name: Changelog Check

on:
  pull_request:
    branches: [ master ]
    types: [ opened, synchronize, reopened, ready_for_review, labeled, unlabeled ]

jobs:
  check-changelog:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      # Gives an error if there's no change in the changelog (except using label)
      - name: Changelog check
        uses: dangoslen/changelog-enforcer@v2.3.1
        with:
          changeLogPath: 'CHANGELOG.md'
          skipLabels: 'no changelog entry needed, ci, submodules'