it's a control statement.
-        write_pipe.send(e)
+        child_pipe.send(e)
     except BaseException:
         # catch ANYTHING that goes wrong in the child process
         exc_type, exc, tb = sys.exc_info()
@@ -1069,10 +1102,10 @@ def _setup_pkg_and_run(
             context,
             package_context,
         )
-        write_pipe.send(ce)
+        child_pipe.send(ce)
 
     finally:
-        write_pipe.close()
+        child_pipe.close()
         if input_multiprocess_fd is not None:
             input_multiprocess_fd.close()
 
@@ -1116,7 +1149,7 @@ def child_fun():
     For more information on `multiprocessing` child process creation
     mechanisms, see https://docs.python.org/3/library/multiprocessing.html#contexts-and-start-methods
     """
-    read_pipe, write_pipe = multiprocessing.Pipe(duplex=False)
+    parent_pipe, child_pipe = multiprocessing.Pipe()
     input_multiprocess_fd = None
     jobserver_fd1 = None
     jobserver_fd2 = None
@@ -1141,7 +1174,7 @@ def child_fun():
                 serialized_pkg,
                 function,
                 kwargs,
-                write_pipe,
+                child_pipe,
                 input_multiprocess_fd,
                 jobserver_fd1,
                 jobserver_fd2,
@@ -1150,12 +1183,6 @@ def child_fun():
 
         p.start()
 
-        # We close the writable end of the pipe now to be sure that p is the
-        # only process which owns a handle for it. This ensures that when p
-        # closes its handle for the writable end, read_pipe.recv() will
-        # promptly report the readable end as being ready.
-        write_pipe.close()
-
     except InstallError as e:
         e.pkg = pkg
         raise
@@ -1165,16 +1192,7 @@ def child_fun():
         if input_multiprocess_fd is not None:
             input_multiprocess_fd.close()
 
-    def exitcode_msg(p):
+    child_result = parent_pipe.recv()
-        typ = "exit" if p.exitcode >= 0 else "signal"
-        return f"{typ} {abs(p.exitcode)}"
-
-    try:
-        child_result = read_pipe.recv()
-    except EOFError:
-        p.join()
-        raise InstallError(f"The process has stopped unexpectedly ({exitcode_msg(p)})")
-
     p.join()
 
     # If returns a StopPhase, raise it
@@ -1194,10 +1212,6 @@ def exitcode_msg(p):
         child_result.print_context()
         raise child_result
 
-    # Fallback. Usually caught beforehand in EOFError above.
-    if p.exitcode != 0:
-        raise InstallError(f"The process failed unexpectedly ({exitcode_msg(p)})")
-
     return child_result
 
 
@@ -1242,8 +1256,9 @@ def make_stack(tb, stack=None):
             func = getattr(obj, tb.tb_frame.f_code.co_name, "")
             if func:
                 typename, *_ = func.__qualname__.partition(".")
-                if isinstance(obj, CONTEXT_BASES) and typename not in basenames:
+
-                    break
+            if isinstance(obj, CONTEXT_BASES) and typename not in basenames:
+                break
     else:
         return None
 
@@ -1317,7 +1332,7 @@ class ChildError(InstallError):
     build_errors = [("spack.util.executable", "ProcessError")]
 
     def __init__(self, msg, module, classname, traceback_string, log_name, log_type, context):
-        super().__init__(msg)
+        super(ChildError, self).__init__(msg)
         self.module = module
         self.name = classname
         self.traceback = traceback_string
@@ -1358,7 +1373,7 @@ def long_message(self):
             test_log = join_path(os.path.dirname(self.log_name), spack_install_test_log)
             if os.path.isfile(test_log):
                 out.write("\nSee test log for details:\n")
-                out.write("  {0}\n".format(test_log))
+                out.write("  {0}n".format(test_log))
 
         return out.getvalue()
 

lib/spack/spack/build_systems/_checks.py

@@ -39,7 +39,7 @@ def check_paths(path_list, filetype, predicate):
     check_paths(pkg.sanity_check_is_file, "file", os.path.isfile)
     check_paths(pkg.sanity_check_is_dir, "directory", os.path.isdir)
 
-    ignore_file = llnl.util.lang.match_predicate(spack.store.STORE.layout.hidden_file_regexes)
+    ignore_file = llnl.util.lang.match_predicate(spack.store.layout.hidden_file_regexes)
     if all(map(ignore_file, os.listdir(pkg.prefix))):
         msg = "Install failed for {0}.  Nothing was installed!"
         raise spack.installer.InstallError(msg.format(pkg.name))

lib/spack/spack/build_systems/autotools.py

@@ -55,8 +55,7 @@ def flags_to_build_system_args(self, flags):
         setattr(self, "configure_flag_args", [])
         for flag, values in flags.items():
             if values:
-                var_name = "LIBS" if flag == "ldlibs" else flag.upper()
+                values_str = "{0}={1}".format(flag.upper(), " ".join(values))
-                values_str = "{0}={1}".format(var_name, " ".join(values))
                 self.configure_flag_args.append(values_str)
         # Spack's fflags are meant for both F77 and FC, therefore we
         # additionaly set FCFLAGS if required.

lib/spack/spack/build_systems/cached_cmake.py

@@ -2,7 +2,6 @@
 # Spack Project Developers. See the top-level COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
-import collections.abc
 import os
 from typing import Tuple
 
@@ -14,24 +13,21 @@
 from .cmake import CMakeBuilder, CMakePackage
 
 
-def cmake_cache_path(name, value, comment="", force=False):
+def cmake_cache_path(name, value, comment=""):
     """Generate a string for a cmake cache variable"""
-    force_str = " FORCE" if force else ""
+    return 'set({0} "{1}" CACHE PATH "{2}")\n'.format(name, value, comment)
-    return 'set({0} "{1}" CACHE PATH "{2}"{3})\n'.format(name, value, comment, force_str)
 
 
-def cmake_cache_string(name, value, comment="", force=False):
+def cmake_cache_string(name, value, comment=""):
     """Generate a string for a cmake cache variable"""
-    force_str = " FORCE" if force else ""
+    return 'set({0} "{1}" CACHE STRING "{2}")\n'.format(name, value, comment)
-    return 'set({0} "{1}" CACHE STRING "{2}"{3})\n'.format(name, value, comment, force_str)
 
 
-def cmake_cache_option(name, boolean_value, comment="", force=False):
+def cmake_cache_option(name, boolean_value, comment=""):
     """Generate a string for a cmake configuration option"""
 
     value = "ON" if boolean_value else "OFF"
-    force_str = " FORCE" if force else ""
+    return 'set({0} {1} CACHE BOOL "{2}")\n'.format(name, value, comment)
-    return 'set({0} {1} CACHE BOOL "{2}"{3})\n'.format(name, value, comment, force_str)
 
 
 class CachedCMakeBuilder(CMakeBuilder):
@@ -67,34 +63,6 @@ def cache_name(self):
     def cache_path(self):
         return os.path.join(self.pkg.stage.source_path, self.cache_name)
 
-    # Implement a version of the define_from_variant for Cached packages
-    def define_cmake_cache_from_variant(self, cmake_var, variant=None, comment=""):
-        """Return a Cached CMake field from the given variant's value.
-        See define_from_variant in lib/spack/spack/build_systems/cmake.py package
-        """
-
-        if variant is None:
-            variant = cmake_var.lower()
-
-        if variant not in self.pkg.variants:
-            raise KeyError('"{0}" is not a variant of "{1}"'.format(variant, self.pkg.name))
-
-        if variant not in self.pkg.spec.variants:
-            return ""
-
-        value = self.pkg.spec.variants[variant].value
-        field = None
-        if isinstance(value, bool):
-            field = cmake_cache_option(cmake_var, value, comment)
-        else:
-            if isinstance(value, collections.abc.Sequence) and not isinstance(value, str):
-                value = ";".join(str(v) for v in value)
-            else:
-                value = str(value)
-            field = cmake_cache_string(cmake_var, value, comment)
-
-        return field
-
     def initconfig_compiler_entries(self):
         # This will tell cmake to use the Spack compiler wrappers when run
         # through Spack, but use the underlying compiler when run outside of
@@ -227,58 +195,26 @@ def initconfig_hardware_entries(self):
             "#------------------{0}\n".format("-" * 60),
         ]
 
-        # Provide standard CMake arguments for dependent CachedCMakePackages
         if spec.satisfies("^cuda"):
             entries.append("#------------------{0}".format("-" * 30))
             entries.append("# Cuda")
             entries.append("#------------------{0}\n".format("-" * 30))
 
             cudatoolkitdir = spec["cuda"].prefix
-            entries.append(cmake_cache_path("CUDAToolkit_ROOT", cudatoolkitdir))
-            entries.append(cmake_cache_path("CMAKE_CUDA_COMPILER", "${CUDAToolkit_ROOT}/bin/nvcc"))
-            entries.append(cmake_cache_path("CMAKE_CUDA_HOST_COMPILER", "${CMAKE_CXX_COMPILER}"))
-            # Include the deprecated CUDA_TOOLKIT_ROOT_DIR for supporting BLT packages
             entries.append(cmake_cache_path("CUDA_TOOLKIT_ROOT_DIR", cudatoolkitdir))
-
+            cudacompiler = "${CUDA_TOOLKIT_ROOT_DIR}/bin/nvcc"
-            archs = spec.variants["cuda_arch"].value
+            entries.append(cmake_cache_path("CMAKE_CUDA_COMPILER", cudacompiler))
-            if archs[0] != "none":
+            entries.append(cmake_cache_path("CMAKE_CUDA_HOST_COMPILER", "${CMAKE_CXX_COMPILER}"))
-                arch_str = ";".join(archs)
-                entries.append(
-                    cmake_cache_string("CMAKE_CUDA_ARCHITECTURES", "{0}".format(arch_str))
-                )
-
-        if "+rocm" in spec:
-            entries.append("#------------------{0}".format("-" * 30))
-            entries.append("# ROCm")
-            entries.append("#------------------{0}\n".format("-" * 30))
-
-            # Explicitly setting HIP_ROOT_DIR may be a patch that is no longer necessary
-            entries.append(cmake_cache_path("HIP_ROOT_DIR", "{0}".format(spec["hip"].prefix)))
-            entries.append(
-                cmake_cache_path("HIP_CXX_COMPILER", "{0}".format(self.spec["hip"].hipcc))
-            )
-            archs = self.spec.variants["amdgpu_target"].value
-            if archs[0] != "none":
-                arch_str = ";".join(archs)
-                entries.append(
-                    cmake_cache_string("CMAKE_HIP_ARCHITECTURES", "{0}".format(arch_str))
-                )
-                entries.append(cmake_cache_string("AMDGPU_TARGETS", "{0}".format(arch_str)))
-                entries.append(cmake_cache_string("GPU_TARGETS", "{0}".format(arch_str)))
 
         return entries
 
     def std_initconfig_entries(self):
-        cmake_prefix_path_env = os.environ["CMAKE_PREFIX_PATH"]
-        cmake_prefix_path = cmake_prefix_path_env.replace(os.pathsep, ";")
         return [
             "#------------------{0}".format("-" * 60),
             "# !!!! This is a generated file, edit at own risk !!!!",
             "#------------------{0}".format("-" * 60),
             "# CMake executable path: {0}".format(self.pkg.spec["cmake"].command.path),
             "#------------------{0}\n".format("-" * 60),
-            cmake_cache_path("CMAKE_PREFIX_PATH", cmake_prefix_path),
-            self.define_cmake_cache_from_variant("CMAKE_BUILD_TYPE", "build_type"),
         ]
 
     def initconfig_package_entries(self):
@@ -301,7 +237,7 @@ def initconfig(self, pkg, spec, prefix):
 
     @property
     def std_cmake_args(self):
-        args = super().std_cmake_args
+        args = super(CachedCMakeBuilder, self).std_cmake_args
         args.extend(["-C", self.cache_path])
         return args
 

lib/spack/spack/build_systems/cmake.py

@@ -5,7 +5,6 @@
 import collections.abc
 import inspect
 import os
-import pathlib
 import platform
 import re
 import sys
@@ -16,6 +15,7 @@
 import spack.build_environment
 import spack.builder
 import spack.package_base
+import spack.util.path
 from spack.directives import build_system, conflicts, depends_on, variant
 from spack.multimethod import when
 
@@ -248,8 +248,7 @@ def std_cmake_args(self):
     @staticmethod
     def std_args(pkg, generator=None):
         """Computes the standard cmake arguments for a generic package"""
-        default_generator = "Ninja" if sys.platform == "win32" else "Unix Makefiles"
+        generator = generator or "Unix Makefiles"
-        generator = generator or default_generator
         valid_primary_generators = ["Unix Makefiles", "Ninja"]
         primary_generator = _extract_primary_generator(generator)
         if primary_generator not in valid_primary_generators:
@@ -272,8 +271,9 @@ def std_args(pkg, generator=None):
         args = [
             "-G",
             generator,
-            define("CMAKE_INSTALL_PREFIX", pathlib.Path(pkg.prefix).as_posix()),
+            define("CMAKE_INSTALL_PREFIX", pkg.prefix),
             define("CMAKE_BUILD_TYPE", build_type),
+            define("BUILD_TESTING", pkg.run_tests),
         ]
 
         # CMAKE_INTERPROCEDURAL_OPTIMIZATION only exists for CMake >= 3.9
@@ -296,46 +296,8 @@ def std_args(pkg, generator=None):
                 define("CMAKE_PREFIX_PATH", spack.build_environment.get_cmake_prefix_path(pkg)),
             ]
         )
-
         return args
 
-    @staticmethod
-    def define_cuda_architectures(pkg):
-        """Returns the str ``-DCMAKE_CUDA_ARCHITECTURES:STRING=(expanded cuda_arch)``.
-
-        ``cuda_arch`` is variant composed of a list of target CUDA architectures and
-        it is declared in the cuda package.
-
-        This method is no-op for cmake<3.18 and when ``cuda_arch`` variant is not set.
-
-        """
-        cmake_flag = str()
-        if "cuda_arch" in pkg.spec.variants and pkg.spec.satisfies("^cmake@3.18:"):
-            cmake_flag = CMakeBuilder.define(
-                "CMAKE_CUDA_ARCHITECTURES", pkg.spec.variants["cuda_arch"].value
-            )
-
-        return cmake_flag
-
-    @staticmethod
-    def define_hip_architectures(pkg):
-        """Returns the str ``-DCMAKE_HIP_ARCHITECTURES:STRING=(expanded amdgpu_target)``.
-
-        ``amdgpu_target`` is variant composed of a list of the target HIP
-        architectures and it is declared in the rocm package.
-
-        This method is no-op for cmake<3.18 and when ``amdgpu_target`` variant is
-        not set.
-
-        """
-        cmake_flag = str()
-        if "amdgpu_target" in pkg.spec.variants and pkg.spec.satisfies("^cmake@3.21:"):
-            cmake_flag = CMakeBuilder.define(
-                "CMAKE_HIP_ARCHITECTURES", pkg.spec.variants["amdgpu_target"].value
-            )
-
-        return cmake_flag
-
     @staticmethod
     def define(cmake_var, value):
         """Return a CMake command line argument that defines a variable.
@@ -450,6 +412,7 @@ def cmake_args(self):
 
             * CMAKE_INSTALL_PREFIX
             * CMAKE_BUILD_TYPE
+            * BUILD_TESTING
 
         which will be set automatically.
         """

lib/spack/spack/build_systems/cuda.py

@@ -102,10 +102,11 @@ def cuda_flags(arch_list):
 
     depends_on("cuda@11.0:", when="cuda_arch=80")
     depends_on("cuda@11.1:", when="cuda_arch=86")
-    depends_on("cuda@11.4:", when="cuda_arch=87")
-    depends_on("cuda@11.8:", when="cuda_arch=89")
 
-    depends_on("cuda@12.0:", when="cuda_arch=90")
+    depends_on("cuda@11.4:", when="cuda_arch=87")
+
+    depends_on("cuda@11.8:", when="cuda_arch=89")
+    depends_on("cuda@11.8:", when="cuda_arch=90")
 
     # From the NVIDIA install guide we know of conflicts for particular
     # platforms (linux, darwin), architectures (x86, powerpc) and compilers
@@ -154,7 +155,7 @@ def cuda_flags(arch_list):
         conflicts("%pgi@:15.3,15.5:", when="+cuda ^cuda@7.5 target=x86_64:")
         conflicts("%pgi@:16.2,16.0:16.3", when="+cuda ^cuda@8 target=x86_64:")
         conflicts("%pgi@:15,18:", when="+cuda ^cuda@9.0:9.1 target=x86_64:")
-        conflicts("%pgi@:16,19:", when="+cuda ^cuda@9.2.88:10.0 target=x86_64:")
+        conflicts("%pgi@:16,19:", when="+cuda ^cuda@9.2.88:10 target=x86_64:")
         conflicts("%pgi@:17,20:", when="+cuda ^cuda@10.1.105:10.2.89 target=x86_64:")
         conflicts("%pgi@:17,21:", when="+cuda ^cuda@11.0.2:11.1.0 target=x86_64:")
         conflicts("%clang@:3.4", when="+cuda ^cuda@:7.5 target=x86_64:")

lib/spack/spack/build_systems/meson.py

@@ -10,7 +10,7 @@
 
 import spack.builder
 import spack.package_base
-from spack.directives import build_system, conflicts, depends_on, variant
+from spack.directives import build_system, depends_on, variant
 from spack.multimethod import when
 
 from ._checks import BaseBuilder, execute_build_time_tests
@@ -47,13 +47,6 @@ class MesonPackage(spack.package_base.PackageBase):
         variant("strip", default=False, description="Strip targets on install")
         depends_on("meson", type="build")
         depends_on("ninja", type="build")
-        # Python detection in meson requires distutils to be importable, but distutils no longer
-        # exists in Python 3.12. In Spack, we can't use setuptools as distutils replacement,
-        # because the distutils-precedence.pth startup file that setuptools ships with is not run
-        # when setuptools is in PYTHONPATH; it has to be in system site-packages. In a future meson
-        # release, the distutils requirement will be dropped, so this conflict can be relaxed.
-        # We have patches to make it work with meson 1.1 and above.
-        conflicts("^python@3.12:", when="^meson@:1.0")
 
     def flags_to_build_system_args(self, flags):
         """Produces a list of all command line arguments to pass the specified
@@ -216,5 +209,5 @@ def install(self, pkg, spec, prefix):
     def check(self):
         """Search Meson-generated files for the target ``test`` and run it if found."""
         with fs.working_dir(self.build_directory):
-            self.pkg._if_ninja_target_execute("test")
+            self._if_ninja_target_execute("test")
-            self.pkg._if_ninja_target_execute("check")
+            self._if_ninja_target_execute("check")

lib/spack/spack/build_systems/nmake.py

@@ -95,7 +95,7 @@ def makefile_root(self):
         return self.stage.source_path
 
     @property
-    def makefile_name(self):
+    def nmakefile_name(self):
         """Name of the current makefile. This is currently an empty value.
         If a project defines this value, it will be used with the /f argument
         to provide nmake an explicit makefile. This is usefule in scenarios where
@@ -126,8 +126,8 @@ def build(self, pkg, spec, prefix):
         """Run "nmake" on the build targets specified by the builder."""
         opts = self.std_nmake_args
         opts += self.nmake_args()
-        if self.makefile_name:
+        if self.nmakefile_name:
-            opts.append("/F{}".format(self.makefile_name))
+            opts.append("/f {}".format(self.nmakefile_name))
         with fs.working_dir(self.build_directory):
             inspect.getmodule(self.pkg).nmake(
                 *opts, *self.build_targets, ignore_quotes=self.ignore_quotes
@@ -139,8 +139,8 @@ def install(self, pkg, spec, prefix):
         opts = self.std_nmake_args
         opts += self.nmake_args()
         opts += self.nmake_install_args()
-        if self.makefile_name:
+        if self.nmakefile_name:
-            opts.append("/F{}".format(self.makefile_name))
+            opts.append("/f {}".format(self.nmakefile_name))
         opts.append(self.define("PREFIX", prefix))
         with fs.working_dir(self.build_directory):
             inspect.getmodule(self.pkg).nmake(

lib/spack/spack/build_systems/oneapi.py

@@ -61,11 +61,6 @@ def component_prefix(self):
         """Path to component <prefix>/<component>/<version>."""
         return self.prefix.join(join_path(self.component_dir, self.spec.version))
 
-    @property
-    def env_script_args(self):
-        """Additional arguments to pass to vars.sh script."""
-        return ()
-
     def install(self, spec, prefix):
         self.install_component(basename(self.url_for_version(spec.version)))
 
@@ -126,10 +121,10 @@ def setup_run_environment(self, env):
            $ source {prefix}/{component}/{version}/env/vars.sh
         """
         # Only if environment modifications are desired (default is +envmods)
-        if "~envmods" not in self.spec:
+        if "+envmods" in self.spec:
             env.extend(
                 EnvironmentModifications.from_sourcing_file(
-                    join_path(self.component_prefix, "env", "vars.sh"), *self.env_script_args
+                    join_path(self.component_prefix, "env", "vars.sh")
                 )
             )
 
@@ -180,7 +175,7 @@ def libs(self):
         return find_libraries("*", root=lib_path, shared=True, recursive=True)
 
 
-class IntelOneApiStaticLibraryList:
+class IntelOneApiStaticLibraryList(object):
     """Provides ld_flags when static linking is needed
 
     Oneapi puts static and dynamic libraries in the same directory, so

lib/spack/spack/build_systems/python.py

@@ -6,7 +6,6 @@
 import os
 import re
 import shutil
-import stat
 from typing import Optional
 
 import archspec
@@ -17,7 +16,6 @@
 
 import spack.builder
 import spack.config
-import spack.deptypes as dt
 import spack.detection
 import spack.multimethod
 import spack.package_base
@@ -25,15 +23,13 @@
 import spack.store
 from spack.directives import build_system, depends_on, extends, maintainers
 from spack.error import NoHeadersError, NoLibrariesError, SpecError
-from spack.install_test import test_part
-from spack.util.executable import Executable
 from spack.version import Version
 
 from ._checks import BaseBuilder, execute_install_time_tests
 
 
 class PythonExtension(spack.package_base.PackageBase):
-    maintainers("adamjstewart")
+    maintainers("adamjstewart", "pradyunsg")
 
     @property
     def import_modules(self):
@@ -171,106 +167,18 @@ def remove_files_from_view(self, view, merge_map):
 
         view.remove_files(to_remove)
 
-    def test_imports(self):
+    def test(self):
         """Attempts to import modules of the installed package."""
 
         # Make sure we are importing the installed modules,
         # not the ones in the source directory
-        python = inspect.getmodule(self).python
         for module in self.import_modules:
-            with test_part(
+            self.run_test(
-                self,
+                inspect.getmodule(self).python.path,
-                f"test_imports_{module}",
+                ["-c", "import {0}".format(module)],
-                purpose=f"checking import of {module}",
+                purpose="checking import of {0}".format(module),
                 work_dir="spack-test",
-            ):
+            )
-                python("-c", f"import {module}")
-
-    def update_external_dependencies(self, extendee_spec=None):
-        """
-        Ensure all external python packages have a python dependency
-
-        If another package in the DAG depends on python, we use that
-        python for the dependency of the external. If not, we assume
-        that the external PythonPackage is installed into the same
-        directory as the python it depends on.
-        """
-        # TODO: Include this in the solve, rather than instantiating post-concretization
-        if "python" not in self.spec:
-            if extendee_spec:
-                python = extendee_spec
-            elif "python" in self.spec.root:
-                python = self.spec.root["python"]
-            else:
-                python = self.get_external_python_for_prefix()
-                if not python.concrete:
-                    repo = spack.repo.PATH.repo_for_pkg(python)
-                    python.namespace = repo.namespace
-
-                    # Ensure architecture information is present
-                    if not python.architecture:
-                        host_platform = spack.platforms.host()
-                        host_os = host_platform.operating_system("default_os")
-                        host_target = host_platform.target("default_target")
-                        python.architecture = spack.spec.ArchSpec(
-                            (str(host_platform), str(host_os), str(host_target))
-                        )
-                    else:
-                        if not python.architecture.platform:
-                            python.architecture.platform = spack.platforms.host()
-                        if not python.architecture.os:
-                            python.architecture.os = "default_os"
-                        if not python.architecture.target:
-                            python.architecture.target = archspec.cpu.host().family.name
-
-                    # Ensure compiler information is present
-                    if not python.compiler:
-                        python.compiler = self.spec.compiler
-
-                    python.external_path = self.spec.external_path
-                    python._mark_concrete()
-            self.spec.add_dependency_edge(python, depflag=dt.BUILD | dt.LINK | dt.RUN, virtuals=())
-
-    def get_external_python_for_prefix(self):
-        """
-        For an external package that extends python, find the most likely spec for the python
-        it depends on.
-
-        First search: an "installed" external that shares a prefix with this package
-        Second search: a configured external that shares a prefix with this package
-        Third search: search this prefix for a python package
-
-        Returns:
-          spack.spec.Spec: The external Spec for python most likely to be compatible with self.spec
-        """
-        python_externals_installed = [
-            s for s in spack.store.STORE.db.query("python") if s.prefix == self.spec.external_path
-        ]
-        if python_externals_installed:
-            return python_externals_installed[0]
-
-        python_external_config = spack.config.get("packages:python:externals", [])
-        python_externals_configured = [
-            spack.spec.parse_with_version_concrete(item["spec"])
-            for item in python_external_config
-            if item["prefix"] == self.spec.external_path
-        ]
-        if python_externals_configured:
-            return python_externals_configured[0]
-
-        python_externals_detection = spack.detection.by_path(
-            ["python"], path_hints=[self.spec.external_path]
-        )
-
-        python_externals_detected = [
-            d.spec
-            for d in python_externals_detection.get("python", [])
-            if d.prefix == self.spec.external_path
-        ]
-        if python_externals_detected:
-            return python_externals_detected[0]
-
-        raise StopIteration("No external python could be detected for %s to depend on" % self.spec)
 
 
 class PythonPackage(PythonExtension):
@@ -317,16 +225,99 @@ def list_url(cls):
             name = cls.pypi.split("/")[0]
             return "https://pypi.org/simple/" + name + "/"
 
+    def update_external_dependencies(self, extendee_spec=None):
+        """
+        Ensure all external python packages have a python dependency
+
+        If another package in the DAG depends on python, we use that
+        python for the dependency of the external. If not, we assume
+        that the external PythonPackage is installed into the same
+        directory as the python it depends on.
+        """
+        # TODO: Include this in the solve, rather than instantiating post-concretization
+        if "python" not in self.spec:
+            if extendee_spec:
+                python = extendee_spec
+            elif "python" in self.spec.root:
+                python = self.spec.root["python"]
+            else:
+                python = self.get_external_python_for_prefix()
+                if not python.concrete:
+                    repo = spack.repo.path.repo_for_pkg(python)
+                    python.namespace = repo.namespace
+
+                    # Ensure architecture information is present
+                    if not python.architecture:
+                        host_platform = spack.platforms.host()
+                        host_os = host_platform.operating_system("default_os")
+                        host_target = host_platform.target("default_target")
+                        python.architecture = spack.spec.ArchSpec(
+                            (str(host_platform), str(host_os), str(host_target))
+                        )
+                    else:
+                        if not python.architecture.platform:
+                            python.architecture.platform = spack.platforms.host()
+                        if not python.architecture.os:
+                            python.architecture.os = "default_os"
+                        if not python.architecture.target:
+                            python.architecture.target = archspec.cpu.host().family.name
+
+                    # Ensure compiler information is present
+                    if not python.compiler:
+                        python.compiler = self.spec.compiler
+
+                    python.external_path = self.spec.external_path
+                    python._mark_concrete()
+            self.spec.add_dependency_edge(python, deptypes=("build", "link", "run"))
+
+    def get_external_python_for_prefix(self):
+        """
+        For an external package that extends python, find the most likely spec for the python
+        it depends on.
+
+        First search: an "installed" external that shares a prefix with this package
+        Second search: a configured external that shares a prefix with this package
+        Third search: search this prefix for a python package
+
+        Returns:
+          spack.spec.Spec: The external Spec for python most likely to be compatible with self.spec
+        """
+        python_externals_installed = [
+            s for s in spack.store.db.query("python") if s.prefix == self.spec.external_path
+        ]
+        if python_externals_installed:
+            return python_externals_installed[0]
+
+        python_external_config = spack.config.get("packages:python:externals", [])
+        python_externals_configured = [
+            spack.spec.parse_with_version_concrete(item["spec"])
+            for item in python_external_config
+            if item["prefix"] == self.spec.external_path
+        ]
+        if python_externals_configured:
+            return python_externals_configured[0]
+
+        python_externals_detection = spack.detection.by_executable(
+            [spack.repo.path.get_pkg_class("python")], path_hints=[self.spec.external_path]
+        )
+
+        python_externals_detected = [
+            d.spec
+            for d in python_externals_detection.get("python", [])
+            if d.prefix == self.spec.external_path
+        ]
+        if python_externals_detected:
+            return python_externals_detected[0]
+
+        raise StopIteration("No external python could be detected for %s to depend on" % self.spec)
+
     @property
     def headers(self):
         """Discover header files in platlib."""
 
-        # Remove py- prefix in package name
-        name = self.spec.name[3:]
-
         # Headers may be in either location
-        include = self.prefix.join(self.spec["python"].package.include).join(name)
+        include = self.prefix.join(self.spec["python"].package.include)
-        platlib = self.prefix.join(self.spec["python"].package.platlib).join(name)
+        platlib = self.prefix.join(self.spec["python"].package.platlib)
         headers = fs.find_all_headers(include) + fs.find_all_headers(platlib)
 
         if headers:
@@ -340,64 +331,18 @@ def libs(self):
         """Discover libraries in platlib."""
 
         # Remove py- prefix in package name
-        name = self.spec.name[3:]
+        library = "lib" + self.spec.name[3:].replace("-", "?")
+        root = self.prefix.join(self.spec["python"].package.platlib)
 
-        root = self.prefix.join(self.spec["python"].package.platlib).join(name)
+        for shared in [True, False]:
-
+            libs = fs.find_libraries(library, root, shared=shared, recursive=True)
-        libs = fs.find_all_libraries(root, recursive=True)
+            if libs:
-
+                return libs
-        if libs:
-            return libs
 
         msg = "Unable to recursively locate {} libraries in {}"
         raise NoLibrariesError(msg.format(self.spec.name, root))
 
 
-def fixup_shebangs(path: str, old_interpreter: bytes, new_interpreter: bytes):
-    # Recurse into the install prefix and fixup shebangs
-    exe = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
-    dirs = [path]
-    hardlinks = set()
-
-    while dirs:
-        with os.scandir(dirs.pop()) as entries:
-            for entry in entries:
-                if entry.is_dir(follow_symlinks=False):
-                    dirs.append(entry.path)
-                    continue
-
-                # Only consider files, not symlinks
-                if not entry.is_file(follow_symlinks=False):
-                    continue
-
-                lstat = entry.stat(follow_symlinks=False)
-
-                # Skip over files that are not executable
-                if not (lstat.st_mode & exe):
-                    continue
-
-                # Don't modify hardlinks more than once
-                if lstat.st_nlink > 1:
-                    key = (lstat.st_ino, lstat.st_dev)
-                    if key in hardlinks:
-                        continue
-                    hardlinks.add(key)
-
-                # Finally replace shebangs if any.
-                with open(entry.path, "rb+") as f:
-                    contents = f.read(2)
-                    if contents != b"#!":
-                        continue
-                    contents += f.read()
-
-                    if old_interpreter not in contents:
-                        continue
-
-                    f.seek(0)
-                    f.write(contents.replace(old_interpreter, new_interpreter))
-                    f.truncate()
-
-
 @spack.builder.builder("python_pip")
 class PythonPipBuilder(BaseBuilder):
     phases = ("install",)
@@ -453,8 +398,7 @@ def build_directory(self):
 
     def config_settings(self, spec, prefix):
         """Configuration settings to be passed to the PEP 517 build backend.
-
+        Requires pip 22.1+, which requires Python 3.7+.
-        Requires pip 22.1 or newer.
 
         Args:
             spec (spack.spec.Spec): build spec
@@ -468,8 +412,6 @@ def config_settings(self, spec, prefix):
     def install_options(self, spec, prefix):
         """Extra arguments to be supplied to the setup.py install command.
 
-        Requires pip 23.0 or older.
-
         Args:
             spec (spack.spec.Spec): build spec
             prefix (spack.util.prefix.Prefix): installation prefix
@@ -483,8 +425,6 @@ def global_options(self, spec, prefix):
         """Extra global options to be supplied to the setup.py call before the install
         or bdist_wheel command.
 
-        Deprecated in pip 23.1.
-
         Args:
             spec (spack.spec.Spec): build spec
             prefix (spack.util.prefix.Prefix): installation prefix
@@ -494,36 +434,8 @@ def global_options(self, spec, prefix):
         """
         return []
 
-    @property
-    def _build_venv_path(self):
-        """Return the path to the virtual environment used for building when
-        python is external."""
-        return os.path.join(self.spec.package.stage.path, "build_env")
-
-    @property
-    def _build_venv_python(self) -> Executable:
-        """Return the Python executable in the build virtual environment when
-        python is external."""
-        return Executable(os.path.join(self._build_venv_path, "bin", "python"))
-
     def install(self, pkg, spec, prefix):
         """Install everything from build directory."""
-        python: Executable = spec["python"].command
-        # Since we invoke pip with --no-build-isolation, we have to make sure that pip cannot
-        # execute hooks from user and system site-packages.
-        if spec["python"].external:
-            # There are no environment variables to disable the system site-packages, so we use a
-            # virtual environment instead. The downside of this approach is that pip produces
-            # incorrect shebangs that refer to the virtual environment, which we have to fix up.
-            python("-m", "venv", "--without-pip", self._build_venv_path)
-            pip = self._build_venv_python
-        else:
-            # For a Spack managed Python, system site-packages is empty/unused by design, so it
-            # suffices to disable user site-packages, for which there is an environment variable.
-            pip = python
-            pip.add_default_env("PYTHONNOUSERSITE", "1")
-        pip.add_default_arg("-m")
-        pip.add_default_arg("pip")
 
         args = PythonPipBuilder.std_args(pkg) + ["--prefix=" + prefix]
 
@@ -547,31 +459,8 @@ def install(self, pkg, spec, prefix):
         else:
             args.append(".")
 
+        pip = inspect.getmodule(pkg).pip
         with fs.working_dir(self.build_directory):
             pip(*args)
 
-    @spack.builder.run_after("install")
-    def fixup_shebangs_pointing_to_build(self):
-        """When installing a package using an external python, we use a temporary virtual
-        environment which improves build isolation. The downside is that pip produces shebangs
-        that point to the temporary virtual environment. This method fixes them up to point to the
-        underlying Python."""
-        # No need to fixup shebangs if no build venv was used. (this post install function also
-        # runs when install was overridden in another package, so check existence of the venv path)
-        if not os.path.exists(self._build_venv_path):
-            return
-
-        # Use sys.executable, since that's what pip uses.
-        interpreter = (
-            lambda python: python("-c", "import sys; print(sys.executable)", output=str)
-            .strip()
-            .encode("utf-8")
-        )
-
-        fixup_shebangs(
-            path=self.spec.prefix,
-            old_interpreter=interpreter(self._build_venv_python),
-            new_interpreter=interpreter(self.spec["python"].command),
-        )
-
     spack.builder.run_after("install")(execute_install_time_tests)

lib/spack/spack/build_systems/qmake.py

@@ -28,7 +28,7 @@ class QMakePackage(spack.package_base.PackageBase):
 
     build_system("qmake")
 
-    depends_on("qmake", type="build", when="build_system=qmake")
+    depends_on("qt", type="build", when="build_system=qmake")
 
 
 @spack.builder.builder("qmake")

lib/spack/spack/build_systems/r.py

@@ -7,7 +7,7 @@
 
 import llnl.util.lang as lang
 
-from spack.directives import extends
+from spack.directives import extends, maintainers
 
 from .generic import GenericBuilder, Package
 
@@ -71,6 +71,8 @@ class RPackage(Package):
 
     GenericBuilder = RBuilder
 
+    maintainers("glennpj")
+
     #: This attribute is used in UI queries that need to know the build
     #: system base class
     build_system_class = "RPackage"

lib/spack/spack/build_systems/racket.py

@@ -10,10 +10,9 @@
 import llnl.util.tty as tty
 
 import spack.builder
-from spack.build_environment import SPACK_NO_PARALLEL_MAKE
+from spack.build_environment import SPACK_NO_PARALLEL_MAKE, determine_number_of_jobs
 from spack.directives import build_system, extends, maintainers
 from spack.package_base import PackageBase
-from spack.util.cpus import determine_number_of_jobs
 from spack.util.environment import env_flag
 from spack.util.executable import Executable, ProcessError
 
@@ -64,7 +63,7 @@ class RacketBuilder(spack.builder.Builder):
 
     @property
     def subdirectory(self):
-        if self.pkg.racket_name:
+        if self.racket_name:
             return "pkgs/{0}".format(self.pkg.racket_name)
         return None
 
@@ -93,7 +92,7 @@ def install(self, pkg, spec, prefix):
                 "--copy",
                 "-i",
                 "-j",
-                str(determine_number_of_jobs(parallel=parallel)),
+                str(determine_number_of_jobs(parallel)),
                 "--",
                 os.getcwd(),
             ]

lib/spack/spack/build_systems/rocm.py

@@ -140,6 +140,8 @@ class ROCmPackage(PackageBase):
     depends_on("hsa-rocr-dev", when="+rocm")
     depends_on("hip +rocm", when="+rocm")
 
+    conflicts("^blt@:0.3.6", when="+rocm")
+
     # need amd gpu type for rocm builds
     conflicts("amdgpu_target=none", when="+rocm")
 

lib/spack/spack/build_systems/sip.py

@@ -7,14 +7,12 @@
 import re
 
 import llnl.util.tty as tty
-from llnl.util.filesystem import find, working_dir
+from llnl.util.filesystem import find, join_path, working_dir
 
 import spack.builder
-import spack.install_test
 import spack.package_base
 from spack.directives import build_system, depends_on, extends
 from spack.multimethod import when
-from spack.util.executable import Executable
 
 from ._checks import BaseBuilder, execute_install_time_tests
 
@@ -32,16 +30,17 @@ class SIPPackage(spack.package_base.PackageBase):
     #: Name of private sip module to install alongside package
     sip_module = "sip"
 
-    #: Callback names for install-time testing
+    #: Callback names for install-time test
-    install_time_test_callbacks = ["test_imports"]
+    install_time_test_callbacks = ["test"]
     #: Legacy buildsystem attribute used to deserialize and install old specs
     legacy_buildsystem = "sip"
 
     build_system("sip")
 
     with when("build_system=sip"):
-        extends("python", type=("build", "link", "run"))
+        extends("python")
-        depends_on("py-sip", type="build")
+        depends_on("qt")
+        depends_on("py-sip")
 
     @property
     def import_modules(self):
@@ -88,20 +87,18 @@ def python(self, *args, **kwargs):
         """The python ``Executable``."""
         inspect.getmodule(self).python(*args, **kwargs)
 
-    def test_imports(self):
+    def test(self):
         """Attempts to import modules of the installed package."""
 
         # Make sure we are importing the installed modules,
         # not the ones in the source directory
-        python = inspect.getmodule(self).python
         for module in self.import_modules:
-            with spack.install_test.test_part(
+            self.run_test(
-                self,
+                inspect.getmodule(self).python.path,
-                "test_imports_{0}".format(module),
+                ["-c", "import {0}".format(module)],
                 purpose="checking import of {0}".format(module),
                 work_dir="spack-test",
-            ):
+            )
-                python("-c", "import {0}".format(module))
 
 
 @spack.builder.builder("sip")
@@ -113,13 +110,13 @@ class SIPBuilder(BaseBuilder):
     * install
 
     The configure phase already adds a set of default flags. To see more
-    options, run ``sip-build --help``.
+    options, run ``python configure.py --help``.
     """
 
     phases = ("configure", "build", "install")
 
     #: Names associated with package methods in the old build-system format
-    legacy_methods = ("configure_args", "build_args", "install_args")
+    legacy_methods = ("configure_file", "configure_args", "build_args", "install_args")
 
     #: Names associated with package attributes in the old build-system format
     legacy_attributes = (
@@ -130,17 +127,34 @@ class SIPBuilder(BaseBuilder):
         "build_directory",
     )
 
-    build_directory = "build"
+    def configure_file(self):
+        """Returns the name of the configure file to use."""
+        return "configure.py"
 
     def configure(self, pkg, spec, prefix):
         """Configure the package."""
+        configure = self.configure_file()
 
-        # https://www.riverbankcomputing.com/static/Docs/sip/command_line_tools.html
+        args = self.configure_args()
-        args = ["--verbose", "--target-dir", inspect.getmodule(self.pkg).python_platlib]
-        args.extend(self.configure_args())
 
-        sip_build = Executable(spec["py-sip"].prefix.bin.join("sip-build"))
+        args.extend(
-        sip_build(*args)
+            [
+                "--verbose",
+                "--confirm-license",
+                "--qmake",
+                spec["qt"].prefix.bin.qmake,
+                "--sip",
+                spec["py-sip"].prefix.bin.sip,
+                "--sip-incdir",
+                join_path(spec["py-sip"].prefix, spec["python"].package.include),
+                "--bindir",
+                prefix.bin,
+                "--destdir",
+                inspect.getmodule(self.pkg).python_platlib,
+            ]
+        )
+
+        self.pkg.python(configure, *args)
 
     def configure_args(self):
         """Arguments to pass to configure."""
@@ -150,8 +164,7 @@ def build(self, pkg, spec, prefix):
         """Build the package."""
         args = self.build_args()
 
-        with working_dir(self.build_directory):
+        inspect.getmodule(self.pkg).make(*args)
-            inspect.getmodule(self.pkg).make(*args)
 
     def build_args(self):
         """Arguments to pass to build."""
@@ -161,11 +174,21 @@ def install(self, pkg, spec, prefix):
         """Install the package."""
         args = self.install_args()
 
-        with working_dir(self.build_directory):
+        inspect.getmodule(self.pkg).make("install", parallel=False, *args)
-            inspect.getmodule(self.pkg).make("install", *args)
 
     def install_args(self):
         """Arguments to pass to install."""
         return []
 
     spack.builder.run_after("install")(execute_install_time_tests)
+
+    @spack.builder.run_after("install")
+    def extend_path_setup(self):
+        # See github issue #14121 and PR #15297
+        module = self.pkg.spec["py-sip"].variants["module"].value
+        if module != "sip":
+            module = module.split(".")[0]
+            with working_dir(inspect.getmodule(self.pkg).python_platlib):
+                with open(os.path.join(module, "__init__.py"), "a") as f:
+                    f.write("from pkgutil import extend_path\n")
+                    f.write("__path__ = extend_path(__path__, __name__)\n")

lib/spack/spack/builder.py

@@ -63,7 +63,7 @@ def create(pkg):
     return _BUILDERS[id(pkg)]
 
 
-class _PhaseAdapter:
+class _PhaseAdapter(object):
     def __init__(self, builder, phase_fn):
         self.builder = builder
         self.phase_fn = phase_fn
@@ -115,7 +115,7 @@ class hierarchy (look at AspellDictPackage for an example of that)
     # package. The semantic should be the same as the method in the base builder were still
     # present in the base class of the package.
 
