ci: avoid running coverage on package only PRs (#32573)

* ci: remove !docs from "core" filters

Written like it is now it causes package only PRs
to run with coverage.

* Try to skip job under condition, see if the workflow proceed

* Try to cancel a running CI job

* Simplify linux unit-tests, skip windows unit-tests on package PRs

* Reduce the inputs to unit-tests workflow

* Move control logic to main workflow, remove inputs

* Revert "Move control logic to main workflow, remove inputs"

This reverts commit 0c46fece4c.

* Do not compute "with_coverage" since it's always == to "core"

* Remove workflow dispatch from unit tests

* Revert "Revert "Move control logic to main workflow, remove inputs""

This reverts commit dd4e4a4e61.

* Try to skip all from the main workflow

* Add back bootstrap to needed checks for "all"

* Restore the correct logic for conditionals

.github/workflows/ci.yaml

@@ -19,12 +19,12 @@ jobs:
     needs: [ changes ]
     uses: ./.github/workflows/valid-style.yml
     with:
-      with_coverage: ${{ needs.changes.outputs.with_coverage }}
+      with_coverage: ${{ needs.changes.outputs.core }}
   audit-ancient-python:
     uses: ./.github/workflows/audit.yaml
     needs: [ changes ]
     with:
-      with_coverage: ${{ needs.changes.outputs.with_coverage }}
+      with_coverage: ${{ needs.changes.outputs.core }}
       python_version: 2.7
   all-prechecks:
     needs: [ prechecks ]
@@ -40,7 +40,6 @@ jobs:
       bootstrap: ${{ steps.filter.outputs.bootstrap }}
       core: ${{ steps.filter.outputs.core }}
       packages: ${{ steps.filter.outputs.packages }}
-      with_coverage: ${{ steps.coverage.outputs.with_coverage }}
     steps:
       - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
         if: ${{ github.event_name == 'push' }}
@@ -65,7 +64,6 @@ jobs:
             - 'share/spack/**'
             - '.github/workflows/bootstrap.yml'
             core:
-            - '!lib/spack/docs/**'
             - './!(var/**)/**'
             packages:
             - 'var/**'
@@ -75,18 +73,6 @@ jobs:
       # job outputs: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idoutputs
       # setting environment variables from earlier steps: https://docs.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-environment-variable
       #
-      - id: coverage
-        # Run the subsequent jobs with coverage if core has been modified,
-        # regardless of whether this is a pull request or a push to a branch
-        run: |
-          echo Core changes: ${{ steps.filter.outputs.core }}
-          echo Event name: ${{ github.event_name }}
-          if [ "${{ steps.filter.outputs.core }}" == "true" ]
-          then
-            echo "::set-output name=with_coverage::true"
-          else
-            echo "::set-output name=with_coverage::false"
-          fi
   bootstrap:
     if: ${{ github.repository == 'spack/spack' && needs.changes.outputs.bootstrap == 'true' }}
     needs: [ prechecks, changes ]
@@ -95,10 +81,6 @@ jobs:
     if: ${{ github.repository == 'spack/spack' && needs.changes.outputs.core == 'true' }}
     needs: [ prechecks, changes ]
     uses: ./.github/workflows/unit_tests.yaml
-    with:
-      core: ${{ needs.changes.outputs.core }}
-      packages: ${{ needs.changes.outputs.packages }}
-      with_coverage: ${{ needs.changes.outputs.with_coverage }}
   windows:
     if: ${{ github.repository == 'spack/spack' && needs.changes.outputs.core == 'true' }}
     needs: [ prechecks ]
@@ -109,4 +91,3 @@ jobs:
     steps:
     - name: Success
       run: "true"
-