pull_request_labeler.yaml

name: pull_request_labeler
on:
  pull_request:
    types: [edited, opened, synchronize, reopened]
jobs:
  # Check if the pull request is a fork
  # We can assign labels to a pull request only if it originates from the original repository. If a
  # contributor forks the repository and creates a pull request from their forked version, the labeler
  # actions do not have permission to access the PR's content, thus unable to automatically add
  # labels. In such cases, the repository maintainers will need to add labels manually until a
  # better solution is found.
  check_repository_origin:
    runs-on: ubuntu-22.04
    outputs:
      fork: ${{ steps.check_repository_origin.outputs.fork }}
    steps:
      - name: Check the Pull Request origin
        id: check_repository_origin
        run: |
          if [ "${{ github.event.pull_request.head.repo.full_name }}" == "${{ github.event.pull_request.base.repo.full_name }}" ]; then
            echo "Pull Request is from the original repository."
            echo "fork=false" >> $GITHUB_OUTPUT
          else
            echo "Pull Request is from a forked repository."
            echo "fork=true" >> $GITHUB_OUTPUT
          fi
  # Auto assigne reviewers and PR author
  add-reviews:
    needs: check_repository_origin
    runs-on: ubuntu-22.04
    if: ${{ needs.check_repository_origin.outputs.fork == 'false' }}
    steps:
      - uses: kentaro-m/auto-assign-action@v1.2.5
        with:
          configuration-path: .github/config/auto-assign.yml
  # Add source labels to the PR
  label_based_on_source_lang:
    permissions:
      contents: read
      pull-requests: write
    needs: check_repository_origin
    runs-on: ubuntu-22.04
    if: ${{ needs.check_repository_origin.outputs.fork == 'false' }}
    steps:
      - uses: actions/labeler@v4
        with:
          configuration-path: .github/config/labeler.yml
  #  Add scope & type labels to the PR
  label_based_on_title:
    permissions:
      contents: read
      pull-requests: write
    needs: check_repository_origin
    runs-on: ubuntu-22.04
    if: ${{ needs.check_repository_origin.outputs.fork == 'false' }}
    steps:
      - uses: github/issue-labeler@v3.1
        with:
          configuration-path: .github/config/title_label_config.yml
          include-title: 1
          repo-token: ${{ github.token }}
          enable-versioned-regex: 0