on: [pull_request, push]
jobs:
  build:
    # Prevent duplicate builds for 'internal' pull requests on existing commits
    # Credit: https://github.community/t/duplicate-checks-on-push-and-pull-request-simultaneous-event/18012
    if: github.event.push || github.event.pull_request.head.repo.full_name != github.repository
    strategy:
      fail-fast: false
      matrix:
        # 2.7 and 3.7 run on Windows via AppVeyor
        python: ["3.8", "3.9", "3.10", "3.11", "3.12"]
        os: [ubuntu-latest, windows-latest]
        deps: [base, optional]
        include:
          - python: "pypy-2.7"
            os: ubuntu-latest
            deps: base
          - python: "pypy-3.10"
            os: ubuntu-latest
            deps: base
          - python: "3.8"
            os: ubuntu-latest
            deps: oldest
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: true
      - if: ${{ matrix.deps == 'base' }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python }}
          cache: pip
          cache-dependency-path: |
            requirements.txt
            requirements-test.txt
      - if: ${{ matrix.deps == 'optional' }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python }}
          cache: pip
          cache-dependency-path: |
            requirements.txt
            requirements-optional.txt
            requirements-test.txt
      - if: ${{ matrix.deps == 'oldest' }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python }}
          cache: pip
          cache-dependency-path: |
            requirements-oldest.txt
      - if: ${{ matrix.os == 'windows-latest' }}
        name: Determine environment name for Tox (PowerShell)
        run: python toxver.py ${{ matrix.python }} ${{ matrix.deps }} >> $env:GITHUB_ENV
      - if: ${{ matrix.os == 'ubuntu-latest' }}
        name: Determine environment name for Tox (Bash)
        run: python toxver.py ${{ matrix.python }} ${{ matrix.deps }} >> $GITHUB_ENV
      - run: pip install tox
      - run: tox
      - if: ${{ always() }}
        run: python debug-info.py