# Optional strict RC row check when PR is tagged release-candidate or touches the matrix file.
name: Release readiness RC row gate

on:
  pull_request:
    branches: [main]
    types: [opened, synchronize, reopened, labeled, unlabeled]

jobs:
  strict_rc_row:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Decide strict matrix check
        id: gate
        env:
          LABEL_NAMES: ${{ join(github.event.pull_request.labels.*.name, ',') }}
        run: |
          set -e
          if echo "$LABEL_NAMES" | grep -q 'release-candidate'; then
            echo "run=1" >> "$GITHUB_OUTPUT"
            exit 0
          fi
          if git diff --name-only "${{ github.event.pull_request.base.sha }}...HEAD" | grep -q '^docs/RELEASE_READINESS_MATRIX_AR\.md$'; then
            echo "run=1" >> "$GITHUB_OUTPUT"
            exit 0
          fi
          echo "run=0" >> "$GITHUB_OUTPUT"
      - name: Strict RC row (RELEASE_MATRIX_RC_ROW_REQUIRED)
        if: steps.gate.outputs.run == '1'
        run: RELEASE_MATRIX_RC_ROW_REQUIRED=1 python scripts/check_release_readiness_matrix.py
      - name: Skip strict RC row gate
        if: steps.gate.outputs.run != '1'
        run: echo "Skipping strict RC row gate (no release-candidate label; matrix file unchanged in this PR)."