Update sync_data.sh
Browse files- sync_data.sh +97 -255
sync_data.sh
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#!/bin/bash
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# 建议添加,使脚本在命令失败时退出,并确保管道错误能被捕获
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# set -e
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# set -o pipefail
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#
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if [
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fi
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#
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FULL_WEBDAV_URL=$(echo "$FULL_WEBDAV_URL" | sed 's:/*$::') # 清理末尾斜杠
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fi
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# 下载最新备份并恢复
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restore_backup() {
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echo "开始从 WebDAV 下载最新备份..."
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# 将环境变量导出,以便Python脚本能通过os.environ获取,而不是直接注入字符串,稍微安全些
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export FULL_WEBDAV_URL_FOR_PYTHON="$FULL_WEBDAV_URL"
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export WEBDAV_USERNAME_FOR_PYTHON="$WEBDAV_USERNAME"
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export WEBDAV_PASSWORD_FOR_PYTHON="$WEBDAV_PASSWORD"
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python3 -c "
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import sys
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import os
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import tarfile
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import requests
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from webdav3.client import Client
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import shutil
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full_url = os.environ.get('FULL_WEBDAV_URL_FOR_PYTHON')
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username = os.environ.get('WEBDAV_USERNAME_FOR_PYTHON')
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password = os.environ.get('WEBDAV_PASSWORD_FOR_PYTHON')
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if not all([full_url, username, password]):
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print('Python: 缺失必要的环境变量')
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sys.exit(1)
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options = {
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'webdav_hostname': full_url,
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'webdav_login': username,
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'webdav_password': password
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}
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client = Client(options)
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try:
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backups = [file for file in client.list() if file.endswith('.tar.gz') and file.startswith('webui_backup_')]
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except Exception as e:
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print(f'Python: 列出WebDAV文件失败: {e}')
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sys.exit(1)
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if not backups:
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print('Python: 没有找到备份文件')
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sys.exit(0) # 没有备份不是致命错误,可能是首次运行
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latest_backup = sorted(backups)[-1]
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print(f'Python: 最新备份文件:{latest_backup}')
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download_url = f'{full_url}/{latest_backup}'
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local_tmp_backup_file = f'/tmp/{latest_backup}'
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try:
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with requests.get(download_url, auth=(username, password), stream=True, timeout=60) as r:
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r.raise_for_status() # 会对4xx/5xx状态码抛出HTTPError
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with open(local_tmp_backup_file, 'wb') as f:
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for chunk in r.iter_content(chunk_size=8192):
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f.write(chunk)
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print(f'Python: 成功下载备份文件到 {local_tmp_backup_file}')
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except requests.exceptions.RequestException as e:
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print(f'Python: 下载备份失败: {e}')
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sys.exit(1)
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if os.path.exists(local_tmp_backup_file):
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temp_dir = '/tmp/restore_webui_db'
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if os.path.exists(temp_dir): # 先清理旧的临时解压目录
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shutil.rmtree(temp_dir)
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os.makedirs(temp_dir, exist_ok=True)
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try:
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with tarfile.open(local_tmp_backup_file, 'r:gz') as tar:
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tar.extractall(temp_dir)
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print(f'Python: 文件已解压到 {temp_dir}')
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except tarfile.TarError as e:
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print(f'Python: 解压备份文件失败: {e}')
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shutil.rmtree(temp_dir, ignore_errors=True)
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os.remove(local_tmp_backup_file)
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sys.exit(1)
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db_found = False
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for root, dirs, files in os.walk(temp_dir):
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if 'webui.db' in files:
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db_path = os.path.join(root, 'webui.db')
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target_data_dir = './data' # 脚本工作目录下的data文件夹
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os.makedirs(target_data_dir, exist_ok=True)
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target_db_path = os.path.join(target_data_dir, 'webui.db')
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os.replace(db_path, target_db_path) # 原子替换
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print(f'Python: 成功从 {latest_backup} 恢复备份到 {target_db_path}')
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db_found = True
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break
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if not db_found:
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print('Python: 备份文件中未找到 webui.db')
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try:
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shutil.rmtree(temp_dir)
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except Exception as e:
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print(f'Python: 删除临时目录 {temp_dir} 时出错:{e}')
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os.remove(local_tmp_backup_file)
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else:
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print('Python: 下载的备份文件不存在 (这不应该发生)') # 逻辑上不应到此
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"
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# 检查Python脚本的退出状态
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if [ $? -ne 0 ]; then
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echo "Bash: restore_backup中的Python脚本执行失败。"
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# 可以选择在这里exit 1,如果恢复失败是关键的
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fi
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# 清理导出的环境变量
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unset FULL_WEBDAV_URL_FOR_PYTHON WEBDAV_USERNAME_FOR_PYTHON WEBDAV_PASSWORD_FOR_PYTHON
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}
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# 首次启动时下载最新备份
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echo "正在检查是否需要从 WebDAV 恢复备份..."
