Merge branch 'main' into lstein-improve-ti-frontend

ldm/invoke/CLI.py

@@ -573,7 +573,7 @@ def import_model(model_path:str, gen, opt, completer):
     
     if model_path.startswith(('http:','https:','ftp:')):
         model_name = import_ckpt_model(model_path, gen, opt, completer)
-    elif os.path.exists(model_path) and model_path.endswith('.ckpt') and os.path.isfile(model_path):
+    elif os.path.exists(model_path) and model_path.endswith(('.ckpt','.safetensors')) and os.path.isfile(model_path):
         model_name = import_ckpt_model(model_path, gen, opt, completer)        
     elif re.match('^[\w.+-]+/[\w.+-]+$',model_path):
         model_name = import_diffuser_model(model_path, gen, opt, completer)
@@ -627,9 +627,9 @@ def import_ckpt_model(path_or_url:str, gen, opt, completer)->str:
         model_description=default_description
     )
     config_file = None
-
+    default = Path(Globals.root,'configs/stable-diffusion/v1-inference.yaml')
     completer.complete_extensions(('.yaml','.yml'))
-    completer.set_line('configs/stable-diffusion/v1-inference.yaml')
+    completer.set_line(str(default))
     done = False
     while not done:
         config_file = input('Configuration file for this model: ').strip()

ldm/invoke/ckpt_generator/base.py

@@ -56,9 +56,11 @@ class CkptGenerator():
                  image_callback=None, step_callback=None, threshold=0.0, perlin=0.0,
                  safety_checker:dict=None,
                  attention_maps_callback = None,
+                 free_gpu_mem: bool=False,
                  **kwargs):
         scope = choose_autocast(self.precision)
         self.safety_checker = safety_checker
+        self.free_gpu_mem = free_gpu_mem
         attention_maps_images = []
         attention_maps_callback = lambda saver: attention_maps_images.append(saver.get_stacked_maps_image())
         make_image = self.get_make_image(

ldm/invoke/ckpt_to_diffuser.py

@@ -21,7 +21,7 @@ import os
 import re
 import torch
 from pathlib import Path
-from ldm.invoke.globals import Globals
+from ldm.invoke.globals import Globals, global_cache_dir
 from safetensors.torch import load_file
 
 try:
@@ -637,7 +637,7 @@ def convert_ldm_bert_checkpoint(checkpoint, config):
 
 
 def convert_ldm_clip_checkpoint(checkpoint):
-    text_model = CLIPTextModel.from_pretrained("openai/clip-vit-large-patch14")
+    text_model = CLIPTextModel.from_pretrained("openai/clip-vit-large-patch14",cache_dir=global_cache_dir('hub'))
 
     keys = list(checkpoint.keys())
 
@@ -677,7 +677,8 @@ textenc_pattern = re.compile("|".join(protected.keys()))
 
 
 def convert_paint_by_example_checkpoint(checkpoint):
-    config = CLIPVisionConfig.from_pretrained("openai/clip-vit-large-patch14")
+    cache_dir = global_cache_dir('hub')
+    config = CLIPVisionConfig.from_pretrained("openai/clip-vit-large-patch14",cache_dir=cache_dir)
     model = PaintByExampleImageEncoder(config)
 
     keys = list(checkpoint.keys())
@@ -744,7 +745,8 @@ def convert_paint_by_example_checkpoint(checkpoint):
 
 
 def convert_open_clip_checkpoint(checkpoint):
-    text_model = CLIPTextModel.from_pretrained("stabilityai/stable-diffusion-2", subfolder="text_encoder")
+    cache_dir=global_cache_dir('hub')
+    text_model = CLIPTextModel.from_pretrained("stabilityai/stable-diffusion-2", subfolder="text_encoder", cache_dir=cache_dir)
 
     keys = list(checkpoint.keys())
 
@@ -795,6 +797,7 @@ def convert_ckpt_to_diffuser(checkpoint_path:str,
                              ):
 
     checkpoint = load_file(checkpoint_path) if Path(checkpoint_path).suffix == '.safetensors' else torch.load(checkpoint_path)
+    cache_dir = global_cache_dir('hub')
 
