feat: Support customization of the model download path via extra_model_paths.yaml.

example
```
some_extra_path:
   base_path: /path/to/base
   download_model_base: models
   checkpoints: models/checkpoints
   text_encoders: models/text_encoders
   vae: models/vae
   loras: models/loras
   controlnet: models/controlnet
   clip_vision: models/clip_vision
   gligen: models/gligen
   upscale_models: models/upscale_models
   embeddings: models/embeddings
   diffusion_models: models/diffusion_models
   custom_nodes: custom_nodes
   is_default: True
```

glob/manager_core.py

@@ -23,7 +23,7 @@ sys.path.append(glob_path)
 import cm_global
 from manager_util import *
 
-version = [2, 53]
+version = [2, 54]
 version_str = f"V{version[0]}.{version[1]}" + (f'.{version[2]}' if len(version) > 2 else '')
 
 

glob/manager_server.py

@@ -248,23 +248,45 @@ import urllib.request
 
 
 def get_model_dir(data):
+    if 'download_model_base' in folder_paths.folder_names_and_paths:
+        models_base = folder_paths.folder_names_and_paths['download_model_base'][0][0]
+    else:
+        models_base = folder_paths.models_dir
+
+    def resolve_custom_node(save_path):
+        save_path = save_path[13:] # remove 'custom_nodes/'
+        repo_name = os.path.dirname(save_path) # get custom node repo name
+        repo_path = core.lookup_installed_custom_nodes(repo_name)
+        if repo_path is not None and repo_path[0]:
+            # Returns the retargeted path based on the actually installed repository
+            return os.path.join(os.path.dirname(repo_path[1]), save_path)
+        else:
+            return None
+
     if data['save_path'] != 'default':
         if '..' in data['save_path'] or data['save_path'].startswith('/'):
             print(f"[WARN] '{data['save_path']}' is not allowed path. So it will be saved into 'models/etc'.")
-            base_model = os.path.join(folder_paths.models_dir, "etc")
+            base_model = os.path.join(models_base, "etc")
         else:
             if data['save_path'].startswith("custom_nodes"):
-                base_model = os.path.join(core.comfy_path, data['save_path'])
+                base_model = resolve_custom_node(data['save_path'])
+                if base_model is None:
+                    print(f"[ComfyUI-Manager] The target custom node for model download is not installed: {data['save_path']}")
+                    return None
             else:
-                base_model = os.path.join(folder_paths.models_dir, data['save_path'])
+                base_model = os.path.join(models_base, data['save_path'])
     else:
         model_type = data['type']
         if model_type == "checkpoints" or model_type == "checkpoint":
             base_model = folder_paths.folder_names_and_paths["checkpoints"][0][0]
         elif model_type == "unclip":
             base_model = folder_paths.folder_names_and_paths["checkpoints"][0][0]
-        elif model_type == "clip":
+        elif model_type == "clip" or model_type == "text_encoders":
-            base_model = folder_paths.folder_names_and_paths["clip"][0][0]
+            if folder_paths.folder_names_and_paths.get("text_encoders"):
+                base_model = folder_paths.folder_names_and_paths["text_encoders"][0][0]
+            else:
+                print(f"[ComfyUI-Manager] Your ComfyUI is outdated version.")
+                base_model = folder_paths.folder_names_and_paths["clip"][0][0]  # outdated version
         elif model_type == "VAE":
             base_model = folder_paths.folder_names_and_paths["vae"][0][0]
         elif model_type == "lora":
@@ -290,14 +312,17 @@ def get_model_dir(data):
                 print(f"[ComfyUI-Manager] Your ComfyUI is outdated version.")
                 base_model = folder_paths.folder_names_and_paths["unet"][0][0]  # outdated version
         else:
-            base_model = os.path.join(folder_paths.models_dir, "etc")
+            base_model = os.path.join(models_base, "etc")
 
     return base_model
 
 
 def get_model_path(data):
     base_model = get_model_dir(data)
-    return os.path.join(base_model, data['filename'])
+    if base_model is None:
+        return None
+    else:
+        return os.path.join(base_model, data['filename'])
 
 
 def check_custom_nodes_installed(json_obj, do_fetch=False, do_update_check=True, do_update=False):

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-manager"
 description = "ComfyUI-Manager provides features to install and manage custom nodes for ComfyUI, as well as various functionalities to assist with ComfyUI."
-version = "2.53"
+version = "2.54"
 license = { file = "LICENSE.txt" }
 dependencies = ["GitPython", "PyGithub", "matrix-client==0.4.0", "transformers", "huggingface-hub>0.20", "typer", "rich", "typing-extensions"]