ci-supported-pythons.yml

---
name: Use JSON output to build job matrix

on:
  push:
    branches: [main]
  pull_request:
  workflow_dispatch:

env:
  FORCE_COLOR: "1" # Make tools pretty.

jobs:
  build-package:
    name: Build & verify package
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
        with:
          repository: hynek/structlog
          path: structlog
          fetch-depth: 0
      - uses: actions/checkout@v4
        with:
          path: action
      - uses: ./action
        id: baipp
        with:
          path: structlog

    outputs:
      package-version: ${{ steps.baipp.outputs.package_version }}
      python-versions: ${{ steps.baipp.outputs.supported_python_classifiers_json_array }}
      # If your matrix consists only of Python versions, you can use the
      # following, too:
      # python-versions: ${{ steps.baipp.outputs.supported_python_classifiers_json_job_matrix_value }}

  test-supported-pythons:
    needs: build-package
    runs-on: ubuntu-latest
    strategy:
      matrix:
        # Create matrix from the 'python-versions' output from the build-package
        # job.
        python-version: ${{ fromJson(needs.build-package.outputs.python-versions) }}

      # If you set 'python-versions' to
      # 'supported_python_classifiers_json_job_matrix_value'
      # above, you would set the matrix like this instead:
      # matrix: ${{ fromJson(needs.build-package.outputs.python-versions) }}

    steps:
      - uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
          allow-prereleases: true

      - name: Download built packages from the build-package job.
        uses: actions/download-artifact@v4
        with:
          name: Packages
          path: dist

      - name: Prepare tests & config
        run: |
          # We use tox together with the fast tox-uv plugin.
          python -Im pip install tox-uv

          # Unpack SDist for tests & config files.
          tar xf dist/*.tar.gz --strip-components=1

          # Ensure tests run against wheel.
          rm -rf src

      # To conserve CI resources, we've commented the next step out to not
      # actually run the tests. Just remove the 'echo' to run them.
      - name: Run tox environments for ${{ matrix.python-version }}
        run: echo python -Im tox run --installpkg dist/*.whl -f py$(echo ${{ matrix.python-version }} | tr -d .)

  test-package-version:
    needs: build-package
    runs-on: ubuntu-latest

    steps:
      - uses: actions/setup-python@v5
        with:
          python-version: "3.x"

      - run: |
          echo "Package version: ${{ needs.build-package.outputs.package-version }}"

...