fix: improve code in the installer to be more memory efficient

tools/installer/lib/module-manager.js

@@ -0,0 +1,110 @@
+/**
+ * Module Manager - Centralized dynamic import management
+ * Handles loading and caching of ES modules to reduce memory overhead
+ */
+
+class ModuleManager {
+  constructor() {
+    this._cache = new Map();
+    this._loadingPromises = new Map();
+  }
+
+  /**
+   * Initialize all commonly used ES modules at once
+   * @returns {Promise<Object>} Object containing all loaded modules
+   */
+  async initializeCommonModules() {
+    const modules = await Promise.all([
+      this.getModule('chalk'),
+      this.getModule('ora'),
+      this.getModule('inquirer')
+    ]);
+
+    return {
+      chalk: modules[0],
+      ora: modules[1],
+      inquirer: modules[2]
+    };
+  }
+
+  /**
+   * Get a module by name, with caching
+   * @param {string} moduleName - Name of the module to load
+   * @returns {Promise<any>} The loaded module
+   */
+  async getModule(moduleName) {
+    // Return from cache if available
+    if (this._cache.has(moduleName)) {
+      return this._cache.get(moduleName);
+    }
+
+    // If already loading, return the existing promise
+    if (this._loadingPromises.has(moduleName)) {
+      return this._loadingPromises.get(moduleName);
+    }
+
+    // Start loading the module
+    const loadPromise = this._loadModule(moduleName);
+    this._loadingPromises.set(moduleName, loadPromise);
+
+    try {
+      const module = await loadPromise;
+      this._cache.set(moduleName, module);
+      this._loadingPromises.delete(moduleName);
+      return module;
+    } catch (error) {
+      this._loadingPromises.delete(moduleName);
+      throw error;
+    }
+  }
+
+  /**
+   * Internal method to load a specific module
+   * @private
+   */
+  async _loadModule(moduleName) {
+    switch (moduleName) {
+      case 'chalk':
+        return (await import('chalk')).default;
+      case 'ora':
+        return (await import('ora')).default;
+      case 'inquirer':
+        return (await import('inquirer')).default;
+      case 'glob':
+        return (await import('glob')).glob;
+      case 'globSync':
+        return (await import('glob')).globSync;
+      default:
+        throw new Error(`Unknown module: ${moduleName}`);
+    }
+  }
+
+  /**
+   * Clear the module cache to free memory
+   */
+  clearCache() {
+    this._cache.clear();
+    this._loadingPromises.clear();
+  }
+
+  /**
+   * Get multiple modules at once
+   * @param {string[]} moduleNames - Array of module names
+   * @returns {Promise<Object>} Object with module names as keys
+   */
+  async getModules(moduleNames) {
+    const modules = await Promise.all(
+      moduleNames.map(name => this.getModule(name))
+    );
+
+    return moduleNames.reduce((acc, name, index) => {
+      acc[name] = modules[index];
+      return acc;
+    }, {});
+  }
+}
+
+// Singleton instance
+const moduleManager = new ModuleManager();
+
+module.exports = moduleManager;