name: Conventional commits

on:
  pull_request:
    types: [opened, synchronize, reopened]

concurrency:
  group: docs-commits-${{ gitea.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  commits:
    runs-on: ubuntu-latest
    steps:
      - uses: https://github.com/actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0
      - uses: https://github.com/actions/setup-node@v4
        with:
          node-version-file: .nvmrc
      - run: npm ci --ignore-scripts
      - name: Check PR title and commits
        env:
          PR_TITLE: ${{ github.event.pull_request.title }}
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: |
          printf '%s\n' "$PR_TITLE" | npm run commitlint -- --strict
          npm run commitlint -- --strict --from "$BASE_SHA" --to "$HEAD_SHA"