adapt MODELSCOPE download (#17922)

python/sglang/srt/server_args.py

@@ -850,9 +850,14 @@ class ServerArgs:
             if not os.path.exists(self.model_path):
                 from modelscope import snapshot_download
 
-                self.model_path = snapshot_download(self.model_path)
+                self.model_path = snapshot_download(
+                    self.model_path, cache_dir=self.download_dir, revision=self.revision
+                )
                 self.tokenizer_path = snapshot_download(
-                    self.tokenizer_path, ignore_patterns=["*.bin", "*.safetensors"]
+                    self.tokenizer_path,
+                    cache_dir=self.download_dir,
+                    revision=self.revision,
+                    ignore_patterns=["*.bin", "*.safetensors"],
                 )
 
         # Mamba scheduler strategy