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616 lines
22 KiB
Python
616 lines
22 KiB
Python
#!/usr/bin/env python3
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"""
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CI Code Review Script
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- 从 Gitea 获取 PR diff
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- 调用 LLM 进行代码审查
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- 将审查结果写回 PR 评论
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"""
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import os
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import sys
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import json
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import logging
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import argparse
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from typing import Optional, Tuple
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import requests
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# ============== 日志配置 ==============
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logging.basicConfig(
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level=logging.INFO,
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format="[%(asctime)s] [%(levelname)s] %(message)s",
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datefmt="%Y-%m-%d %H:%M:%S",
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)
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logger = logging.getLogger("ci_code_review")
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# ============== 常量配置 ==============
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# diff 最大字符数(超过则截断)
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MAX_DIFF_CHARS = int(os.getenv("MAX_DIFF_CHARS", "30000"))
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# LLM 调用超时时间(秒)
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LLM_TIMEOUT = int(os.getenv("LLM_TIMEOUT", "120"))
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# Gitea API 超时时间(秒)
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GITEA_TIMEOUT = int(os.getenv("GITEA_TIMEOUT", "30"))
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# 最大重试次数
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MAX_RETRIES = int(os.getenv("MAX_RETRIES", "2"))
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# LLM 提供商: openai (OpenAI兼容) / coze (扣子原生Bot API)
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LLM_PROVIDER = os.getenv("LLM_PROVIDER", "coze").lower()
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# ============== 工具函数 ==============
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def truncate_diff(diff_text: str, max_chars: int) -> Tuple[str, bool]:
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"""
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截断过大的 diff 内容,避免超出 LLM 上下文限制。
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优先保留文件头和前面的变更,末尾加提示。
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"""
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if len(diff_text) <= max_chars:
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return diff_text, False
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# 找到一个合适的截断位置(尽量在文件边界)
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truncated = diff_text[:max_chars]
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# 尝试在最后一个 "diff --git" 处截断,避免截断到一半
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last_file_boundary = truncated.rfind("\ndiff --git ")
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if last_file_boundary > max_chars // 2:
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truncated = truncated[:last_file_boundary]
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truncated += (
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f"\n\n... [DIFF TRUNCATED] 原始 diff 共 {len(diff_text)} 字符,"
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f"已截断至 {len(truncated)} 字符,仅审查前半部分。\n"
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)
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return truncated, True
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def get_env_or_fail(name: str) -> str:
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"""从环境变量获取值,不存在则报错退出。"""
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value = os.getenv(name)
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if not value:
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logger.error(f"环境变量 {name} 未设置")
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sys.exit(1)
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return value
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# ============== Gitea API 相关 ==============
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class GiteaClient:
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"""Gitea API 客户端"""
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def __init__(self, base_url: str, token: str, repo: str):
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# 确保 base_url 以 / 结尾
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self.base_url = base_url.rstrip("/") + "/"
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self.token = token
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self.repo = repo # 格式: owner/repo
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self.session = requests.Session()
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self.session.headers.update({
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"Authorization": f"token {token}",
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"Accept": "application/json",
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"Content-Type": "application/json",
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})
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def _api_url(self, path: str) -> str:
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"""拼接 API 路径"""
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return f"{self.base_url}api/v1/repos/{self.repo}/{path.lstrip('/')}"
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def get_pr_diff(self, pr_number: int) -> str:
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"""
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获取 PR 的 diff 内容。
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Gitea API: GET /repos/{owner}/{repo}/pulls/{index}.diff
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"""
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url = self._api_url(f"pulls/{pr_number}.diff")
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logger.info(f"获取 PR #{pr_number} diff: {url}")
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resp = self.session.get(url, timeout=GITEA_TIMEOUT, headers={
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"Accept": "text/plain",
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})
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if resp.status_code != 200:
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logger.error(f"获取 diff 失败: HTTP {resp.status_code} - {resp.text[:200]}")
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raise RuntimeError(f"Failed to get PR diff: HTTP {resp.status_code}")
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diff_text = resp.text
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logger.info(f"获取到 diff,共 {len(diff_text)} 字符")
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return diff_text
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def get_pr_files(self, pr_number: int) -> list:
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"""
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获取 PR 修改的文件列表。
