feat: 实现 Hook 系统

参考 open-code 的实现,添加工具执行前后的 hook 功能:

- 添加 Hook 类型定义 (tool.execute.before/after, file.edited/created/deleted 等)
- 实现 HookManager 管理器,支持插件注册和事件触发
- 实现配置文件加载器,支持 .ai-assistant.json/jsonc 格式
- 支持 glob 模式匹配文件触发 shell 命令
- 集成到 Agent 工具执行流程
- 添加 minimatch 依赖用于 glob 匹配
- 编写完整测试用例 (27 个测试)

配置示例:
```json
{
  "hooks": {
    "file_edited": {
      "*.ts": [{ "command": ["npx", "tsc", "--noEmit"] }]
    }
  }
}
```
This commit is contained in:
2025-12-11 23:12:04 +08:00
parent 89673e28cb
commit 630ce9fd4b
8 changed files with 1667 additions and 1 deletions
+37
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@@ -18,6 +18,7 @@
"commander": "^12.1.0",
"inquirer": "^12.0.0",
"js-yaml": "^4.1.1",
"minimatch": "^10.1.1",
"ora": "^8.1.0",
"qwen-ai-provider-v5": "^1.0.2",
"tree-sitter-bash": "^0.25.1",
@@ -972,6 +973,27 @@
}
}
},
"node_modules/@isaacs/balanced-match": {
"version": "4.0.1",
"resolved": "https://registry.npmjs.org/@isaacs/balanced-match/-/balanced-match-4.0.1.tgz",
"integrity": "sha512-yzMTt9lEb8Gv7zRioUilSglI0c0smZ9k5D65677DLWLtWJaXIS3CqcGyUFByYKlnUj6TkjLVs54fBl6+TiGQDQ==",
"license": "MIT",
"engines": {
"node": "20 || >=22"
}
},
"node_modules/@isaacs/brace-expansion": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/@isaacs/brace-expansion/-/brace-expansion-5.0.0.tgz",
"integrity": "sha512-ZT55BDLV0yv0RBm2czMiZ+SqCGO7AvmOM3G/w2xhVPH+te0aKgFjmBvGlL1dH+ql2tgGO3MVrbb3jCKyvpgnxA==",
"license": "MIT",
"dependencies": {
"@isaacs/balanced-match": "^4.0.1"
},
"engines": {
"node": "20 || >=22"
}
},
"node_modules/@jridgewell/resolve-uri": {
"version": "3.1.2",
"resolved": "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz",
@@ -2438,6 +2460,21 @@
"url": "https://github.com/sponsors/sindresorhus"
}
},
"node_modules/minimatch": {
"version": "10.1.1",
"resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.1.1.tgz",
"integrity": "sha512-enIvLvRAFZYXJzkCYG5RKmPfrFArdLv+R+lbQ53BmIMLIry74bjKzX6iHAm8WYamJkhSSEabrWN5D97XnKObjQ==",
"license": "BlueOak-1.0.0",
"dependencies": {
"@isaacs/brace-expansion": "^5.0.0"
},
"engines": {
"node": "20 || >=22"
},
"funding": {
"url": "https://github.com/sponsors/isaacs"
}
},
"node_modules/ms": {
"version": "2.1.3",
"resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+1
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@@ -35,6 +35,7 @@
"commander": "^12.1.0",
"inquirer": "^12.0.0",
"js-yaml": "^4.1.1",
"minimatch": "^10.1.1",
"ora": "^8.1.0",
"qwen-ai-provider-v5": "^1.0.2",
"tree-sitter-bash": "^0.25.1",
+69 -1
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@@ -19,6 +19,7 @@ import type { AgentInfo, ImageData } from '../agent/types.js';
import { agentRegistry, AgentExecutor } from '../agent/index.js';
import { loadVisionConfig } from '../utils/config.js';
import { getModelFactory } from './providers.js';
import { getHookManager } from '../hooks/index.js';
export class Agent {
private getModel: (model: string) => LanguageModel;
@@ -142,6 +143,7 @@ export class Agent {
private getVercelTools(): Record<string, AITool> {
const vercelTools: Record<string, AITool> = {};
const availableTools = this.getAvailableTools();
const hookManager = getHookManager();
for (const tool of availableTools) {
const schema = buildZodSchema(tool.parameters);
@@ -150,7 +152,73 @@ export class Agent {
description: tool.description,
inputSchema: schema,
execute: async (params) => {
const result = await tool.execute(params as Record<string, unknown>);
const args = params as Record<string, unknown>;
const callId = `${tool.name}-${Date.now()}`;
const sessionId = this.sessionManager?.getSession()?.id || 'default';
// 触发工具执行前 hook
let finalArgs = args;
if (hookManager) {
const beforeOutput = await hookManager.triggerToolExecuteBefore({
tool: tool.name,
sessionId,
callId,
args,
});
// 如果 hook 指定跳过,直接返回
if (beforeOutput.skip && beforeOutput.skipResult) {
return beforeOutput.skipResult;
}
finalArgs = beforeOutput.args;
}
// 执行工具
const startTime = Date.now();
let result = await tool.execute(finalArgs);
const duration = Date.now() - startTime;
// 触发工具执行后 hook
if (hookManager) {
const afterOutput = await hookManager.triggerToolExecuteAfter(
{
tool: tool.name,
sessionId,
callId,
args: finalArgs,
duration,
},
result
);
result = afterOutput.result;
// 对于文件操作工具,触发相应的文件 hook
if (result.success) {
const filePath = finalArgs.path as string | undefined;
if (filePath) {
if (tool.name === 'write_file') {
await hookManager.triggerFileCreated({
