Rename server->core (#638)

2 files changed, 368 insertions, 0 deletions

diff --git a/packages/core/src/config/config.test.ts b/packages/core/src/config/config.test.ts
new file mode 100644
index 00000000..f84ad746
--- /dev/null
+++ b/packages/core/src/config/config.test.ts
@@ -0,0 +1,109 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, it, expect, vi, beforeEach /*, afterEach */ } from 'vitest'; // afterEach removed as it was unused
+import { Config, createServerConfig, ConfigParameters } from './config.js'; // Adjust import path
+import * as path from 'path';
+// import { ToolRegistry } from '../tools/tool-registry'; // ToolRegistry removed as it was unused
+
+// Mock dependencies that might be called during Config construction or createServerConfig
+vi.mock('../tools/tool-registry', () => {
+  const ToolRegistryMock = vi.fn();
+  ToolRegistryMock.prototype.registerTool = vi.fn();
+  ToolRegistryMock.prototype.discoverTools = vi.fn();
+  ToolRegistryMock.prototype.getAllTools = vi.fn(() => []); // Mock methods if needed
+  ToolRegistryMock.prototype.getTool = vi.fn();
+  ToolRegistryMock.prototype.getFunctionDeclarations = vi.fn(() => []);
+  return { ToolRegistry: ToolRegistryMock };
+});
+
+// Mock individual tools if their constructors are complex or have side effects
+vi.mock('../tools/ls');
+vi.mock('../tools/read-file');
+vi.mock('../tools/grep');
+vi.mock('../tools/glob');
+vi.mock('../tools/edit');
+vi.mock('../tools/shell');
+vi.mock('../tools/write-file');
+vi.mock('../tools/web-fetch');
+vi.mock('../tools/read-many-files');
+
+describe('Server Config (config.ts)', () => {
+  const API_KEY = 'server-api-key';
+  const MODEL = 'gemini-pro';
+  const SANDBOX = false;
+  const TARGET_DIR = '/path/to/target';
+  const DEBUG_MODE = false;
+  const QUESTION = 'test question';
+  const FULL_CONTEXT = false;
+  const USER_AGENT = 'ServerTestAgent/1.0';
+  const USER_MEMORY = 'Test User Memory';
+  const baseParams: ConfigParameters = {
+    apiKey: API_KEY,
+    model: MODEL,
+    sandbox: SANDBOX,
+    targetDir: TARGET_DIR,
+    debugMode: DEBUG_MODE,
+    question: QUESTION,
+    fullContext: FULL_CONTEXT,
+    userAgent: USER_AGENT,
+    userMemory: USER_MEMORY,
+  };
+
+  beforeEach(() => {
+    // Reset mocks if necessary
+    vi.clearAllMocks();
+  });
+
+  it('Config constructor should store userMemory correctly', () => {
+    const config = new Config(baseParams);
+
+    expect(config.getUserMemory()).toBe(USER_MEMORY);
+    // Verify other getters if needed
+    expect(config.getApiKey()).toBe(API_KEY);
+    expect(config.getModel()).toBe(MODEL);
+    expect(config.getTargetDir()).toBe(path.resolve(TARGET_DIR)); // Check resolved path
+    expect(config.getUserAgent()).toBe(USER_AGENT);
+  });
+
+  it('Config constructor should default userMemory to empty string if not provided', () => {
+    const paramsWithoutMemory: ConfigParameters = { ...baseParams };
+    delete paramsWithoutMemory.userMemory;
+    const config = new Config(paramsWithoutMemory);
+
+    expect(config.getUserMemory()).toBe('');
+  });
+
+  it('createServerConfig should pass userMemory to Config constructor', () => {
+    const config = createServerConfig(baseParams);
+
+    // Check the result of the factory function
+    expect(config).toBeInstanceOf(Config);
+    expect(config.getUserMemory()).toBe(USER_MEMORY);
+    expect(config.getApiKey()).toBe(API_KEY);
+    expect(config.getUserAgent()).toBe(USER_AGENT);
+  });
+
+  it('createServerConfig should default userMemory if omitted', () => {
+    const paramsWithoutMemory: ConfigParameters = { ...baseParams };
+    delete paramsWithoutMemory.userMemory;
+    const config = createServerConfig(paramsWithoutMemory);
+
+    expect(config).toBeInstanceOf(Config);
+    expect(config.getUserMemory()).toBe(''); // Should default to empty string
+  });
+
+  it('createServerConfig should resolve targetDir', () => {
+    const relativeDir = './relative/path';
+    const expectedResolvedDir = path.resolve(relativeDir);