     # Sometimes models don't have the global_step item
     if "global_step" in checkpoint:
@@ -904,7 +907,7 @@ def convert_ckpt_to_diffuser(checkpoint_path:str,
 
     if model_type == "FrozenOpenCLIPEmbedder":
         text_model = convert_open_clip_checkpoint(checkpoint)
-        tokenizer = CLIPTokenizer.from_pretrained("stabilityai/stable-diffusion-2", subfolder="tokenizer")
+        tokenizer = CLIPTokenizer.from_pretrained("stabilityai/stable-diffusion-2", subfolder="tokenizer",cache_dir=global_cache_dir('diffusers'))
         pipe = StableDiffusionPipeline(
             vae=vae,
             text_encoder=text_model,
@@ -917,8 +920,8 @@ def convert_ckpt_to_diffuser(checkpoint_path:str,
         )
     elif model_type == "PaintByExample":
         vision_model = convert_paint_by_example_checkpoint(checkpoint)
-        tokenizer = CLIPTokenizer.from_pretrained("openai/clip-vit-large-patch14")
-        feature_extractor = AutoFeatureExtractor.from_pretrained("CompVis/stable-diffusion-safety-checker")
+        tokenizer = CLIPTokenizer.from_pretrained("openai/clip-vit-large-patch14",cache_dir=cache_dir)
+        feature_extractor = AutoFeatureExtractor.from_pretrained("CompVis/stable-diffusion-safety-checker",cache_dir=cache_dir)
         pipe = PaintByExamplePipeline(
             vae=vae,
             image_encoder=vision_model,
@@ -929,9 +932,9 @@ def convert_ckpt_to_diffuser(checkpoint_path:str,
         )
     elif model_type in ['FrozenCLIPEmbedder','WeightedFrozenCLIPEmbedder']:
         text_model = convert_ldm_clip_checkpoint(checkpoint)
-        tokenizer = CLIPTokenizer.from_pretrained("openai/clip-vit-large-patch14")
-        safety_checker = StableDiffusionSafetyChecker.from_pretrained("CompVis/stable-diffusion-safety-checker")
-        feature_extractor = AutoFeatureExtractor.from_pretrained("CompVis/stable-diffusion-safety-checker")
+        tokenizer = CLIPTokenizer.from_pretrained("openai/clip-vit-large-patch14",cache_dir=cache_dir)
+        safety_checker = StableDiffusionSafetyChecker.from_pretrained("CompVis/stable-diffusion-safety-checker",cache_dir=cache_dir)
+        feature_extractor = AutoFeatureExtractor.from_pretrained("CompVis/stable-diffusion-safety-checker",cache_dir=cache_dir)
         pipe = StableDiffusionPipeline(
             vae=vae,
             text_encoder=text_model,
@@ -944,7 +947,7 @@ def convert_ckpt_to_diffuser(checkpoint_path:str,
     else:
         text_config = create_ldm_bert_config(original_config)
         text_model = convert_ldm_bert_checkpoint(checkpoint, text_config)
-        tokenizer = BertTokenizerFast.from_pretrained("bert-base-uncased")
+        tokenizer = BertTokenizerFast.from_pretrained("bert-base-uncased",cache_dir=cache_dir)
         pipe = LDMTextToImagePipeline(vqvae=vae, bert=text_model, tokenizer=tokenizer, unet=unet, scheduler=scheduler)
 
     pipe.save_pretrained(

ldm/invoke/concepts_lib.py

@@ -59,7 +59,7 @@ class HuggingFaceConceptsLibrary(object):
         be downloaded.
         '''
         if not concept_name in self.list_concepts():
-            print(f'This concept is not known to the Hugging Face library. Generation will continue without the concept.')
+            print(f'This concept is not a local embedding trigger, nor is it a HuggingFace concept. Generation will continue without the concept.')
             return None
         return self.get_concept_file(concept_name.lower(),'learned_embeds.bin')
 
@@ -115,13 +115,19 @@ class HuggingFaceConceptsLibrary(object):
             return self.trigger_to_concept(match.group(1)) or f'<{match.group(1)}>'
         return self.match_trigger.sub(do_replace, prompt)
 
-    def replace_concepts_with_triggers(self, prompt:str, load_concepts_callback: Callable[[list], any])->str:
+    def replace_concepts_with_triggers(self,
+                                       prompt:str,
+                                       load_concepts_callback: Callable[[list], any],
+                                       excluded_tokens:list[str])->str:
         '''
         Given a prompt string that contains `<concept_name>` tags, replace
         these tags with the appropriate trigger.
 
