claude-code-subagents-orchestrator/scripts/build-esm.js

Claude Code Sub-agents Orchestrator - A powerful MCP server for orchestrating multiple AI sub-agents for complex task execution in Claude Code

#!/usr/bin/env node

/**
 * ESM Build Script
 * Converts CommonJS modules to ESM format and handles package.json generation
 */

import fs from 'fs-extra';
import path from 'path';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const ROOT_DIR = path.resolve(__dirname, '..');
const DIST_DIR = path.join(ROOT_DIR, 'dist');
const ESM_DIR = path.join(DIST_DIR, 'esm');

async function buildESM() {
  console.log('🔨 Building ESM modules...');
  
  try {
    // Ensure ESM directory exists
    await fs.ensureDir(ESM_DIR);
    
    // Copy files from CJS build and modify for ESM
    const cjsFiles = await fs.readdir(path.join(DIST_DIR, 'cjs'), { recursive: true });
    
    for (const file of cjsFiles) {
      if (file.endsWith('.js')) {
        const cjsPath = path.join(DIST_DIR, 'cjs', file);
        const esmPath = path.join(ESM_DIR, file.replace('.js', '.esm.js'));
        
        let content = await fs.readFile(cjsPath, 'utf-8');
        
        // Convert require() to import statements
        content = content.replace(/const\s+(.+?)\s+=\s+require\(["'](.+?)["']\);?/g, 
          'import $1 from "$2";');
        
        // Convert module.exports to export default
        content = content.replace(/module\.exports\s*=\s*(.+);?/g, 'export default $1;');
        
        // Convert exports.X to export
        content = content.replace(/exports\.(\w+)\s*=\s*(.+);?/g, 'export const $1 = $2;');
        
        await fs.ensureDir(path.dirname(esmPath));
        await fs.writeFile(esmPath, content);
      }
    }
    
    // Create package.json for ESM directory
    const esmPackageJson = {
      type: 'module'
    };
    
    await fs.writeFile(
      path.join(ESM_DIR, 'package.json'),
      JSON.stringify(esmPackageJson, null, 2)
    );
    
    console.log('✅ ESM build completed successfully');
    
  } catch (error) {
    console.error('❌ ESM build failed:', error);
    process.exit(1);
  }
}

buildESM();