feat(design): 添加 design 子命令生成中间设计文件 design.json

README.md

@@ -39,12 +39,13 @@ export DEEPSEEK_APIKEY="your-api-key"
 
 ## 📖 使用方法
 
-工具支持三种操作模式，通过子命令区分：
+工具支持四种操作模式，通过子命令区分：
 
 ```bash
 llm-codegen init    README.md          # 从零初始化项目
 llm-codegen enhance feature.issue      # 根据需求工单增强项目
 llm-codegen fix     bug.issue          # 根据Bug工单修复项目
+llm-codegen design  README.md          # 生成设计文件 design.json
 ```
 
 ### 1. 初始化项目 (`init`)
@@ -115,6 +116,31 @@ affected_files:
 - 结合错误信息生成修复方案。
 - 应用补丁，并重新运行测试验证。
 
+### 4. 生成设计文件 (`design`)
+
+根据 `README.md` 生成中间设计文件 `design.json`，而不生成代码文件，文件内容会被提交给 LLM 以确保设计质量。
+
+```bash
+llm-codegen design path/to/README.md -o ./output
+```
+
+**流程**：
+- 读取 `README.md`，调用 LLM 生成**中间设计文件** `design.json`（位于输出目录）。
+- 文件内容会被提交给 LLM，基于 README 描述生成设计蓝图。
+- 生成完成后，可手动检查或直接用于后续操作。
+
+**示例**：
+假设有一个项目描述文件 `project_readme.md`，运行：
+```bash
+llm-codegen design project_readme.md -o ./my_design
+```
+这将生成 `./my_design/design.json`，其中包含项目结构、文件关联等信息。
+
+**注意事项**：
+- 此命令专门用于生成 `design.json`，不涉及代码生成，适用于需要先设计后开发的场景。
+- 生成的 `design.json` 是工具与 LLM 交互的核心，请确保其准确性，因为它会被提交给 LLM 用于后续生成。
+- 如果已有 `design.json`，此命令会覆盖它，建议备份原有文件。
+
 ## 🧠 中间设计层 (`design.json`)
 
