From b0b24ae9ddcdc0966d0640a973c694d3707a3a90 Mon Sep 17 00:00:00 2001
From: Amir Taaki <genjix@riseup.net>
Date: Sat, 7 Jul 2012 23:25:41 +0100
Subject: [PATCH] Use environment variable else fallback to system app path.
 This enables runtime switching between styles without modifying Electrum, and
 avoids potential conflicts from implicit detection of a data/ subdirectory.

---
 lib/gui_lite.py | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lib/gui_lite.py b/lib/gui_lite.py
index 58895a957..1c69291ba 100644
--- a/lib/gui_lite.py
+++ b/lib/gui_lite.py
@@ -36,15 +36,19 @@ def resize_line_edit_width(line_edit, text_input):
     text_input += "A"
     line_edit.setMinimumWidth(metrics.width(text_input))
 
+def cd_data_dir():
+    try:
+        data_dir = os.environ["ELECTRUM_DATA_PATH"]
+    except KeyError:
+        data_dir = appdata_dir()
+    QDir.setCurrent(data_dir)
+
 class ElectrumGui:
 
     def __init__(self, wallet):
         self.wallet = wallet
         self.app = QApplication(sys.argv)
-        if os.path.exists("data"):
-            QDir.setCurrent("data")
-        else:
-            QDir.setCurrent(appdata_dir())
+        cd_data_dir()
         with open(rsrc("style.css")) as style_file:
             self.app.setStyleSheet(style_file.read())