name: "Pull Request Labeler"

on:
  pull_request_target:
    types: [opened, synchronize]

# pull_request_target runs on the base branch, so github.ref would put all pull
# requests into one group; group by pull request number instead
concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  label:
    permissions:
      contents: read
      pull-requests: write

    runs-on: ubuntu-latest

    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
        with:
          egress-policy: audit

      - uses: srvaroa/labeler@bf262763a8a8e191f5847873aecc0f29df84f957 # v1.14.0
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"