feat: 重构为 Monorepo 架构并实现 HTTP Server

架构变更: - 采用 pnpm workspaces 实现 Monorepo 结构 - 将现有代码迁移到 packages/core - 新增 packages/server HTTP 服务层 Server 功能: - REST API: 会话管理、工具管理、配置管理 - WebSocket: 实时双向通信支持 - SSE: 服务端事件推送 - Hono + Bun 作为运行时 API 端点: - GET/POST /api/sessions - 会话 CRUD - GET/POST /api/sessions/:id/messages - 消息管理 - GET /api/sessions/:id/events - SSE 事件流 - WS /api/ws/:sessionId - WebSocket 连接 - GET/POST /api/tools - 工具管理 - GET/PUT /api/config - 配置管理
2025-12-12 10:42:20 +08:00
parent 59dbed926e
commit 5e32375f0e
301 changed files with 3281 additions and 43 deletions
@@ -0,0 +1,194 @@
+/**
+ * Undo 管理器
+ *
+ * 参考 aider 的 undo 实现
+ * 仅支持撤销 AI 生成的提交，且需要通过多项安全检查
+ */
+
+import type { GitRepo } from './repo.js';
+import type { UndoConfig, UndoEntry, UndoResult, CommitInfo } from './types.js';
+
+export class UndoManager {
+  private repo: GitRepo;
+  private config: UndoConfig;
+
+  /** Undo 历史 */
+  private history: UndoEntry[] = [];
+
+  constructor(repo: GitRepo, config: UndoConfig) {
+    this.repo = repo;
+    this.config = config;
+  }
+
+  /**
+   * 记录提交到 undo 历史
+   */
+  recordCommit(commitHash: string, shortHash: string, message: string, files: string[]): void {
+    const entry: UndoEntry = {
+      id: `undo-${Date.now()}`,
+      timestamp: Date.now(),
+      commitHash: shortHash,
+      message,
+      files,
+      canUndo: true,
+    };
+
+    this.history.push(entry);
+
+    // 限制历史记录数量
+    if (this.history.length > this.config.maxHistory) {
+      this.history = this.history.slice(-this.config.maxHistory);
+    }
+  }
+
+  /**
+   * 执行 undo 操作
+   *
+   * 安全检查清单（参考 aider）：
+   * 1. 提交是否由 AI 生成
+   * 2. 提交是否已推送到远程
+   * 3. 是否为合并提交
+   * 4. 文件是否有未提交的更改
+   */
+  async undo(): Promise<UndoResult> {
+    // 1. 检查是否有可撤销的提交
+    if (this.history.length === 0) {
+      return {
+        success: false,
+        message: 'Nothing to undo. No AI commits in this session.',
+      };
+    }
+
+    // 2. 获取最后一条记录
+    const lastEntry = this.history[this.history.length - 1];
+
+    // 3. 获取 HEAD 提交
+    const headShortHash = await this.repo.getHeadShortHash();
+    if (!headShortHash) {
+      return {
+        success: false,
+        message: 'Unable to get HEAD commit.',
+      };
+    }
+
+    // 4. 验证最后的提交是否与记录匹配
+    if (headShortHash !== lastEntry.commitHash) {
+      return {
+        success: false,
+        message: `The last commit (${headShortHash}) does not match the recorded AI commit (${lastEntry.commitHash}). The repository may have changed since the AI edit.`,
+      };
+    }
+
+    // 5. 验证是否为 AI 生成的提交
+    if (!this.repo.isAICommit(headShortHash)) {
+      return {
+        success: false,
+        message: `The commit ${headShortHash} was not made by AI in this session.`,
+      };
+    }
+
+    // 6. 检查提交是否已推送到远程
+    const headHash = await this.repo.getHeadCommit();
+    if (headHash) {
+      const isPushed = await this.repo.isCommitPushed(headHash);
+      if (isPushed) {
+        return {
+          success: false,
+          message: 'The commit has already been pushed to remote. Undo is not safe.',
+        };
+      }
+    }
+
+    // 7. 检查文件是否有未提交的更改
+    for (const file of lastEntry.files) {
+      const isDirty = await this.repo.isDirty(file);
+      if (isDirty) {
+        return {
+          success: false,
+          message: `The file ${file} has uncommitted changes. Please commit or stash them first.`,
+        };
+      }
+    }
+
+    // 8. 执行撤销操作
+    try {
+      // 恢复文件到上一个版本
+      const restoredFiles: string[] = [];
+      for (const file of lastEntry.files) {
+        try {
+          await this.repo.checkoutFile('HEAD~1', file);
+          restoredFiles.push(file);
+        } catch {
+          // 文件可能在前一个提交中不存在（新建的文件）
+          // 这种情况下跳过
+        }
+      }
+
+      // 软重置 HEAD
+      await this.repo.resetSoft('HEAD~1');
+
+      // 从历史中移除
+      this.history.pop();
+
+      // 从 AI 提交记录中移除
+      this.repo.removeAICommitHash(lastEntry.commitHash);
+
+      return {
+        success: true,
+        message: `Undone: ${lastEntry.commitHash} - ${lastEntry.message}`,
+        commitHash: lastEntry.commitHash,
+        restoredFiles,
+      };
+    } catch (error) {
+      return {
+        success: false,
+        message: `Undo failed: ${error instanceof Error ? error.message : String(error)}`,
+      };
+    }
+  }
+
+  /**
+   * 预览将要撤销的内容
+   */
+  getUndoPreview(): UndoEntry | null {
+    if (this.history.length === 0) {
+      return null;
+    }
+    return this.history[this.history.length - 1];
+  }
+
+  /**
+   * 获取 undo 历史
+   */
+  getHistory(): UndoEntry[] {
+    return [...this.history];
+  }
+
+  /**
+   * 清除历史
+   */
+  clearHistory(): void {
+    this.history = [];
+  }
+
+  /**
+   * 检查是否可以 undo
+   */
+  async canUndo(): Promise<{ canUndo: boolean; reason?: string }> {
+    if (this.history.length === 0) {
+      return { canUndo: false, reason: 'No AI commits to undo' };
+    }
+
+    const lastEntry = this.history[this.history.length - 1];
+    const headShortHash = await this.repo.getHeadShortHash();
+
+    if (headShortHash !== lastEntry.commitHash) {
+      return {
+        canUndo: false,
+        reason: 'Repository has changed since last AI commit',
+      };
+    }
+
+    return { canUndo: true };
+  }
+}