better_molecule_actions.yml

name: Molecule Testes on Push

"on":
  push:

jobs:
  find_changed_roles:
    runs-on: ubuntu-latest

    outputs:
      get_roles: ${{ steps.get_changed_paths.outputs.ansible_roles }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 2

      - name: Get Changed Files
        id: get_changed
        run: echo "::set-output name=files::$(git diff-tree --no-commit-id --name-only -r HEAD | xargs)"

      - name: Get Changed Roles
        id: get_changed_roles
        run: echo "::set-output name=roles::$(for i in ${{ steps.get_changed.outputs.files }} ; do echo $i | grep '/roles/' | awk -F '/' '{print $1 "/" $2 "/" $3 "/" $4 "/" $5 "/" $6 }'; done | sort | uniq | xargs )"

      - name: Format, so GitHub Actions can list over an output list
        id: get_changed_paths
        run: |
          content="[$(for l in ${{ steps.get_changed_roles.outputs.roles }} ; do echo \"$l\",; done )]"
          content="${content//'%'/'%25'}"
          content="${content//$'\n'/'%0A'}"
          content="${content//$'\r'/'%0D'}"
          echo "::set-output name=ansible_roles::$content"

  molecule_tests:
    runs-on: ubuntu-latest
    needs: find_changed_roles
    # Skip there is no change in any roles. Example change in a README.md
    if: ${{ needs.find_changed_roles.outputs.get_roles != '[]' }}
    strategy:
      matrix:
        value: ${{ fromJSON(needs.find_changed_roles.outputs.get_roles) }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Install Python 3.9
        uses: actions/setup-python@v4
        with:
          python-version: "pypy3.9"

      - name: Install Ansible Python packages
        run: pip3 install ansible molecule ansible-lint docker molecule[docker]

      - name: Run Molecule tests.
        run: molecule test --all
        env:
          PY_COLORS: "1"
          ANSIBLE_FORCE_COLOR: "1"
        working-directory: ${{ matrix.value }}