pr-auto-label.yml

name: Auto Label PR

on:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  label:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      
      - name: Detect changed apps
        id: detect
        run: |
          # Get changed files between base and head
          BASE_SHA="${{ github.event.pull_request.base.sha }}"
          HEAD_SHA="${{ github.event.pull_request.head.sha }}"
          
          FILES=$(git diff --name-only $BASE_SHA $HEAD_SHA)
          
          echo "Changed files:"
          echo "$FILES"
          
          # Check for web changes
          if echo "$FILES" | grep -q "^apps/web/"; then
            echo "web=true" >> $GITHUB_OUTPUT
            echo "✓ Detected changes in apps/web"
          else
            echo "web=false" >> $GITHUB_OUTPUT
          fi
          
          # Check for admin changes
          if echo "$FILES" | grep -q "^apps/admin/"; then
            echo "admin=true" >> $GITHUB_OUTPUT
            echo "✓ Detected changes in apps/admin"
          else
            echo "admin=false" >> $GITHUB_OUTPUT
          fi
      
      - name: Add labels
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const labels = [];
            
            if ('${{ steps.detect.outputs.web }}' === 'true') {
              labels.push('web');
            }
            
            if ('${{ steps.detect.outputs.admin }}' === 'true') {
              labels.push('admin');
            }
            
            if (labels.length > 0) {
              console.log(`Adding labels: ${labels.join(', ')}`);
              
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                labels: labels
              });
            } else {
              console.log('No app-specific changes detected');
            }