react/.github/workflows/shared_core_label.yml

name: (Shared) Core Label

on:
  pull_request_target:

env:
  TZ: /usr/share/zoneinfo/America/Los_Angeles
  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout
  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1

jobs:
  core_label:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Check if actor is maintainer
        id: check_maintainer
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const actor = '${{ github.actor }}';
            const data = await fs.readFileSync('./MAINTAINERS', { encoding: 'utf8' });
            const maintainers = new Set(data.split('\n'));
            if (maintainers.has(actor)) {
              console.log(`🟢 ${actor} is a maintainer`);
              return true;
            }
            console.log(`🔴 ${actor} is NOT a maintainer`);
            return null;
      - name: Label PR as React Core Team
        if: ${{ steps.check_maintainer.outputs.result }}
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ github.event.number }},
              labels: ['React Core Team']
            });