修改清理文件逻辑，改到main_start.py中

hls_downloader.py

@@ -1,6 +1,6 @@
 # hls_downloader.py
 # HLS分片TS下载管理进程
-# 功能：管理ffmpeg下载HLS直播流，支持异常重试、定时轮换、文件清理
+# 功能：管理ffmpeg下载HLS直播流，支持异常重试、定时轮换
 
 import os
 import sys
@@ -8,7 +8,6 @@ import json
 import argparse
 import signal
 import subprocess
-import shutil
 import time
 from datetime import datetime, timedelta
 from typing import Optional
@@ -35,7 +34,6 @@ def parse_args():
     parser.add_argument("--camera-id", required=True, type=int, help="Camera ID")
     parser.add_argument("--hls-root-path", required=True, help="HLS root path")
     parser.add_argument("--rotate-hour", required=True, type=int, help="Daily rotate hour (0-23)")
-    parser.add_argument("--retention-days", required=True, type=int, help="File retention days")
     parser.add_argument("--retry-interval", required=True, type=int, help="Retry interval seconds")
     return parser.parse_args()
 
@@ -152,37 +150,6 @@ def stop_ffmpeg():
     ffmpeg_process = None
 
 
-def cleanup_old_folders(hls_root_path: str, index_code: str, retention_days: int):
-    """清理过期的下载文件夹"""
-    try:
-        index_folder = os.path.join(hls_root_path, index_code)
-        if not os.path.exists(index_folder):
-            return
-        
-        cutoff_date = datetime.now() - timedelta(days=retention_days)
-        cutoff_str = cutoff_date.strftime("%Y%m%d")
-        
-        deleted_count = 0
-        for folder_name in os.listdir(index_folder):
-            folder_path = os.path.join(index_folder, folder_name)
-            if os.path.isdir(folder_path):
-                # 从文件夹名称解析日期 (yyyyMMdd_HHmmss)
-                try:
-                    date_str = folder_name.split("_")[0]
-                    if date_str < cutoff_str:
-                        shutil.rmtree(folder_path)
-                        logger.info(f"Deleted old folder: {folder_path}")
-                        deleted_count += 1
-                except Exception as e:
-                    logger.warning(f"Failed to parse folder date {folder_name}: {e}")
-        
-        if deleted_count > 0:
-            logger.info(f"Cleaned up {deleted_count} old folders")
-            
-    except Exception as e:
-        logger.error(f"Error cleaning up old folders: {e}")
-
-
 def get_next_rotate_time(rotate_hour: int) -> datetime:
     """计算下次轮换时间"""
     now = datetime.now()
@@ -243,7 +210,7 @@ def main():
     
     logger.info(f"HLS Downloader starting for camera: {args.camera_name} (index: {args.index_code})")
     logger.info(f"Config: hls_root={args.hls_root_path}, rotate_hour={args.rotate_hour}, "
-                f"retention_days={args.retention_days}, retry_interval={args.retry_interval}")
+                f"retry_interval={args.retry_interval}")
     
     # 计算下次轮换时间
     next_rotate_time = get_next_rotate_time(args.rotate_hour)
@@ -284,17 +251,14 @@ def main():
         now = datetime.now()
         if now >= next_rotate_time:
             logger.info("Daily rotation triggered")
-            
+
             # 停止当前ffmpeg
             stop_ffmpeg()
-            
-            # 清理旧文件
-            cleanup_old_folders(args.hls_root_path, args.index_code, args.retention_days)
-            
+
             # 计算下次轮换时间
             next_rotate_time = get_next_rotate_time(args.rotate_hour)
             logger.info(f"Next rotation scheduled at: {next_rotate_time}")
-            
+
             # 继续循环，会重新启动ffmpeg
             time.sleep(1)
             continue