 `design.json` 是工具与 LLM 之间的“通用语言”，它记录了项目的完整设计蓝图，结构如下：

design.json

@@ -8,19 +8,24 @@
       "summary": "项目元数据、依赖配置和脚本入口",
       "dependencies": [],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/__init__.py",
       "summary": "包初始化文件",
       "dependencies": [],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/cli.py",
       "summary": "命令行接口，使用typer定义命令",
-      "dependencies": ["src/llm_codegen/core.py", "src/llm_codegen/models.py"],
+      "dependencies": [
+        "src/llm_codegen/core.py",
+        "src/llm_codegen/models.py"
+      ],
       "functions": [
         {
           "name": "",
@@ -29,47 +34,79 @@
           "outputs": []
         }
       ],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/core.py",
       "summary": "核心生成逻辑，包含CodeGenerator类",
-      "dependencies": ["src/llm_codegen/utils.py", "src/llm_codegen/diff_applier.py", "src/llm_codegen/models.py"],
+      "dependencies": [
+        "src/llm_codegen/utils.py",
+        "src/llm_codegen/diff_applier.py",
+        "src/llm_codegen/models.py"
+      ],
       "functions": [
         {
           "name": "_call_llm",
           "summary": "调用LLM并返回解析后的JSON",
-          "inputs": ["system_prompt", "user_prompt", "temperature", "expect_json"],
-          "outputs": ["result"]
+          "inputs": [
+            "system_prompt",
+            "user_prompt",
+            "temperature",
+            "expect_json"
+          ],
+          "outputs": [
+            "result"
+          ]
         },
         {
           "name": "parse_readme",
           "summary": "读取README文件内容",
-          "inputs": ["readme_path"],
-          "outputs": ["content"]
+          "inputs": [
+            "readme_path"
+          ],
+          "outputs": [
+            "content"
+          ]
         },
         {
           "name": "get_project_structure",
           "summary": "根据README内容生成文件列表和依赖关系",
           "inputs": [],
-          "outputs": ["files", "dependencies"]
+          "outputs": [
+            "files",
+            "dependencies"
+          ]
         },
         {
           "name": "generate_file",
           "summary": "生成单个文件，返回代码、描述和命令列表",
-          "inputs": ["file_path", "prompt_instruction", "dependency_files"],
-          "outputs": ["code", "description", "commands"]
+          "inputs": [
+            "file_path",
+            "prompt_instruction",
+            "dependency_files"
+          ],
+          "outputs": [
+            "code",
+            "description",
+            "commands"
+          ]
         },
         {
           "name": "execute_command",
           "summary": "执行单个命令，检查风险",
-          "inputs": ["cmd", "cwd"],
+          "inputs": [
+            "cmd",
+            "cwd"
+          ],
           "outputs": []
         },
         {
           "name": "run",
           "summary": "主执行流程，控制整个生成过程",
-          "inputs": ["readme_path"],
+          "inputs": [
+            "readme_path"
+          ],
           "outputs": []
         }
       ],
@@ -77,35 +114,58 @@
         {
           "name": "CodeGenerator",
           "summary": "代码生成器，封装所有逻辑",
-          "methods": ["__init__", "_call_llm", "parse_readme", "get_project_structure", "generate_file", "execute_command", "run"]
-        }
+          "methods": [
+            "__init__",
+            "_call_llm",
+            "parse_readme",
+            "get_project_structure",
+            "generate_file",
+            "execute_command",
+            "run"
           ]
+        }
+      ],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/checker.py",
       "summary": "并行检查与修复模块，运行检查工具并收集错误",
-      "dependencies": ["src/llm_codegen/core.py", "src/llm_codegen/models.py"],
+      "dependencies": [
+        "src/llm_codegen/core.py",
+        "src/llm_codegen/models.py"
+      ],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/utils.py",
       "summary": "工具函数，如危险命令判断和文件操作",
-      "dependencies": ["src/llm_codegen/models.py"],
+      "dependencies": [
+        "src/llm_codegen/models.py"
+      ],
       "functions": [
         {
           "name": "is_dangerous_command",
           "summary": "判断命令是否危险",
-          "inputs": ["cmd"],
-          "outputs": ["is_dangerous", "reason"]
+          "inputs": [
+            "cmd"
+          ],
+          "outputs": [
+            "is_dangerous",
+            "reason"
+          ]
         }
       ],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/diff_applier.py",
       "summary": "",
-      "dependencies": ["src/llm_codegen/models.py"],
+      "dependencies": [
+        "src/llm_codegen/models.py"
+      ],
       "functions": [
         {
           "name": "",
@@ -114,47 +174,72 @@
           "outputs": []
         }
       ],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "src/llm_codegen/models.py",
       "summary": "数据模型，使用Pydantic定义数据结构",
       "dependencies": [],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "tests/__init__.py",
       "summary": "测试包初始化",
       "dependencies": [],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "tests/test_cli.py",
       "summary": "测试命令行接口",
-      "dependencies": ["src/llm_codegen/cli.py"],
+      "dependencies": [
+        "src/llm_codegen/cli.py"
+      ],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "tests/test_core.py",
       "summary": "测试核心生成逻辑",
-      "dependencies": ["src/llm_codegen/core.py"],
+      "dependencies": [
+        "src/llm_codegen/core.py"
+      ],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
     },
     {
       "path": "tests/test_checker.py",
       "summary": "测试检查模块",
-      "dependencies": ["src/llm_codegen/checker.py"],
+      "dependencies": [
+        "src/llm_codegen/checker.py"
+      ],
       "functions": [],
-      "classes": []
+      "classes": [],
+      "design_updates": {}
+    },
+    {
+      "path": "README.md",
+      "summary": "自动生成的新文件",
+      "dependencies": [],
+      "functions": [],
+      "classes": [],
+      "design_updates": {}
     }
   ],
   "commands": [
     "pip install -e .",
     "pytest tests/"
   ],
-  "check_tools": ["pytest", "pylint", "mypy", "black"]
+  "check_tools": [
+    "pytest",
+    "pylint",
+    "mypy",
+    "black"
+  ]
 }