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Gitea API: GET /repos/{owner}/{repo}/pulls/{index}/files
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"""
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url = self._api_url(f"pulls/{pr_number}/files")
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logger.info(f"获取 PR #{pr_number} 文件列表")
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resp = self.session.get(url, timeout=GITEA_TIMEOUT)
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if resp.status_code != 200:
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logger.warning(f"获取文件列表失败: HTTP {resp.status_code}")
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return []
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files = resp.json()
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logger.info(f"PR 修改了 {len(files)} 个文件")
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return files
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def post_pr_comment(self, pr_number: int, body: str) -> bool:
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"""
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在 PR 上发布评论。
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Gitea API: POST /repos/{owner}/{repo}/issues/{index}/comments
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(Gitea 中 PR 评论走 issues 接口)
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"""
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url = self._api_url(f"issues/{pr_number}/comments")
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logger.info(f"发布 PR 评论: {url}")
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payload = {"body": body}
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resp = self.session.post(
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url,
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data=json.dumps(payload),
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timeout=GITEA_TIMEOUT,
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)
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if resp.status_code not in (200, 201):
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logger.error(f"发布评论失败: HTTP {resp.status_code} - {resp.text[:200]}")
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return False
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logger.info(f"评论发布成功,评论 ID: {resp.json().get('id', 'unknown')}")
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return True
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def get_existing_review_comments(self, pr_number: int, marker: str) -> list:
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"""
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获取 PR 上已有的审查评论(带标识),用于后续更新或删除旧评论。
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"""
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url = self._api_url(f"issues/{pr_number}/comments")
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resp = self.session.get(url, timeout=GITEA_TIMEOUT)
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if resp.status_code != 200:
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return []
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comments = resp.json()
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return [c for c in comments if marker in c.get("body", "")]
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# ============== LLM 调用 ==============
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def build_review_prompt(diff_text: str, pr_number: int, file_list: list) -> str:
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"""构建代码审查的 Prompt"""
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file_names = [f.get("filename", "") for f in file_list] if file_list else []
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files_summary = ", ".join(file_names[:10]) if file_names else "未知"
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if len(file_names) > 10:
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files_summary += f" 等 {len(file_names)} 个文件"
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prompt = f"""你是一位资深代码审查专家,请对以下 Pull Request 的代码变更进行严格审查。
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**PR 信息:**
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- PR 编号:#{pr_number}
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- 修改文件:{files_summary}
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**审查重点:**
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1. **严重问题**:逻辑错误、潜在 Bug、安全漏洞、数据不一致、空指针、资源泄漏、并发问题等
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2. **代码质量**:边界条件处理、错误处理是否完善、异常场景覆盖
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3. **性能隐患**:明显的性能问题、低效算法、不必要的重复计算
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4. **最佳实践**:代码规范、可读性、可维护性、命名是否清晰
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**审查原则:**
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- 只针对变更的代码(diff)进行审查,不要审查未改动的代码
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- 严重问题必须指出具体文件名和大致行号(根据 diff 中的行号推断)
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- 给出明确、可操作的建议,不要空泛
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- 如果代码质量很好、没有明显问题,也请如实说明
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- 用中文回复
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**输出格式要求(严格遵守,不要输出格式以外的内容):**
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## 代码审查结果 - PR #{pr_number}
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### ⚠️ 问题(N个需要修改)
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1. **文件名 第X行**:问题描述(说明原因和可能的影响)
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2. **文件名 第X行**:问题描述
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### 💡 建议(N个可选)
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1. 建议描述(可选优化、代码风格等)
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---
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✅ 格式检查通过 | ❌ 逻辑审查需修改 | ⚠️ 建议关注性能
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**说明:** 底部的三个状态标签,根据审查结果勾选或取消对应标记(用 ✅/❌/⚠️ 表示):
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- 格式检查:代码格式、命名规范等是否达标
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- 逻辑审查:是否存在必须修改的逻辑问题
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- 性能:是否存在需要关注的性能问题
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**以下是代码 diff 内容:**
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```diff
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{diff_text}
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```
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"""
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return prompt
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def call_llm_openai(
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prompt: str,
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llm_base_url: str,
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llm_api_key: str,
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llm_model: str,
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) -> Optional[str]:
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"""OpenAI 兼容模式调用"""
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base_url = llm_base_url.rstrip("/") + "/"
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api_url = f"{base_url}chat/completions"
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headers = {
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"Authorization": f"Bearer {llm_api_key}",
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"Content-Type": "application/json",
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}
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payload = {
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"model": llm_model,
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"messages": [
