implemented the following fixes:

Enhancements:
1. Directory-based imports will not attempt to import components of diffusers models.
2. Diffuser directory imports now supported
3. Files that end with .ckpt that are not Stable Diffusion models (such as VAEs) are
   skipped during import.

Bugs identified in Psychedelicious's review:
1. The invokeai-configure form now tracks the current contents of `invokeai.init` correctly.
2. The autoencoders are no longer treated like installable models, but instead are
   mandatory support models. They will no longer appear in `models.yaml`

Bugs identified in Damian's review:
1. If invokeai-model-install is started before the root directory is initialized, it will
   call invokeai-configure to fix the matter.
2. Fix bug that was causing empty `models.yaml` under certain conditions.
3. Made import textbox smaller
4. Hide the "convert to diffusers" options if nothing to import.

ldm/invoke/config/model_install.py

@@ -19,13 +19,12 @@ from typing import List
 
 import npyscreen
 import torch
-from datetime import datetime
 from pathlib import Path
 from npyscreen import widget
 from omegaconf import OmegaConf
 
 from ..devices import choose_precision, choose_torch_device
-from ..globals import Globals
+from ..globals import Globals, global_config_dir
 from .widgets import MultiSelectColumns, TextBox
 from .model_install_backend import (Dataset_path, default_config_file,
                                     install_requested_models,
@@ -109,7 +108,7 @@ class addModelsForm(npyscreen.FormMultiPage):
         self.nextrely -= 1
         # if user has already installed some initial models, then don't patronize them
         # by showing more recommendations
-        show_recommended = self.installed_models is None or len(self.installed_models)==0
+        show_recommended = not self.existing_models
         self.models_selected = self.add_widget_intelligent(
             npyscreen.MultiSelect,
             name="Install Starter Models",
@@ -137,7 +136,7 @@ class addModelsForm(npyscreen.FormMultiPage):
             self.nextrely -= 1
         self.import_model_paths = self.add_widget_intelligent(
             TextBox,
-            max_height=8,
+            max_height=5,
             scroll_exit=True,
             editable=True,
             relx=4
@@ -165,6 +164,7 @@ class addModelsForm(npyscreen.FormMultiPage):
             relx = 4,
             scroll_exit=True,
         )
+        self.nextrely += 1
         self.convert_models = self.add_widget_intelligent(
             npyscreen.TitleSelectOne,
             name='== CONVERT IMPORTED MODELS INTO DIFFUSERS==',
@@ -172,6 +172,7 @@ class addModelsForm(npyscreen.FormMultiPage):
             value=0,
             begin_entry_at=4,
             max_height=4,
+            hidden=True,  # will appear when imported models box is edited
             scroll_exit=True,
         )
         self.cancel = self.add_widget_intelligent(
@@ -205,9 +206,22 @@ class addModelsForm(npyscreen.FormMultiPage):
         for i in [self.autoload_directory,self.autoscan_on_startup]:
             self.show_directory_fields.addVisibleWhenSelected(i)
 
+        self.show_directory_fields.when_value_edited = self._clear_scan_directory
+        self.import_model_paths.when_value_edited = self._show_hide_convert
+        self.autoload_directory.when_value_edited = self._show_hide_convert
+
     def resize(self):
         super().resize()
         self.models_selected.values = self._get_starter_model_labels()
+
+    def _clear_scan_directory(self):
+        if not self.show_directory_fields.value:
+            self.autoload_directory.value = ''
+        
+    def _show_hide_convert(self):
+        model_paths = self.import_model_paths.value or ''
+        autoload_directory = self.autoload_directory.value or ''
+        self.convert_models.hidden = len(model_paths)==0 and len(autoload_directory)==0
         
     def _get_starter_model_labels(self)->List[str]:
         window_height, window_width = curses.initscr().getmaxyx()
@@ -394,6 +408,12 @@ def main():
     # setting a global here
     Globals.root = os.path.expanduser(get_root(opt.root) or "")
 
+    if not global_config_dir().exists():
+        print('>> Your InvokeAI root directory is not set up. Calling invokeai-configure.')
+        import ldm.invoke.config.invokeai_configure
+        ldm.invoke.config.invokeai_configure.main()
+        sys.exit(0)
+
     try:
         select_and_download_models(opt)
     except AssertionError as e: