protobuf/.github/workflows/mergeable.yml

mergeable:
  pull_requests:
    label:
      and:
        - must_exclude:
            regex: '^disposition/DO NOT MERGE'
            message: 'Pull request marked not mergeable'
        - must_include:
            regex: 'mergeable:force-allow'
            message: 'Pull requests should not be merged directly and should instead '
              'be handled by Copybara.\n\n'
              'To enable Github merges, add the `mergeable:force-allow` label. This should almost '
              'never be used except for releases or as a break glass measure '
              'after discussing with the team.'