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{
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"role": "system",
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"content": "你是一位严谨的资深代码审查专家,擅长发现代码中的逻辑错误、安全隐患和性能问题。",
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},
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{
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"role": "user",
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"content": prompt,
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},
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],
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"temperature": 0.3,
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"max_tokens": 2048,
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}
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logger.info(f"调用 LLM (OpenAI兼容): {api_url}, model={llm_model}")
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last_error = None
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for attempt in range(MAX_RETRIES + 1):
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try:
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resp = requests.post(
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api_url,
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headers=headers,
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json=payload,
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timeout=LLM_TIMEOUT,
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)
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if resp.status_code != 200:
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logger.warning(
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f"LLM 调用失败 (第 {attempt + 1} 次): "
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f"HTTP {resp.status_code} - {resp.text[:200]}"
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)
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last_error = f"HTTP {resp.status_code}"
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continue
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data = resp.json()
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choices = data.get("choices", [])
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if not choices:
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logger.warning(f"LLM 返回空结果 (第 {attempt + 1} 次)")
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last_error = "empty choices"
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continue
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content = choices[0].get("message", {}).get("content", "")
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if not content.strip():
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logger.warning(f"LLM 返回空内容 (第 {attempt + 1} 次)")
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last_error = "empty content"
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continue
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logger.info(f"LLM 审查完成,结果长度: {len(content)} 字符")
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return content
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except requests.Timeout:
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logger.warning(f"LLM 调用超时 (第 {attempt + 1} 次)")
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last_error = "timeout"
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except requests.RequestException as e:
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logger.warning(f"LLM 调用异常 (第 {attempt + 1} 次): {e}")
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last_error = str(e)
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logger.error(f"LLM 调用最终失败: {last_error}")
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return None
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def call_llm_coze(
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prompt: str,
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llm_base_url: str,
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llm_api_key: str,
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llm_model: str,
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coze_bot_id: str,
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) -> Optional[str]:
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"""扣子(Coze)原生 Bot API 调用(支持异步轮询)"""
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import time
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base_url = llm_base_url.rstrip("/") + "/"
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api_url = f"{base_url}v3/chat"
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headers = {
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"Authorization": f"Bearer {llm_api_key}",
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"Content-Type": "application/json",
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}
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payload = {
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"bot_id": coze_bot_id,
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"user_id": "ci-code-review-bot",
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"stream": False,
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"additional_messages": [
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{
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"role": "user",
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"content": prompt,
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"content_type": "text",
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}
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],
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}
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logger.info(f"调用 LLM (Coze): {api_url}, bot_id={coze_bot_id}")
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last_error = None
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for attempt in range(MAX_RETRIES + 1):
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try:
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resp = requests.post(
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api_url,
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headers=headers,
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json=payload,
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timeout=LLM_TIMEOUT,
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)
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if resp.status_code != 200:
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logger.warning(
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f"Coze 调用失败 (第 {attempt + 1} 次): "
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f"HTTP {resp.status_code} - {resp.text[:300]}"
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)
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last_error = f"HTTP {resp.status_code}"
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continue
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data = resp.json()
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chat_data = data.get("data", {})
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chat_id = chat_data.get("id", "")
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conversation_id = chat_data.get("conversation_id", "")
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status = chat_data.get("status", "")
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# Coze v3 API 异步:先返回 in_progress,需要轮询
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if status == "in_progress" and conversation_id and chat_id:
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logger.info(f"Coze 异步处理中,开始轮询... (chat_id={chat_id[:12]}...)")
