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Add flag to disable LoRA monkey-patching #1

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Add flag to disable LoRA monkey-patching #1

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b581721
Add flag to disable LoRA monkey-patching
rvorias May 28, 2023
8294901
Merge branch 'takuma104:kohya-lora-loader' into kohya-lora-loader
rvorias May 31, 2023
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9 changes: 7 additions & 2 deletions src/diffusers/loaders.py
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Original file line number Diff line number Diff line change
Expand Up @@ -821,11 +821,13 @@ def load_lora_weights(self, pretrained_model_name_or_path_or_dict: Union[str, Di
subfolder (`str`, *optional*, defaults to `""`):
In case the relevant files are located inside a subfolder of the model repo (either remote in
huggingface.co or downloaded locally), you can specify the folder name here.

mirror (`str`, *optional*):
Mirror source to accelerate downloads in China. If you are from China and have an accessibility
problem, you can set this option to resolve it. Note that we do not guarantee the timeliness or safety.
Please refer to the mirror site for more information.
text_encoder_modify_forwards(`bool`, *optional*, defaults to `True`):
Whether or not to monkey-patch the forward pass of the text encoder to use the LoRA layers.
Monkey-patching should only happen once, so set this flag to False if you call this function more than once.

<Tip>

Expand All @@ -846,6 +848,8 @@ def load_lora_weights(self, pretrained_model_name_or_path_or_dict: Union[str, Di
subfolder = kwargs.pop("subfolder", None)
weight_name = kwargs.pop("weight_name", None)
use_safetensors = kwargs.pop("use_safetensors", None)
text_encoder_modify_forwards = kwargs.pop("text_encoder_modify_forwards", True)


if use_safetensors and not is_safetensors_available():
raise ValueError(
Expand Down Expand Up @@ -934,7 +938,8 @@ def load_lora_weights(self, pretrained_model_name_or_path_or_dict: Union[str, Di
attn_procs_text_encoder = self._load_text_encoder_attn_procs(
text_encoder_lora_state_dict, network_alpha=network_alpha
)
self._modify_text_encoder(attn_procs_text_encoder)
if text_encoder_modify_forwards:
self._modify_text_encoder(attn_procs_text_encoder)

# save lora attn procs of text encoder so that it can be easily retrieved
self._text_encoder_lora_attn_procs = attn_procs_text_encoder
Expand Down