Moved flake8, shell and documentation tests to Github Action (#17328)

* Move flake8 tests on Github Actions

* Move shell test to Github Actions

* Moved documentation build to Github Action

* Don't run coverage on Python 2.6

Since we get connection errors consistently on Travis
when trying to upload coverage results for Python 2.6,
avoid computing coverage entirely to speed-up tests.

.travis.yml

@@ -1,6 +1,3 @@
-#=============================================================================
-# Project settings
-#=============================================================================
 # Only build master and develop on push; do not build every branch.
 branches:
   only:
@@ -8,107 +5,30 @@ branches:
     - develop
     - /^releases\/.*$/
 
-#=============================================================================
-# Build matrix
-#=============================================================================
-
-dist: bionic
-
-jobs:
-  fast_finish: true
-  include:
-    - stage: 'style checks'
-      python: '3.8'
-      os: linux
-      language: python
-      env: TEST_SUITE=flake8
-    - stage: 'unit tests + documentation'
-      python: '2.6'
-      dist: trusty
-      os: linux
-      language: python
-      addons:
-        apt:
-          # Everything but patchelf, that is not available for trusty
-          packages:
-            - ccache
-            - gfortran
-            - graphviz
-            - gnupg2
-            - kcov
-            - mercurial
-            - ninja-build
-            - realpath
-            - zsh
-            - fish
-      env: [ TEST_SUITE=unit, COVERAGE=true ]
-    - python: '3.8'
-      os: linux
-      language: python
-      env: [ TEST_SUITE=shell, COVERAGE=true, KCOV_VERSION=38 ]
-    - python: '3.8'
-      os: linux
-      language: python
-      env: TEST_SUITE=doc
-
-stages:
-  - 'style checks'
-  - 'unit tests + documentation'
-
-
-#=============================================================================
-# Environment
-#=============================================================================
-
-# Docs need graphviz to build
+language: python
+python: '2.6'
+dist: trusty
+os: linux
 addons:
-  # for Linux builds, we use APT
   apt:
     packages:
-      - ccache
-      - coreutils
       - gfortran
       - graphviz
       - gnupg2
+      - kcov
       - mercurial
       - ninja-build
-      - patchelf
+      - realpath
       - zsh
       - fish
-    update: true
-
-# ~/.ccache needs to be cached directly as Travis is not taking care of it
-# (possibly because we use 'language: python' and not 'language: c')
-cache:
-  pip: true
-  ccache: true
-  directories:
-    - ~/.ccache
-
-before_install:
-  - ccache -M 2G && ccache -z
-  # Install kcov manually, since it's not packaged for bionic beaver
-  - if [[ "$KCOV_VERSION" ]]; then
-        sudo apt-get -y install cmake binutils-dev libcurl4-openssl-dev zlib1g-dev libdw-dev libiberty-dev;
-        KCOV_ROOT=$(mktemp -d);
-        wget --output-document=${KCOV_ROOT}/${KCOV_VERSION}.tar.gz https://github.com/SimonKagstrom/kcov/archive/v${KCOV_VERSION}.tar.gz;
-        tar -C ${KCOV_ROOT} -xzvf ${KCOV_ROOT}/${KCOV_VERSION}.tar.gz;
-        mkdir -p ${KCOV_ROOT}/build;
-        cd ${KCOV_ROOT}/build && cmake -Wno-dev ${KCOV_ROOT}/kcov-${KCOV_VERSION} && cd - ;
-        make -C ${KCOV_ROOT}/build && sudo  make -C ${KCOV_ROOT}/build install;
-    fi
 
 # Install various dependencies
 install:
   - pip install --upgrade pip
   - pip install --upgrade six
   - pip install --upgrade setuptools
-  - pip install --upgrade codecov coverage==4.5.4
   - pip install --upgrade flake8
   - pip install --upgrade pep8-naming
-  - if [[ "$TEST_SUITE" == "doc" ]]; then
-        pip install --upgrade -r lib/spack/docs/requirements.txt;
-    fi
 
 before_script:
   # Need this for the git tests to succeed.
@@ -118,31 +38,12 @@ before_script:
   # Need this to be able to compute the list of changed files
   - git fetch origin ${TRAVIS_BRANCH}:${TRAVIS_BRANCH}
 
-#=============================================================================
-# Building
-#=============================================================================
 script:
-  - share/spack/qa/run-$TEST_SUITE-tests
+  - python bin/spack -h
+  - python bin/spack help -a
+  - python bin/spack -p --lines 20 spec mpileaks%gcc ^elfutils@0.170
+  - python bin/spack test -x --verbose
 
-after_success:
-  - ccache -s
-  - case "$TEST_SUITE" in
-        unit)
-            if [[ "$COVERAGE" == "true" ]]; then
-                codecov --env PYTHON_VERSION
-                        --required
-                        --flags "${TEST_SUITE}${TRAVIS_OS_NAME}";
-            fi
-            ;;
-        shell)
-            codecov --env PYTHON_VERSION
-            --required
-            --flags "${TEST_SUITE}${TRAVIS_OS_NAME}";
-    esac
-
-#=============================================================================
-# Notifications
-#=============================================================================
 notifications:
   email:
     recipients: