enforce-do-not-merge-label.yml

name: Check Do Not Merge Label

on:
  pull_request:
    types:
      - opened
      - labeled
      - unlabeled

jobs:
  fail-for-do-not-merge:
    runs-on: ubuntu-latest
    steps:
      - name: Fail if PR is labelled with "do not merge"
        if: contains(github.event.pull_request.labels.*.name, '🚨　DO NOT MERGE')
        run: |
          echo "This PR is labelled with "do not merge"."
          exit 1