remove-outdated-labels.yml

name: Remove outdated labels
on:
  # https://github.community/t/github-actions-are-severely-limited-on-prs/18179/15
  pull_request_target:
    types:
      - closed
jobs:
  remove-merged-pr-labels:
    name: Remove merged pull request labels
    if: github.event.pull_request.merged
    runs-on: ubuntu-latest
    steps:
      - uses: mondeja/remove-labels-gh-action@v1.1.1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          labels: |
            PR: waiting for review
            PR: WIP
            PR: changes requested
            PR: merge conflicts / rebase needed
            PR/Issue: dependent

  remove-closed-pr-labels:
    name: Remove closed pull request labels
    if: github.event_name == 'pull_request_target' && (! github.event.pull_request.merged)
    runs-on: ubuntu-latest
    steps:
      - uses: mondeja/remove-labels-gh-action@v1.1.1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          labels: |
            PR: waiting for review
            PR: WIP
            PR: changes requested
            PR: merge conflicts / rebase needed
            PR/Issue: dependent