compatibility.yml

name: Test Compatibility

on:
  push:
    paths:
      - pyproject.toml
  workflow_dispatch:

permissions:
  contents: read

jobs:
  prepare:
    runs-on: ubuntu-latest
    outputs:
      versions: ${{ steps.parser.outputs.versions || '[]' }}
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 2

      - name: Check license line changed
        id: check
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            echo "changed=true" >> "$GITHUB_OUTPUT"
          elif git diff HEAD~1 HEAD -- pyproject.toml | grep -q '^[+-].*license = "Apache-2.0"'; then
            echo "changed=true" >> "$GITHUB_OUTPUT"
          else
            echo "changed=false" >> "$GITHUB_OUTPUT"
          fi

      - uses: actions/setup-python@v6
        if: steps.check.outputs.changed == 'true'
        with:
          python-version: "3.14"

      - name: Generate version matrix
        if: steps.check.outputs.changed == 'true'
        id: parser
        run: |
          python -m pip install --upgrade requests packaging
          versions=$(python .github/scripts/ci_loop_versions.py setuptools ">=77.0.1,<83")
          echo "versions=$versions" >> "$GITHUB_OUTPUT"

  check:
    needs: prepare
    if: needs.prepare.outputs.versions != '[]'
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        version: ${{ fromJSON(needs.prepare.outputs.versions) }}

    steps:
      - uses: actions/checkout@v6
      - uses: actions/setup-python@v6
        with:
          python-version: "3.14"
          cache: pip

      - name: Install package with selected setuptools
        run: |
          python -m pip install --upgrade pip
          python -m pip install . "setuptools==${{ matrix.version }}"

      - name: Show versions
        run: |
          python --version
          python -m pip show setuptools