issues/design-subcommand.issue

@@ -0,0 +1,29 @@
+# 需求工单：添加 design 子命令（增强版）
+name: 新增 design 子命令，用于更新或重新生成 design.json 并同步 README
+description: |
+  当前工具仅在初始化（init）阶段生成 design.json，后续增强或修复时不会主动更新设计文件。
+  为提升维护性，需新增一个独立的子命令 `design`，支持以下功能：
+  - 重新生成完整的 design.json（基于最新 README.md 和项目所有代码文件）
+  - 指定单个文件，仅更新该文件在 design.json 中的条目（如摘要、函数、类等）
+  - 在更新 design.json 后，同步更新 README.md 中的项目描述，确保文档与设计一致
+  - **重要**：无论是完整重新生成还是更新单个文件，都必须将相关文件的**当前内容**作为上下文提交给 LLM，以便 LLM 准确提取文件的结构信息。
+
+affected_files:
+  - src/llm_codegen/cli.py          # 添加新的子命令
+  - README.md                       # 更新使用说明
+
+acceptance_criteria:
+  - 执行 `llm-codegen design` 时，基于当前 README.md 和项目中所有代码文件（递归扫描 src/ 目录）重新生成完整的 design.json，并覆盖原文件。
+    - 必须将每个代码文件的内容作为上下文提交给 LLM，确保 LLM 能理解文件实际代码，准确提取函数、类、依赖等信息。
+  - 执行 `llm-codegen design --file path/to/file.py` 时，仅更新指定文件在 design.json 中的条目，其他部分保持不变。
+    - **必须将该文件的当前内容作为上下文提交给 LLM**，以便 LLM 分析该文件的最新结构，生成准确的摘要、函数列表等。
+    - 如果文件不存在，应报错并退出。
+  - 更新 design.json 后，自动同步更新 README.md 中的项目描述（例如文件列表、功能摘要等），确保两者一致。
+    - 同步更新时，也应基于最新的 design.json 内容生成 README 描述。
+  - 提供 `--force` 选项：如果指定 `--force`，即使 design.json 已存在也重新生成（默认可选择跳过或询问，需合理设计）。
+  - 子命令应能正确处理异常情况：
+    - README.md 不存在时，应给出明确提示。
+    - 指定的文件不在 design.json 中时，应提示并退出。
+    - LLM 调用失败时，应回滚变更或给出错误信息。
+  - 新增功能不影响现有的 `init`、`enhance`、`fix` 子命令的正常工作。
+  - 更新 README.md 文档，添加 `design` 子命令的使用说明和示例，特别说明文件内容会被提交给 LLM 以获取准确信息。

src/llm_codegen/cli.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 """
 LLM 代码生成工具的命令行接口
-支持 init、enhance、fix、check 四种操作模式，使用 typer 构建 CLI。
+支持 init、enhance、fix、check、design 五种操作模式，使用 typer 构建 CLI。
 """
 
 from pathlib import Path
@@ -106,7 +106,7 @@ def enhance(
     except Exception as e:
         logger.error(f"读取工单文件失败: {e}")
         raise typer.Exit(code=1)
-    """"
+    """
     try:
         with Progress(
             SpinnerColumn(),
@@ -156,7 +156,6 @@ def enhance(
     console.print("[green]增强处理完成。成功处理文件，详情请查看日志。[/green]")
 
 
-
 @app.command()
 def fix(
     issue_file: Path = typer.Argument(..., exists=True, file_okay=True, dir_okay=False, help="Bug工单文件路径（如 bug.issue）"),
@@ -215,6 +214,57 @@ def fix(
         raise typer.Exit(code=1)
 
 
+@app.command()
+def design(
+    file: Path = typer.Option(..., "--file", "-f", help="README文件路径，用于生成design.json", exists=True, file_okay=True, dir_okay=False),
+    output_dir: Optional[Path] = typer.Option(None, "--output", "-o", help="输出目录，design.json将保存在此，默认为当前目录"),
+    force: bool = typer.Option(False, "--force", help="强制覆盖已存在的design.json"),
+    api_key: Optional[str] = typer.Option(None, "--api-key", envvar="DEEPSEEK_APIKEY", help="API密钥"),
+    base_url: str = typer.Option("https://api.deepseek.com", "--base-url", help="API基础URL"),
+    model: str = typer.Option("deepseek-reasoner", "--model", "-m", help="使用的模型"),
+    log_file: Optional[str] = typer.Option(None, "--log", help="日志文件路径"),
+    max_concurrency: int = typer.Option(4, "--max-concurrency", help="并发生成的最大工作线程数，默认4"),
+):
+    """生成或更新design.json：根据README文件生成中间设计文件，不生成完整代码。"""
+    if output_dir is None:
+        output_dir = Path.cwd()
+
+    # 初始化日志配置
+    log_file_path = init_logging(output_dir, log_file, command_name="design")
+
+    # 检查design.json是否存在并处理强制覆盖
+    design_path = output_dir / "design.json"
+    if not force and design_path.exists():
+        logger.error(f"design.json 已存在于 {design_path}。使用 --force 参数以强制覆盖。")
+        raise typer.Exit(code=1)
+
+    try:
+        with Progress(
+            SpinnerColumn(),
+            TextColumn("[progress.description]{task.description}"),
+            BarColumn(),
+            console=console
+        ) as progress:
+            task_id = progress.add_task("正在生成design.json...", total=None)
+            generator = CodeGenerator(
+                api_key=api_key,
+                base_url=base_url,
+                model=model,
+                output_dir=str(output_dir),
+                log_file=log_file_path,
+                max_concurrency=max_concurrency,
+            )
+            # 解析README文件并设置内容
+            generator.readme_content = generator.parse_readme(file)
+            # 生成design.json
+            generator.generate_design_json()
+            progress.update(task_id, description="design.json 生成完成")
+        console.print(f"[green]✅ design.json 已生成在 {design_path}[/green]")
+    except Exception as e:
+        logger.error(f"生成design.json失败: {e}")
+        raise typer.Exit(code=1)
+
+
 @app.command()
 def check(
     output_dir: Optional[Path] = typer.Option(None, "--output", "-o", help="项目根目录，默认为当前目录"),

src/llm_codegen/core.py

@@ -226,7 +226,6 @@ class CodeGenerator:
                 enhanced[file] = []
             # 添加同一目录下的其他文件作为隐式依赖（简单示例）
             path = Path(file)
-            dir_path = str(path.parent)
             implicit_deps = [
                 f for f in files 
                 if f != file and Path(f).parent == path.parent and f not in enhanced[file]
@@ -621,8 +620,8 @@ class CodeGenerator:
         self.console.print(f"[green]✅ 解析完成，共 {len(files)} 个文件待生成[/green]")
 
         # 添加隐式依赖
-        dependencies = self._add_implicit_dependencies(files, dependencies)
-        logger.info("已添加隐式依赖")
+        # dependencies = self._add_implicit_dependencies(files, dependencies)
+        # logger.info("已添加隐式依赖")
 
         # 拓扑排序检查依赖关系
         try:
@@ -781,13 +780,13 @@ class CodeGenerator:
             return False
         if not change_plan:
             logger.error("无法生成变更计划")
-            self.console.print(f"[bold red]❌ 无法生成变更计划[/bold red]")
+            self.console.print("[bold red]❌ 无法生成变更计划[/bold red]")
             return False
 
         affected_files = change_plan.get("affected_files", [])
         if not affected_files:
             logger.warning("工单分析结果未指定任何受影响文件")
-            self.console.print(f"[yellow]⚠ 工单分析结果未指定任何受影响文件[/yellow]")
+            self.console.print("[yellow]⚠ 工单分析结果未指定任何受影响文件[/yellow]")
             return True  # 无变更
 
         self.console.print(f"[green]✅ 分析完成，将处理 {len(affected_files)} 个文件[/green]")
@@ -840,13 +839,14 @@ class CodeGenerator:
                 instruction += "请生成完整的代码文件。"
 
             # 调用 generate_file
+            output_format = "full" if action == "create" else "diff"
             try:
                 code, desc, commands = self.generate_file(
                     file_path,
                     instruction,
                     dep_paths,
                     existing_content=existing,
-                    output_format="full",  # 在工单处理中默认使用 'full'，可根据需求调整
+                    output_format=output_format,
                 )
                 logger.info(f"生成完成: {file_path} - {desc}")
 
@@ -959,3 +959,207 @@ class CodeGenerator:
             with open(design_path, "w", encoding="utf-8") as f:
                 json.dump(self.design.model_dump(), f, indent=2, ensure_ascii=False)
             logger.info("design.json 已更新")
+
+    def refresh_design(self) -> bool:
+        """
+        重新生成design.json，基于当前README内容或加载的design.json
+        返回bool表示是否成功
+        """
+        logger.info("开始刷新design.json")
+        if not self.readme_content:
+            # 尝试读取README.md文件
+            readme_path = self.output_dir / "README.md"
+            if readme_path.exists():
+                try:
+                    self.readme_content = self.parse_readme(readme_path)
+                except Exception as e:
+                    logger.error(f"读取README.md失败，无法刷新design: {e}")
+                    self.console.print(f"[bold red]❌ 读取README.md失败，无法刷新design: {e}[/bold red]")
+                    return False
+            else:
+                logger.error("没有README内容，且README.md文件不存在，无法刷新design")
+                self.console.print(f"[bold red]❌ 没有README内容，且README.md文件不存在，无法刷新design[/bold red]")
+                return False
+        
+        try:
+            self.design = self.generate_design_json()
+            logger.info("design.json已成功重新生成")
+            self.console.print("[green]✅ design.json已重新生成[/green]")
+            return True
+        except Exception as e:
+            logger.error(f"重新生成design.json失败: {e}")
+            self.console.print(f"[bold red]❌ 重新生成design.json失败: {e}[/bold red]")
+            return False
+
+    def update_file_entry(self, file_path: str, file_content: str) -> bool:
+        """
+        更新design.json中单个文件的条目，基于提供的文件内容
+        返回bool表示是否成功
+        """
+        logger.info(f"开始更新design.json中文件条目: {file_path}")
+        if not self.design:
+            # 加载现有design.json
+            design_path = self.output_dir / "design.json"
+            if not design_path.exists():
+                logger.error(f"design.json不存在于 {self.output_dir}")
+                self.console.print(f"[bold red]❌ design.json不存在于 {self.output_dir}[/bold red]")
+                return False
+            try:
+                with open(design_path, "r", encoding="utf-8") as f:
+                    design_data = json.load(f)
+                self.design = DesignModel(**design_data)
+            except Exception as e:
+                logger.error(f"加载design.json失败: {e}")
+                self.console.print(f"[bold red]❌ 加载design.json失败: {e}[/bold red]")
+                return False
+        
+        # 调用LLM分析文件内容，返回更新信息
+        system_prompt = (
+            "你是一个软件架构师。分析给定的文件内容，并返回对design.json中该文件条目的更新。"
+            "返回严格的JSON对象，包含以下字段：\n"
+            "- summary: 文件的新摘要\n"
+            "- dependencies: 依赖文件列表\n"
+            "- functions: 函数列表，每个对象有name, summary, inputs, outputs\n"
+            "- classes: 类列表，每个对象有name, summary, methods\n"
+            "注意：仅返回JSON，不要其他文本。"
+        )
+        # 准备当前design.json中该文件的条目信息
+        current_entry = None
+        for f in self.design.files:
+            if f.path == file_path:
+                current_entry = f.model_dump()
+                break
+        user_prompt = f"文件路径: {file_path}\n文件内容:\n{file_content}\n\n当前design.json中该文件的条目（如果存在）:\n{json.dumps(current_entry, indent=2) if current_entry else '无'}"
+        
+        try:
+            result = self._call_llm(system_prompt, user_prompt, temperature=0.2)
+            update_info = result
+            
+            # 查找或创建文件条目
+            file_model = None
+            for f in self.design.files:
+                if f.path == file_path:
+                    file_model = f
+                    break
+            if file_model is None:
+                # 创建新条目
+                file_model = FileModel(
+                    path=file_path,
+                    summary=update_info.get("summary", ""),
+                    dependencies=update_info.get("dependencies", []),
+                    functions=update_info.get("functions", []),
+                    classes=update_info.get("classes", [])
+                )
+                self.design.files.append(file_model)
+                logger.info(f"在design.json中创建了新文件条目: {file_path}")
+            else:
+                # 更新现有条目
+                file_model.summary = update_info.get("summary", file_model.summary)
+                file_model.dependencies = update_info.get("dependencies", file_model.dependencies)
+                file_model.functions = update_info.get("functions", file_model.functions)
+                file_model.classes = update_info.get("classes", file_model.classes)
+                logger.info(f"更新了design.json中的文件条目: {file_path}")
+            
+            # 保存更新后的design.json
+            design_path = self.output_dir / "design.json"
+            with open(design_path, "w", encoding="utf-8") as f:
+                json.dump(self.design.model_dump(), f, indent=2, ensure_ascii=False)
+            logger.info(f"design.json已更新，文件条目: {file_path}")
+            self.console.print(f"[green]✅ design.json中文件条目 {file_path} 已更新[/green]")
+            return True
+        except Exception as e:
+            logger.error(f"更新文件条目失败: {e}")
+            self.console.print(f"[bold red]❌ 更新文件条目失败: {e}[/bold red]")
+            return False
+
+    def sync_readme(self) -> bool:
+        """
+        同步README.md和design.json，确保内容一致性
+        返回bool表示是否成功
+        """
+        logger.info("开始同步README.md和design.json")
+        # 读取README.md
+        readme_path = self.output_dir / "README.md"
+        if not readme_path.exists():
+            logger.error(f"README.md不存在于 {self.output_dir}")
+            self.console.print(f"[bold red]❌ README.md不存在于 {self.output_dir}[/bold red]")
+            return False
+        try:
+            with open(readme_path, "r", encoding="utf-8") as f:
+                readme_content = f.read()
+        except Exception as e:
+            logger.error(f"读取README.md失败: {e}")
+            self.console.print(f"[bold red]❌ 读取README.md失败: {e}[/bold red]")
+            return False
+        
+        # 加载design.json
+        design_path = self.output_dir / "design.json"
+        if not design_path.exists():
+            logger.error(f"design.json不存在于 {self.output_dir}")
+            self.console.print(f"[bold red]❌ design.json不存在于 {self.output_dir}[/bold red]")
+            return False
+        try:
+            with open(design_path, "r", encoding="utf-8") as f:
+                design_data = json.load(f)
+            design = DesignModel(**design_data)
+        except Exception as e:
+            logger.error(f"加载design.json失败: {e}")
+            self.console.print(f"[bold red]❌ 加载design.json失败: {e}[/bold red]")
+            return False
+        
+        # 调用LLM比较和同步
+        system_prompt = (
+            "你是一个软件架构师。比较README.md内容和design.json，识别不一致之处，并建议更新。"
+            "返回严格的JSON对象，包含以下字段：\n"
+            "- needs_update: bool, 是否需要更新\n"
+            "- update_type: 'readme' 或 'design' 或 'both', 指示哪个需要更新\n"
+            "- updates: 对象，描述具体的更新内容\n"
+            "注意：仅返回JSON，不要其他文本。"
+        )
+        user_prompt = f"README.md内容:\n{readme_content}\n\ndesign.json内容:\n{json.dumps(design.model_dump(), indent=2)}"
+        
+        try:
+            result = self._call_llm(system_prompt, user_prompt, temperature=0.2)
+            needs_update = result.get("needs_update", False)
+            if not needs_update:
+                logger.info("README.md和design.json已同步，无需更新")
+                self.console.print("[green]✅ README.md和design.json已同步，无需更新[/green]")
+                return True
+            
+            update_type = result.get("update_type", "")
+            updates = result.get("updates", {})
+            if update_type == "readme":
+                # 更新README.md
+                new_readme = updates.get("new_readme", readme_content)
+                with open(readme_path, "w", encoding="utf-8") as f:
+                    f.write(new_readme)
+                logger.info("已更新README.md")
+                self.console.print("[green]✅ README.md已更新[/green]")
+            elif update_type == "design":
+                # 更新design.json
+                new_design_data = updates.get("new_design", design.model_dump())
+                design = DesignModel(**new_design_data)
+                with open(design_path, "w", encoding="utf-8") as f:
+                    json.dump(new_design_data, f, indent=2, ensure_ascii=False)
+                logger.info("已更新design.json")
+                self.console.print("[green]✅ design.json已更新[/green]")
+            elif update_type == "both":
+                # 更新两者
+                new_readme = updates.get("new_readme", readme_content)
+                new_design_data = updates.get("new_design", design.model_dump())
+                with open(readme_path, "w", encoding="utf-8") as f:
+                    f.write(new_readme)
+                design = DesignModel(**new_design_data)
+                with open(design_path, "w", encoding="utf-8") as f:
+                    json.dump(new_design_data, f, indent=2, ensure_ascii=False)
+                logger.info("已同步更新README.md和design.json")
+                self.console.print("[green]✅ README.md和design.json已同步更新[/green]")
+            else:
+                logger.warning(f"未知的update_type: {update_type}")
+                self.console.print(f"[yellow]⚠ 未知的update_type: {update_type}[/yellow]")
+                return False
+            return True
+        except Exception as e:
+            logger.error(f"同步README.md失败: {e}")
+            self.console.print(f"[bold red]❌ 同步README.md失败: {e}[/bold red]")
+            return False