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# 轮询 message 列表接口(GET + query参数),最多等 LLM_TIMEOUT 秒
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poll_url = f"{base_url}v3/chat/message/list"
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poll_start = time.time()
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poll_interval = 3 # 每3秒轮询一次
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while time.time() - poll_start < LLM_TIMEOUT:
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time.sleep(poll_interval)
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poll_params = {
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"chat_id": chat_id,
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"conversation_id": conversation_id,
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}
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poll_resp = requests.get(
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poll_url,
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headers=headers,
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params=poll_params,
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timeout=GITEA_TIMEOUT,
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)
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if poll_resp.status_code != 200:
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logger.debug(f"轮询返回 HTTP {poll_resp.status_code}: {poll_resp.text[:100]}")
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continue
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poll_data = poll_resp.json()
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if poll_data.get("code", 0) != 0:
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logger.debug(f"轮询返回错误: {poll_data.get('msg', '')}")
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continue
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messages = poll_data.get("data", []) or []
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# 找assistant的answer消息
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content = None
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for msg in messages:
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if msg.get("role") == "assistant" and msg.get("type") == "answer":
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content = msg.get("content", "")
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break
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if content and content.strip():
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logger.info(f"Coze 审查完成,结果长度: {len(content)} 字符")
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return content
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logger.warning(f"Coze 轮询超时 ({LLM_TIMEOUT}s),未拿到结果")
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last_error = "poll timeout"
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continue
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# 同步返回的情况(兼容)
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content = None
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messages = chat_data.get("messages", []) or data.get("messages", [])
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for msg in messages:
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if msg.get("role") == "assistant" and msg.get("type") == "answer":
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content = msg.get("content", "")
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break
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if not content:
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content = chat_data.get("content") or data.get("content")
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if not content:
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choices = data.get("choices", [])
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if choices:
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content = choices[0].get("message", {}).get("content", "")
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if not content or not content.strip():
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logger.warning(f"Coze 返回空内容 (第 {attempt + 1} 次): {str(data)[:200]}")
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last_error = "empty content"
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continue
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logger.info(f"Coze 审查完成,结果长度: {len(content)} 字符")
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return content
