prefactor(commands): Command Service Prefactor for Extensible Commands (#4511)

packages/cli/src/services/BuiltinCommandLoader.ts

@@ -0,0 +1,73 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { ICommandLoader } from './types.js';
+import { SlashCommand } from '../ui/commands/types.js';
+import { Config } from '@google/gemini-cli-core';
+import { aboutCommand } from '../ui/commands/aboutCommand.js';
+import { authCommand } from '../ui/commands/authCommand.js';
+import { bugCommand } from '../ui/commands/bugCommand.js';
+import { chatCommand } from '../ui/commands/chatCommand.js';
+import { clearCommand } from '../ui/commands/clearCommand.js';
+import { compressCommand } from '../ui/commands/compressCommand.js';
+import { copyCommand } from '../ui/commands/copyCommand.js';
+import { corgiCommand } from '../ui/commands/corgiCommand.js';
+import { docsCommand } from '../ui/commands/docsCommand.js';
+import { editorCommand } from '../ui/commands/editorCommand.js';
+import { extensionsCommand } from '../ui/commands/extensionsCommand.js';
+import { helpCommand } from '../ui/commands/helpCommand.js';
+import { ideCommand } from '../ui/commands/ideCommand.js';
+import { mcpCommand } from '../ui/commands/mcpCommand.js';
+import { memoryCommand } from '../ui/commands/memoryCommand.js';
+import { privacyCommand } from '../ui/commands/privacyCommand.js';
+import { quitCommand } from '../ui/commands/quitCommand.js';
+import { restoreCommand } from '../ui/commands/restoreCommand.js';
+import { statsCommand } from '../ui/commands/statsCommand.js';
+import { themeCommand } from '../ui/commands/themeCommand.js';
+import { toolsCommand } from '../ui/commands/toolsCommand.js';
+
+/**
+ * Loads the core, hard-coded slash commands that are an integral part
+ * of the Gemini CLI application.
+ */
+export class BuiltinCommandLoader implements ICommandLoader {
+  constructor(private config: Config | null) {}
+
+  /**
+   * Gathers all raw built-in command definitions, injects dependencies where
+   * needed (e.g., config) and filters out any that are not available.
+   *
+   * @param _signal An AbortSignal (unused for this synchronous loader).
+   * @returns A promise that resolves to an array of `SlashCommand` objects.
+   */
+  async loadCommands(_signal: AbortSignal): Promise<SlashCommand[]> {
+    const allDefinitions: Array<SlashCommand | null> = [
+      aboutCommand,
+      authCommand,
+      bugCommand,
+      chatCommand,
+      clearCommand,
+      compressCommand,
+      copyCommand,
+      corgiCommand,
+      docsCommand,
+      editorCommand,
+      extensionsCommand,
+      helpCommand,
+      ideCommand(this.config),
+      mcpCommand,
+      memoryCommand,
+      privacyCommand,
+      quitCommand,
+      restoreCommand(this.config),
+      statsCommand,
+      themeCommand,
+      toolsCommand,
+    ];
+
+    return allDefinitions.filter((cmd): cmd is SlashCommand => cmd !== null);
+  }
+}