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# 你可以添加一个逻辑,比如检查 ./data/webui.db 是否已存在,如果存在则不恢复
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# if [ ! -f "./data/webui.db" ]; then
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restore_backup
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# else
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# echo "./data/webui.db 已存在,跳过首次恢复。"
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# fi
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#
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sync_data() {
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echo "当前 webui.db 校验和: $current_checksum"
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echo "上次 webui.db 校验和: $previous_checksum" # 如果checksum文件不存在,这里会是空
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if [ "$current_checksum" != "$previous_checksum" ]; then
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echo "webui.db 文件已更改或首次备份,执行备份上传操作。"
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timestamp=$(date +%Y%m%d_%H%M%S)
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backup_file="webui_backup_${timestamp}.tar.gz"
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local_tmp_tar_file="/tmp/${backup_file}"
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# 打包数据库文件,-C 改变目录,使得压缩包内不含data/前缀
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echo "正在打包 ${db_file} 为 ${local_tmp_tar_file}..."
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tar -czf "${local_tmp_tar_file}" -C "$(dirname "$db_file")" "$(basename "$db_file")"
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if [
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options = {
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'webdav_hostname': full_url,
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'webdav_login': username,
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'webdav_password': password
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}
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client = Client(options)
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try:
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backups = [file for file in client.list() if file.endswith('.tar.gz') and file.startswith('webui_backup_')]
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except Exception as e:
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print(f'Python: 列出WebDAV文件失败 (清理时): {e}')
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sys.exit(1) # 失败则不继续
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backups.sort() # 按名称排序,旧的在前
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if len(backups) > keep_backups:
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to_delete_count = len(backups) - keep_backups
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print(f'Python: 找到 {len(backups)} 个备份, 将删除最旧的 {to_delete_count} 个以保留 {keep_backups} 个。')
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for i in range(to_delete_count):
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file_to_delete = backups[i]
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try:
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client.clean(file_to_delete) # webdav3 的 clean 方法用于删除
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print(f'Python: 成功删除旧备份 {file_to_delete}')
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except Exception as e:
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print(f'Python: 删除旧备份 {file_to_delete} 失败: {e}')
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else:
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print(f'Python: 找到 {len(backups)} 个备份,少于或等于配置的 {keep_backups} 个,无需清理。')
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" 2>&1 # 将Python的stderr重定向到stdout
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if [ $? -ne 0 ]; then
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echo "Bash: 清理旧备份的Python脚本执行失败。"
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fi
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unset FULL_WEBDAV_URL_FOR_PYTHON WEBDAV_USERNAME_FOR_PYTHON WEBDAV_PASSWORD_FOR_PYTHON # 清理环境变量
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else
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echo "上传 ${backup_file} 至 WebDAV 失败。校验和文件未更新。"
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fi
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else
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fi
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echo "
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echo "数据库文件 ${db_file} 尚不存在,等待下次同步..."
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# 如果数据库文件不存在,考虑是否要删除checksum文件,以便下次文件出现时强制备份
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# if [ -f "$checksum_file" ]; then
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# echo "删除旧的校验和文件 $checksum_file 因为数据库文件不存在。"
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# rm -f "$checksum_file"
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# fi
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fi
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SYNC_INTERVAL=${SYNC_INTERVAL:-600} # 默认10分钟
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WEBDAV_KEEP_BACKUPS=${WEBDAV_KEEP_BACKUPS:-5} # 默认保留5个备份
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export WEBDAV_KEEP_BACKUPS # 导出给Python清理脚本用
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sleep $SYNC_INTERVAL
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done
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}
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# 后台启动同步进程
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sync_data &
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# 保持脚本运行,如果这是Docker等环境的入口点且没有其他前台进程
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# 例如: wait $! 或 tail -f /dev/null
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# 如果 `sync_data &` 是脚本的最后一行,并且脚本需要持续运行,
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# 那么sync_data的父shell(即此脚本)会退出,但sync_data子进程会继续。
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# 在某些情况下(如简单的docker entrypoint),这可能是期望的行为。
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# 如果你需要这个主脚本保持存活,而不是仅仅启动一个后台进程然后退出,
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# 你可能需要一个前台阻塞命令,或者将 sync_data 直接运行而不加 `&` (但这会阻塞恢复之后的任何操作)。
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# 对于备份脚本,后台运行通常是合适的。
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echo "同步进程已在后台启动。PID: $!"
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# 检查必要的环境变量
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if [ -z "$G_NAME" ] || [ -z "$G_TOKEN" ]; then
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echo "缺少必要的环境变量 G_NAME 或 G_TOKEN"
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exit 1
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fi
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# 解析仓库名和用户名
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IFS='/' read -r GITHUB_USER GITHUB_REPO <<< "$G_NAME"
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# 构建 GitHub 仓库的克隆 URL,包含令牌
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REPO_URL="https://${G_TOKEN}@github.com/${G_NAME}.git"
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mkdir -p ./data/github_data
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# 克隆仓库
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echo "正在克隆仓库……"
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git clone "$REPO_URL" ./data/github_data || {
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echo "克隆失败,请检查 G_NAME 和 G_TOKEN 是否正确。"
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exit 1
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if [ -f ./data/github_data/webui.db ]; then
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cp ./data/github_data/webui.db ./data/webui.db
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echo "从 GitHub 仓库中拉取成功"
|
| 25 |
+
else
|
| 26 |
+
echo "GitHub 仓库中未找到 webui.db,将在同步时推送"
|
| 27 |
+
fi
|
| 28 |
|
| 29 |
+
# 定义同步函数
|
| 30 |
sync_data() {
|
| 31 |
+
while true; do
|
| 32 |
+
# 1. 同步到 GitHub
|
| 33 |
+
echo "正在开始同步"
|
| 34 |
+
# 进入仓库目录
|
| 35 |
+
cd ./data/github_data
|
| 36 |
+
# 配置 Git 用户信息
|
| 37 |
+
git config user.name "AutoSync Bot"
|
| 38 |
+
git config user.email "autosync@bot.com"
|
| 39 |
+
|
| 40 |
+
# 确保在正确的分支
|
| 41 |
+
git checkout main || git checkout master
|
| 42 |
+
|
| 43 |
+
# 复制最新的数据库文件
|
| 44 |
+
# cp ../webui.db ./webui.db
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|
| 45 |
|
| 46 |
+
if [ -f "../webui.db" ]; then
|
| 47 |
+
cp ../webui.db ./webui.db
|
| 48 |
+
else
|
| 49 |
+
echo "数据库尚未初始化"
|
| 50 |
+
fi
|
| 51 |
+
|
| 52 |
+
# 检查是否有变化
|
| 53 |
+
if [[ -n $(git status -s) ]]; then
|
| 54 |
+
# 添加所有变更
|
| 55 |
+
git add webui.db
|
| 56 |
+
|
| 57 |
+
# 提交变更
|
| 58 |
+
git commit -m "Auto sync webui.db $(date '+%Y-%m-%d %H:%M:%S')"
|
| 59 |
+
|
| 60 |
+
# 推送到远程仓库
|
| 61 |
+
git push origin HEAD && {
|
| 62 |
+
echo "GitHub推送成功"
|
| 63 |
+
}|| {
|
| 64 |
+
echo "推送失败,等待重试..."
|
| 65 |
+
sleep 10
|
| 66 |
+
git push origin HEAD || {
|
| 67 |
+
echo "重试失败,放弃推送到Github。"
|
| 68 |
+
}
|
| 69 |
+
}
|
| 70 |
+
# 返回上级目录
|
| 71 |
+
cd ..
|
| 72 |
+
cd ..
|
| 73 |
+
|
| 74 |
+
# 2. 同步到 WebDAV
|
| 75 |
+
if [ -z "$WEBDAV_URL" ] || [ -z "$WEBDAV_USERNAME" ] || [ -z "$WEBDAV_PASSWORD" ]; then
|
| 76 |
+
echo "WebDAV 环境变量缺失,跳过 WebDAV 同步。"
|
| 77 |
+
else
|
| 78 |
+
echo "同步到 WebDAV..."
|
| 79 |
+
FILENAME="webui_$(date +'%m_%d').db"
|
| 80 |
+
# 检查是否存在要上传的文件
|
| 81 |
+
if [ -f ./data/webui.db ]; then
|
| 82 |
+
# 使用 curl 进行文件上传
|
| 83 |
+
curl -T ./data/webui.db --user "$WEBDAV_USERNAME:$WEBDAV_PASSWORD" "$WEBDAV_URL/$FILENAME" && {
|
| 84 |
+
echo "WebDAV 上传成功"
|
| 85 |
+
} || {
|
| 86 |
+
echo "WebDAV 上传失败,等待重试..."
|
| 87 |
+
sleep 10
|
| 88 |
+
curl -T ./data/webui.db --user "$WEBDAV_USERNAME:$WEBDAV_PASSWORD" "$WEBDAV_URL/$FILENAME" || {
|
| 89 |
+
echo "重试失败,放弃webdav上传。"
|
| 90 |
+
}
|
| 91 |
+
}
|
| 92 |
+
else
|
| 93 |
+
echo "未找到 webui.db 文件,跳过 WebDAV 同步"
|
| 94 |
+
fi
|
| 95 |
+
fi
|
| 96 |
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| 97 |
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|
|
| 98 |
else
|
| 99 |
+
# 返回上级目录
|
| 100 |
+
cd ..
|
| 101 |
+
cd ..
|
| 102 |
+
echo "GitHub: 没有检测到数据库变化"
|
| 103 |
fi
|
| 104 |
+
# 3. 等待统一的时间间隔
|
| 105 |
+
SYNC_INTERVAL=${SYNC_INTERVAL:-7200} # 默认间隔时间为 7200 秒
|
| 106 |
+
echo "当前时间 $(date '+%Y-%m-%d %H:%M:%S')"
|
| 107 |
+
echo "等待 ${SYNC_INTERVAL} 秒后进行下一次同步..."
|
| 108 |
+
sleep $SYNC_INTERVAL
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
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|
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|
|
|
|
|
|
|
|
| 109 |
|
| 110 |
+
done
|
|
|
|
|
|
|
| 111 |
}
|
| 112 |
|
| 113 |
# 后台启动同步进程
|
| 114 |
+
sync_data &
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
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