-    class _ForwardToBaseBuilder:
+    class _ForwardToBaseBuilder(object):
         def __init__(self, wrapped_pkg_object, root_builder):
             self.wrapped_package_object = wrapped_pkg_object
             self.root_builder = root_builder
@@ -188,7 +188,7 @@ def __init__(self, pkg):
             # Attribute containing the package wrapped in dispatcher with a `__getattr__`
             # method that will forward certain calls to the default builder.
             self.pkg_with_dispatcher = _ForwardToBaseBuilder(pkg, root_builder=self)
-            super().__init__(pkg)
+            super(Adapter, self).__init__(pkg)
 
         # These two methods don't follow the (self, spec, prefix) signature of phases nor
         # the (self) signature of methods, so they are added explicitly to avoid using a
@@ -388,7 +388,7 @@ def __new__(mcs, name, bases, attr_dict):
         return super(_PackageAdapterMeta, mcs).__new__(mcs, name, bases, attr_dict)
 
 
-class InstallationPhase:
+class InstallationPhase(object):
     """Manages a single phase of the installation.
 
     This descriptor stores at creation time the name of the method it should
@@ -530,9 +530,9 @@ def setup_build_environment(self, env):
                 modifications to be applied when the package is built. Package authors
                 can call methods on it to alter the build environment.
         """
-        if not hasattr(super(), "setup_build_environment"):
+        if not hasattr(super(Builder, self), "setup_build_environment"):
             return
-        super().setup_build_environment(env)
+        super(Builder, self).setup_build_environment(env)
 
     def setup_dependent_build_environment(self, env, dependent_spec):
         """Sets up the build environment of packages that depend on this one.
@@ -563,9 +563,9 @@ def setup_dependent_build_environment(self, env, dependent_spec):
                 the dependent's state. Note that *this* package's spec is
                 available as ``self.spec``
         """
-        if not hasattr(super(), "setup_dependent_build_environment"):
+        if not hasattr(super(Builder, self), "setup_dependent_build_environment"):
             return
-        super().setup_dependent_build_environment(env, dependent_spec)
+        super(Builder, self).setup_dependent_build_environment(env, dependent_spec)
 
     def __getitem__(self, idx):
         key = self.phases[idx]

lib/spack/spack/caches.py

@@ -20,9 +20,9 @@
 
 
 def misc_cache_location():
-    """The ``MISC_CACHE`` is Spack's cache for small data.
+    """The ``misc_cache`` is Spack's cache for small data.
 
-    Currently the ``MISC_CACHE`` stores indexes for virtual dependency
+    Currently the ``misc_cache`` stores indexes for virtual dependency
     providers and for which packages provide which tags.
     """
     path = spack.config.get("config:misc_cache", spack.paths.default_misc_cache_path)
@@ -35,7 +35,7 @@ def _misc_cache():
 
 
 #: Spack's cache for small data
-MISC_CACHE: Union[
+misc_cache: Union[
     spack.util.file_cache.FileCache, llnl.util.lang.Singleton
 ] = llnl.util.lang.Singleton(_misc_cache)
 
@@ -58,7 +58,7 @@ def _fetch_cache():
     return spack.fetch_strategy.FsCache(path)
 
 
-class MirrorCache:
+class MirrorCache(object):
     def __init__(self, root, skip_unstable_versions):
         self.root = os.path.abspath(root)
         self.skip_unstable_versions = skip_unstable_versions
@@ -91,6 +91,6 @@ def symlink(self, mirror_ref):
 
 
 #: Spack's local cache for downloaded source archives
-FETCH_CACHE: Union[
+fetch_cache: Union[
     spack.fetch_strategy.FsCache, llnl.util.lang.Singleton
 ] = llnl.util.lang.Singleton(_fetch_cache)

lib/spack/spack/cmd/__init__.py

@@ -3,6 +3,8 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from __future__ import print_function
+
 import argparse
 import os
 import re
@@ -11,7 +13,6 @@
 from textwrap import dedent
 from typing import List, Match, Tuple
 
-import llnl.string
 import llnl.util.tty as tty
 from llnl.util.filesystem import join_path
 from llnl.util.lang import attr_setdefault, index_by
@@ -30,6 +31,7 @@
 import spack.user_environment as uenv
 import spack.util.spack_json as sjson
 import spack.util.spack_yaml as syaml
+import spack.util.string
 
 # cmd has a submodule called "list" so preserve the python list module
 python_list = list
@@ -147,7 +149,7 @@ def get_command(cmd_name):
     return getattr(get_module(cmd_name), pname)
 
 
-class _UnquotedFlags:
+class _UnquotedFlags(object):
     """Use a heuristic in `.extract()` to detect whether the user is trying to set
     multiple flags like the docker ENV attribute allows (e.g. 'cflags=-Os -pipe').
 
@@ -273,9 +275,9 @@ def disambiguate_spec_from_hashes(spec, hashes, local=False, installed=True, fir
             See ``spack.database.Database._query`` for details.
     """
     if local:
-        matching_specs = spack.store.STORE.db.query_local(spec, hashes=hashes, installed=installed)
+        matching_specs = spack.store.db.query_local(spec, hashes=hashes, installed=installed)
     else:
-        matching_specs = spack.store.STORE.db.query(spec, hashes=hashes, installed=installed)
+        matching_specs = spack.store.db.query(spec, hashes=hashes, installed=installed)
     if not matching_specs:
         tty.die("Spec '%s' matches no installed packages." % spec)
 
@@ -291,7 +293,7 @@ def ensure_single_spec_or_die(spec, matching_specs):
     if len(matching_specs) <= 1:
         return
 
-    format_string = "{name}{@version}{%compiler.name}{@compiler.version}{arch=architecture}"
+    format_string = "{name}{@version}{%compiler}{arch=architecture}"
     args = ["%s matches multiple packages." % spec, "Matching packages:"]
     args += [
         colorize("  @K{%s} " % s.dag_hash(7)) + s.cformat(format_string) for s in matching_specs
@@ -342,9 +344,9 @@ def iter_groups(specs, indent, all_headers):
             print()
 
         header = "%s{%s} / %s{%s}" % (
-            spack.spec.ARCHITECTURE_COLOR,
+            spack.spec.architecture_color,
             architecture if architecture else "no arch",
-            spack.spec.COMPILER_COLOR,
+            spack.spec.compiler_color,
             f"{compiler.display_str}" if compiler else "no compiler",
         )
 
@@ -383,7 +385,7 @@ def display_specs(specs, args=None, **kwargs):
         deps (bool): Display dependencies with specs
         long (bool): Display short hashes with specs
         very_long (bool): Display full hashes with specs (supersedes ``long``)
-        namespaces (bool): Print namespaces along with names
+        namespace (bool): Print namespaces along with names
         show_flags (bool): Show compiler flags with specs
         variants (bool): Show variants with specs
         indent (int): indent each line this much
@@ -407,7 +409,7 @@ def get_arg(name, default=None):
     paths = get_arg("paths", False)
     deps = get_arg("deps", False)
     hashes = get_arg("long", False)
-    namespaces = get_arg("namespaces", False)
+    namespace = get_arg("namespace", False)
     flags = get_arg("show_flags", False)
     full_compiler = get_arg("show_full_compiler", False)
     variants = get_arg("variants", False)
@@ -428,7 +430,7 @@ def get_arg(name, default=None):
 
     format_string = get_arg("format", None)
     if format_string is None:
-        nfmt = "{fullname}" if namespaces else "{name}"
+        nfmt = "{fullname}" if namespace else "{name}"
         ffmt = ""
         if full_compiler or flags:
             ffmt += "{%compiler.name}"
@@ -473,7 +475,7 @@ def format_list(specs):
         out = ""
         # getting lots of prefixes requires DB lookups. Ensure
         # all spec.prefix calls are in one transaction.
-        with spack.store.STORE.db.read_transaction():
+        with spack.store.db.read_transaction():
             for string, spec in formatted:
                 if not string:
                     # print newline from above
@@ -516,7 +518,7 @@ def print_how_many_pkgs(specs, pkg_type=""):
             category, e.g. if pkg_type is "installed" then the message
             would be "3 installed packages"
     """
-    tty.msg("%s" % llnl.string.plural(len(specs), pkg_type + " package"))
+    tty.msg("%s" % spack.util.string.plural(len(specs), pkg_type + " package"))
 
 
 def spack_is_git_repo():
@@ -545,7 +547,7 @@ class PythonNameError(spack.error.SpackError):
 
     def __init__(self, name):
         self.name = name
-        super().__init__("{0} is not a permissible Python name.".format(name))
+        super(PythonNameError, self).__init__("{0} is not a permissible Python name.".format(name))
 
 
 class CommandNameError(spack.error.SpackError):
@@ -553,7 +555,9 @@ class CommandNameError(spack.error.SpackError):
 
     def __init__(self, name):
         self.name = name
-        super().__init__("{0} is not a permissible Spack command name.".format(name))
+        super(CommandNameError, self).__init__(
+            "{0} is not a permissible Spack command name.".format(name)
+        )
 
 
 ########################################
@@ -584,14 +588,14 @@ def require_active_env(cmd_name):
 
     if env:
         return env
-
+    else:
-    tty.die(
+        tty.die(
-        "`spack %s` requires an environment" % cmd_name,
+            "`spack %s` requires an environment" % cmd_name,
-        "activate an environment first:",
+            "activate an environment first:",
-        "    spack env activate ENV",
+            "    spack env activate ENV",
-        "or use:",
+            "or use:",
-        "    spack -e ENV %s ..." % cmd_name,
+            "    spack -e ENV %s ..." % cmd_name,
-    )
+        )
 
 
 def find_environment(args):

lib/spack/spack/cmd/arch.py

@@ -3,6 +3,8 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from __future__ import print_function
+
 import collections
 
 import archspec.cpu

lib/spack/spack/cmd/audit.py

@@ -3,7 +3,6 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 import llnl.util.tty as tty
-import llnl.util.tty.colify
 import llnl.util.tty.color as cl
 
 import spack.audit
@@ -21,15 +20,6 @@ def setup_parser(subparser):
     # Audit configuration files
     sp.add_parser("configs", help="audit configuration files")
 
-    # Audit package recipes
-    external_parser = sp.add_parser("externals", help="check external detection in packages")
-    external_parser.add_argument(
-        "--list",
-        action="store_true",
-        dest="list_externals",
-        help="if passed, list which packages have detection tests",
-    )
-
     # Https and other linting
     https_parser = sp.add_parser("packages-https", help="check https in packages")
     https_parser.add_argument(
@@ -39,7 +29,7 @@ def setup_parser(subparser):
     # Audit package recipes
     pkg_parser = sp.add_parser("packages", help="audit package recipes")
 
-    for group in [pkg_parser, https_parser, external_parser]:
+    for group in [pkg_parser, https_parser]:
         group.add_argument(
             "name",
             metavar="PKG",
@@ -57,7 +47,7 @@ def configs(parser, args):
 
 
 def packages(parser, args):
-    pkgs = args.name or spack.repo.PATH.all_package_names()
+    pkgs = args.name or spack.repo.path.all_package_names()
     reports = spack.audit.run_group(args.subcommand, pkgs=pkgs)
     _process_reports(reports)
 
@@ -67,19 +57,7 @@ def packages_https(parser, args):
     if not args.check_all and not args.name:
         tty.die("Please specify one or more packages to audit, or --all.")
 
