From 2d4b407caa8e0b75d70a274579d3c664069c93d0 Mon Sep 17 00:00:00 2001
From: stason200711 <91085195+stason200711@users.noreply.github.com>
Date: Thu, 26 Mar 2026 09:55:00 +0300
Subject: [PATCH] Update default_config.py

Allow overriding DATA_DIR via environment variable
---
 contact/ui/default_config.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/contact/ui/default_config.py b/contact/ui/default_config.py
index 6b56f57..1ca15d9 100644
--- a/contact/ui/default_config.py
+++ b/contact/ui/default_config.py
@@ -56,9 +56,13 @@ def _get_config_root(preferred_dir: str, fallback_name: str = ".contact_client")
 
     return fallback_dir
 
-
-# Pick the root now.
-config_root = _get_config_root(parent_dir)
+# Allow overriding config root via environment variable
+config_root = os.getenv("CONTACT_CONFIG_ROOT")
+if config_root:
+    if not _is_writable_dir(config_root):
+        raise RuntimeError(f"CONTACT_CONFIG_ROOT={config_root} is not writable")
+else:
+    config_root = _get_config_root(parent_dir)
 
 # Paths (derived from the chosen root)
 json_file_path = os.path.join(config_root, "config.json")