+    const paramsWithRelativeDir: ConfigParameters = {
+      ...baseParams,
+      targetDir: relativeDir,
+    };
+    const config = createServerConfig(paramsWithRelativeDir);
+    expect(config.getTargetDir()).toBe(expectedResolvedDir);
+  });
+});
diff --git a/packages/core/src/config/config.ts b/packages/core/src/config/config.ts
new file mode 100644
index 00000000..0cd7a4fa
--- /dev/null
+++ b/packages/core/src/config/config.ts
@@ -0,0 +1,259 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import * as dotenv from 'dotenv';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import process from 'node:process';
+import * as os from 'node:os';
+import { ToolRegistry } from '../tools/tool-registry.js';
+import { LSTool } from '../tools/ls.js';
+import { ReadFileTool } from '../tools/read-file.js';
+import { GrepTool } from '../tools/grep.js';
+import { GlobTool } from '../tools/glob.js';
+import { EditTool } from '../tools/edit.js';
+import { ShellTool } from '../tools/shell.js';
+import { WriteFileTool } from '../tools/write-file.js';
+import { WebFetchTool } from '../tools/web-fetch.js';
+import { ReadManyFilesTool } from '../tools/read-many-files.js';
+import { MemoryTool } from '../tools/memoryTool.js';
+import { WebSearchTool } from '../tools/web-search.js';
+
+export class MCPServerConfig {
+  constructor(
+    // For stdio transport
+    readonly command?: string,
+    readonly args?: string[],
+    readonly env?: Record<string, string>,
+    readonly cwd?: string,
+    // For sse transport
+    readonly url?: string,
+    // Common
+    readonly timeout?: number,
+    readonly trust?: boolean,
+  ) {}
+}
+
+export interface ConfigParameters {
+  apiKey: string;
+  model: string;
+  sandbox: boolean | string;
+  targetDir: string;
+  debugMode: boolean;
+  question?: string;
+  fullContext?: boolean;
+  coreTools?: string[];
+  toolDiscoveryCommand?: string;
+  toolCallCommand?: string;
+  mcpServerCommand?: string;
+  mcpServers?: Record<string, MCPServerConfig>;
+  userAgent: string;
+  userMemory?: string;
+  geminiMdFileCount?: number;
+  alwaysSkipModificationConfirmation?: boolean;
+  vertexai?: boolean;
+  showMemoryUsage?: boolean;
+}
+
+export class Config {
+  private toolRegistry: ToolRegistry;
+  private readonly apiKey: string;
+  private readonly model: string;
+  private readonly sandbox: boolean | string;
+  private readonly targetDir: string;
+  private readonly debugMode: boolean;
+  private readonly question: string | undefined;
+  private readonly fullContext: boolean;
+  private readonly coreTools: string[] | undefined;
+  private readonly toolDiscoveryCommand: string | undefined;
+  private readonly toolCallCommand: string | undefined;
+  private readonly mcpServerCommand: string | undefined;
+  private readonly mcpServers: Record<string, MCPServerConfig> | undefined;
+  private readonly userAgent: string;
+  private userMemory: string;
+  private geminiMdFileCount: number;
+  private alwaysSkipModificationConfirmation: boolean;
+  private readonly vertexai: boolean | undefined;
+  private readonly showMemoryUsage: boolean;
+
+  constructor(params: ConfigParameters) {
+    this.apiKey = params.apiKey;
+    this.model = params.model;
+    this.sandbox = params.sandbox;
+    this.targetDir = path.resolve(params.targetDir);
+    this.debugMode = params.debugMode;
+    this.question = params.question;
+    this.fullContext = params.fullContext ?? false;
+    this.coreTools = params.coreTools;
+    this.toolDiscoveryCommand = params.toolDiscoveryCommand;
+    this.toolCallCommand = params.toolCallCommand;
+    this.mcpServerCommand = params.mcpServerCommand;
+    this.mcpServers = params.mcpServers;
+    this.userAgent = params.userAgent;
+    this.userMemory = params.userMemory ?? '';
+    this.geminiMdFileCount = params.geminiMdFileCount ?? 0;
+    this.alwaysSkipModificationConfirmation =
+      params.alwaysSkipModificationConfirmation ?? false;
+    this.vertexai = params.vertexai;
+    this.showMemoryUsage = params.showMemoryUsage ?? false;
