size-check.yml

name: Bundle Size Check

on:
  pull_request:
    branches: [master, develop]

permissions:
  contents: read
  pull-requests: write

jobs:
  size:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: pnpm/action-setup@v2
        with:
          version: 10

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'pnpm'

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Build packages
        run: pnpm build

      - name: Check bundle sizes
        id: size-check
        run: |
          # Create report
          REPORT="## 📦 Bundle Size Report\n\n"
          REPORT+="| Package | Size | Gzipped |\n"
          REPORT+="|---------|------|---------|"

          for pkg in packages/*/dist/index.js; do
            if [ -f "$pkg" ]; then
              name=$(echo $pkg | cut -d'/' -f2)
              size=$(stat -f%z "$pkg" 2>/dev/null || stat -c%s "$pkg" 2>/dev/null || echo "0")
              gzip_size=$(gzip -c "$pkg" | wc -c)
              size_kb=$((size / 1024))
              gzip_kb=$((gzip_size / 1024))
              REPORT+="\n| $name | ${size_kb}KB | ${gzip_kb}KB |"
            fi
          done

          # Save to step summary
          echo -e "$REPORT" >> $GITHUB_STEP_SUMMARY

          # Save to output file for PR comment
          echo -e "$REPORT" > size-report.txt

      - name: Comment PR
        uses: actions/github-script@v7
        if: github.event_name == 'pull_request'
        with:
          script: |
            const fs = require('fs');
            let body = '';

            try {
              body = fs.readFileSync('size-report.txt', 'utf8');
            } catch (error) {
              body = '## 📦 Bundle Size Report\n\nNo bundle files found to analyze.';
            }

            if (!body || body.trim() === '') {
              body = '## 📦 Bundle Size Report\n\nNo bundle files found to analyze.';
            }

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: body
            });