labeller-file-based.yaml

---
name: Labeller (file-based)
"on":
  workflow_call:
    inputs:
      extra-rules:
        description: 'YAML describing the additional labelling rules respecting the actions/labeler dialect'
        required: false
        type: string
  pull_request:

concurrency:
  # Group workflow jobs so new commits cancels in-progress execution triggered by previous commits. Source:
  # https://mail.python.org/archives/list/pypa-committers@python.org/thread/PCBCQMJF64JGRBOX7E2EE4YLKHT4DI55/
  # https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/control-the-concurrency-of-workflows-and-jobs
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: true

jobs:

  labeller:
    name: File-based PR labeller
    # Skip labelling:
    # 1. On prepare-release branch as it points to a tagged URL that does not exist yet.
    # 2. If PR was created/triggered by a bot. That way we can prevent content-rich PRs (like those produced by
    #    dependabot) to be overly tagged with extra labels.
    if: >
      github.head_ref != 'prepare-release'
      && github.event.sender.type != 'Bot'
      && github.actor != 'dependabot[bot]'
      && github.actor != 'dependabot-preview[bot]'
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v6.0.0
      - name: Download default rules
        run: >
          curl -fsSL --output ./.github/labeller-file-based.yaml
          https://raw.githubusercontent.com/kdeldycke/workflows/main/.github/labeller-file-based.yaml
      - name: Extend default rules
        if: inputs.extra-rules
        run: |
          tee -a ./.github/labeller-file-based.yaml <<-EOF

          ${{ inputs.extra-rules }}
          EOF
      - name: Print all rules
        run: |
          cat ./.github/labeller-file-based.yaml
      - name: Apply rules
        uses: actions/labeler@v6.0.1
        with:
          configuration-path: ".github/labeller-file-based.yaml"
          sync-labels: true