fix(log): update logger handlers without reset

app/log.py

@@ -1,5 +1,6 @@
 import inspect
 import logging
+import threading
 from logging.handlers import RotatingFileHandler
 from pathlib import Path
 from typing import Dict, Any, Optional
@@ -95,6 +96,8 @@ class LoggerManager:
     _loggers: Dict[str, Any] = {}
     # 默认日志文件名称
     _default_log_file = "moviepilot.log"
+    # 线程锁
+    _lock = threading.Lock()
 
     @staticmethod
     def __get_caller():
@@ -133,7 +136,7 @@ class LoggerManager:
     @staticmethod
     def __setup_logger(log_file: str):
         """
-        设置日志
+        初始化日志实例
 
         :param log_file：日志文件相对路径
         """
@@ -143,13 +146,8 @@ class LoggerManager:
         # 创建新实例
         _logger = logging.getLogger(log_file_path.stem)
 
-        if log_settings.DEBUG:
+        # 设置日志级别
-            _logger.setLevel(logging.DEBUG)
+        _logger.setLevel(LoggerManager.__get_log_level())
-
-        # 全局日志等级
-        else:
-            loglevel = getattr(logging, log_settings.LOG_LEVEL.upper(), logging.INFO)
-            _logger.setLevel(loglevel)
 
         # 移除已有的 handler，避免重复添加
         for handler in _logger.handlers:
@@ -179,16 +177,42 @@ class LoggerManager:
         """
         更新日志实例
         """
-        _new_loggers: Dict[str, Any] = {}
+        with LoggerManager._lock:
-        for log_file, _logger in self._loggers.items():
+            for _logger in self._loggers.values():
-            # 移除已有的 handler，避免重复添加
+                self.__update_logger_handlers(_logger)
-            for handler in _logger.handlers:
-                _logger.removeHandler(handler)
-            # 重新设置日志实例
-            _new_logger = self.__setup_logger(log_file=log_file)
-            _new_loggers[log_file] = _new_logger
 
-        self._loggers = _new_loggers
+    @staticmethod
+    def __update_logger_handlers(_logger: logging.Logger):
+        """
+        更新 Logger 的 handler 配置
+
+        :param _logger: 需要更新的 Logger 实例
+        """
+        # 更新现有 handler
+        for handler in _logger.handlers:
+            try:
+                if isinstance(handler, RotatingFileHandler):
+                    # 更新最大文件大小和备份数量
+                    handler.maxBytes = log_settings.LOG_MAX_FILE_SIZE_BYTES
+                    handler.backupCount = log_settings.LOG_BACKUP_COUNT
+                    # 更新日志文件输出格式
+                    file_formatter = CustomFormatter(log_settings.LOG_FILE_FORMAT)
+                    handler.setFormatter(file_formatter)
+                elif isinstance(handler, logging.StreamHandler):
+                    # 更新控制台输出格式
+                    console_formatter = CustomFormatter(log_settings.LOG_CONSOLE_FORMAT)
+                    handler.setFormatter(console_formatter)
+            except Exception as e:
+                logger.error(f"Failed to update handler: {handler}. Error: {e}")
+        # 更新日志级别
+        _logger.setLevel(LoggerManager.__get_log_level())
+
+    @staticmethod
+    def __get_log_level():
+        """
+        获取当前日志级别
+        """
+        return logging.DEBUG if log_settings.DEBUG else getattr(logging, log_settings.LOG_LEVEL.upper(), logging.INFO)
 
     def logger(self, method: str, msg: str, *args, **kwargs):
         """