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code_scan/scanner/ai_reviewer.py

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2026-03-10 17:22:07 +08:00
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
AI 代码审查器
使用大模型进行智能代码审查
"""
import os
import json
import logging
from typing import Dict, Any, List, Optional
from scanner.base import BaseScanner
logger = logging.getLogger(__name__)
class AIReviewer(BaseScanner):
"""AI 代码审查器"""
def __init__(self, config: Dict[str, Any]):
"""
初始化 AI 审查器
Args:
config: AI 配置
"""
# 先初始化基类
super().__init__(config.get('scanner', {}))
self.config = config
self.enabled = config.get('enabled', True)
self.provider = config.get('provider', 'ollama')
self.model = config.get('model', 'llama3')
self.api_url = config.get('api_url', 'http://localhost:11434')
self.api_key = config.get('api_key', '')
self.max_lines = config.get('max_lines', 200)
if not self.enabled:
logger.info('AI 审查器已禁用')
return
logger.info(f'AI 审查器初始化: {self.provider}/{self.model}')
def scan(self, repo_url: str, commit_id: Optional[str], branch: str) -> Dict[str, Any]:
"""
执行代码扫描实现抽象方法
Args:
repo_url: 仓库 URL
commit_id: 提交 ID
branch: 分支名
Returns:
审查结果
"""
# 调用实际的审查逻辑
return self._do_review(repo_url=repo_url, commit_id=commit_id, branch=branch)
def _do_review(self, clone_dir: str = None, repo_url: str = None,
commit_id: str = None, branch: str = None,
language: str = 'python') -> Dict[str, Any]:
"""
执行 AI 代码审查
Args:
clone_dir: 仓库目录如果已克隆则直接传入
repo_url: 仓库 URL如果未克隆则需要传入
commit_id: 提交 ID
branch: 分支名
language: 编程语言
Returns:
审查结果
"""
if not self.enabled:
return {
'enabled': False,
'tool': 'AI Code Reviewer',
'reviews': [],
'summary': 'AI 审查已禁用'
}
try:
# 如果没有传入 clone_dir需要克隆
if not clone_dir and repo_url:
clone_dir = self.clone_repo(repo_url, commit_id, branch)
if not clone_dir or not os.path.exists(clone_dir):
return {
'enabled': True,
'tool': 'AI Code Reviewer',
'reviews': [],
'summary': '无法获取代码目录'
}
# 获取要审查的代码文件
files = self._get_code_files(clone_dir, language)
if not files:
return {
'enabled': True,
'tool': 'AI Code Reviewer',
'reviews': [],
'summary': '未找到可审查的代码文件'
}
# 对每个文件进行 AI 审查
all_reviews = []
for file_path in files[:5]: # 限制最多审查 5 个文件
review = self._review_file(file_path, language)
if review:
all_reviews.append(review)
# 生成总结
summary = self._generate_summary(all_reviews)
return {
'enabled': True,
'tool': 'AI Code Reviewer',
'reviews': all_reviews,
'summary': summary,
'files_reviewed': len(all_reviews),
'clone_dir': clone_dir # 返回 clone_dir 用于后续清理
}
except Exception as e:
logger.error(f'AI 审查失败: {str(e)}')
return {
'enabled': True,
'tool': 'AI Code Reviewer',
'error': str(e),
'reviews': [],
'summary': f'AI 审查出错: {str(e)}'
}
def _get_code_files(self, clone_dir: str, language: str) -> List[str]:
"""获取代码文件列表"""
import glob
extensions = {
'python': ['.py'],
'javascript': ['.js', '.jsx'],
'typescript': ['.ts', '.tsx']
}
exts = extensions.get(language, ['.py'])
files = []
for ext in exts:
pattern = os.path.join(clone_dir, '**', f'*{ext}')
files.extend(glob.glob(pattern, recursive=True))
# 过滤掉测试文件和虚拟环境
files = [f for f in files if not any(x in f for x in [
'test_', '_test.', 'venv', 'node_modules', '__pycache__'
])]
return files[:10] # 最多 10 个文件
def _review_file(self, file_path: str, language: str) -> Optional[Dict[str, Any]]:
"""审查单个文件"""
try:
with open(file_path, 'r', encoding='utf-8') as f:
code = f.read()
# 限制代码行数
lines = code.split('\n')
if len(lines) > self.max_lines:
code = '\n'.join(lines[:self.max_lines])
truncated = True
else:
truncated = False
# 构建 prompt
prompt = self._build_prompt(code, language)
# 调用 AI
response = self._call_ai(prompt)
if not response:
return None
# 解析响应
filename = os.path.basename(file_path)
return {
'file': filename,
'path': file_path,
'truncated': truncated,
'review': response
}
except Exception as e:
logger.warning(f'审查文件失败 {file_path}: {str(e)}')
return None
def _build_prompt(self, code: str, language: str) -> str:
"""构建审查 prompt"""
if language == 'python':
lang_name = 'Python'
elif language in ['javascript', 'typescript']:
lang_name = 'JavaScript/TypeScript'
else:
lang_name = language
prompt = f"""你是一位资深的 {lang_name} 代码审查专家。请审查以下代码,并给出:
1. **代码优点** - 写得好地方
2. **问题建议** - 需要改进的地方
3. **优化建议** - 如何让代码更好
请用中文回复保持简洁每个文件审查不超过 3 点建议
以下是代码
```{language}
{code}
```
请以 JSON 格式输出
```json
{{
"优点": ["..."],
"问题": ["..."],
"优化": ["..."]
