name: Run commitlint on PR

on:
  pull_request:

jobs:
  run-commitlint-on-pr:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Setup Node
        uses: actions/setup-node@v2
        with:
          node-version: 14.x

      - name: Install dependencies
        run: npm install -g @commitlint/cli @commitlint/config-conventional

      - name: Validate all commits from PR
        run: |
          npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose