Add --hide-ui-dir-config command line flag

Adds `--hide-ui-dir-config` flag to disable editing directory configs from the web UI. This can be set to prevent users from setting the directory to somewhere they shouldn't, for public (or semi-public) interfaces.

Directories are still read from config.json, so the server admin can still set them in the web UI and then relaunch with the hide flag, or edit the config manually.

Also:
- fix OptionInfo `component_args` keyword argument not being read if `component` isn't also set
- ensure that hidden settings aren't still read from the web UI (otherwise they could still be changed by tampering with the interface)

modules/ui.py

@@ -661,19 +661,20 @@ def create_ui(txt2img, img2img, run_extras, run_pnginfo):
         info = opts.data_labels[key]
         t = type(info.default)
 
+        args = info.component_args() if callable(info.component_args) else info.component_args
+
         if info.component is not None:
-            args = info.component_args() if callable(info.component_args) else info.component_args
-            item = info.component(label=info.label, value=fun, **(args or {}))
+            comp = info.component
         elif t == str:
-            item = gr.Textbox(label=info.label, value=fun, lines=1)
+            comp = gr.Textbox
         elif t == int:
-            item = gr.Number(label=info.label, value=fun)
+            comp = gr.Number
         elif t == bool:
-            item = gr.Checkbox(label=info.label, value=fun)
+            comp = gr.Checkbox
         else:
             raise Exception(f'bad options item type: {str(t)} for key {key}')
 
-        return item
+        return comp(label=info.label, value=fun, **(args or {}))
 
     components = []
     keys = list(opts.data_labels.keys())
@@ -684,6 +685,10 @@ def create_ui(txt2img, img2img, run_extras, run_pnginfo):
         up = []
 
         for key, value, comp in zip(opts.data_labels.keys(), args, components):
+            comp_args = opts.data_labels[key].component_args
+            if comp_args and isinstance(comp_args, dict) and comp_args.get('visible') is False:
+                continue
+
             opts.data[key] = value
             up.append(comp.update(value=value))