path: filePath,
tool: tool.name,
sessionId,
});
} else if (tool.name === 'edit_file') {
await hookManager.triggerFileEdited({
path: filePath,
tool: tool.name,
sessionId,
});
} else if (tool.name === 'delete_file') {
await hookManager.triggerFileDeleted({
path: filePath,
tool: tool.name,
sessionId,
});
}
}
}
}
// 如果是 tool_search 调用,解析结果并注入发现的工具
if (tool.name === 'tool_search' && result.success) {
+232
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@@ -0,0 +1,232 @@
/**
* Hook 配置加载器
*
* 从项目配置文件加载 hook 配置
* 支持 .ai-assistant.json, .ai-assistant.jsonc, ai-assistant.config.json 等格式
*/
import * as fs from 'fs/promises';
import * as path from 'path';
import type { HookConfig, ShellCommandConfig, FileHookConfig } from './types.js';
// 支持的配置文件名
const CONFIG_FILE_NAMES = [
'.ai-assistant.json',
'.ai-assistant.jsonc',
'ai-assistant.config.json',
'.ai-assistantrc',
'.ai-assistantrc.json',
];
/**
* 完整的配置文件结构
*/
export interface ProjectConfig {
/** Hook 配置 */
hooks?: HookConfig;
/** 插件列表 */
plugins?: string[];
/** 其他配置... */
[key: string]: unknown;
}
/**
* 移除 JSON 中的注释(支持 JSONC 格式)
*/
function stripJsonComments(jsonString: string): string {
// 移除单行注释 // ...
let result = jsonString.replace(/\/\/.*$/gm, '');
// 移除多行注释 /* ... */
result = result.replace(/\/\*[\s\S]*?\*\//g, '');
return result;
}
/**
* 解析 JSON 文件(支持 JSONC
*/
async function parseJsonFile(filePath: string): Promise<ProjectConfig | null> {
try {
const content = await fs.readFile(filePath, 'utf-8');
const cleanContent = stripJsonComments(content);
return JSON.parse(cleanContent);
} catch {
return null;
}
}
/**
* 在目录中查找配置文件
*/
async function findConfigFile(directory: string): Promise<string | null> {
for (const fileName of CONFIG_FILE_NAMES) {
const filePath = path.join(directory, fileName);
try {
await fs.access(filePath);
return filePath;
} catch {
// 文件不存在,继续查找
}
}
return null;
}
/**
* 验证 ShellCommandConfig
*/
function validateShellCommandConfig(config: unknown): config is ShellCommandConfig {
if (typeof config !== 'object' || config === null) return false;
const obj = config as Record<string, unknown>;
// command 必须是非空字符串数组
if (!Array.isArray(obj.command) || obj.command.length === 0) return false;
if (!obj.command.every((c) => typeof c === 'string')) return false;
// environment 如果存在,必须是对象
if (obj.environment !== undefined) {
if (typeof obj.environment !== 'object' || obj.environment === null) return false;
const env = obj.environment as Record<string, unknown>;
if (!Object.values(env).every((v) => typeof v === 'string')) return false;
}
// timeout 如果存在,必须是正数
if (obj.timeout !== undefined) {
if (typeof obj.timeout !== 'number' || obj.timeout <= 0) return false;
}
// cwd 如果存在,必须是字符串
if (obj.cwd !== undefined) {
if (typeof obj.cwd !== 'string') return false;
}
return true;
}
/**
* 验证 FileHookConfig
*/
function validateFileHookConfig(config: unknown): config is FileHookConfig {
if (typeof config !== 'object' || config === null) return false;
const obj = config as Record<string, unknown>;
for (const [pattern, commands] of Object.entries(obj)) {
// pattern 必须是非空字符串
if (typeof pattern !== 'string' || pattern.length === 0) return false;
// commands 必须是 ShellCommandConfig 数组
if (!Array.isArray(commands)) return false;
if (!commands.every(validateShellCommandConfig)) return false;
}
return true;
}
/**
* 验证 HookConfig
*/
function validateHookConfig(config: unknown): config is HookConfig {
if (typeof config !== 'object' || config === null) return false;
const obj = config as Record<string, unknown>;
// file_edited
if (obj.file_edited !== undefined) {
if (!validateFileHookConfig(obj.file_edited)) return false;
}
// file_created
if (obj.file_created !== undefined) {
if (!validateFileHookConfig(obj.file_created)) return false;
}
// file_deleted
if (obj.file_deleted !== undefined) {
if (!validateFileHookConfig(obj.file_deleted)) return false;
}
// session_completed
if (obj.session_completed !== undefined) {
if (!Array.isArray(obj.session_completed)) return false;
if (!obj.session_completed.every(validateShellCommandConfig)) return false;
}
return true;
}
/**
* 加载项目配置
*/
export async function loadProjectConfig(directory: string): Promise<ProjectConfig | null> {
const configPath = await findConfigFile(directory);
if (!configPath) return null;
const config = await parseJsonFile(configPath);
return config;
}
/**
* 加载 Hook 配置
*/
export async function loadHookConfig(directory: string): Promise<HookConfig | null> {