-    pkgs = args.name or spack.repo.PATH.all_package_names()
+    pkgs = args.name or spack.repo.path.all_package_names()
-    reports = spack.audit.run_group(args.subcommand, pkgs=pkgs)
-    _process_reports(reports)
-
-
-def externals(parser, args):
-    if args.list_externals:
-        msg = "@*{The following packages have detection tests:}"
-        tty.msg(cl.colorize(msg))
-        llnl.util.tty.colify.colify(spack.audit.packages_with_detection_tests(), indent=2)
-        return
-
-    pkgs = args.name or spack.repo.PATH.all_package_names()
     reports = spack.audit.run_group(args.subcommand, pkgs=pkgs)
     _process_reports(reports)
 
@@ -100,7 +78,6 @@ def list(parser, args):
 def audit(parser, args):
     subcommands = {
         "configs": configs,
-        "externals": externals,
         "packages": packages,
         "packages-https": packages_https,
         "list": list,

lib/spack/spack/cmd/blame.py

@@ -59,7 +59,7 @@ def setup_parser(subparser):
 
     subparser.add_argument(
         "package_or_file",
-        help="name of package to show contributions for, or path to a file in the spack repo",
+        help="name of package to show contributions for, " "or path to a file in the spack repo",
     )
 
 
@@ -126,7 +126,7 @@ def blame(parser, args):
             blame_file = path
 
     if not blame_file:
-        pkg_cls = spack.repo.PATH.get_pkg_class(args.package_or_file)
+        pkg_cls = spack.repo.path.get_pkg_class(args.package_or_file)
         blame_file = pkg_cls.module.__file__.rstrip("c")  # .pyc -> .py
 
     # get git blame for the package

lib/spack/spack/cmd/bootstrap.py

@@ -2,9 +2,10 @@
 # Spack Project Developers. See the top-level COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
+from __future__ import print_function
+
 import os.path
 import shutil
-import sys
 import tempfile
 
 import llnl.util.filesystem
@@ -69,10 +70,11 @@
 
 def _add_scope_option(parser):
     scopes = spack.config.scopes()
+    scopes_metavar = spack.config.scopes_metavar
     parser.add_argument(
         "--scope",
         choices=scopes,
-        metavar=spack.config.SCOPES_METAVAR,
+        metavar=scopes_metavar,
         help="configuration scope to read/modify",
     )
 
@@ -169,7 +171,7 @@ def _reset(args):
         if not ok_to_continue:
             raise RuntimeError("Aborting")
 
-    for scope in spack.config.CONFIG.file_scopes:
+    for scope in spack.config.config.file_scopes:
         # The default scope should stay untouched
         if scope.name == "defaults":
             continue
@@ -186,7 +188,7 @@ def _reset(args):
         if os.path.exists(bootstrap_yaml):
             shutil.move(bootstrap_yaml, backup_file)
 
-        spack.config.CONFIG.clear_caches()
+        spack.config.config.clear_caches()
 
 
 def _root(args):
@@ -326,7 +328,6 @@ def _status(args):
     if missing:
         print(llnl.util.tty.color.colorize(legend))
         print()
-        sys.exit(1)
 
 
 def _add(args):

lib/spack/spack/cmd/buildcache.py

@@ -2,18 +2,15 @@
 # Spack Project Developers. See the top-level COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
-import argparse
 import glob
 import json
 import os
 import shutil
 import sys
 import tempfile
-from typing import List
 
 import llnl.util.tty as tty
 import llnl.util.tty.color as clr
-from llnl.string import plural
 from llnl.util.lang import elide_list
 
 import spack.binary_distribution as bindist
@@ -21,7 +18,7 @@
 import spack.cmd.common.arguments as arguments
 import spack.config
 import spack.environment as ev
-import spack.error
+import spack.hash_types as ht
 import spack.mirror
 import spack.relocate
 import spack.repo
@@ -31,68 +28,111 @@
 import spack.util.url as url_util
 import spack.util.web as web_util
 from spack.cmd import display_specs
+from spack.error import SpecError
 from spack.spec import Spec, save_dependency_specfiles
 from spack.stage import Stage
+from spack.util.string import plural
 
 description = "create, download and install binary packages"
 section = "packaging"
 level = "long"
 
 
-def setup_parser(subparser: argparse.ArgumentParser):
+def setup_parser(subparser):
-    setattr(setup_parser, "parser", subparser)
+    setup_parser.parser = subparser
     subparsers = subparser.add_subparsers(help="buildcache sub-commands")
 
     push = subparsers.add_parser("push", aliases=["create"], help=push_fn.__doc__)
-    push.add_argument("-f", "--force", action="store_true", help="overwrite tarball if it exists")
+    # TODO: remove from Spack 0.21
+    push.add_argument(
+        "-r",
+        "--rel",
+        action="store_true",
+        help="make all rpaths relative before creating tarballs. (deprecated)",
+    )
+    push.add_argument("-f", "--force", action="store_true", help="overwrite tarball if it exists.")
+    push.add_argument(
+        "-u", "--unsigned", action="store_true", help="push unsigned buildcache tarballs"
+    )
     push.add_argument(
-        "--allow-root",
         "-a",
+        "--allow-root",
         action="store_true",
         help="allow install root string in binary files after RPATH substitution",
     )
-    push_sign = push.add_mutually_exclusive_group(required=False)
+    push.add_argument(
-    push_sign.add_argument(
+        "-k", "--key", metavar="key", type=str, default=None, help="Key for signing."
-        "--unsigned", "-u", action="store_true", help="push unsigned buildcache tarballs"
     )
-    push_sign.add_argument(
+    output = push.add_mutually_exclusive_group(required=False)
-        "--key", "-k", metavar="key", type=str, default=None, help="key for signing"
+    # TODO: remove from Spack 0.21
+    output.add_argument(
+        "-d",
+        "--directory",
+        metavar="directory",
+        dest="mirror_flag",
+        type=arguments.mirror_directory,
+        help="local directory where buildcaches will be written. (deprecated)",
     )
-    push.add_argument("mirror", type=str, help="mirror name, path, or URL")
+    # TODO: remove from Spack 0.21
+    output.add_argument(
+        "-m",
+        "--mirror-name",
+        metavar="mirror-name",
+        dest="mirror_flag",
+        type=arguments.mirror_name,
+        help="name of the mirror where buildcaches will be written. (deprecated)",
+    )
+    # TODO: remove from Spack 0.21
+    output.add_argument(
+        "--mirror-url",
+        metavar="mirror-url",
+        dest="mirror_flag",
+        type=arguments.mirror_url,
+        help="URL of the mirror where buildcaches will be written. (deprecated)",
+    )
+    # Unfortunately we cannot add this to the mutually exclusive group above,
+    # because we have further positional arguments.
+    # TODO: require from Spack 0.21
+    push.add_argument("mirror", type=str, help="Mirror name, path, or URL.", nargs="?")
     push.add_argument(
         "--update-index",
         "--rebuild-index",
         action="store_true",
         default=False,
-        help="regenerate buildcache index after building package(s)",
+        help="Regenerate buildcache index after building package(s)",
     )
     push.add_argument(
-        "--spec-file", default=None, help="create buildcache entry for spec from json or yaml file"
+        "--spec-file", default=None, help="Create buildcache entry for spec from json or yaml file"
     )
     push.add_argument(
         "--only",
         default="package,dependencies",
         dest="things_to_install",
         choices=["package", "dependencies"],
-        help="select the buildcache mode. "
+        help=(
-        "The default is to build a cache for the package along with all its dependencies. "
+            "Select the buildcache mode. the default is to"
-        "Alternatively, one can decide to build a cache for only the package or only the "
+            " build a cache for the package along with all"
-        "dependencies",
+            " its dependencies. Alternatively, one can"
-    )
+            " decide to build a cache for only the package"
-    push.add_argument(
+            " or only the dependencies"
-        "--fail-fast",
+        ),
-        action="store_true",
-        help="stop pushing on first failure (default is best effort)",
     )
     arguments.add_common_arguments(push, ["specs"])
     push.set_defaults(func=push_fn)
 
     install = subparsers.add_parser("install", help=install_fn.__doc__)
     install.add_argument(
-        "-f", "--force", action="store_true", help="overwrite install directory if it exists"
+        "-f", "--force", action="store_true", help="overwrite install directory if it exists."
     )
     install.add_argument(
-        "-m", "--multiple", action="store_true", help="allow all matching packages"
+        "-m", "--multiple", action="store_true", help="allow all matching packages "
+    )
+    # TODO: remove from Spack 0.21
+    install.add_argument(
+        "-a",
+        "--allow-root",
+        action="store_true",
+        help="allow install root string in binary files after RPATH substitution. (deprecated)",
     )
     install.add_argument(
         "-u",
@@ -111,7 +151,7 @@ def setup_parser(subparser: argparse.ArgumentParser):
     install.set_defaults(func=install_fn)
 
     listcache = subparsers.add_parser("list", help=list_fn.__doc__)
-    arguments.add_common_arguments(listcache, ["long", "very_long", "namespaces"])
+    arguments.add_common_arguments(listcache, ["long", "very_long"])
     listcache.add_argument(
         "-v",
         "--variants",
@@ -146,49 +186,49 @@ def setup_parser(subparser: argparse.ArgumentParser):
         "-m",
         "--mirror-url",
         default=None,
-        help="override any configured mirrors with this mirror URL",
+        help="Override any configured mirrors with this mirror URL",
     )
 
     check.add_argument(
-        "-o", "--output-file", default=None, help="file where rebuild info should be written"
+        "-o", "--output-file", default=None, help="File where rebuild info should be written"
     )
 
     # used to construct scope arguments below
     scopes = spack.config.scopes()
+    scopes_metavar = spack.config.scopes_metavar
 
     check.add_argument(
         "--scope",
         choices=scopes,
-        metavar=spack.config.SCOPES_METAVAR,
+        metavar=scopes_metavar,
         default=spack.config.default_modify_scope(),
         help="configuration scope containing mirrors to check",
     )
-    check_spec_or_specfile = check.add_mutually_exclusive_group(required=True)
+
-    check_spec_or_specfile.add_argument(
+    check.add_argument(
-        "-s", "--spec", help="check single spec instead of release specs file"
+        "-s", "--spec", default=None, help="Check single spec instead of release specs file"
     )
-    check_spec_or_specfile.add_argument(
+
+    check.add_argument(
         "--spec-file",
-        help="check single spec from json or yaml file instead of release specs file",
+        default=None,
+        help=("Check single spec from json or yaml file instead of release specs file"),
     )
 
     check.set_defaults(func=check_fn)
 
     # Download tarball and specfile
     download = subparsers.add_parser("download", help=download_fn.__doc__)
-    download_spec_or_specfile = download.add_mutually_exclusive_group(required=True)
+    download.add_argument(
-    download_spec_or_specfile.add_argument(
+        "-s", "--spec", default=None, help="Download built tarball for spec from mirror"
-        "-s", "--spec", help="download built tarball for spec from mirror"
-    )
-    download_spec_or_specfile.add_argument(
-        "--spec-file", help="download built tarball for spec (from json or yaml file) from mirror"
     )
     download.add_argument(
-        "-p",
+        "--spec-file",
-        "--path",
-        required=True,
         default=None,
-        help="path to directory where tarball should be downloaded",
+        help=("Download built tarball for spec (from json or yaml file) from mirror"),
+    )
+    download.add_argument(
+        "-p", "--path", default=None, help="Path to directory where tarball should be downloaded"
     )
     download.set_defaults(func=download_fn)
 
@@ -196,53 +236,107 @@ def setup_parser(subparser: argparse.ArgumentParser):
     getbuildcachename = subparsers.add_parser(
         "get-buildcache-name", help=get_buildcache_name_fn.__doc__
     )
-    getbuildcachename_spec_or_specfile = getbuildcachename.add_mutually_exclusive_group(
+    getbuildcachename.add_argument(
-        required=True
+        "-s", "--spec", default=None, help="Spec string for which buildcache name is desired"
     )
-    getbuildcachename_spec_or_specfile.add_argument(
+    getbuildcachename.add_argument(
-        "-s", "--spec", help="spec string for which buildcache name is desired"
+        "--spec-file",
-    )
+        default=None,
-    getbuildcachename_spec_or_specfile.add_argument(
+        help=("Path to spec json or yaml file for which buildcache name is desired"),
-        "--spec-file", help="path to spec json or yaml file for which buildcache name is desired"
     )
     getbuildcachename.set_defaults(func=get_buildcache_name_fn)
 
     # Given the root spec, save the yaml of the dependent spec to a file
     savespecfile = subparsers.add_parser("save-specfile", help=save_specfile_fn.__doc__)
-    savespecfile_spec_or_specfile = savespecfile.add_mutually_exclusive_group(required=True)
+    savespecfile.add_argument("--root-spec", default=None, help="Root spec of dependent spec")
-    savespecfile_spec_or_specfile.add_argument("--root-spec", help="root spec of dependent spec")
+    savespecfile.add_argument(
-    savespecfile_spec_or_specfile.add_argument(
+        "--root-specfile",
-        "--root-specfile", help="path to json or yaml file containing root spec of dependent spec"
+        default=None,
+        help="Path to json or yaml file containing root spec of dependent spec",
     )
     savespecfile.add_argument(
         "-s",
         "--specs",
-        required=True,
+        default=None,
-        help="list of dependent specs for which saved yaml is desired",
+        help="List of dependent specs for which saved yaml is desired",
     )
     savespecfile.add_argument(
-        "--specfile-dir", required=True, help="path to directory where spec yamls should be saved"
+        "--specfile-dir", default=None, help="Path to directory where spec yamls should be saved"
     )
     savespecfile.set_defaults(func=save_specfile_fn)
 
     # Sync buildcache entries from one mirror to another
     sync = subparsers.add_parser("sync", help=sync_fn.__doc__)
     sync.add_argument(
-        "--manifest-glob", help="a quoted glob pattern identifying copy manifest files"
+        "--manifest-glob",
+        default=None,
+        help="A quoted glob pattern identifying copy manifest files",
     )
-    sync.add_argument(
+    source = sync.add_mutually_exclusive_group(required=False)
+    # TODO: remove in Spack 0.21
+    source.add_argument(
+        "--src-directory",
+        metavar="DIRECTORY",
+        dest="src_mirror_flag",
+        type=arguments.mirror_directory,
+        help="Source mirror as a local file path (deprecated)",
+    )
+    # TODO: remove in Spack 0.21
+    source.add_argument(
+        "--src-mirror-name",
+        metavar="MIRROR_NAME",
+        dest="src_mirror_flag",
+        type=arguments.mirror_name,
+        help="Name of the source mirror (deprecated)",
+    )
+    # TODO: remove in Spack 0.21
+    source.add_argument(
+        "--src-mirror-url",
+        metavar="MIRROR_URL",
+        dest="src_mirror_flag",
+        type=arguments.mirror_url,
+        help="URL of the source mirror (deprecated)",
+    )
+    # TODO: only support this in 0.21
+    source.add_argument(
         "src_mirror",
         metavar="source mirror",
         type=arguments.mirror_name_or_url,
+        help="Source mirror name, path, or URL",
         nargs="?",
-        help="source mirror name, path, or URL",
     )
-    sync.add_argument(
+    dest = sync.add_mutually_exclusive_group(required=False)
+    # TODO: remove in Spack 0.21
+    dest.add_argument(
+        "--dest-directory",
+        metavar="DIRECTORY",
+        dest="dest_mirror_flag",
+        type=arguments.mirror_directory,
+        help="Destination mirror as a local file path (deprecated)",
+    )
+    # TODO: remove in Spack 0.21
+    dest.add_argument(
+        "--dest-mirror-name",
+        metavar="MIRROR_NAME",
+        type=arguments.mirror_name,
+        dest="dest_mirror_flag",
+        help="Name of the destination mirror (deprecated)",
+    )
+    # TODO: remove in Spack 0.21
+    dest.add_argument(
+        "--dest-mirror-url",
+        metavar="MIRROR_URL",
+        dest="dest_mirror_flag",
+        type=arguments.mirror_url,
+        help="URL of the destination mirror (deprecated)",
+    )
+    # TODO: only support this in 0.21
+    dest.add_argument(
         "dest_mirror",
         metavar="destination mirror",
         type=arguments.mirror_name_or_url,
+        help="Destination mirror name, path, or URL",
         nargs="?",
-        help="destination mirror name, path, or URL",
     )
     sync.set_defaults(func=sync_fn)
 
