on:
  pull_request:

name: Pull Request Checks

jobs:
  commit-lint:
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - uses: actions/setup-python@v4
        with:
          python-version: '3.x'
      - run: pip install gitlint
      - run: gitlint --commits $(git merge-base origin/master HEAD)..HEAD