.github/workflows/changelog_reminder.yml

# A CI workflow to remind the contributor to update the changelog.

name: Changelog Reminder

on:
  pull_request:
    types: [synchronize, opened, reopened, labeled, unlabeled]
    paths:
      - '**/*.dart'

jobs:
  changelog-reminder:
    if: ${{ !contains(github.event.*.labels.*.name, 'changelog-not-required') }}
    name: Maybe prevent submission
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
      - name: Check changed files
        run: |
          git fetch origin master
          PR_DIFF=$(git diff origin/master --name-only)
          echo "$PR_DIFF"
          if [[ $PR_DIFF == *"CHANGELOG.md"* ]]; then
            echo "CHANGELOG.md has been updated."
            exit 0;
          fi
          echo "Did not detect an update to the CHANGELOG.md in this PR."
          echo "Please update the CHANGELOG.md, or add the 'changelog-not-required' label."
          exit 1