@@ -250,48 +344,124 @@ def setup_parser(subparser: argparse.ArgumentParser):
     update_index = subparsers.add_parser(
         "update-index", aliases=["rebuild-index"], help=update_index_fn.__doc__
     )
-    update_index.add_argument(
+    update_index_out = update_index.add_mutually_exclusive_group(required=True)
-        "mirror", type=arguments.mirror_name_or_url, help="destination mirror name, path, or URL"
+    # TODO: remove in Spack 0.21
+    update_index_out.add_argument(
+        "-d",
+        "--directory",
+        metavar="directory",
+        dest="mirror_flag",
+        type=arguments.mirror_directory,
+        help="local directory where buildcaches will be written (deprecated)",
+    )
+    # TODO: remove in Spack 0.21
+    update_index_out.add_argument(
+        "-m",
+        "--mirror-name",
+        metavar="mirror-name",
+        dest="mirror_flag",
+        type=arguments.mirror_name,
+        help="name of the mirror where buildcaches will be written (deprecated)",
+    )
+    # TODO: remove in Spack 0.21
+    update_index_out.add_argument(
+        "--mirror-url",
+        metavar="mirror-url",
+        dest="mirror_flag",
+        type=arguments.mirror_url,
+        help="URL of the mirror where buildcaches will be written (deprecated)",
+    )
+    # TODO: require from Spack 0.21
+    update_index_out.add_argument(
+        "mirror",
+        type=arguments.mirror_name_or_url,
+        help="Destination mirror name, path, or URL",
+        nargs="?",
     )
     update_index.add_argument(
         "-k",
         "--keys",
         default=False,
         action="store_true",
-        help="if provided, key index will be updated as well as package index",
+        help="If provided, key index will be updated as well as package index",
     )
     update_index.set_defaults(func=update_index_fn)
 
 
-def _matching_specs(specs: List[Spec]) -> List[Spec]:
+def _matching_specs(specs, spec_file):
-    """Disambiguate specs and return a list of matching specs"""
+    """Return a list of matching specs read from either a spec file (JSON or YAML),
-    return [spack.cmd.disambiguate_spec(s, ev.active_environment(), installed=any) for s in specs]
+    a query over the store or a query over the active environment.
+    """
+    env = ev.active_environment()
+    hashes = env.all_hashes() if env else None
+    if spec_file:
+        return spack.store.specfile_matches(spec_file, hashes=hashes)
+
+    if specs:
+        constraints = spack.cmd.parse_specs(specs)
+        return spack.store.find(constraints, hashes=hashes)
+
+    if env:
+        return [concrete for _, concrete in env.concretized_specs()]
+
+    tty.die(
+        "build cache file creation requires at least one"
+        " installed package spec, an active environment,"
+        " or else a path to a json or yaml file containing a spec"
+        " to install"
+    )
 
 
-def push_fn(args: argparse.Namespace):
+def _concrete_spec_from_args(args):
+    spec_str, specfile_path = args.spec, args.spec_file
+
+    if not spec_str and not specfile_path:
+        tty.error("must provide either spec string or path to YAML or JSON specfile")
+        sys.exit(1)
+
+    if spec_str:
+        try:
+            constraints = spack.cmd.parse_specs(spec_str)
+            spec = spack.store.find(constraints)[0]
+            spec.concretize()
+        except SpecError as spec_error:
+            tty.error("Unable to concretize spec {0}".format(spec_str))
+            tty.debug(spec_error)
+            sys.exit(1)
+
+        return spec
+
+    return Spec.from_specfile(specfile_path)
+
+
+def push_fn(args):
     """create a binary package and push it to a mirror"""
-    if args.spec_file:
+    if args.mirror_flag:
-        tty.warn(
+        mirror = args.mirror_flag
-            "The flag `--spec-file` is deprecated and will be removed in Spack 0.22. "
+    elif not args.mirror:
-            "Use positional arguments instead."
+        raise ValueError("No mirror provided")
-        )
-
-    if args.specs or args.spec_file:
-        specs = _matching_specs(spack.cmd.parse_specs(args.specs or args.spec_file))
     else:
-        specs = spack.cmd.require_active_env("buildcache push").all_specs()
+        mirror = arguments.mirror_name_or_url(args.mirror)
 
-    mirror = arguments.mirror_name_or_url(args.mirror)
+    if args.mirror_flag:
-
-    if args.allow_root:
         tty.warn(
-            "The flag `--allow-root` is the default in Spack 0.21, will be removed in Spack 0.22"
+            "Using flags to specify mirrors is deprecated and will be removed in "
+            "Spack 0.21, use positional arguments instead."
         )
 
+    if args.rel:
+        tty.warn("The --rel flag is deprecated and will be removed in Spack 0.21")
+
+    # TODO: remove this in 0.21. If we have mirror_flag, the first
+    # spec is in the positional mirror arg due to argparse limitations.
+    input_specs = args.specs
+    if args.mirror_flag and args.mirror:
+        input_specs.insert(0, args.mirror)
+
     url = mirror.push_url
 
     specs = bindist.specs_to_be_packaged(
-        specs,
+        _matching_specs(input_specs, args.spec_file),
         root="package" in args.things_to_install,
         dependencies="dependencies" in args.things_to_install,
     )
@@ -302,7 +472,6 @@ def push_fn(args: argparse.Namespace):
         tty.info(f"Selected {len(specs)} specs to push to {url}")
 
     skipped = []
-    failed = []
 
     # tty printing
     color = clr.get_color_when()
@@ -317,7 +486,9 @@ def push_fn(args: argparse.Namespace):
                 url,
                 bindist.PushOptions(
                     force=args.force,
+                    relative=args.rel,
                     unsigned=args.unsigned,
+                    allow_root=args.allow_root,
                     key=args.key,
                     regenerate_index=args.update_index,
                 ),
@@ -333,17 +504,11 @@ def push_fn(args: argparse.Namespace):
         except bindist.NoOverwriteException:
             skipped.append(format_spec(spec))
 
-        # Catch any other exception unless the fail fast option is set
-        except Exception as e:
-            if args.fail_fast or isinstance(e, (bindist.PickKeyException, bindist.NoKeyException)):
-                raise
-            failed.append((format_spec(spec), e))
-
     if skipped:
         if len(specs) == 1:
             tty.info("The spec is already in the buildcache. Use --force to overwrite it.")
         elif len(skipped) == len(specs):
-            tty.info("All specs are already in the buildcache. Use --force to overwrite them.")
+            tty.info("All specs are already in the buildcache. Use --force to overwite them.")
         else:
             tty.info(
                 "The following {} specs were skipped as they already exist in the buildcache:\n"
@@ -353,23 +518,15 @@ def push_fn(args: argparse.Namespace):
                 )
             )
 
-    if failed:
-        if len(failed) == 1:
-            raise failed[0][1]
-
-        raise spack.error.SpackError(
-            f"The following {len(failed)} errors occurred while pushing specs to the buildcache",
-            "\n".join(
-                elide_list([f"    {spec}: {e.__class__.__name__}: {e}" for spec, e in failed], 5)
-            ),
-        )
-
 
 def install_fn(args):
     """install from a binary package"""
     if not args.specs:
         tty.die("a spec argument is required to install from a buildcache")
 
+    if args.allow_root:
+        tty.warn("The --allow-root flag is deprecated and will be removed in Spack 0.21")
+
     query = bindist.BinaryCacheQuery(all_architectures=args.otherarch)
     matches = spack.store.find(args.specs, multiple=args.multiple, query_fn=query)
     for match in matches:
@@ -407,31 +564,32 @@ def keys_fn(args):
 
 
 def preview_fn(args):
-    """analyze an installed spec and reports whether executables and libraries are relocatable"""
+    """analyze an installed spec and reports whether executables
-    tty.warn(
+    and libraries are relocatable
-        "`spack buildcache preview` is deprecated since `spack buildcache push --allow-root` is "
-        "now the default. This command will be removed in Spack 0.22"
-    )
-
-
-def check_fn(args: argparse.Namespace):
-    """check specs against remote binary mirror(s) to see if any need to be rebuilt
-
-    this command uses the process exit code to indicate its result, specifically, if the
-    exit code is non-zero, then at least one of the indicated specs needs to be rebuilt
     """
-    if args.spec_file:
+    constraints = spack.cmd.parse_specs(args.specs)
-        tty.warn(
+    specs = spack.store.find(constraints, multiple=True)
-            "The flag `--spec-file` is deprecated and will be removed in Spack 0.22. "
-            "Use --spec instead."
-        )
 
-    specs = spack.cmd.parse_specs(args.spec or args.spec_file)
+    # Cycle over the specs that match
+    for spec in specs:
+        print("Relocatable nodes")
+        print("--------------------------------")
+        print(spec.tree(status_fn=spack.relocate.is_relocatable))
 
-    if specs:
+
-        specs = _matching_specs(specs)
+def check_fn(args):
+    """Check specs (either a single spec from --spec, or else the full set
+    of release specs) against remote binary mirror(s) to see if any need
+    to be rebuilt.  This command uses the process exit code to indicate
+    its result, specifically, if the exit code is non-zero, then at least
+    one of the indicated specs needs to be rebuilt.
+    """
+    if args.spec or args.spec_file:
+        specs = [_concrete_spec_from_args(args)]
     else:
-        specs = spack.cmd.require_active_env("buildcache check").all_specs()
+        env = spack.cmd.require_active_env(cmd_name="buildcache")
+        env.concretize()
+        specs = env.all_specs()
 
     if not specs:
         tty.msg("No specs provided, exiting.")
@@ -455,61 +613,63 @@ def check_fn(args: argparse.Namespace):
 
 
 def download_fn(args):
-    """download buildcache entry from a remote mirror to local folder
+    """Download buildcache entry from a remote mirror to local folder.  This
+    command uses the process exit code to indicate its result, specifically,
+    a non-zero exit code indicates that the command failed to download at
+    least one of the required buildcache components."""
+    if not args.spec and not args.spec_file:
+        tty.msg("No specs provided, exiting.")
+        return
 
-    this command uses the process exit code to indicate its result, specifically, a non-zero exit
+    if not args.path:
-    code indicates that the command failed to download at least one of the required buildcache
+        tty.msg("No download path provided, exiting")
-    components
+        return
-    """
-    if args.spec_file:
-        tty.warn(
-            "The flag `--spec-file` is deprecated and will be removed in Spack 0.22. "
-            "Use --spec instead."
-        )
 
-    specs = _matching_specs(spack.cmd.parse_specs(args.spec or args.spec_file))
+    spec = _concrete_spec_from_args(args)
+    result = bindist.download_single_spec(spec, args.path)
 
-    if len(specs) != 1:
+    if not result:
-        tty.die("a single spec argument is required to download from a buildcache")
-
-    if not bindist.download_single_spec(specs[0], args.path):
         sys.exit(1)
 
 
 def get_buildcache_name_fn(args):
-    """get name (prefix) of buildcache entries for this spec"""
+    """Get name (prefix) of buildcache entries for this spec"""
-    tty.warn("This command is deprecated and will be removed in Spack 0.22.")
+    spec = _concrete_spec_from_args(args)
-    specs = _matching_specs(spack.cmd.parse_specs(args.spec or args.spec_file))
+    buildcache_name = bindist.tarball_name(spec, "")
-    if len(specs) != 1:
+    print("{0}".format(buildcache_name))
-        tty.die("a single spec argument is required to get buildcache name")
-    print(bindist.tarball_name(specs[0], ""))
 
 
 def save_specfile_fn(args):
-    """get full spec for dependencies and write them to files in the specified output directory
+    """Get full spec for dependencies, relative to root spec, and write them
-
+    to files in the specified output directory.  Uses exit code to signal
-    uses exit code to signal success or failure. an exit code of zero means the command was likely
+    success or failure.  An exit code of zero means the command was likely
-    successful. if any errors or exceptions are encountered, or if expected command-line arguments
+    successful.  If any errors or exceptions are encountered, or if expected
-    are not provided, then the exit code will be non-zero
+    command-line arguments are not provided, then the exit code will be
+    non-zero.
     """
+    if not args.root_spec and not args.root_specfile:
+        tty.msg("No root spec provided, exiting.")
+        sys.exit(1)
+
+    if not args.specs:
+        tty.msg("No dependent specs provided, exiting.")
+        sys.exit(1)
+
+    if not args.specfile_dir:
+        tty.msg("No yaml directory provided, exiting.")
+        sys.exit(1)
+
     if args.root_specfile:
-        tty.warn(
+        with open(args.root_specfile) as fd:
-            "The flag `--root-specfile` is deprecated and will be removed in Spack 0.22. "
+            root_spec_as_json = fd.read()
-            "Use --root-spec instead."
+        spec_format = "yaml" if args.root_specfile.endswith("yaml") else "json"
-        )
+    else:
-
+        root_spec = Spec(args.root_spec)
-    specs = spack.cmd.parse_specs(args.root_spec or args.root_specfile)
+        root_spec.concretize()
-
+        root_spec_as_json = root_spec.to_json(hash=ht.dag_hash)
-    if len(specs) != 1:
+        spec_format = "json"
-        tty.die("a single spec argument is required to save specfile")
-
-    root = specs[0]
-
-    if not root.concrete:
-        root.concretize()
-
     save_dependency_specfiles(
-        root, args.specfile_dir, dependencies=spack.cmd.parse_specs(args.specs)
+        root_spec_as_json, args.specfile_dir, args.specs.split(), spec_format
     )
 
 
@@ -527,7 +687,7 @@ def copy_buildcache_file(src_url, dest_url, local_path=None):
             temp_stage.create()
             temp_stage.fetch()
             web_util.push_to_url(local_path, dest_url, keep_original=True)
-        except spack.error.FetchError as e:
+        except web_util.FetchError as e:
             # Expected, since we have to try all the possible extensions
             tty.debug("no such file: {0}".format(src_url))
             tty.debug(e)
@@ -539,19 +699,32 @@ def copy_buildcache_file(src_url, dest_url, local_path=None):
 
 
 def sync_fn(args):
-    """sync binaries (and associated metadata) from one mirror to another
+    """Syncs binaries (and associated metadata) from one mirror to another.
+    Requires an active environment in order to know which specs to sync.
 
