react-navigation/.github/workflows/check-labels.yml

name: Check for labels
on:
  issues:
    types: [opened, edited]

jobs:
  check-labels:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v3
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const body = context.payload.issue.body;

            const packages = Array.from(
              body.matchAll(/- \[x\] @react-navigation\/([\S]+)/gim)
            )
              .map((match) => match[1])
              .filter((name) =>
                [
                  'bottom-tabs',
                  'drawer',
                  'material-bottom-tabs',
                  'material-top-tabs',
                  'stack',
                ].includes(name)
              )
              .map((name) => `package:${name}`);

            const platforms = Array.from(
              body.matchAll(/- \[x\] (Android|iOS|Web|Windows|MacOS)/gim)
            ).map((matches) => `platform:${matches[1].toLowerCase()}`);

            const labels = [...packages, ...platforms];

            if (labels.length) {
              await github.issues.addLabels({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                labels,
              });
            }