const projectConfig = await loadProjectConfig(directory);
if (!projectConfig?.hooks) return null;
// 验证配置
if (!validateHookConfig(projectConfig.hooks)) {
console.warn('Invalid hook configuration in project config file');
return null;
}
return projectConfig.hooks;
}
/**
* 加载插件列表
*/
export async function loadPluginList(directory: string): Promise<string[]> {
const projectConfig = await loadProjectConfig(directory);
if (!projectConfig?.plugins) return [];
// 验证插件列表
if (!Array.isArray(projectConfig.plugins)) return [];
if (!projectConfig.plugins.every((p) => typeof p === 'string')) return [];
return projectConfig.plugins;
}
/**
* 创建默认配置文件
*/
export async function createDefaultConfig(directory: string): Promise<void> {
const configPath = path.join(directory, '.ai-assistant.json');
const defaultConfig: ProjectConfig = {
hooks: {
file_edited: {
'*.ts': [
{
command: ['npx', 'tsc', '--noEmit'],
timeout: 30000,
},
],
'*.{js,jsx,ts,tsx}': [
{
command: ['npx', 'eslint', '--fix'],
timeout: 30000,
},
],
},
file_created: {},
file_deleted: {},
session_completed: [],
},
plugins: [],
};
await fs.writeFile(configPath, JSON.stringify(defaultConfig, null, 2));
}
/**
* 获取配置文件路径(如果存在)
*/
export async function getConfigFilePath(directory: string): Promise<string | null> {
return findConfigFile(directory);
}
+48
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@@ -0,0 +1,48 @@
/**
* Hook 系统模块
*
* 提供工具执行前后的 hook 功能,支持自定义命令执行
* 参考 open-code 的实现
*/
// Hook 管理器
export {
HookManager,
getHookManager,
initHookManager,
resetHookManager,
} from './manager.js';
// 配置加载
export {
loadProjectConfig,
loadHookConfig,
loadPluginList,
createDefaultConfig,
getConfigFilePath,
type ProjectConfig,
} from './config-loader.js';
// 类型导出
export type {
HookType,
HookConfig,
HookEvent,
HookEventListener,
ShellCommandConfig,
FileHookConfig,
Hooks,
Plugin,
PluginInput,
ToolExecuteBeforeInput,
ToolExecuteBeforeOutput,
ToolExecuteAfterInput,
ToolExecuteAfterOutput,
SessionStartInput,
SessionEndInput,
MessageBeforeInput,
MessageBeforeOutput,
MessageAfterInput,
FileChangeInput,
FileChangeOutput,
} from './types.js';
+495
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@@ -0,0 +1,495 @@
/**
* Hook 管理器
*
* 负责 hook 的注册、触发和管理
*/
import { spawn } from 'child_process';
import { minimatch } from 'minimatch';
import type {
Hooks,
HookType,
HookConfig,
HookEvent,
HookEventListener,
ShellCommandConfig,
FileHookConfig,
ToolExecuteBeforeInput,
ToolExecuteBeforeOutput,
ToolExecuteAfterInput,
ToolExecuteAfterOutput,
SessionStartInput,
SessionEndInput,
MessageBeforeInput,
MessageBeforeOutput,
MessageAfterInput,
FileChangeInput,
FileChangeOutput,
Plugin,
PluginInput,
} from './types.js';
/**
* Hook 管理器
*/
export class HookManager {
/** 已注册的 hooks */
private hooks: Hooks[] = [];
/** 配置型 hooks(从配置文件加载) */
private configHooks: HookConfig | null = null;
/** 事件监听器 */
private eventListeners: HookEventListener[] = [];
/** 当前工作目录 */
private workdir: string;
/** 会话 ID */
private sessionId: string;
constructor(workdir: string, sessionId?: string) {
this.workdir = workdir;
this.sessionId = sessionId || 'default';
}
/**
* 注册插件
*/
async registerPlugin(plugin: Plugin): Promise<void> {
const input: PluginInput = {
workdir: this.workdir,
sessionId: this.sessionId,
};
try {
const hooks = await plugin(input);
this.hooks.push(hooks);
} catch (error) {
console.error('Failed to register plugin:', error);
}
}
/**
* 注册 hooks 对象
*/
registerHooks(hooks: Hooks): void {
this.hooks.push(hooks);
}
/**
* 设置配置型 hooks
*/
setConfigHooks(config: HookConfig): void {
this.configHooks = config;
}
/**
* 添加事件监听器
*/
addEventListener(listener: HookEventListener): void {
this.eventListeners.push(listener);
}
/**
* 移除事件监听器
*/
removeEventListener(listener: HookEventListener): void {
const index = this.eventListeners.indexOf(listener);
if (index !== -1) {
this.eventListeners.splice(index, 1);
}
}
/**
* 发送事件
*/
private emitEvent(type: HookType, data: unknown): void {
const event: HookEvent = {
type,
timestamp: Date.now(),
data,
};
for (const listener of this.eventListeners) {
try {
listener(event);
} catch (error) {
console.error('Event listener error:', error);
}
}
}
/**
* 触发工具执行前 hook
*/
async triggerToolExecuteBefore(
input: ToolExecuteBeforeInput
): Promise<ToolExecuteBeforeOutput> {
const output: ToolExecuteBeforeOutput = {
args: { ...input.args },
};
for (const hook of this.hooks) {
if (hook['tool.execute.before']) {
try {
await hook['tool.execute.before'](input, output);