-    requires an active environment in order to know which specs to sync
+    Args:
+        src (str): Source mirror URL
+        dest (str): Destination mirror URL
     """
     if args.manifest_glob:
         manifest_copy(glob.glob(args.manifest_glob))
         return 0
 
-    if args.src_mirror is None or args.dest_mirror is None:
+    # If no manifest_glob, require a source and dest mirror.
-        tty.die("Provide mirrors to sync from and to.")
+    # TODO: Simplify in Spack 0.21
+    if not (args.src_mirror_flag or args.src_mirror) or not (
+        args.dest_mirror_flag or args.dest_mirror
+    ):
+        raise ValueError("Source and destination mirror are required.")
 
-    src_mirror = args.src_mirror
+    if args.src_mirror_flag or args.dest_mirror_flag:
-    dest_mirror = args.dest_mirror
+        tty.warn(
+            "Using flags to specify mirrors is deprecated and will be removed in "
+            "Spack 0.21, use positional arguments instead."
+        )
+
+    src_mirror = args.src_mirror_flag if args.src_mirror_flag else args.src_mirror
+    dest_mirror = args.dest_mirror_flag if args.dest_mirror_flag else args.dest_mirror
 
     src_mirror_url = src_mirror.fetch_url
     dest_mirror_url = dest_mirror.push_url
@@ -629,8 +802,14 @@ def update_index(mirror: spack.mirror.Mirror, update_keys=False):
 
 
 def update_index_fn(args):
-    """update a buildcache index"""
+    """Update a buildcache index."""
-    update_index(args.mirror, update_keys=args.keys)
+    if args.mirror_flag:
+        tty.warn(
+            "Using flags to specify mirrors is deprecated and will be removed in "
+            "Spack 0.21, use positional arguments instead."
+        )
+    mirror = args.mirror_flag if args.mirror_flag else args.mirror
+    update_index(mirror, update_keys=args.keys)
 
 
 def buildcache(parser, args):

lib/spack/spack/cmd/checksum.py

@@ -3,22 +3,21 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from __future__ import print_function
+
 import argparse
-import re
 import sys
 
-import llnl.util.lang
+import llnl.util.tty as tty
-from llnl.util import tty
 
 import spack.cmd
+import spack.cmd.common.arguments as arguments
 import spack.repo
 import spack.spec
 import spack.stage
 import spack.util.crypto
-from spack.cmd.common import arguments
+from spack.package_base import deprecated_version, preferred_version
-from spack.package_base import PackageBase, deprecated_version, preferred_version
 from spack.util.editor import editor
-from spack.util.format import get_version_lines
 from spack.util.naming import valid_fully_qualified_module_name
 from spack.version import Version
 
@@ -34,39 +33,36 @@ def setup_parser(subparser):
         default=False,
         help="don't clean up staging area when command completes",
     )
-    subparser.add_argument(
+    sp = subparser.add_mutually_exclusive_group()
+    sp.add_argument(
         "-b",
         "--batch",
         action="store_true",
         default=False,
         help="don't ask which versions to checksum",
     )
-    subparser.add_argument(
+    sp.add_argument(
         "-l",
         "--latest",
         action="store_true",
         default=False,
-        help="checksum the latest available version",
+        help="checksum the latest available version only",
     )
-    subparser.add_argument(
+    sp.add_argument(
         "-p",
         "--preferred",
         action="store_true",
         default=False,
-        help="checksum the known Spack preferred version",
+        help="checksum the preferred version only",
     )
-    modes_parser = subparser.add_mutually_exclusive_group()
+    subparser.add_argument(
-    modes_parser.add_argument(
         "-a",
         "--add-to-package",
         action="store_true",
         default=False,
         help="add new versions to package",
     )
-    modes_parser.add_argument(
+    arguments.add_common_arguments(subparser, ["package"])
-        "--verify", action="store_true", default=False, help="verify known package checksums"
-    )
-    arguments.add_common_arguments(subparser, ["package", "jobs"])
     subparser.add_argument(
         "versions", nargs=argparse.REMAINDER, help="versions to generate checksums for"
     )
@@ -83,174 +79,89 @@ def checksum(parser, args):
         tty.die("`spack checksum` accepts package names, not URLs.")
 
     # Get the package we're going to generate checksums for
-    pkg_cls = spack.repo.PATH.get_pkg_class(args.package)
+    pkg_cls = spack.repo.path.get_pkg_class(args.package)
     pkg = pkg_cls(spack.spec.Spec(args.package))
 
-    # Build a list of versions to checksum
-    versions = [Version(v) for v in args.versions]
-
-    # Define placeholder for remote versions.
-    # This'll help reduce redundant work if we need to check for the existance
-    # of remote versions more than once.
-    remote_versions = None
-
-    # Add latest version if requested
-    if args.latest:
-        remote_versions = pkg.fetch_remote_versions(args.jobs)
-        if len(remote_versions) > 0:
-            latest_version = sorted(remote_versions.keys(), reverse=True)[0]
-            versions.append(latest_version)
-
-    # Add preferred version if requested
-    if args.preferred:
-        versions.append(preferred_version(pkg))
-
-    # Store a dict of the form version -> URL
     url_dict = {}
+    if not args.versions and args.preferred:
+        versions = [preferred_version(pkg)]
+    else:
+        versions = [Version(v) for v in args.versions]
 
-    for version in versions:
+    if versions:
-        if deprecated_version(pkg, version):
+        remote_versions = None
-            tty.warn(f"Version {version} is deprecated")
+        for version in versions:
+            if deprecated_version(pkg, version):
+                tty.warn("Version {0} is deprecated".format(version))
 
-        url = pkg.find_valid_url_for_version(version)
+            url = pkg.find_valid_url_for_version(version)
-        if url is not None:
+            if url is not None:
-            url_dict[version] = url
+                url_dict[version] = url
-            continue
+                continue
-        # if we get here, it's because no valid url was provided by the package
+            # if we get here, it's because no valid url was provided by the package
-        # do expensive fallback to try to recover
+            # do expensive fallback to try to recover
-        if remote_versions is None:
+            if remote_versions is None:
-            remote_versions = pkg.fetch_remote_versions(args.jobs)
+                remote_versions = pkg.fetch_remote_versions()
-        if version in remote_versions:
+            if version in remote_versions:
-            url_dict[version] = remote_versions[version]
+                url_dict[version] = remote_versions[version]
-
+    else:
-    if len(versions) <= 0:
+        url_dict = pkg.fetch_remote_versions()
-        if remote_versions is None:
-            remote_versions = pkg.fetch_remote_versions(args.jobs)
-        url_dict = remote_versions
 
     if not url_dict:
-        tty.die(f"Could not find any remote versions for {pkg.name}")
+        tty.die("Could not find any remote versions for {0}".format(pkg.name))
 
-    # print an empty line to create a new output section block
+    version_lines = spack.stage.get_checksums_for_versions(
-    print()
-
-    version_hashes = spack.stage.get_checksums_for_versions(
         url_dict,
         pkg.name,
         keep_stage=args.keep_stage,
-        batch=(args.batch or len(versions) > 0 or len(url_dict) == 1),
+        batch=(args.batch or len(args.versions) > 0 or len(url_dict) == 1),
+        latest=args.latest,
         fetch_options=pkg.fetch_options,
     )
 
-    if args.verify:
-        print_checksum_status(pkg, version_hashes)
-        sys.exit(0)
-
-    # convert dict into package.py version statements
-    version_lines = get_version_lines(version_hashes, url_dict)
     print()
     print(version_lines)
     print()
 
     if args.add_to_package:
-        add_versions_to_package(pkg, version_lines)
+        filename = spack.repo.path.filename_for_package_name(pkg.name)
+        # Make sure we also have a newline after the last version
+        versions = [v + "\n" for v in version_lines.splitlines()]
+        versions.append("\n")
+        # We need to insert the versions in reversed order
+        versions.reverse()
+        versions.append("    # FIXME: Added by `spack checksum`\n")
+        version_line = None
 
+        with open(filename, "r") as f:
+            lines = f.readlines()
+            for i in range(len(lines)):
+                # Black is drunk, so this is what it looks like for now
+                # See https://github.com/psf/black/issues/2156 for more information
+                if lines[i].startswith("    # FIXME: Added by `spack checksum`") or lines[
+                    i
+                ].startswith("    version("):
+                    version_line = i
+                    break
 
-def print_checksum_status(pkg: PackageBase, version_hashes: dict):
+        if version_line is not None:
-    """
+            for v in versions:
-    Verify checksums present in version_hashes against those present
+                lines.insert(version_line, v)
-    in the package's instructions.
 
-    Args:
+            with open(filename, "w") as f:
-        pkg (spack.package_base.PackageBase): A package class for a given package in Spack.
+                f.writelines(lines)
-        version_hashes (dict): A dictionary of the form: version -> checksum.
 
-    """
+            msg = "opening editor to verify"
-    results = []
-    num_verified = 0
-    failed = False
 
-    max_len = max(len(str(v)) for v in version_hashes)
+            if not sys.stdout.isatty():
-    num_total = len(version_hashes)
+                msg = "please verify"
 
-    for version, sha in version_hashes.items():
+            tty.info(
-        if version not in pkg.versions:
+                "Added {0} new versions to {1}, "
-            msg = "No previous checksum"
+                "{2}.".format(len(versions) - 2, args.package, msg)
-            status = "-"
+            )
-
-        elif sha == pkg.versions[version]["sha256"]:
-            msg = "Correct"
-            status = "="
-            num_verified += 1
 
+            if sys.stdout.isatty():
+                editor(filename)
         else:
-            msg = sha
+            tty.warn("Could not add new versions to {0}.".format(args.package))
-            status = "x"
-            failed = True
-
-        results.append("{0:{1}}  {2} {3}".format(str(version), max_len, f"[{status}]", msg))
-
-    # Display table of checksum results.
-    tty.msg(f"Verified {num_verified} of {num_total}", "", *llnl.util.lang.elide_list(results), "")
-
-    # Terminate at the end of function to prevent additional output.
-    if failed:
-        print()
-        tty.die("Invalid checksums found.")
-
-
-def add_versions_to_package(pkg: PackageBase, version_lines: str):
-    """
-    Add checksumed versions to a package's instructions and open a user's
-    editor so they may double check the work of the function.
-
-    Args:
-        pkg (spack.package_base.PackageBase): A package class for a given package in Spack.
-        version_lines (str): A string of rendered version lines.
-
-    """
-    # Get filename and path for package
-    filename = spack.repo.PATH.filename_for_package_name(pkg.name)
-    num_versions_added = 0
-
-    version_statement_re = re.compile(r"([\t ]+version\([^\)]*\))")
-    version_re = re.compile(r'[\t ]+version\(\s*"([^"]+)"[^\)]*\)')
-
-    # Split rendered version lines into tuple of (version, version_line)
-    # We reverse sort here to make sure the versions match the version_lines
-    new_versions = []
-    for ver_line in version_lines.split("\n"):
-        match = version_re.match(ver_line)
-        if match:
-            new_versions.append((Version(match.group(1)), ver_line))
-
-    with open(filename, "r+") as f:
-        contents = f.read()
-        split_contents = version_statement_re.split(contents)
-
-        for i, subsection in enumerate(split_contents):
-            # If there are no more versions to add we should exit
-            if len(new_versions) <= 0:
-                break
-
-            # Check if the section contains a version
-            contents_version = version_re.match(subsection)
-            if contents_version is not None:
-                parsed_version = Version(contents_version.group(1))
-
-                if parsed_version < new_versions[0][0]:
-                    split_contents[i:i] = [new_versions.pop(0)[1], " # FIXME", "\n"]
-                    num_versions_added += 1
-
-                elif parsed_version == new_versions[0][0]:
-                    new_versions.pop(0)
-
-        # Seek back to the start of the file so we can rewrite the file contents.
-        f.seek(0)
-        f.writelines("".join(split_contents))
-
-        tty.msg(f"Added {num_versions_added} new versions to {pkg.name}")
-        tty.msg(f"Open {filename} to review the additions.")
-
-    if sys.stdout.isatty():
-        editor(filename)

lib/spack/spack/cmd/ci.py

@@ -18,8 +18,6 @@
 import spack.environment as ev
 import spack.hash_types as ht
 import spack.mirror
-import spack.util.gpg as gpg_util
-import spack.util.timer as timer
 import spack.util.url as url_util
 import spack.util.web as web_util
 
