pr-label.yml

name: PR Labeler

on:
  pull_request_target:
    types: [opened]

jobs:
  first-time-contributor:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Check if first-time contributor
        uses: actions/github-script@v7
        with:
          script: |
            const author = context.payload.pull_request.user.login;
            let isFirstTime = false;

            try {
              const { data: searchResult } = await github.rest.search.issuesAndPullRequests({
                q: `repo:${context.repo.owner}/${context.repo.repo} type:pr author:${author} is:closed`,
              });
              isFirstTime = searchResult.total_count === 0;
              if (!isFirstTime) {
                core.info(`${author} has ${searchResult.total_count} closed PRs, skipping label`);
              }
            } catch (err) {
              if (err.status === 422 && err.message && err.message.includes('cannot be searched')) {
                core.warning(`Search API cannot look up author ${author}, skipping first-time label`);
                return;
              }
              throw err;
            }

            if (isFirstTime) {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.payload.pull_request.number,
                labels: ['first-time-contributor'],
              });
              core.info(`Labeled PR #${context.payload.pull_request.number} as first-time-contributor`);
            }