update it with header

Signed-off-by: reidliu41 <[email protected]>

Author: reidliu41

vllm/transformers_utils/utils.py

@@ -20,18 +20,16 @@ def check_gguf_file(model: Union[str, PathLike]) -> bool:
     model = Path(model)
     if not model.is_file():
         return False
-
-    import struct
-
-    from gguf.constants import GGUF_MAGIC
+    elif model.suffix == ".gguf":
+        return True
 
     try:
         with model.open("rb") as f:
-            first_4_bytes = f.read(4)
-            if len(first_4_bytes) < 4:
+            header = f.read(4)
+            if len(header) < 4:
                 return False
 
-        return struct.unpack("<I", first_4_bytes)[0] == GGUF_MAGIC
+        return header == b"GGUF"
     except Exception as e:
         logger.debug("Error reading file %s: %s", model, e)
         return False