further tweaks to model management

- Work around problem with OmegaConf.update() that prevented model names
  from containing periods.
- Fix logic bug in !delete_model that didn't check for existence of model
  in config file.

configs/INITIAL_MODELS.yaml

@@ -1,14 +1,14 @@
-stable-diffusion-2_1-768:
+stable-diffusion-2.1-768:
    description: Stable Diffusion version 2.1 diffusers model, trained on 768x768 images (5.21 GB)
    repo_id: stabilityai/stable-diffusion-2-1
    format: diffusers
    recommended: True
-stable-diffusion-2_1-base:
+stable-diffusion-2.1-base:
    description: Stable Diffusion version 2.1 diffusers base model, trained on 512x512 images (5.21 GB)
    repo_id: stabilityai/stable-diffusion-2-1-base
    format: diffusers
    recommended: False
-stable-diffusion-1_5:
+stable-diffusion-1.5:
    description: Stable Diffusion version 1.5 weight file (4.27 GB)
    repo_id: runwayml/stable-diffusion-v1-5
    format: diffusers
@@ -16,7 +16,7 @@ stable-diffusion-1_5:
    default: True
    vae:
      repo_id: stabilityai/sd-vae-ft-mse
-stable-diffusion-1_4:
+stable-diffusion-1.4:
    description: The original Stable Diffusion version 1.4 weight file (4.27 GB)
    repo_id: CompVis/stable-diffusion-v1-4
    recommended: False
@@ -25,7 +25,7 @@ stable-diffusion-1_4:
       repo_id: stabilityai/sd-vae-ft-mse
    width: 512
    height: 512
-inpainting-1_5:
+inpainting-1.5:
    description: RunwayML SD 1.5 model optimized for inpainting (ckpt version) (4.27 GB)
    repo_id: runwayml/stable-diffusion-inpainting
    config: v1-inpainting-inference.yaml
@@ -37,12 +37,12 @@ inpainting-1_5:
    recommended: True
    width: 512
    height: 512
-waifu-diffusion-1_4:
+waifu-diffusion-1.4:
   description: Latest waifu diffusion 1.4 (diffusers version)
   format: diffusers
   repo_id: hakurei/waifu-diffusion
   recommended: True
-waifu-diffusion-1_3:
+waifu-diffusion-1.3:
    description: Stable Diffusion 1.4 fine tuned on anime-styled images (ckpt version) (4.27 GB)
    repo_id: hakurei/waifu-diffusion-v1-3
    config: v1-inference.yaml
@@ -54,7 +54,7 @@ waifu-diffusion-1_3:
    recommended: False
    width: 512
    height: 512
-trinart-2_0:
+trinart-2.0:
    description: An SD model finetuned with ~40,000 assorted high resolution manga/anime-style pictures (2.13 GB)
    repo_id: naclbit/trinart_stable_diffusion_v2
    format: diffusers
@@ -73,19 +73,19 @@ trinart_characters-2_0:
    recommended: False
    width: 512
    height: 512
-anything-4_0:
+anything-4.0:
    description: High-quality, highly detailed anime style images with just a few prompts
    format: diffusers
    repo_id: andite/anything-v4.0
    recommended: False
-papercut-1_0:
+papercut-1.0:
    description: SD 1.5 fine-tuned for papercut art (use "PaperCut" in your prompts) (2.13 GB)
    repo_id: Fictiverse/Stable_Diffusion_PaperCut_Model
    format: diffusers
    vae:
      repo_id: stabilityai/sd-vae-ft-mse
    recommended: False
-voxel_art-1_0:
+voxel_art-1.0:
    description: Stable Diffusion trained on voxel art (use "VoxelArt" in your prompts) (4.27 GB)
    repo_id: Fictiverse/Stable_Diffusion_VoxelArt_Model
    config: v1-inference.yaml

ldm/invoke/CLI.py

@@ -613,8 +613,6 @@ def import_diffuser_model(path_or_repo:str, gen, opt, completer)->str:
             description = model_description):
         print('** model failed to import')
         return None
-    if input('Make this the default model? [n] ').startswith(('y','Y')):
-        manager.set_default_model(model_name)
     return model_name
 
 def import_ckpt_model(path_or_url:str, gen, opt, completer)->str:
@@ -647,8 +645,6 @@ def import_ckpt_model(path_or_url:str, gen, opt, completer)->str:
         print('** model failed to import')
         return None
 
-    if input('Make this the default model? [n] ').startswith(('y','Y')):
-        manager.set_model_default(model_name)
     return model_name
 
 def _verify_load(model_name:str, gen)->bool:
@@ -726,6 +722,9 @@ def del_config(model_name:str, gen, opt, completer):
     if model_name == current_model:
         print("** Can't delete active model. !switch to another model first. **")
         return
+    if model_name not in gen.model_manager.config:
+        print(f"** Unknown model {model_name}")
+        return
     gen.model_manager.del_model(model_name)
     gen.model_manager.commit(opt.conf)
     print(f'** {model_name} deleted')

ldm/invoke/model_manager.py

@@ -230,6 +230,9 @@ class ModelManager(object):
         Delete the named model.
         '''
         omega = self.config
+        if model_name not in omega:
+            print(f'** Unknown model {model_name}')
+            return
         del omega[model_name]
         if model_name in self.stack:
             self.stack.remove(model_name)
@@ -253,9 +256,8 @@ class ModelManager(object):
 
         assert (clobber or model_name not in omega), f'attempt to overwrite existing model definition "{model_name}"'
 
-        if model_name not in omega:
-            omega[model_name] = dict()
-        OmegaConf.update(omega,model_name,model_attributes,merge=False)
+        omega[model_name] = model_attributes
+        
         if 'weights' in omega[model_name]:
             omega[model_name]['weights'].replace('\\','/')