@@ -49,36 +47,40 @@ def setup_parser(subparser):
     generate.add_argument(
         "--output-file",
         default=None,
-        help="pathname for the generated gitlab ci yaml file\n\n"
+        help="""pathname for the generated gitlab ci yaml file
-        "path to the file where generated jobs file should be written. "
+  Path to the file where generated jobs file should
-        "default is .gitlab-ci.yml in the root of the repository",
+be written. Default is .gitlab-ci.yml in the root of
+the repository.""",
     )
     generate.add_argument(
         "--copy-to",
         default=None,
-        help="path to additional directory for job files\n\n"
+        help="""path to additional directory for job files
-        "this option provides an absolute path to a directory where the generated "
+  This option provides an absolute path to a directory
-        "jobs yaml file should be copied. default is not to copy",
+where the generated jobs yaml file should be copied.
+Default is not to copy.""",
     )
     generate.add_argument(
         "--optimize",
         action="store_true",
         default=False,
-        help="(experimental) optimize the gitlab yaml file for size\n\n"
+        help="""(Experimental) optimize the gitlab yaml file for size
-        "run the generated document through a series of optimization passes "
+  Run the generated document through a series of
-        "designed to reduce the size of the generated file",
+optimization passes designed to reduce the size
+of the generated file.""",
     )
     generate.add_argument(
         "--dependencies",
         action="store_true",
         default=False,
-        help="(experimental) disable DAG scheduling (use 'plain' dependencies)",
+        help="(Experimental) disable DAG scheduling; use " ' "plain" dependencies.',
     )
     generate.add_argument(
         "--buildcache-destination",
         default=None,
-        help="override the mirror configured in the environment\n\n"
+        help="Override the mirror configured in the environment (spack.yaml) "
-        "allows for pushing binaries from the generated pipeline to a different location",
+        + "in order to push binaries from the generated pipeline to a "
+        + "different location.",
     )
     prune_group = generate.add_mutually_exclusive_group()
     prune_group.add_argument(
@@ -86,37 +88,45 @@ def setup_parser(subparser):
         action="store_true",
         dest="prune_dag",
         default=True,
-        help="skip up-to-date specs\n\n"
+        help="""skip up-to-date specs
-        "do not generate jobs for specs that are up-to-date on the mirror",
+  Do not generate jobs for specs that are up-to-date
+on the mirror.""",
     )
     prune_group.add_argument(
         "--no-prune-dag",
         action="store_false",
         dest="prune_dag",
         default=True,
-        help="process up-to-date specs\n\n"
+        help="""process up-to-date specs
-        "generate jobs for specs even when they are up-to-date on the mirror",
+  Generate jobs for specs even when they are up-to-date
+on the mirror.""",
     )
     generate.add_argument(
         "--check-index-only",
         action="store_true",
         dest="index_only",
         default=False,
-        help="only check spec state from buildcache indices\n\n"
+        help="""only check spec state from buildcache indices
-        "Spack always checks specs against configured binary mirrors, regardless of the DAG "
+  Spack always checks specs against configured binary
-        "pruning option. if enabled, Spack will assume all remote buildcache indices are "
+mirrors, regardless of the DAG pruning option.
-        "up-to-date when assessing whether the spec on the mirror, if present, is up-to-date. "
+  If enabled, Spack will assume all remote buildcache
-        "this has the benefit of reducing pipeline generation time but at the potential cost of "
+indices are up-to-date when assessing whether the spec
-        "needlessly rebuilding specs when the indices are outdated. if not enabled, Spack will "
+on the mirror, if present, is up-to-date. This has the
-        "fetch remote spec files directly to assess whether the spec on the mirror is up-to-date",
+benefit of reducing pipeline generation time but at the
+potential cost of needlessly rebuilding specs when the
+indices are outdated.
+  If not enabled, Spack will fetch remote spec files
+directly to assess whether the spec on the mirror is
+up-to-date.""",
     )
     generate.add_argument(
         "--artifacts-root",
         default=None,
-        help="path to the root of the artifacts directory\n\n"
+        help="""path to the root of the artifacts directory
-        "if provided, concrete environment files (spack.yaml, spack.lock) will be generated under "
+  If provided, concrete environment files (spack.yaml,
-        "this directory. their location will be passed to generated child jobs through the "
+spack.lock) will be generated under this directory.
-        "SPACK_CONCRETE_ENVIRONMENT_PATH variable",
+Their location will be passed to generated child jobs
+through the SPACK_CONCRETE_ENVIRONMENT_PATH variable.""",
     )
     generate.set_defaults(func=ci_generate)
 
@@ -140,13 +150,13 @@ def setup_parser(subparser):
         "--tests",
         action="store_true",
         default=False,
-        help="run stand-alone tests after the build",
+        help="""run stand-alone tests after the build""",
     )
     rebuild.add_argument(
         "--fail-fast",
         action="store_true",
         default=False,
-        help="stop stand-alone tests after the first failure",
+        help="""stop stand-alone tests after the first failure""",
     )
     rebuild.set_defaults(func=ci_rebuild)
 
@@ -156,39 +166,23 @@ def setup_parser(subparser):
         description=deindent(ci_reproduce.__doc__),
         help=spack.cmd.first_line(ci_reproduce.__doc__),
     )
-    reproduce.add_argument("job_url", help="URL of job artifacts bundle")
+    reproduce.add_argument("job_url", help="Url of job artifacts bundle")
-    reproduce.add_argument(
-        "--runtime",
-        help="Container runtime to use.",
-        default="docker",
-        choices=["docker", "podman"],
-    )
     reproduce.add_argument(
         "--working-dir",
-        help="where to unpack artifacts",
+        help="Where to unpack artifacts",
         default=os.path.join(os.getcwd(), "ci_reproduction"),
     )
-    reproduce.add_argument(
-        "-s", "--autostart", help="Run docker reproducer automatically", action="store_true"
-    )
-    gpg_group = reproduce.add_mutually_exclusive_group(required=False)
-    gpg_group.add_argument(
-        "--gpg-file", help="Path to public GPG key for validating binary cache installs"
-    )
-    gpg_group.add_argument(
-        "--gpg-url", help="URL to public GPG key for validating binary cache installs"
-    )
 
     reproduce.set_defaults(func=ci_reproduce)
 
 
 def ci_generate(args):
-    """generate jobs file from a CI-aware spack file
+    """Generate jobs file from a CI-aware spack file.
 
-    if you want to report the results on CDash, you will need to set the SPACK_CDASH_AUTH_TOKEN
+    If you want to report the results on CDash, you will need to set
-    before invoking this command. the value must be the CDash authorization token needed to create
+    the SPACK_CDASH_AUTH_TOKEN before invoking this command. The
-    a build group and register all generated jobs under it
+    value must be the CDash authorization token needed to create a
-    """
+    build group and register all generated jobs under it."""
     env = spack.cmd.require_active_env(cmd_name="ci generate")
 
     output_file = args.output_file
@@ -229,13 +223,12 @@ def ci_generate(args):
 
 
 def ci_reindex(args):
-    """rebuild the buildcache index for the remote mirror
+    """Rebuild the buildcache index for the remote mirror.
 
-    use the active, gitlab-enabled environment to rebuild the buildcache index for the associated
+    Use the active, gitlab-enabled environment to rebuild the buildcache
-    mirror
+    index for the associated mirror."""
-    """
     env = spack.cmd.require_active_env(cmd_name="ci rebuild-index")
-    yaml_root = env.manifest[ev.TOP_LEVEL_KEY]
+    yaml_root = ev.config_dict(env.manifest)
 
     if "mirrors" not in yaml_root or len(yaml_root["mirrors"].values()) < 1:
         tty.die("spack ci rebuild-index requires an env containing a mirror")
@@ -249,13 +242,10 @@ def ci_reindex(args):
 
 
 def ci_rebuild(args):
-    """rebuild a spec if it is not on the remote mirror
+    """Rebuild a spec if it is not on the remote mirror.
-
-    check a single spec against the remote mirror, and rebuild it from source if the mirror does
-    not contain the hash
-    """
-    rebuild_timer = timer.Timer()
 
+    Check a single spec against the remote mirror, and rebuild it from
+    source if the mirror does not contain the hash."""
     env = spack.cmd.require_active_env(cmd_name="ci rebuild")
 
     # Make sure the environment is "gitlab-enabled", or else there's nothing
@@ -284,23 +274,13 @@ def ci_rebuild(args):
     signing_key = os.environ.get("SPACK_SIGNING_KEY")
     job_spec_pkg_name = os.environ.get("SPACK_JOB_SPEC_PKG_NAME")
     job_spec_dag_hash = os.environ.get("SPACK_JOB_SPEC_DAG_HASH")
+    compiler_action = os.environ.get("SPACK_COMPILER_ACTION")
     spack_pipeline_type = os.environ.get("SPACK_PIPELINE_TYPE")
     remote_mirror_override = os.environ.get("SPACK_REMOTE_MIRROR_OVERRIDE")
     remote_mirror_url = os.environ.get("SPACK_REMOTE_MIRROR_URL")
     spack_ci_stack_name = os.environ.get("SPACK_CI_STACK_NAME")
     shared_pr_mirror_url = os.environ.get("SPACK_CI_SHARED_PR_MIRROR_URL")
     rebuild_everything = os.environ.get("SPACK_REBUILD_EVERYTHING")
-    require_signing = os.environ.get("SPACK_REQUIRE_SIGNING")
-
-    # If signing key was provided via "SPACK_SIGNING_KEY", then try to import it.
-    if signing_key:
-        spack_ci.import_signing_key(signing_key)
-
-    # Fail early if signing is required but we don't have a signing key
-    sign_binaries = require_signing is not None and require_signing.lower() == "true"
-    if sign_binaries and not spack_ci.can_sign_binaries():
-        gpg_util.list(False, True)
-        tty.die("SPACK_REQUIRE_SIGNING=True => spack must have exactly one signing key")
 
     # Construct absolute paths relative to current $CI_PROJECT_DIR
     ci_project_dir = os.environ.get("CI_PROJECT_DIR")
@@ -315,6 +295,7 @@ def ci_rebuild(args):
     tty.debug("pipeline_artifacts_dir = {0}".format(pipeline_artifacts_dir))
     tty.debug("remote_mirror_url = {0}".format(remote_mirror_url))
     tty.debug("job_spec_pkg_name = {0}".format(job_spec_pkg_name))
+    tty.debug("compiler_action = {0}".format(compiler_action))
 
     # Query the environment manifest to find out whether we're reporting to a
     # CDash instance, and if so, gather some information from the manifest to
@@ -425,6 +406,19 @@ def ci_rebuild(args):
                 dst_file = os.path.join(repro_dir, file_name)
                 shutil.copyfile(src_file, dst_file)
 
+    # If signing key was provided via "SPACK_SIGNING_KEY", then try to
+    # import it.
+    if signing_key:
+        spack_ci.import_signing_key(signing_key)
+
+    # Depending on the specifics of this job, we might need to turn on the
+    # "config:install_missing compilers" option (to build this job spec
+    # with a bootstrapped compiler), or possibly run "spack compiler find"
+    # (to build a bootstrap compiler or one of its deps in a
+    # compiler-agnostic way), or maybe do nothing at all (to build a spec
+    # using a compiler already installed on the target system).
+    spack_ci.configure_compilers(compiler_action)
+
     # Write this job's spec json into the reproduction directory, and it will
     # also be used in the generated "spack install" command to install the spec
     tty.debug("job concrete spec path: {0}".format(job_spec_json_path))
@@ -622,7 +616,7 @@ def ci_rebuild(args):
     )
     reports_dir = fs.join_path(os.getcwd(), "cdash_report")
     if args.tests and broken_tests:
-        tty.warn("Unable to run stand-alone tests since listed in ci's 'broken-tests-packages'")
+        tty.warn("Unable to run stand-alone tests since listed in " "ci's 'broken-tests-packages'")
         if cdash_handler:
             msg = "Package is listed in ci's broken-tests-packages"
             cdash_handler.report_skipped(job_spec, reports_dir, reason=msg)
@@ -665,7 +659,7 @@ def ci_rebuild(args):
                     tty.warn("No recognized test results reporting option")
 
         else:
-            tty.warn("Unable to run stand-alone tests due to unsuccessful installation")
+            tty.warn("Unable to run stand-alone tests due to unsuccessful " "installation")
             if cdash_handler:
                 msg = "Failed to install the package"
                 cdash_handler.report_skipped(job_spec, reports_dir, reason=msg)
@@ -681,7 +675,7 @@ def ci_rebuild(args):
                 input_spec=job_spec,
                 buildcache_mirror_url=buildcache_mirror_url,
                 pipeline_mirror_url=pipeline_mirror_url,
-                sign_binaries=spack_ci.can_sign_binaries(),
+                pr_pipeline=spack_is_pr_pipeline,
             ):
                 msg = tty.msg if result.success else tty.warn
                 msg(
@@ -725,7 +719,7 @@ def ci_rebuild(args):
 
 \033[34mTo reproduce this build locally, run:
 
-    spack ci reproduce-build {0} [--working-dir <dir>] [--autostart]
+    spack ci reproduce-build {0} [--working-dir <dir>]
 
 If this project does not have public pipelines, you will need to first:
 
@@ -739,38 +733,19 @@ def ci_rebuild(args):
 
         print(reproduce_msg)
 
-    rebuild_timer.stop()
-    try:
-        with open("install_timers.json", "w") as timelog:
-            extra_attributes = {"name": ".ci-rebuild"}
-            rebuild_timer.write_json(timelog, extra_attributes=extra_attributes)
-    except Exception as e:
-        tty.debug(str(e))
-
     # Tie job success/failure to the success/failure of building the spec
     return install_exit_code
 
 
 def ci_reproduce(args):
-    """generate instructions for reproducing the spec rebuild job
+    """Generate instructions for reproducing the spec rebuild job.
 
-    artifacts of the provided gitlab pipeline rebuild job's URL will be used to derive
+    Artifacts of the provided gitlab pipeline rebuild job's URL will be
-    instructions for reproducing the build locally
+    used to derive instructions for reproducing the build locally."""
-    """
     job_url = args.job_url
     work_dir = args.working_dir
-    autostart = args.autostart
-    runtime = args.runtime
 
-    # Allow passing GPG key for reprocuding protected CI jobs
+    return spack_ci.reproduce_ci_job(job_url, work_dir)
-    if args.gpg_file:
-        gpg_key_url = url_util.path_to_file_url(args.gpg_file)
-    elif args.gpg_url:
-        gpg_key_url = args.gpg_url
-    else:
-        gpg_key_url = None
-
-    return spack_ci.reproduce_ci_job(job_url, work_dir, autostart, gpg_key_url, runtime)
 
 
 def ci(parser, args):