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except requests.Timeout:
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logger.warning(f"Coze 调用超时 (第 {attempt + 1} 次)")
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last_error = "timeout"
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except requests.RequestException as e:
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logger.warning(f"Coze 调用异常 (第 {attempt + 1} 次): {e}")
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last_error = str(e)
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logger.error(f"Coze 调用最终失败: {last_error}")
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return None
|
||
|
||
|
||
def call_llm_for_review(
|
||
diff_text: str,
|
||
pr_number: int,
|
||
file_list: list,
|
||
llm_base_url: str,
|
||
llm_api_key: str,
|
||
llm_model: str,
|
||
coze_bot_id: str = "",
|
||
) -> Optional[str]:
|
||
"""
|
||
调用 LLM 进行代码审查,返回审查结果文本。
|
||
失败时返回 None。
|
||
根据 LLM_PROVIDER 环境变量选择调用方式。
|
||
"""
|
||
prompt = build_review_prompt(diff_text, pr_number, file_list)
|
||
logger.info(f"Prompt 长度: {len(prompt)} 字符")
|
||
|
||
provider = LLM_PROVIDER
|
||
|
||
if provider == "coze":
|
||
return call_llm_coze(prompt, llm_base_url, llm_api_key, llm_model, coze_bot_id)
|
||
else:
|
||
# 默认 OpenAI 兼容
|
||
return call_llm_openai(prompt, llm_base_url, llm_api_key, llm_model)
|
||
|
||
|
||
# ============== 主流程 ==============
|
||
def main():
|
||
parser = argparse.ArgumentParser(description="CI AI 代码审查脚本")
|
||
parser.add_argument("--pr", type=int, help="PR 编号(也可通过 PR_NUMBER 环境变量)")
|
||
parser.add_argument("--repo", type=str, help="仓库名 owner/repo(也可通过 REPO_NAME 环境变量)")
|
||
parser.add_argument("--gitea-url", type=str, help="Gitea 地址(也可通过 GITEA_API_URL 环境变量)")
|
||
parser.add_argument("--gitea-token", type=str, help="Gitea Token(也可通过 GITEA_TOKEN 环境变量)")
|
||
parser.add_argument("--dry-run", action="store_true", help="只输出审查结果,不发表评论")
|
||
args = parser.parse_args()
|
||
|
||
# 读取配置
|
||
gitea_url = args.gitea_url or os.getenv("GITEA_API_URL") or os.getenv("GITEA_SERVER_URL")
|
||
gitea_token = args.gitea_token or os.getenv("GITEA_TOKEN")
|
||
repo_name = args.repo or os.getenv("REPO_NAME") or os.getenv("GITEA_REPO")
|
||
pr_number = args.pr or int(os.getenv("PR_NUMBER") or os.getenv("GITEA_PR_NUMBER") or 0)
|
||
|
||
llm_base_url = os.getenv("LLM_BASE_URL")
|
||
llm_api_key = os.getenv("LLM_API_KEY")
|
||
llm_model = os.getenv("LLM_MODEL", "")
|
||
coze_bot_id = os.getenv("COZE_BOT_ID", os.getenv("COZE_BOTID", ""))
|
||
|
||
# 根据 provider 设置默认值
|
||
provider = LLM_PROVIDER
|
||
if provider == "coze":
|
||
# 扣子模式:默认国内站,key 兼容多种环境变量名
|
||
if not llm_base_url:
|
||
llm_base_url = "https://api.coze.cn"
|
||
if not llm_api_key:
|
||
llm_api_key = os.getenv("COZE_API_KEY", "") or os.getenv("COZE_PAT", "")
|
||
else:
|
||
# OpenAI兼容模式:默认模型
|
||
if not llm_model:
|
||
llm_model = "gpt-4o-mini"
|
||
|
||
# 必要参数校验
|
||
missing = []
|
||
if not gitea_url:
|
||
missing.append("GITEA_API_URL")
|
||
if not gitea_token:
|
||
missing.append("GITEA_TOKEN")
|
||
if not repo_name:
|
||
missing.append("REPO_NAME")
|
||
if not pr_number:
|
||
missing.append("PR_NUMBER")
|
||
if not llm_base_url:
|
||
missing.append("LLM_BASE_URL")
|
||
if not llm_api_key:
|
||
missing.append("LLM_API_KEY")
|
||
if provider == "coze" and not coze_bot_id:
|
||
missing.append("COZE_BOT_ID (扣子模式需要)")
|
||
|
||
if missing:
|
||
logger.error(f"缺少必要配置: {', '.join(missing)}")
|
||
# 审查失败不阻断 CI,返回 0
|
||
logger.info("审查脚本因配置缺失而跳过,退出码 0")
|
||
sys.exit(0)
|
||
|
||
logger.info(f"开始审查 PR #{pr_number},仓库: {repo_name}")
|
||
logger.info(f"Gitea: {gitea_url}")
|
||
logger.info(f"LLM: {llm_base_url} (model={llm_model})")
|
||
|
||
try:
|
||
# 1. 初始化 Gitea 客户端
|
||
gitea = GiteaClient(gitea_url, gitea_token, repo_name)
|
||
|
||
# 2. 获取 PR diff 和文件列表
|
||
try:
|
||
diff_text = gitea.get_pr_diff(pr_number)
|
||
file_list = gitea.get_pr_files(pr_number)
|
||
except Exception as e:
|
||
logger.error(f"获取 PR 信息失败: {e}")
|
||
logger.info("审查脚本异常退出,退出码 0(不阻断 CI)")
|
||
sys.exit(0)
|
||
|
||
# 3. 过滤掉不需要审查的文件(如 lock 文件、生成的文件等)
|
||
skip_extensions = (".lock", ".sum", ".min.js", ".min.css", ".map", ".png", ".jpg", ".jpeg", ".gif", ".svg", ".ico", ".woff", ".woff2", ".ttf", ".eot")
|
||
if file_list:
|
||
skipped = [f.get("filename") for f in file_list
|
||
if f.get("filename", "").endswith(skip_extensions)
|
||
or f.get("status") == "removed"]
|
||
if skipped:
|
||
logger.info(f"跳过 {len(skipped)} 个非文本/已删除文件: {', '.join(skipped[:5])}...")
