.github/workflows/pull_request_label.yml

# This workflow applies labels to pull requests based on the
# paths that are modified in the pull request.
#
# Edit `.github/labeler.yml` and `.github/post_merge_labeler.yml`
# to configure labels.
#
# For more information, see: https://github.com/actions/labeler

name: Pull Request Labeler

on:
  pull_request_target:
    types: [opened, synchronize, reopened, closed]

jobs:
  label:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/labeler@v3
        with:
          repo-token: "${{ secrets.GITHUB_TOKEN }}"
          sync-labels: true

  post_merge_label:
    if: github.event.action == 'closed' && github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      - uses: actions/labeler@v3
        with:
          repo-token: "${{ secrets.GITHUB_TOKEN }}"
          configuration-path: .github/post_merge_labeler.yml