minor fixes

server/pack_manager.py

@@ -5,6 +5,8 @@ from pathlib import Path
 import json
 from typing import Optional, Dict
 import structlog
+import asyncio
+import aiofiles
 
 from models import PackMeta, FileEntry
 
@@ -33,9 +35,9 @@ def calculate_sha256_sync(file_path: Path) -> str:
     return hash_sha.hexdigest()
 
 async def calculate_sha256(file_path: Path) -> str:
-    """Calculate SHA256 hash of a file (async wrapper)"""
-    # Используем синхронную версию для простоты
-    return calculate_sha256_sync(file_path)
+    """Calculate SHA256 hash of a file (async)"""
+    loop = asyncio.get_running_loop()
+    return await loop.run_in_executor(None, calculate_sha256_sync, file_path)
 
 async def scan_pack(pack_name: str, force_rescan: bool = False) -> PackMeta:
     """Scan pack directory and update manifest if needed"""
@@ -51,11 +53,11 @@ async def scan_pack(pack_name: str, force_rescan: bool = False) -> PackMeta:
     if not force_rescan and pack_name in _manifest_cache:
         return _manifest_cache[pack_name]
 
-    # Load existing meta if available (синхронно)
+    # Load existing meta if available
     if meta_path.exists():
         try:
-            with open(meta_path, 'r', encoding='utf-8') as f:
-                data = json.load(f)
+            async with aiofiles.open(meta_path, 'r', encoding='utf-8') as f:
+                data = json.loads(await f.read())
                 current_meta = PackMeta.model_validate(data)
         except Exception as e:
             logger.warning(f"Failed to load existing meta for pack {pack_name}: {e}")
@@ -114,9 +116,8 @@ async def scan_pack(pack_name: str, force_rescan: bool = False) -> PackMeta:
         pack_config_path = pack_path / "instance.json"
         if pack_config_path.exists():
             try:
-                # Синхронное чтение конфига
-                with open(pack_config_path, 'r', encoding='utf-8') as f:
-                    config = json.load(f)
+                async with aiofiles.open(pack_config_path, 'r', encoding='utf-8') as f:
+                    config = json.loads(await f.read())
                     minecraft_version = config.get("minecraftVersion", minecraft_version)
                     loader_type = config.get("loaderType", loader_type)
                     loader_version = config.get("loaderVersion")
@@ -137,9 +138,8 @@ async def scan_pack(pack_name: str, force_rescan: bool = False) -> PackMeta:
             asset_index=asset_index
         )
         
-        # Save to disk (синхронно)
-        with open(meta_path, 'w', encoding='utf-8') as f:
-            f.write(new_meta.model_dump_json(indent=2))
+        async with aiofiles.open(meta_path, 'w', encoding='utf-8') as f:
+            await f.write(new_meta.model_dump_json(indent=2))
         
         # Update cache
         _manifest_cache[pack_name] = new_meta