maintenance_bot.yaml

name: Maintenance Bot
on:
  pull_request_target:
    types: [opened, reopened, edited, ready_for_review, unlabeled]
jobs:
  labeler:
    name: Assign labels and milestone
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    env:
      MILESTONE_NUMBER: 28
    steps:
      - name: Get latest pull request labels
        id: get_pr_labels
        uses: actions/github-script@v7
        with:
          script: |
            const response = await github.rest.issues.listLabelsOnIssue({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
            });
            console.log(response);
            return response.data;
      - name: Add area labels
        if: ${{ ! contains(join(fromJSON(steps.get_pr_labels.outputs.result).*.name, ', '), 'area/') }}
        uses: actions/labeler@v5
      - name: Assign milestone
        if: |
          ! github.event.pull_request.milestone &&
          ! contains(github.event.pull_request.labels.*.name, 'merge') &&
          ! contains(github.event.pull_request.labels.*.name, 'status/WIP') &&
          ! contains(github.event.pull_request.title, 'WIP') &&
          ! github.event.pull_request.draft
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.update({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              milestone: ${{ env.MILESTONE_NUMBER }},
            });