src/llm_codegen/diff_applier.py

@@ -1,7 +1,7 @@
 """Diff 应用模块，使用 unidiff2 解析和应用 unified diff 格式。"""
 import os
 from typing import List, Dict, Any
-from unidiff import PatchSet, Hunk # 需要安装 unidiff2
+from unidiff import PatchSet, Hunk
 
 def _clean_path(path: str) -> str:
     """清理路径，移除 a/ 或 b/ 前缀。"""
@@ -14,7 +14,6 @@ def _clean_path(path: str) -> str:
 def parse_diff(diff: str) -> List[str]:
     """
     解析 unified diff 字符串，提取受影响的文件路径。
-    此函数使用 unidiff2 库来解析 diff。
 
     Args:
         diff: unified diff 格式的字符串。
@@ -24,88 +23,66 @@ def parse_diff(diff: str) -> List[str]:
     """
     try:
         patch_set = PatchSet(diff)
-        # unidiff2 中的 patch 对象有 source_file 和 target_file
-        # 我们关心的是目标文件，即修改后/创建的文件
         files = set()
         for patch in patch_set:
             if patch.target_file and patch.target_file != '/dev/null':
                 cleaned_path = _clean_path(patch.target_file)
                 files.add(cleaned_path)
         return list(files)
-    except Exception as e:
-        # 如果解析失败，抛出异常
-        raise e
+    except Exception:
+        # 解析失败时返回空列表，避免干扰
+        return []
 
 def _apply_single_patch_to_content(file_content_lines: List[str], patch_hunks: List[Hunk]) -> List[str]:
     """
     将一个文件的补丁（多个hunk）应用到其内容上。
 
     Args:
-        file_content_lines: 文件内容的行列表。
+        file_content_lines: 文件内容的行列表（每行可能带换行符）。
         patch_hunks: 针对该文件的一个或多个Hunk对象列表。
 
     Returns:
         应用了补丁后的新内容行列表。
     """
-    # 为了正确应用多个 hunk，必须从后往前处理，这样前面的修改才不会影响后面 hunk 的行号
+    # 从后往前处理 hunk，避免行号变化影响后续 hunk
     sorted_hunks = sorted(patch_hunks, key=lambda x: x.source_start, reverse=True)
-
     current_lines = file_content_lines[:]
 
     for hunk in sorted_hunks:
         source_start = hunk.source_start - 1  # 转换为0索引
         source_len = hunk.source_length
 
-        # 验证源文件内容是否与diff中的源行匹配 (这是一个简化的验证)
-        # source_lines() 包含了删除行(-)和上下文行( )
-        source_lines_from_diff = []
-        for line in hunk.source_lines():
-            # unidiff2的line对象转字符串会带有 +/-/ 等符号，需要strip掉
-            source_lines_from_diff.append(str(line).strip())
+        # 从 diff 中提取源行内容，去除所有尾随空白
+        source_lines_from_diff = [line.value.rstrip() for line in hunk.source_lines()]
 
+        # 提取实际文件对应行，并去除所有尾随空白（包括换行符）
         actual_source_lines = current_lines[source_start : source_start + source_len]
-        actual_source_for_comparison = [line.rstrip('\n\r') for line in actual_source_lines]
+        actual_source_for_comparison = [line.rstrip() for line in actual_source_lines]
 
         if source_lines_from_diff != actual_source_for_comparison:
-             raise ValueError(f"Hunk at line {hunk.source_start} does not match the source file content. Expected: {source_lines_from_diff}, Got: {actual_source_for_comparison}")
+            raise ValueError(f"Hunk at line {hunk.source_start} does not match source file content.")
 
-        # 构建新的内容部分 (target lines)
-        # target_lines() 包含了新增行(+)和上下文行( )
-        new_part = []
-        for line_obj in hunk.target_lines():
-            # 获取实际内容，strip掉符号，并保持原有的换行符风格
-            clean_line = str(line_obj).strip()
-            # 如果原文件有换行符，则恢复它
-            if current_lines and current_lines[0].endswith('\n'):
-                 original_trailing = "\n"
-            else:
-                 original_trailing = ""
-            new_part.append(clean_line + original_trailing)
+        # 构建目标内容：去除尾随空白后统一添加换行符
+        new_part = [line.value.rstrip() + '\n' for line in hunk.target_lines()]
 
-        # 替换原内容
-        new_lines = current_lines[:source_start] + new_part + current_lines[source_start + source_len:]
-        current_lines = new_lines
+        # 替换原内容区域
+        current_lines = (current_lines[:source_start] +
+                         new_part +
+                         current_lines[source_start + source_len:])
 
     return current_lines
 
-
 def apply_diff(diff: str, target_dir: str = ".") -> Dict[str, Any]:
     """
     应用 unified diff 到指定目录。
-    该函数解析 diff，读取磁盘上的文件，应用更改，并写回文件。
 
