label-pr.yml

name: Label PR Action
on:
  pull_request:
    types: [opened, reopened]

permissions:
  issues: write
  pull-requests: write
  id-token: write # This is required for requesting the JWT
  contents: read  # This is required for actions/checkout

jobs:
  labeler:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Label PR based on commit messages
        uses: actions/github-script@v5
        with:
          github-token: ${{ secrets.PAT }}
          script: |
            const { owner, repo, number: pull_number } = context.issue;
            const { data: commits } = await github.rest.pulls.listCommits({ owner, repo, pull_number });

            const labels = new Set();
            for (const { commit } of commits) {
              const message = commit.message.toLowerCase();
              if (message.includes('feature')) {
                labels.add('feature');
              }
              if (message.includes('enhancement')) {
                labels.add('enhancement');
              }
              if (message.includes('bugfix')) {
                labels.add('bugfix');
              }
              if (message.includes('chore')) {
                labels.add('chore');
              }
              if (message.includes('documentation')) {
                labels.add('documentation');
              }
            }

            if (labels.size > 0) {
              await github.rest.issues.addLabels({ owner, repo, issue_number: pull_number, labels: Array.from(labels) });
            }