|
||
|
||
# 4. 截断过大的 diff
|
||
diff_text, was_truncated = truncate_diff(diff_text, MAX_DIFF_CHARS)
|
||
if was_truncated:
|
||
logger.warning(f"Diff 过大,已截断至 {len(diff_text)} 字符")
|
||
|
||
# 5. 如果 diff 为空,直接跳过
|
||
if not diff_text.strip():
|
||
logger.info("Diff 为空,无需审查")
|
||
sys.exit(0)
|
||
|
||
# 6. 调用 LLM 审查
|
||
review_result = call_llm_for_review(
|
||
diff_text=diff_text,
|
||
pr_number=pr_number,
|
||
file_list=file_list,
|
||
llm_base_url=llm_base_url,
|
||
llm_api_key=llm_api_key,
|
||
llm_model=llm_model,
|
||
coze_bot_id=coze_bot_id,
|
||
)
|
||
|
||
if not review_result:
|
||
logger.error("LLM 审查失败,跳过发布评论")
|
||
logger.info("审查脚本异常退出,退出码 0(不阻断 CI)")
|
||
sys.exit(0)
|
||
|
||
# 7. 加上审查时间和标识(便于识别是自动审查)
|
||
from datetime import datetime
|
||
timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
|
||
marker = "<!-- AI_CODE_REVIEW_AUTO_COMMENT -->"
|
||
full_comment = f"""{review_result}
|
||
|
||
---
|
||
<sub>🤖 由 AI 代码审查机器人自动生成 | {timestamp} | 模型: {llm_model}</sub>
|
||
|
||
{marker}
|
||
"""
|
||
|
||
# 8. 输出审查结果到日志
|
||
logger.info("=" * 60)
|
||
logger.info("审查结果:")
|
||
for line in review_result.split("\n")[:30]:
|
||
logger.info(line)
|
||
if len(review_result.split("\n")) > 30:
|
||
logger.info(f"... 共 {len(review_result.split(chr(10)))} 行")
|
||
logger.info("=" * 60)
|
||
|
||
# 9. 发布评论
|
||
if args.dry_run:
|
||
logger.info("--dry-run 模式,跳过发布评论")
|
||
print(full_comment)
|
||
else:
|
||
success = gitea.post_pr_comment(pr_number, full_comment)
|
||
if not success:
|
||
logger.warning("评论发布失败,但不影响 CI 通过")
|
||
|
||
# 10. 判断是否有严重问题(可选阻断)
|
||
# 目前只做建议,不阻断合并,始终返回 0
|
||
has_critical = "问题" in review_result and ("❌" in review_result or "需修改" in review_result)
|
||
if has_critical:
|
||
logger.warning("检测到需修改的问题,但当前配置为仅建议,不阻断合并")
|
||
|
||
logger.info("代码审查完成")
|
||
sys.exit(0)
|
||
|
||
except Exception as e:
|
||
logger.exception(f"审查脚本发生未预期的异常: {e}")
|
||
# 任何异常都不阻断 CI
|
||
logger.info("审查脚本异常退出,退出码 0(不阻断 CI)")
|
||
sys.exit(0)
|
||
|
||
|
||
if __name__ == "__main__":
|
||
main()
|