conventional-commit.yml

name: Conventional Commits

on:
  pull_request:
    branches:
      - main

jobs:
  validate:
    name: Validate Conventional Commits
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Validate PR commit messages
        shell: bash
        run: |
          PATTERN="^(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert)(!)?(\([a-zA-Z0-9._-]+\))?: .+"
          BASE_SHA="${{ github.event.pull_request.base.sha }}"
          HEAD_SHA="${{ github.event.pull_request.head.sha }}"
          FAILED=0

          echo "Validating commits between $BASE_SHA and $HEAD_SHA..."

          while IFS= read -r line; do
            [ -z "$line" ] && continue
            commit_hash="${line%% *}"
            subject="${line#* }"

            if [[ "$subject" =~ $PATTERN ]]; then
              echo "✓ [$commit_hash] $subject"
            else
              echo "✗ [$commit_hash] $subject"
              echo "  Error: Commit subject does not follow Conventional Commits format."
              echo "  Pattern: $PATTERN"
              FAILED=1
            fi
          done < <(git log --no-merges --format="%H %s" "$BASE_SHA..$HEAD_SHA")

          if [ $FAILED -ne 0 ]; then
            echo ""
            echo "Validation failed: One or more non-merge commits do not follow Conventional Commits format."
            echo "Format requirement: <type>(<scope>): <description> or <type>: <description>"
            exit 1
          fi

          echo "All non-merge commits follow Conventional Commits format."