+
+    this.toolRegistry = createToolRegistry(this);
+  }
+
+  getApiKey(): string {
+    return this.apiKey;
+  }
+
+  getModel(): string {
+    return this.model;
+  }
+
+  getSandbox(): boolean | string {
+    return this.sandbox;
+  }
+
+  getTargetDir(): string {
+    return this.targetDir;
+  }
+
+  getToolRegistry(): ToolRegistry {
+    return this.toolRegistry;
+  }
+
+  getDebugMode(): boolean {
+    return this.debugMode;
+  }
+  getQuestion(): string | undefined {
+    return this.question;
+  }
+
+  getFullContext(): boolean {
+    return this.fullContext;
+  }
+
+  getCoreTools(): string[] | undefined {
+    return this.coreTools;
+  }
+
+  getToolDiscoveryCommand(): string | undefined {
+    return this.toolDiscoveryCommand;
+  }
+
+  getToolCallCommand(): string | undefined {
+    return this.toolCallCommand;
+  }
+
+  getMcpServerCommand(): string | undefined {
+    return this.mcpServerCommand;
+  }
+
+  getMcpServers(): Record<string, MCPServerConfig> | undefined {
+    return this.mcpServers;
+  }
+
+  getUserAgent(): string {
+    return this.userAgent;
+  }
+
+  getUserMemory(): string {
+    return this.userMemory;
+  }
+
+  setUserMemory(newUserMemory: string): void {
+    this.userMemory = newUserMemory;
+  }
+
+  getGeminiMdFileCount(): number {
+    return this.geminiMdFileCount;
+  }
+
+  setGeminiMdFileCount(count: number): void {
+    this.geminiMdFileCount = count;
+  }
+
+  getAlwaysSkipModificationConfirmation(): boolean {
+    return this.alwaysSkipModificationConfirmation;
+  }
+
+  setAlwaysSkipModificationConfirmation(skip: boolean): void {
+    this.alwaysSkipModificationConfirmation = skip;
+  }
+
+  getVertexAI(): boolean | undefined {
+    return this.vertexai;
+  }
+
+  getShowMemoryUsage(): boolean {
+    return this.showMemoryUsage;
+  }
+}
+
+function findEnvFile(startDir: string): string | null {
+  let currentDir = path.resolve(startDir);
+  while (true) {
+    const envPath = path.join(currentDir, '.env');
+    if (fs.existsSync(envPath)) {
+      return envPath;
+    }
+    const parentDir = path.dirname(currentDir);
+    if (parentDir === currentDir || !parentDir) {
+      // check ~/.env as fallback
+      const homeEnvPath = path.join(os.homedir(), '.env');
+      if (fs.existsSync(homeEnvPath)) {
+        return homeEnvPath;
+      }
+      return null;
+    }
+    currentDir = parentDir;
+  }
+}
+
+export function loadEnvironment(): void {
+  const envFilePath = findEnvFile(process.cwd());
+  if (!envFilePath) {
+    return;
+  }
+  dotenv.config({ path: envFilePath });
+}
+
+export function createServerConfig(params: ConfigParameters): Config {
+  return new Config({
+    ...params,
+    targetDir: path.resolve(params.targetDir), // Ensure targetDir is resolved
+    userAgent: params.userAgent ?? 'GeminiCLI/unknown', // Default user agent
+  });
+}
+
+export function createToolRegistry(config: Config): ToolRegistry {
+  const registry = new ToolRegistry(config);
+  const targetDir = config.getTargetDir();
+  const tools = config.getCoreTools()
+    ? new Set(config.getCoreTools())
+    : undefined;
+
+  // helper to create & register core tools that are enabled
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const registerCoreTool = (ToolClass: any, ...args: unknown[]) => {
+    // check both the tool name (.Name) and the class name (.name)
+    if (!tools || tools.has(ToolClass.Name) || tools.has(ToolClass.name)) {
+      registry.registerTool(new ToolClass(...args));
+    }
+  };
+
+  registerCoreTool(LSTool, targetDir);
+  registerCoreTool(ReadFileTool, targetDir);
+  registerCoreTool(GrepTool, targetDir);
+  registerCoreTool(GlobTool, targetDir);
+  registerCoreTool(EditTool, config);
+  registerCoreTool(WriteFileTool, config);
+  registerCoreTool(WebFetchTool, config);
+  registerCoreTool(ReadManyFilesTool, targetDir);
+  registerCoreTool(ShellTool, config);
+  registerCoreTool(MemoryTool);
+  registerCoreTool(WebSearchTool, config);
+  registry.discoverTools();
+  return registry;
+}