} catch (error) {
console.error('Hook tool.execute.before error:', error);
}
}
}
this.emitEvent('tool.execute.before', { input, output });
return output;
}
/**
* 触发工具执行后 hook
*/
async triggerToolExecuteAfter(
input: ToolExecuteAfterInput,
result: ToolExecuteAfterOutput['result']
): Promise<ToolExecuteAfterOutput> {
const output: ToolExecuteAfterOutput = {
result: { ...result },
};
for (const hook of this.hooks) {
if (hook['tool.execute.after']) {
try {
await hook['tool.execute.after'](input, output);
} catch (error) {
console.error('Hook tool.execute.after error:', error);
}
}
}
this.emitEvent('tool.execute.after', { input, output });
return output;
}
/**
* 触发会话开始 hook
*/
async triggerSessionStart(input: SessionStartInput): Promise<void> {
for (const hook of this.hooks) {
if (hook['session.start']) {
try {
await hook['session.start'](input);
} catch (error) {
console.error('Hook session.start error:', error);
}
}
}
this.emitEvent('session.start', input);
}
/**
* 触发会话结束 hook
*/
async triggerSessionEnd(input: SessionEndInput): Promise<void> {
for (const hook of this.hooks) {
if (hook['session.end']) {
try {
await hook['session.end'](input);
} catch (error) {
console.error('Hook session.end error:', error);
}
}
}
// 执行配置型 session_completed hooks
if (this.configHooks?.session_completed) {
await this.executeShellCommands(this.configHooks.session_completed);
}
this.emitEvent('session.end', input);
}
/**
* 触发消息前 hook
*/
async triggerMessageBefore(
input: MessageBeforeInput
): Promise<MessageBeforeOutput> {
const output: MessageBeforeOutput = {
content: input.content,
};
for (const hook of this.hooks) {
if (hook['message.before']) {
try {
await hook['message.before'](input, output);
} catch (error) {
console.error('Hook message.before error:', error);
}
}
}
this.emitEvent('message.before', { input, output });
return output;
}
/**
* 触发消息后 hook
*/
async triggerMessageAfter(input: MessageAfterInput): Promise<void> {
for (const hook of this.hooks) {
if (hook['message.after']) {
try {
await hook['message.after'](input);
} catch (error) {
console.error('Hook message.after error:', error);
}
}
}
this.emitEvent('message.after', input);
}
/**
* 触发文件编辑 hook
*/
async triggerFileEdited(input: FileChangeInput): Promise<FileChangeOutput> {
const output: FileChangeOutput = {};
// 执行插件 hooks
for (const hook of this.hooks) {
if (hook['file.edited']) {
try {
await hook['file.edited'](input, output);
} catch (error) {
console.error('Hook file.edited error:', error);
}
}
}
// 执行配置型 hooks
if (this.configHooks?.file_edited) {
const results = await this.executeFileHooks(
input.path,
this.configHooks.file_edited
);
output.commandResults = results;
}
this.emitEvent('file.edited', { input, output });
return output;
}
/**
* 触发文件创建 hook
*/
async triggerFileCreated(input: FileChangeInput): Promise<FileChangeOutput> {
const output: FileChangeOutput = {};
// 执行插件 hooks
for (const hook of this.hooks) {
if (hook['file.created']) {
try {
await hook['file.created'](input, output);
} catch (error) {
console.error('Hook file.created error:', error);
}
}
}
// 执行配置型 hooks
if (this.configHooks?.file_created) {
const results = await this.executeFileHooks(
input.path,
this.configHooks.file_created
);
output.commandResults = results;
}
this.emitEvent('file.created', { input, output });
return output;
}
/**
* 触发文件删除 hook
*/
async triggerFileDeleted(input: FileChangeInput): Promise<FileChangeOutput> {
const output: FileChangeOutput = {};
// 执行插件 hooks
for (const hook of this.hooks) {
if (hook['file.deleted']) {
try {
await hook['file.deleted'](input, output);
} catch (error) {
console.error('Hook file.deleted error:', error);
}
}
}
// 执行配置型 hooks
if (this.configHooks?.file_deleted) {
const results = await this.executeFileHooks(
input.path,
this.configHooks.file_deleted
);
output.commandResults = results;
}
this.emitEvent('file.deleted', { input, output });
return output;
}
/**
* 执行文件 hooks
* 根据文件路径匹配 glob 模式并执行对应命令
*/
private async executeFileHooks(
filePath: string,
config: FileHookConfig
): Promise<FileChangeOutput['commandResults']> {
const results: FileChangeOutput['commandResults'] = [];
for (const [pattern, commands] of Object.entries(config)) {
// 使用 minimatch 进行 glob 匹配
if (minimatch(filePath, pattern, { matchBase: true })) {
const commandResults = await this.executeShellCommands(commands, {
FILE_PATH: filePath,
});
results.push(...commandResults);
}
}
return results;
}
/**
