Create sync_data.sh

sync_data.sh

@@ -0,0 +1,112 @@
+#!/bin/sh
+
+# 检查环境变量
+if [ -z "$WEBDAV_URL" ] || [ -z "$WEBDAV_USERNAME" ] || [ -z "$WEBDAV_PASSWORD" ]; then
+    echo "Starting without backup functionality - missing WEBDAV_URL, WEBDAV_USERNAME, or WEBDAV_PASSWORD"
+    exec java -jar /app/bin/reader.jar
+    exit 0
+fi
+
+# 设置备份路径
+WEBDAV_BACKUP_PATH=${WEBDAV_BACKUP_PATH:-""}
+FULL_WEBDAV_URL="${WEBDAV_URL}"
+if [ -n "$WEBDAV_BACKUP_PATH" ]; then
+    FULL_WEBDAV_URL="${WEBDAV_URL}/${WEBDAV_BACKUP_PATH}"
+fi
+
+# 下载最新备份并恢复
+restore_backup() {
+    python3 -c "
+import sys
+import os
+import tarfile
+import requests
+from webdav3.client import Client
+options = {
+    'webdav_hostname': '$FULL_WEBDAV_URL',
+    'webdav_login': '$WEBDAV_USERNAME',
+    'webdav_password': '$WEBDAV_PASSWORD'
+}
+client = Client(options)
+backups = [file for file in client.list() if file.endswith('.tar.gz') and file.startswith('reader_backup_')]
+if not backups:
+    print('No backup files found')
+    sys.exit()
+latest_backup = sorted(backups)[-1]
+with requests.get(f'$FULL_WEBDAV_URL/{latest_backup}', auth=('$WEBDAV_USERNAME', '$WEBDAV_PASSWORD'), stream=True) as r:
+    if r.status_code == 200:
+        with open(f'/tmp/{latest_backup}', 'wb') as f:
+            for chunk in r.iter_content(chunk_size=8192):
+                f.write(chunk)
+        
+        if os.path.exists(f'/tmp/{latest_backup}'):
+            with tarfile.open(f'/tmp/{latest_backup}', 'r:gz') as tar:
+                tar.extractall('/storage')
+            print(f'Successfully restored backup from {latest_backup}')
+        else:
+            print('Failed to download backup file')
+    else:
+        print(f'Failed to download backup: {r.status_code}')
+"
+}
+
+# 首次启动时下载最新备份
+echo "Downloading latest backup from WebDAV..."
+restore_backup
+
+# 同步函数
+sync_data() {
+    while true; do
+        echo "Starting sync process at $(date)"
+
+        if [ -d /storage ]; then
+            timestamp=$(date +%Y%m%d_%H%M%S)
+            backup_file="reader_backup_${timestamp}.tar.gz"
+
+            # 压缩数据目录
+            tar -czf "/tmp/${backup_file}" -C /storage .
+
+            # 上传新备份到WebDAV
+            curl -u "$WEBDAV_USERNAME:$WEBDAV_PASSWORD" -T "/tmp/${backup_file}" "$FULL_WEBDAV_URL/${backup_file}"
+            if [ $? -eq 0 ]; then
+                echo "Successfully uploaded ${backup_file} to WebDAV"
+            else
+                echo "Failed to upload ${backup_file} to WebDAV"
+            fi
+
+            # 清理旧备份文件
+            python3 -c "
+import sys
+from webdav3.client import Client
+options = {
+    'webdav_hostname': '$FULL_WEBDAV_URL',
+    'webdav_login': '$WEBDAV_USERNAME',
+    'webdav_password': '$WEBDAV_PASSWORD'
+}
+client = Client(options)
+backups = [file for file in client.list() if file.endswith('.tar.gz') and file.startswith('reader_backup_')]
+backups.sort()
+if len(backups) > 2:
+    to_delete = len(backups) - 2
+    for file in backups[:to_delete]:
+        client.clean(file)
+        print(f'Successfully deleted {file}.')
+else:
+    print('Only {} backups found, no need to clean.'.format(len(backups)))
+" 2>&1
+
+            rm -f "/tmp/${backup_file}"
+        else
+            echo "/storage directory does not exist, waiting for next sync..."
+        fi
+
+        SYNC_INTERVAL=${SYNC_INTERVAL:-600}
+        sleep $SYNC_INTERVAL
+    done
+}
+
+# 后台启动同步进程
+sync_data &
+
+# 启动应用程序主进程
+exec java -jar /app/bin/reader.jar