name: "Check for merge conflicts"
on:
  # So that PRs touching the same files as the push are updated
  push:
  # So that the `dirtyLabel` is removed if conflicts are resolve
  # We recommend `pull_request_target` so that github secrets are available.
  # In `pull_request` we wouldn't be able to change labels of fork PRs
  pull_request_target:
    types: [synchronize]

jobs:
  main:
    runs-on: ubuntu-latest
    steps:
      - name: Check if PRs are have merge conflicts
        uses: eps1lon/actions-label-merge-conflict@v2.1.0
        with:
          dirtyLabel: "PR: Merge Conflict"
          repoToken: "${{ secrets.GITHUB_TOKEN }}"
          commentOnDirty: "This pull request has conflicts, please resolve those before we can evaluate the pull request."
          commentOnClean: "Conflicts have been resolved. A maintainer will review the pull request shortly."