* 执行 shell 命令列表
*/
private async executeShellCommands(
commands: ShellCommandConfig[],
extraEnv?: Record<string, string>
): Promise<Array<{ command: string[]; success: boolean; output?: string; error?: string }>> {
const results: Array<{
command: string[];
success: boolean;
output?: string;
error?: string;
}> = [];
for (const cmdConfig of commands) {
const result = await this.executeShellCommand(cmdConfig, extraEnv);
results.push(result);
}
return results;
}
/**
* 执行单个 shell 命令
*/
private executeShellCommand(
config: ShellCommandConfig,
extraEnv?: Record<string, string>
): Promise<{ command: string[]; success: boolean; output?: string; error?: string }> {
return new Promise((resolve) => {
const [cmd, ...args] = config.command;
const timeout = config.timeout || 30000;
const cwd = config.cwd || this.workdir;
const env = {
...process.env,
...config.environment,
...extraEnv,
};
let stdout = '';
let stderr = '';
const child = spawn(cmd, args, {
cwd,
env,
shell: true,
});
const timer = setTimeout(() => {
child.kill('SIGTERM');
resolve({
command: config.command,
success: false,
error: `Command timed out after ${timeout}ms`,
});
}, timeout);
child.stdout?.on('data', (data) => {
stdout += data.toString();
});
child.stderr?.on('data', (data) => {
stderr += data.toString();
});
child.on('close', (code) => {
clearTimeout(timer);
resolve({
command: config.command,
success: code === 0,
output: stdout.trim() || undefined,
error: stderr.trim() || undefined,
});
});
child.on('error', (error) => {
clearTimeout(timer);
resolve({
command: config.command,
success: false,
error: error.message,
});
});
});
}
/**
* 获取所有已注册的 hooks 数量
*/
getHookCount(): number {
return this.hooks.length;
}
/**
* 清空所有 hooks
*/
clear(): void {
this.hooks = [];
this.configHooks = null;
this.eventListeners = [];
}
}
// 全局 Hook 管理器实例
let globalHookManager: HookManager | null = null;
/**
* 获取全局 Hook 管理器
*/
export function getHookManager(): HookManager | null {
return globalHookManager;
}
/**
* 初始化全局 Hook 管理器
*/
export function initHookManager(workdir: string, sessionId?: string): HookManager {
globalHookManager = new HookManager(workdir, sessionId);
return globalHookManager;
}
/**
* 重置全局 Hook 管理器
*/
export function resetHookManager(): void {
if (globalHookManager) {
globalHookManager.clear();
globalHookManager = null;
}
}
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/**
* Hook 系统类型定义
*
* 参考 open-code 的 hook 实现
*/
import type { Tool, ToolResult } from '../types/index.js';
/**
* Hook 类型枚举
*/
export type HookType =
| 'tool.execute.before' // 工具执行前
| 'tool.execute.after' // 工具执行后
| 'session.start' // 会话开始
| 'session.end' // 会话结束
| 'message.before' // 消息发送前
| 'message.after' // 消息接收后
| 'file.edited' // 文件被编辑后
| 'file.created' // 文件被创建后
| 'file.deleted'; // 文件被删除后
/**
* 工具执行前 Hook 的输入
*/
export interface ToolExecuteBeforeInput {
tool: string;
sessionId: string;
callId: string;
args: Record<string, unknown>;
}
/**
* 工具执行前 Hook 的输出(可修改)
*/
export interface ToolExecuteBeforeOutput {
args: Record<string, unknown>;
/** 设为 true 可阻止工具执行 */
skip?: boolean;
/** 跳过时返回的结果 */
skipResult?: ToolResult;
}
/**
* 工具执行后 Hook 的输入
*/
export interface ToolExecuteAfterInput {
tool: string;
sessionId: string;
callId: string;
args: Record<string, unknown>;
duration: number; // 执行时长(毫秒)
}
/**
* 工具执行后 Hook 的输出(可修改)
*/
export interface ToolExecuteAfterOutput {
result: ToolResult;
}
/**
* 会话开始 Hook 的输入
*/
export interface SessionStartInput {
sessionId: string;
workdir: string;
}
/**
* 会话结束 Hook 的输入
*/
export interface SessionEndInput {
sessionId: string;
messageCount: number;
duration: number; // 会话时长(毫秒)
}
/**
* 消息前 Hook 的输入
*/
export interface MessageBeforeInput {
sessionId: string;
content: string;
}
/**
* 消息前 Hook 的输出(可修改)
*/
export interface MessageBeforeOutput {
content: string;
/** 设为 true 可阻止消息发送 */
skip?: boolean;
}
/**
* 消息后 Hook 的输入
*/
export interface MessageAfterInput {
sessionId: string;
content: string;
toolCalls: number;
}
/**
* 文件变更 Hook 的输入
*/
export interface FileChangeInput {
path: string;
tool: string;
sessionId: string;
}
/**
* 文件变更 Hook 的输出
*/
export interface FileChangeOutput {
/** 执行的命令结果 */
commandResults?: Array<{
command: string[];
success: boolean;
output?: string;
error?: string;
}>;
}
/**
* Shell 命令配置
*/
export interface ShellCommandConfig {
/** 命令数组,第一个元素是命令,后面是参数 */
command: string[];
/** 环境变量 */
environment?: Record<string, string>;
/** 超时时间(毫秒),默认 30000 */
timeout?: number;
/** 工作目录,默认使用当前目录 */