     Args:
         diff: unified diff 格式的字符串。
         target_dir: 目标目录路径，默认为当前目录。
 
     Returns:
-        字典，包含以下键：
-        - 'success' (bool): 是否成功应用。
-        - 'message' (str): 成功或错误消息。
-        - 'applied_files' (List[str]): 成功应用的文件列表（如果成功）。
-        - 'error_details' (str): 详细的错误信息（如果失败）。
+        字典，包含 success, message, applied_files, error_details。
     """
-    # 初始化返回值
     result = {
         'success': False,
         'message': '',
@@ -113,15 +90,12 @@ def apply_diff(diff: str, target_dir: str = ".") -> Dict[str, Any]:
         'error_details': ''
     }
 
-    # 检查 diff 是否为空
     if not diff or diff.strip() == '':
         result['message'] = 'Diff string is empty'
         return result
 
-    # 解析 diff 获取 PatchSet 对象
     try:
         patch_set = PatchSet(diff)
-        # 收集所有需要修改的目标文件路径
         affected_files = []
         for patch in patch_set:
             if patch.target_file and patch.target_file != '/dev/null':
@@ -132,56 +106,42 @@ def apply_diff(diff: str, target_dir: str = ".") -> Dict[str, Any]:
         result['error_details'] = str(e)
         return result
 
-    # 检查目标目录是否存在
     if not os.path.isdir(target_dir):
         result['message'] = f"Target directory does not exist: {target_dir}"
         return result
 
     try:
-        # 遍历每个 patch (即每个文件的变更)
         for patch_obj in patch_set:
-            # 获取目标文件路径 (修改后的文件名)
             target_path = _clean_path(patch_obj.target_file)
             if not target_path or target_path == '/dev/null':
-                # 如果目标是 /dev/null，则是删除操作，我们跳过
                 continue
 
             full_file_path = os.path.join(target_dir, target_path)
 
-            # 检查源文件是否存在 (对于新增操作，源文件可能是 /dev/null)
             source_path = _clean_path(patch_obj.source_file)
             if source_path == '/dev/null':
-                # 源是 /dev/null，说明这是一个新文件，内容从空开始
                 original_content_lines = []
             else:
-                # 源是普通文件，尝试读取
                 try:
                     with open(full_file_path, 'r', encoding='utf-8') as f:
                         original_content_lines = f.readlines()
                 except FileNotFoundError:
-                    # 如果文件不存在，但diff期望它存在，这会导致冲突
                     original_content_lines = []
 
-            # 应用此文件的补丁 (所有 hunks)
             modified_content_lines = _apply_single_patch_to_content(
                 original_content_lines,
-                list(patch_obj) # patch_obj 本身就是一个 Hunk 对象的迭代器
+                list(patch_obj)
             )
 
-            # 将修改后的内容写回文件
-            # 确保目录存在
             os.makedirs(os.path.dirname(full_file_path), exist_ok=True)
-
             with open(full_file_path, 'w', encoding='utf-8', newline='') as f:
                 f.writelines(modified_content_lines)
 
-        # 如果所有 patch 都成功应用
         result['success'] = True
         result['message'] = 'Diff applied successfully'
         result['applied_files'] = affected_files
 
     except Exception as e:
-        # 处理应用过程中可能出现的任何错误
         result['message'] = f"Error while applying diff: {str(e)}"
         result['error_details'] = str(e)
 

tests/test_diff_applier.py

@@ -90,7 +90,7 @@ def test_apply_diff_modify_existing_file():
  Original line 2"""
 
         result = apply_diff(diff, temp_dir)
-        assert result['success'] == True
+        assert result['success']
         assert 'existing.txt' in result['applied_files']
 
         with open(existing_file, 'r') as f:
@@ -114,7 +114,7 @@ def test_apply_diff_conflict_handling():
  Initial line 2"""
 
         result = apply_diff(diff, temp_dir)
-        assert result['success'] == False # Should fail due to mismatch
+        assert not result['success'] # Should fail due to mismatch
         # Check for conflict or error in message
         assert 'error' in result['message'].lower() or 'does not match' in result['message'].lower()
         assert result['error_details'] != ''