commitlint.yml

name: Commitlint

on:
  pull_request:
    types: [opened, edited, synchronize]
    branches: [master]
  push:
    branches: [master]

permissions:
  contents: read

concurrency:
  group: commitlint-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  commitlint:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Fetch PR commits (no checkout of PR code)
        if: github.event_name == 'pull_request'
        run: |
          git fetch origin +refs/pull/${{ github.event.number }}/head:refs/remotes/origin/pr/${{ github.event.number }}
          # sanity: ensure head sha is present locally
          git rev-parse --verify ${{ github.event.pull_request.head.sha }}

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2

      - name: Install commitlint dependencies
        run: |
          bun add -d @commitlint/cli@^20.1.0 commitlint-config-gitmoji@^2.3.1

      - name: Validate current commit (push)
        if: github.event_name == 'push'
        run: |
          bunx commitlint --from HEAD~1 --to HEAD --verbose

      - name: Validate PR commits
        if: github.event_name == 'pull_request'
        run: bunx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose