barinsta/.github/workflows/label-duplicates.yml

name: Label duplicates

on:
  issue_comment:
    types: [created]

jobs:
  add-labels:
    runs-on: ubuntu-latest
    if: contains(github.event.comment.body, 'Duplicate of') == true
    steps:
      - name: Add labels
        uses: actions-cool/[email protected]
        with:
          actions: 'add-labels'
          token: ${{ secrets.GITHUB_TOKEN }}
          issue-number: ${{ github.event.issue.number }}
          labels: 'duplicate'
      - name: Remove runs
        uses: GongT/cancel-previous-workflows@master
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          DELETE: 'yes'