commit-message-check.yaml

name: Check Commit Messages

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

jobs:
  check-commit-messages:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Fetch base branch
        run: git fetch origin master

      - name: Get commit messages
        run: |
          COMMITS=$(git log origin/master..HEAD --pretty=format:"%s")
          echo "Commit messages:"
          echo "$COMMITS"
          echo "$COMMITS" > commits.txt

      - name: Validate commit messages
        run: |
          VALID_MESSAGES=$(grep -v '^Merge ' commits.txt)
          INVALID=$(echo "$VALID_MESSAGES" | grep -vE '^#[[:digit:]]+[[:space:]]{1}' || true)
          if [[ -n "$INVALID" ]]; then
            echo "🔴 The following commit messages are invalid:"
            echo "$INVALID"
            exit 1
          else
            echo "🟢 All commit messages are valid."
          fi