cwd?: string;
}
/**
* 文件 Hook 配置
* 支持 glob 模式匹配文件
*/
export interface FileHookConfig {
/** glob 模式 -> 命令配置列表 */
[pattern: string]: ShellCommandConfig[];
}
/**
* Hook 配置
*/
export interface HookConfig {
/** 文件编辑后执行的 hook */
file_edited?: FileHookConfig;
/** 文件创建后执行的 hook */
file_created?: FileHookConfig;
/** 文件删除后执行的 hook */
file_deleted?: FileHookConfig;
/** 会话完成后执行的命令 */
session_completed?: ShellCommandConfig[];
}
/**
* Hook 函数类型
*/
export type HookFunction<Input, Output> = (
input: Input,
output: Output
) => Promise<void>;
/**
* Hook 定义接口
*/
export interface Hooks {
'tool.execute.before'?: HookFunction<ToolExecuteBeforeInput, ToolExecuteBeforeOutput>;
'tool.execute.after'?: HookFunction<ToolExecuteAfterInput, ToolExecuteAfterOutput>;
'session.start'?: (input: SessionStartInput) => Promise<void>;
'session.end'?: (input: SessionEndInput) => Promise<void>;
'message.before'?: HookFunction<MessageBeforeInput, MessageBeforeOutput>;
'message.after'?: (input: MessageAfterInput) => Promise<void>;
'file.edited'?: HookFunction<FileChangeInput, FileChangeOutput>;
'file.created'?: HookFunction<FileChangeInput, FileChangeOutput>;
'file.deleted'?: HookFunction<FileChangeInput, FileChangeOutput>;
}
/**
* 插件输入
*/
export interface PluginInput {
/** 当前工作目录 */
workdir: string;
/** 会话 ID */
sessionId?: string;
}
/**
* 插件定义
* 一个插件是一个函数,接收 PluginInput 返回 Hooks
*/
export type Plugin = (input: PluginInput) => Promise<Hooks>;
/**
* Hook 事件
*/
export interface HookEvent {
type: HookType;
timestamp: number;
data: unknown;
}
/**
* Hook 事件监听器
*/
export type HookEventListener = (event: HookEvent) => void;
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/**
* Hook 系统测试
*/
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import * as path from 'path';
import * as fs from 'fs/promises';
import * as os from 'os';
import {
HookManager,
initHookManager,
getHookManager,
resetHookManager,
loadHookConfig,
loadProjectConfig,
type Hooks,
type HookConfig,
} from '../../src/hooks/index.js';
describe('HookManager', () => {
let tempDir: string;
let manager: HookManager;
beforeEach(async () => {
tempDir = path.join(os.tmpdir(), `hooks-test-${Date.now()}`);
await fs.mkdir(tempDir, { recursive: true });
manager = new HookManager(tempDir, 'test-session');
});
afterEach(async () => {
resetHookManager();
try {
await fs.rm(tempDir, { recursive: true, force: true });
} catch {
// ignore cleanup errors
}
});
describe('Plugin Registration', () => {
it('should register hooks from plugin', async () => {
const hooks: Hooks = {
'tool.execute.before': async (input, output) => {
output.args = { ...output.args, injected: true };
},
};
manager.registerHooks(hooks);
expect(manager.getHookCount()).toBe(1);
});
it('should register multiple plugins', async () => {
const hooks1: Hooks = {
'tool.execute.before': async () => {},
};
const hooks2: Hooks = {
'tool.execute.after': async () => {},
};
manager.registerHooks(hooks1);
manager.registerHooks(hooks2);
expect(manager.getHookCount()).toBe(2);
});
});
describe('Tool Execute Before Hook', () => {
it('should trigger tool.execute.before hook', async () => {
let triggered = false;
const hooks: Hooks = {
'tool.execute.before': async (input, output) => {
triggered = true;
expect(input.tool).toBe('test_tool');
expect(input.sessionId).toBe('test-session');
expect(input.args).toEqual({ foo: 'bar' });
},
};
manager.registerHooks(hooks);
await manager.triggerToolExecuteBefore({
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: { foo: 'bar' },
});
expect(triggered).toBe(true);
});
it('should allow hook to modify args', async () => {
const hooks: Hooks = {
'tool.execute.before': async (input, output) => {
output.args = { ...output.args, modified: true };
},
};
manager.registerHooks(hooks);
const result = await manager.triggerToolExecuteBefore({
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: { original: true },
});
expect(result.args).toEqual({ original: true, modified: true });
});
it('should allow hook to skip execution', async () => {
const hooks: Hooks = {
'tool.execute.before': async (input, output) => {
output.skip = true;
output.skipResult = {
success: false,
output: '',
error: 'Blocked by hook',
};
},
};
manager.registerHooks(hooks);
const result = await manager.triggerToolExecuteBefore({
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: {},
});
expect(result.skip).toBe(true);
expect(result.skipResult?.error).toBe('Blocked by hook');
});
});