}}
```"""
return prompt
def _call_ai(self, prompt: str) -> Optional[Dict[str, Any]]:
"""调用 AI 服务"""
try:
if self.provider == 'ollama':
return self._call_ollama(prompt)
elif self.provider == 'api':
return self._call_api(prompt)
else:
logger.warning(f'未知的 AI provider: {self.provider}')
return None
except Exception as e:
logger.error(f'AI 调用失败: {str(e)}')
return None
def _call_ollama(self, prompt: str) -> Optional[Dict[str, Any]]:
"""调用 Ollama 本地模型"""
import requests
url = f"{self.api_url}/api/generate"
payload = {
"model": self.model,
"prompt": prompt,
"stream": False,
"format": "json"
}
response = requests.post(url, json=payload, timeout=120)
if response.status_code == 200:
result = response.json()
content = result.get('response', '')
# 尝试解析 JSON
try:
# 提取 JSON 部分
if '```json' in content:
content = content.split('```json')[1].split('```')[0]
elif '```' in content:
content = content.split('```')[1].split('```')[0]
return json.loads(content.strip())
except json.JSONDecodeError:
# 如果不是 JSON直接返回文本
return {'raw_review': content}
logger.warning(f'Ollama 返回错误: {response.status_code}')
return None
def _call_api(self, prompt: str) -> Optional[Dict[str, Any]]:
"""调用在线 API"""
import requests
headers = {
'Content-Type': 'application/json'
}
if self.api_key:
headers['Authorization'] = f'Bearer {self.api_key}'
# 根据 API URL 自动判断 provider
if 'siliconflow' in self.api_url:
url = f"{self.api_url}/chat/completions"
payload = {
"model": self.model,
"messages": [{"role": "user", "content": prompt}],
"max_tokens": 1024,
"temperature": 0.7
}
elif 'deepseek' in self.api_url:
url = f"{self.api_url}/chat/completions"
payload = {
"model": self.model,
"messages": [{"role": "user", "content": prompt}],
"max_tokens": 1024,
"temperature": 0.7
}
else:
url = f"{self.api_url}/chat/completions"
payload = {
"model": self.model,
"messages": [{"role": "user", "content": prompt}],
"max_tokens": 1024,
"temperature": 0.7
}
response = requests.post(url, json=payload, headers=headers, timeout=120)
if response.status_code == 200:
result = response.json()
content = result['choices'][0]['message']['content']
try:
if '```json' in content:
content = content.split('```json')[1].split('```')[0]
elif '```' in content:
content = content.split('```')[1].split('```')[0]
return json.loads(content.strip())
except json.JSONDecodeError:
return {'raw_review': content}
logger.warning(f'API 返回错误: {response.status_code}')
return None
def _generate_summary(self, reviews: List[Dict[str, Any]]) -> str:
"""生成审查总结"""
if not reviews:
return '未找到需要审查的代码'
total_issues = sum(
len(r.get('review', {}).get('问题', [])) +
len(r.get('review', {}).get('优化', []))
for r in reviews
)
files_count = len(reviews)
if total_issues == 0:
return f'✅ AI 审查通过!审查了 {files_count} 个文件,未发现问题'
return f'🤖 AI 审查了 {files_count} 个文件,发现 {total_issues} 个改进建议'