commit-msg.yml

---
name: commit-msg

on:
  push:
    branches: [main]
  pull_request:

permissions:
  contents: read

jobs:
  commitlint:
    runs-on: ubuntu-latest
    timeout-minutes: 5
    env:
      COMMITLINT_PACKAGE_VERSION: "1.0.3"
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: "24"

      - name: Cache conventional-commit-msg download
        uses: actions/cache@v5
        with:
          path: ~/.npm
          key: npm-conventional-commit-msg-${{ env.COMMITLINT_PACKAGE_VERSION }}

      - name: Validate commits with commitlint
        shell: bash
        run: |
          set -euo pipefail

          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
            npm exec --yes --package=conventional-commit-msg@${COMMITLINT_PACKAGE_VERSION} -- \
              conventional-commit-msg \
              --from "${{ github.event.pull_request.base.sha }}" \
              --to "${{ github.event.pull_request.head.sha }}"
          else
            npm exec --yes --package=conventional-commit-msg@${COMMITLINT_PACKAGE_VERSION} -- \
              conventional-commit-msg --last
          fi