describe('Tool Execute After Hook', () => {
it('should trigger tool.execute.after hook', async () => {
let triggered = false;
const hooks: Hooks = {
'tool.execute.after': async (input, output) => {
triggered = true;
expect(input.tool).toBe('test_tool');
expect(input.duration).toBeGreaterThanOrEqual(0);
},
};
manager.registerHooks(hooks);
await manager.triggerToolExecuteAfter(
{
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: {},
duration: 100,
},
{ success: true, output: 'test output' }
);
expect(triggered).toBe(true);
});
it('should allow hook to modify result', async () => {
const hooks: Hooks = {
'tool.execute.after': async (input, output) => {
output.result = {
...output.result,
output: output.result.output + ' (modified)',
};
},
};
manager.registerHooks(hooks);
const result = await manager.triggerToolExecuteAfter(
{
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: {},
duration: 100,
},
{ success: true, output: 'original' }
);
expect(result.result.output).toBe('original (modified)');
});
});
describe('Session Hooks', () => {
it('should trigger session.start hook', async () => {
let triggered = false;
const hooks: Hooks = {
'session.start': async (input) => {
triggered = true;
expect(input.sessionId).toBe('session-123');
expect(input.workdir).toBe('/test/dir');
},
};
manager.registerHooks(hooks);
await manager.triggerSessionStart({
sessionId: 'session-123',
workdir: '/test/dir',
});
expect(triggered).toBe(true);
});
it('should trigger session.end hook', async () => {
let triggered = false;
const hooks: Hooks = {
'session.end': async (input) => {
triggered = true;
expect(input.messageCount).toBe(10);
expect(input.duration).toBe(5000);
},
};
manager.registerHooks(hooks);
await manager.triggerSessionEnd({
sessionId: 'session-123',
messageCount: 10,
duration: 5000,
});
expect(triggered).toBe(true);
});
});
describe('Message Hooks', () => {
it('should trigger message.before hook', async () => {
const hooks: Hooks = {
'message.before': async (input, output) => {
output.content = input.content.toUpperCase();
},
};
manager.registerHooks(hooks);
const result = await manager.triggerMessageBefore({
sessionId: 'test-session',
content: 'hello world',
});
expect(result.content).toBe('HELLO WORLD');
});
it('should allow message.before to skip', async () => {
const hooks: Hooks = {
'message.before': async (input, output) => {
if (input.content.includes('forbidden')) {
output.skip = true;
}
},
};
manager.registerHooks(hooks);
const result = await manager.triggerMessageBefore({
sessionId: 'test-session',
content: 'this is forbidden',
});
expect(result.skip).toBe(true);
});
it('should trigger message.after hook', async () => {
let triggered = false;
const hooks: Hooks = {
'message.after': async (input) => {
triggered = true;
expect(input.toolCalls).toBe(3);
},
};
manager.registerHooks(hooks);
await manager.triggerMessageAfter({
sessionId: 'test-session',
content: 'response',
toolCalls: 3,
});
expect(triggered).toBe(true);
});
});
describe('File Change Hooks', () => {
it('should trigger file.edited hook', async () => {
let triggered = false;
const hooks: Hooks = {
'file.edited': async (input, output) => {
triggered = true;
expect(input.path).toBe('/test/file.ts');
expect(input.tool).toBe('edit_file');
},
};
manager.registerHooks(hooks);
await manager.triggerFileEdited({
path: '/test/file.ts',
tool: 'edit_file',
sessionId: 'test-session',
});
expect(triggered).toBe(true);
});
it('should trigger file.created hook', async () => {
let triggered = false;
const hooks: Hooks = {
'file.created': async (input, output) => {
triggered = true;
expect(input.path).toBe('/test/new-file.ts');
},
};
manager.registerHooks(hooks);
await manager.triggerFileCreated({
path: '/test/new-file.ts',
tool: 'write_file',
sessionId: 'test-session',
});
expect(triggered).toBe(true);
});
it('should trigger file.deleted hook', async () => {
let triggered = false;
const hooks: Hooks = {
'file.deleted': async (input, output) => {
triggered = true;
expect(input.path).toBe('/test/old-file.ts');
},
};
manager.registerHooks(hooks);
await manager.triggerFileDeleted({
path: '/test/old-file.ts',
tool: 'delete_file',
sessionId: 'test-session',
});
expect(triggered).toBe(true);
});
});
describe('Config Hooks', () => {
it('should execute file hooks matching glob pattern', async () => {
const config: HookConfig = {
file_edited: {
'*.ts': [
{
command: ['echo', 'TypeScript file edited'],
timeout: 5000,
},
