Update sync-script.sh

sync-script.sh

@@ -4,10 +4,10 @@ set -e
 WEBDAV_URL="${WEBDAV_URL}"
 WEBDAV_USERNAME="${WEBDAV_USERNAME}"
 WEBDAV_PASSWORD="${WEBDAV_PASSWORD}"
-DB_PATH="${DB_PATH:-/app/db}"
-BACKUP_PATH="${BACKUP_PATH:-/app/backup}"
-BACKUP_FILENAME="${BACKUP_FILENAME:-tgdrive_db_backup.tar.gz}"
-REMOTE_BACKUP_DIR="${REMOTE_BACKUP_DIR:-tgdrive_backup}"
+DB_PATH="${DB_PATH:-/app/db}" # 设置默认数据库路径
+BACKUP_PATH="${BACKUP_PATH:-/app/backup}" # 设置默认备份路径
+BACKUP_FILENAME="${BACKUP_FILENAME:-tgdrive_db_backup.tar.gz}" # 设置默认备份文件名
+REMOTE_BACKUP_DIR="${REMOTE_BACKUP_DIR:-tgdrive_backup}" # 设置默认远程备份目录
 CONFIG_FILE="/app/config/sync_config"
 PYTHON_CMD="/app/venv/bin/python3"
 
@@ -129,7 +129,7 @@ restore_db() {
             log "尝试备份当前数据库到 ${BACKUP_PATH}/db_before_restore_${timestamp}.tar.gz"
         fi
 
-        # 创建临时恢复目录.
+        # 创建临时恢复目录
         mkdir -p /tmp/tgdrive_restore 2>/dev/null || true
 
         # 解压备份文件到临时目录