option: reduce connecting to huggingface

for assets if local cache is available
note: enabling this with prevent the assets from being updated

modules/patch_hf_hub_download.py

@@ -0,0 +1,41 @@
+from modules.patches import patch
+from modules.errors import report
+from inspect import signature
+from functools import wraps
+
+try:
+    from huggingface_hub.utils import LocalEntryNotFoundError
+    from huggingface_hub import file_download
+
+    def try_local_files_only(func):
+        if (param := signature(func).parameters.get('local_files_only', None)) and not param.kind == param.KEYWORD_ONLY:
+            raise ValueError(f'{func.__name__} does not have keyword-only parameter "local_files_only"')
+
+        @wraps(func)
+        def wrapper(*args, **kwargs):
+            try:
+                from modules.shared import opts
+                try_offline_mode = not kwargs.get('local_files_only') and opts.hd_dl_local_first
+            except Exception:
+                report('Error in try_local_files_only - skip try_local_files_only', exc_info=True)
+                try_offline_mode = False
+
+            if try_offline_mode:
+                try:
+                    return func(*args, **{**kwargs, 'local_files_only': True})
+                except LocalEntryNotFoundError:
+                    pass
+                except Exception:
+                    report('Unexpected exception in try_local_files_only - retry without patch', exc_info=True)
+
+            return func(*args, **kwargs)
+
+        return wrapper
+
+    try:
+        patch(__name__, file_download, 'hf_hub_download', try_local_files_only(file_download.hf_hub_download))
+    except RuntimeError:
+        pass  # already patched
+
+except Exception:
+    report('Error patching hf_hub_download', exc_info=True)