Update app.py

app.py

@@ -36,26 +36,23 @@ def refresh_index():
     
     while True:
         try:
-            # 检查是否有更新
             current_time = time.time()
             if current_time - last_updated > index_refresh_interval:
                 print("🔄 检查索引更新...")
                 
-                # 获取最新元数据
+                # 强制下载最新文件
                 METADATA_PATH = hf_hub_download(
                     repo_id="GOGO198/GOGO_rag_index",
                     filename="metadata.csv",
                     cache_dir=CACHE_DIR,
                     token=os.getenv("HF_TOKEN"),
-                    force_download=True  # 强制更新
+                    force_download=True
                 )
                 
-                # 检查文件修改时间
                 file_mtime = os.path.getmtime(METADATA_PATH)
                 if file_mtime > last_updated:
                     print("📥 检测到新索引，重新加载...")
                     
-                    # 重新加载索引
                     INDEX_PATH = hf_hub_download(
                         repo_id="GOGO198/GOGO_rag_index",
                         filename="faiss_index.bin",
@@ -66,7 +63,6 @@ def refresh_index():
                     new_index = faiss.read_index(INDEX_PATH)
                     new_metadata = pd.read_csv(METADATA_PATH)
                     
-                    # 原子替换
                     index = new_index
                     metadata = new_metadata
                     last_updated = file_mtime
@@ -76,8 +72,7 @@ def refresh_index():
         except Exception as e:
             print(f"索引更新失败: {str(e)}")
         
-        # 每30秒检查一次
-        time.sleep(30)
+        time.sleep(30)  # 每30秒检查
 
 def load_resources():
     """加载所有必要资源（768维专用）"""