gitlab备份代码

这是ChatGPT帮我写的，还没测试，先记录一下吧

要实现的功能：

1. 获取所有 GitLab 仓库地址
2. 首次使用 git clone --mirror 完整备份所有内容（包括所有分支和标签）
3. 后续自动使用 git remote update 拉取所有分支和最新提交
4. 支持配置 GitLab 地址、私钥 Token、本地备份目录等
5. 可用于定时任务执行（如每日自动备份）

代码如下：

import os
import subprocess
import requests

# ==== 配置区域 ====
GITLAB_URL = "https://gitlab.example.com"
PRIVATE_TOKEN = "your_private_token"
BACKUP_DIR = "/data/gitlab_backup"
USE_SSH = True  # True 使用 SSH 地址, False 使用 HTTP 地址
PER_PAGE = 100  # 每页项目数
MAX_PAGES = 10  # 最大页数限制
# ===================
HEADERS = {"PRIVATE-TOKEN": PRIVATE_TOKEN}
REPO_KEY = "ssh_url_to_repo" if USE_SSH else "http_url_to_repo"
os.makedirs(BACKUP_DIR, exist_ok=True)
def run(cmd, cwd=None):
    result = subprocess.run(cmd, shell=True, cwd=cwd,
                            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    return result.returncode, result.stdout.decode(), result.stderr.decode()

def get_projects():
    repos = []
    for page in range(1, MAX_PAGES + 1):
        url = f"{GITLAB_URL}/api/v4/projects?per_page={PER_PAGE}&page={page}&simple=true&order_by=id&sort=asc"
        response = requests.get(url, headers=HEADERS)
        if response.status_code != 200:
            print(f"[ERROR] Failed to fetch projects: {response.status_code}")
            break
        data = response.json()
        if not data:
            break
        repos.extend([project[REPO_KEY] for project in data])
    return repos

def backup():
    repos = get_projects()
    print(f"🔍 发现 {len(repos)} 个仓库")
    for repo_url in repos:
        repo_name = os.path.basename(repo_url).replace(".git", "")
        repo_dir = os.path.join(BACKUP_DIR, f"{repo_name}.git")
        if os.path.exists(repo_dir):
            print(f"🔄 更新 {repo_name} ...")
            cmd = "git remote update --prune"
            code, out, err = run(cmd, cwd=repo_dir)
        else:
            print(f"📥 克隆 {repo_name} ...")
            cmd = f"git clone --mirror {repo_url} {repo_dir}"
            code, out, err = run(cmd)

        if code != 0:
            print(f"❌ [{repo_name}] 错误:\n{err}")
        else:
            print(f"✅ [{repo_name}] 完成")

if __name__ == "__main__":
    backup()