From 6a92dd1969820ceb742499e90d804c960677c077 Mon Sep 17 00:00:00 2001
From: Silver <65376327+silveroxides@users.noreply.github.com>
Date: Sun, 2 Mar 2025 21:39:20 +0100
Subject: [PATCH] Better argument handling of front-end-root

Improves handling of front-end-root launch argument. Several instances where users have set it and ComfyUI launches as normal and completely disregards the launch arg which doesn't make sense. Better to indicate to user that something is incorrect.
---
 comfy/cli_args.py | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/comfy/cli_args.py b/comfy/cli_args.py
index c99c9e65e..6d7a27668 100644
--- a/comfy/cli_args.py
+++ b/comfy/cli_args.py
@@ -166,13 +166,14 @@ parser.add_argument(
     """,
 )
 
-def is_valid_directory(path: Optional[str]) -> Optional[str]:
-    """Validate if the given path is a directory."""
-    if path is None:
-        return None
-
+def is_valid_directory(path: str) -> str:
+    """Validate if the given path is a directory, and check permissions."""
+    if not os.path.exists(path):
+        raise argparse.ArgumentTypeError(f"The path '{path}' does not exist.")
     if not os.path.isdir(path):
-        raise argparse.ArgumentTypeError(f"{path} is not a valid directory.")
+        raise argparse.ArgumentTypeError(f"'{path}' is not a directory.")
+    if not os.access(path, os.R_OK):
+        raise argparse.ArgumentTypeError(f"You do not have read permissions for '{path}'.")
     return path
 
 parser.add_argument(