pull-request-labels.yml

name: Pull Request Labels

on:
    pull_request:
        types: [opened]

jobs:
    pull-request-labeler:

        runs-on: ubuntu-latest

        permissions:
            pull-requests: write

        steps:

            - name: Add label to pull request
              uses: actions/github-script@v6
              with:
                  script: |
                      const title = context.payload.pull_request.title.toLowerCase();
                      if (!title) return;
                      
                      function getLabelFromTitle(title) {
                          if (title.includes('feat!:')) return 'breaking change';
                          if (title.includes('fix:')) return 'fix';
                          if (title.includes('feat:')) return 'feature';
                          return null;
                      }
                  
                      const label = getLabelFromTitle(title);
                      if (label) {
                          github.rest.issues.addLabels({
                              issue_number: context.issue.number,
                              owner: context.repo.owner,
                              repo: context.repo.repo,
                              labels: [label] 
                          });
                      }