         If any `<concept_name>` tags are found, `load_concepts_callback()` is called with a list
         of `concepts_name` strings.
+
+        `excluded_tokens` are any tokens that should not be replaced, typically because they
+        are trigger tokens from a locally-loaded embedding.
         '''
         concepts = self.match_concept.findall(prompt)
         if not concepts:
@@ -129,6 +135,8 @@ class HuggingFaceConceptsLibrary(object):
         load_concepts_callback(concepts)
 
         def do_replace(match)->str:
+            if excluded_tokens and f'<{match.group(1)}>' in excluded_tokens:
+                return f'<{match.group(1)}>'
             return self.concept_to_trigger(match.group(1)) or f'<{match.group(1)}>'
         return self.match_concept.sub(do_replace, prompt)
 

ldm/invoke/generator/base.py

@@ -62,9 +62,11 @@ class Generator:
     def generate(self,prompt,init_image,width,height,sampler, iterations=1,seed=None,
                  image_callback=None, step_callback=None, threshold=0.0, perlin=0.0,
                  safety_checker:dict=None,
+                 free_gpu_mem: bool=False,
                  **kwargs):
         scope = nullcontext
         self.safety_checker = safety_checker
+        self.free_gpu_mem = free_gpu_mem
         attention_maps_images = []
         attention_maps_callback = lambda saver: attention_maps_images.append(saver.get_stacked_maps_image())
         make_image = self.get_make_image(

ldm/invoke/globals.py

@@ -29,6 +29,7 @@ else:
 
 # Where to look for the initialization file
 Globals.initfile = 'invokeai.init'
+Globals.models_file = 'models.yaml'
 Globals.models_dir = 'models'
 Globals.config_dir = 'configs'
 Globals.autoscan_dir = 'weights'
@@ -49,6 +50,9 @@ Globals.disable_xformers = False
 # whether we are forcing full precision
 Globals.full_precision = False
 
+def global_config_file()->Path:
+    return Path(Globals.root, Globals.config_dir, Globals.models_file)
+
 def global_config_dir()->Path:
     return Path(Globals.root, Globals.config_dir)
 

