check-commit-format.yml

# following the contribution guide this check enforces the commit format
# [JIRA-TICKET] | [TYPE] : <MESSAGE>
name: 'Validate Commit Messages'
on:
  pull_request:
    types:
      - opened
      - edited
      - reopened
      - synchronize
  pull_request_target:
    types:
      - opened
      - edited
      - reopened
      - synchronize

jobs:
  parse-commit-messages:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.ref }}
      - name: Validate Commit Message(s)
        run: |
          IFS=$'\n' commit_messages=($(git log --pretty=format:"%s" HEAD...${{ github.event.pull_request.base.sha }}))          
          
          for message in "${commit_messages[@]}"
          do
          echo "validating $message"
          if ! echo "$message" | grep -qE "^[A-Z]+-[0-9]+ \| (feat|fix|docs|style|refactor|test|chore|build|ci|perf) : .*$"; then
            echo "Invalid commit message format. Expected format: JIRA_TICKET | TYPE : MESSAGE"
            exit 1
          fi
          done