],
},
};
manager.setConfigHooks(config);
const result = await manager.triggerFileEdited({
path: 'test.ts',
tool: 'edit_file',
sessionId: 'test-session',
});
expect(result.commandResults).toBeDefined();
expect(result.commandResults?.length).toBe(1);
expect(result.commandResults?.[0].success).toBe(true);
expect(result.commandResults?.[0].output).toContain('TypeScript file edited');
});
it('should not execute hooks for non-matching patterns', async () => {
const config: HookConfig = {
file_edited: {
'*.ts': [
{
command: ['echo', 'TypeScript'],
},
],
},
};
manager.setConfigHooks(config);
const result = await manager.triggerFileEdited({
path: 'test.js',
tool: 'edit_file',
sessionId: 'test-session',
});
expect(result.commandResults).toBeDefined();
expect(result.commandResults?.length).toBe(0);
});
});
describe('Event Listeners', () => {
it('should emit events to listeners', async () => {
const events: any[] = [];
manager.addEventListener((event) => {
events.push(event);
});
await manager.triggerToolExecuteBefore({
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: {},
});
expect(events.length).toBe(1);
expect(events[0].type).toBe('tool.execute.before');
expect(events[0].timestamp).toBeGreaterThan(0);
});
it('should remove event listener', async () => {
const events: any[] = [];
const listener = (event: any) => events.push(event);
manager.addEventListener(listener);
manager.removeEventListener(listener);
await manager.triggerToolExecuteBefore({
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: {},
});
expect(events.length).toBe(0);
});
});
describe('Error Handling', () => {
it('should continue execution when hook throws error', async () => {
const hooks: Hooks = {
'tool.execute.before': async () => {
throw new Error('Hook error');
},
};
manager.registerHooks(hooks);
// Should not throw
const result = await manager.triggerToolExecuteBefore({
tool: 'test_tool',
sessionId: 'test-session',
callId: 'call-1',
args: { foo: 'bar' },
});
// Args should remain unchanged
expect(result.args).toEqual({ foo: 'bar' });
});
});
});
describe('Global Hook Manager', () => {
afterEach(() => {
resetHookManager();
});
it('should initialize global hook manager', () => {
const manager = initHookManager('/test/dir', 'session-1');
expect(manager).toBeInstanceOf(HookManager);
expect(getHookManager()).toBe(manager);
});
it('should return null before initialization', () => {
expect(getHookManager()).toBeNull();
});
it('should reset global hook manager', () => {
initHookManager('/test/dir');
resetHookManager();
expect(getHookManager()).toBeNull();
});
});
describe('Config Loader', () => {
let tempDir: string;
beforeEach(async () => {
tempDir = path.join(os.tmpdir(), `config-test-${Date.now()}`);
await fs.mkdir(tempDir, { recursive: true });
});
afterEach(async () => {
try {
await fs.rm(tempDir, { recursive: true, force: true });
} catch {
// ignore cleanup errors
}
});
it('should load project config from .ai-assistant.json', async () => {
const config = {
hooks: {
file_edited: {
'*.ts': [{ command: ['echo', 'test'] }],
},
},
plugins: ['plugin-a', 'plugin-b'],
};
await fs.writeFile(
path.join(tempDir, '.ai-assistant.json'),
JSON.stringify(config)
);
const loaded = await loadProjectConfig(tempDir);
expect(loaded).not.toBeNull();
expect(loaded?.hooks?.file_edited).toBeDefined();
expect(loaded?.plugins).toEqual(['plugin-a', 'plugin-b']);
});
it('should load hook config', async () => {
const config = {
hooks: {
file_edited: {
'*.ts': [{ command: ['npm', 'run', 'lint'] }],
},
session_completed: [{ command: ['echo', 'done'] }],
},
};
await fs.writeFile(
path.join(tempDir, '.ai-assistant.json'),
JSON.stringify(config)
);
const hookConfig = await loadHookConfig(tempDir);
expect(hookConfig).not.toBeNull();
expect(hookConfig?.file_edited?.['*.ts']).toHaveLength(1);
expect(hookConfig?.session_completed).toHaveLength(1);
});
it('should return null for missing config', async () => {
const config = await loadProjectConfig(tempDir);
expect(config).toBeNull();
});
it('should support JSONC format with comments', async () => {
const configContent = `{
// This is a comment
"hooks": {
/* Multi-line
comment */
"file_edited": {
"*.ts": [{ "command": ["echo", "test"] }]
}
}
}`;
await fs.writeFile(
path.join(tempDir, '.ai-assistant.jsonc'),
configContent
);
const loaded = await loadProjectConfig(tempDir);
expect(loaded).not.toBeNull();
expect(loaded?.hooks?.file_edited?.['*.ts']).toBeDefined();
});
});