ci.yml

name: CI
on:
  push:
    branches: ["master", "src-layout"]
  pull_request:
    branches: ["master", "src-layout"]
  schedule:
    - cron: "0 12 1 * *"

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: true

jobs:
  generate-compatibility-matrix:
    name: >-
      Check for any uncommitted
      table alteration
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Determine Python versions
      run: |
        {
          echo 'PYTHON_VERSIONS<<EOF'
          cat  '.python-versions-used'
          echo 'EOF'
        } >> $GITHUB_ENV
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: ${{ env.PYTHON_VERSIONS }}
    - name: Install dependencies
      run: |
        python -m pip install -r requirements.txt
    - name: Generate compatibility matrix with nox
      continue-on-error: true
      run: |
        python -m nox --report report.json
    - name: Verify table has not been altered
      run: |
        set -xeEuo pipefail
        cat report.json
        python report_to_table.py
        git diff table.md
        {
          echo 'DIFF_FOR_TABLE<<EOF'
          git diff table.md
          echo 'EOF'
        } >> $GITHUB_OUTPUT
      id: verify-table
    - name: Fail the job if the committed table differs from the calculated one
      if: steps.verify-table.outputs.DIFF_FOR_TABLE != ''
      run: |
        echo "::error file=table.md::Table has been altered but not committed!"
        exit 1