pr-compliance.yaml

name: Pull-Request Compliance
on:
  pull_request:
    types: [opened, edited, reopened]
  workflow_dispatch:

jobs:
  check-pr-title:
    name: Check PR title
    runs-on: ubuntu-22.04
    # See https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
    env:
      TITLE: ${{ github.event.pull_request.title }}
    steps:
      - name: Check title format
        run: |
          # has a colon which separates the area from the description
          # max 72 characters
          exit_code=0
          if [[ ! ${TITLE} =~ ^[^:]+:.+$ ]]; then
              echo "PR title must specify an area and a description, see README.md"
              exit_code=1
          fi
          if [[ ${#TITLE} -gt 72 ]]; then
              echo "PR title is too long, see README.md"
              exit_code=1
          fi
          exit $exit_code