ldm/invoke/merge_diffusers.py

@@ -0,0 +1,62 @@
+'''
+ldm.invoke.merge_diffusers exports a single function call merge_diffusion_models()
+used to merge 2-3 models together and create a new InvokeAI-registered diffusion model.
+'''
+import os
+from typing import List
+from diffusers import DiffusionPipeline
+from ldm.invoke.globals import global_config_file, global_models_dir, global_cache_dir
+from ldm.invoke.model_manager import ModelManager
+from omegaconf import OmegaConf
+
+def merge_diffusion_models(models:List['str'],
+                           merged_model_name:str,
+                           alpha:float=0.5,
+                           interp:str=None,
+                           force:bool=False,
+                           **kwargs):
+    '''
+    models - up to three models, designated by their InvokeAI models.yaml model name
+    merged_model_name = name for new model
+    alpha  - The interpolation parameter. Ranges from 0 to 1.  It affects the ratio in which the checkpoints are merged. A 0.8 alpha
+               would mean that the first model checkpoints would affect the final result far less than an alpha of 0.2
+    interp - The interpolation method to use for the merging. Supports "sigmoid", "inv_sigmoid", "add_difference" and None.
+               Passing None uses the default interpolation which is weighted sum interpolation. For merging three checkpoints, only "add_difference" is supported.
+    force  - Whether to ignore mismatch in model_config.json for the current models. Defaults to False.
+
+    **kwargs - the default DiffusionPipeline.get_config_dict kwargs:
+         cache_dir, resume_download, force_download, proxies, local_files_only, use_auth_token, revision, torch_dtype, device_map
+    '''
+    config_file = global_config_file()
+    model_manager = ModelManager(OmegaConf.load(config_file))
+    for mod in models:
+        assert (mod in model_manager.model_names()), f'** Unknown model "{mod}"'
+        assert (model_manager.model_info(mod).get('format',None) == 'diffusers'), f'** {mod} is not a diffusers model. It must be optimized before merging.'
+    model_ids_or_paths = [model_manager.model_name_or_path(x) for x in models]
+
+    pipe = DiffusionPipeline.from_pretrained(model_ids_or_paths[0],
+                                             cache_dir=kwargs.get('cache_dir',global_cache_dir()),
+                                             custom_pipeline='checkpoint_merger')
+    merged_pipe = pipe.merge(pretrained_model_name_or_path_list=model_ids_or_paths,
+                             alpha=alpha,
+                             interp=interp,
+                             force=force,
+                             **kwargs)
+    dump_path = global_models_dir() / 'merged_diffusers'
+    os.makedirs(dump_path,exist_ok=True)
+    dump_path = dump_path / merged_model_name
+    merged_pipe.save_pretrained (
+        dump_path,
+        safe_serialization=1
+    )
+    model_manager.import_diffuser_model(
+        dump_path,
+        model_name = merged_model_name,
+        description = f'Merge of models {", ".join(models)}'
+    )
+    print('REMINDER: When PR 2369 is merged, replace merge_diffusers.py line 56 with vae= argument to impormodel()')
+    if vae := model_manager.config[models[0]].get('vae',None):
+        print(f'>> Using configured VAE assigned to {models[0]}')
+        model_manager.config[merged_model_name]['vae'] = vae
+
+    model_manager.commit(config_file)

ldm/invoke/model_manager.py

@@ -37,7 +37,11 @@ from ldm.util import instantiate_from_config, ask_user
 DEFAULT_MAX_MODELS=2
 
 class ModelManager(object):
-    def __init__(self, config:OmegaConf, device_type:str, precision:str, max_loaded_models=DEFAULT_MAX_MODELS):
+    def __init__(self,
+                 config:OmegaConf,
+                 device_type:str='cpu',
+                 precision:str='float16',
+                 max_loaded_models=DEFAULT_MAX_MODELS):
         '''
         Initialize with the path to the models.yaml config file,
         the torch device type, and precision. The optional
@@ -143,7 +147,7 @@ class ModelManager(object):
         Return true if this is a legacy (.ckpt) model
         '''
         info = self.model_info(model_name)
-        if 'weights' in info and info['weights'].endswith('.ckpt'):
+        if 'weights' in info and info['weights'].endswith(('.ckpt','.safetensors')):
             return True
         return False
 
@@ -362,8 +366,14 @@ class ModelManager(object):
                 vae = os.path.normpath(os.path.join(Globals.root,vae))
             if os.path.exists(vae):
                 print(f'   | Loading VAE weights from: {vae}')
-                vae_ckpt = torch.load(vae, map_location="cpu")
-                vae_dict = {k: v for k, v in vae_ckpt["state_dict"].items() if k[0:4] != "loss"}
+                vae_ckpt = None
+                vae_dict = None
+                if vae.endswith('.safetensors'):
+                    vae_ckpt = safetensors.torch.load_file(vae)
+                    vae_dict = {k: v for k, v in vae_ckpt.items() if k[0:4] != "loss"}
+                else:
+                    vae_ckpt = torch.load(vae, map_location="cpu")
+                    vae_dict = {k: v for k, v in vae_ckpt['state_dict'].items() if k[0:4] != "loss"}
                 model.first_stage_model.load_state_dict(vae_dict, strict=False)
             else:
                 print(f'   | VAE file {vae} not found. Skipping.')
@@ -536,7 +546,7 @@ class ModelManager(object):
             format='diffusers',
         )
         if isinstance(repo_or_path,Path) and repo_or_path.exists():
-            new_config.update(path=repo_or_path)
+            new_config.update(path=str(repo_or_path))
         else:
             new_config.update(repo_id=repo_or_path)