Added migration to APPDATA from LOCALAPPDATA for windows based Electrum installations

RELEASE-NOTES

@@ -9,6 +9,9 @@ older versions of Electrum.
 and Blockchain functions can be accessed through it. The goal is to
 let users extend Electrum through custom scripts. 
 
+* The location of the Electrum folder in Windows changed from LOCALAPPDATA 
+to APPDATA. Discussion on this topic can be found here: https://bitcointalk.org/index.php?topic=144575.0
+
 * New menu item to display the private key corresponding to a
 receiving address.
 

electrum

@@ -19,6 +19,7 @@
 import re
 import sys, os, time
 import optparse
+import platform
 
 try:
     import ecdsa  
@@ -157,6 +158,11 @@ if __name__ == '__main__':
         for k, v in config_options.items():
             if v is None: config_options.pop(k)
 
+    # Wallet migration on Electrum 1.7
+    # Todo: In time we could remove this again
+    if platform.system() == "Windows":
+        util.check_windows_wallet_migration()
+
     config = SimpleConfig(config_options)
     wallet = Wallet(config)
 
@@ -174,6 +180,7 @@ if __name__ == '__main__':
     #right GUI toolkit based the GUI command line option given 
     if cmd == 'gui':
         pref_gui = config.get('gui','classic')
+
         if pref_gui == 'gtk':
             try:
                 import lib.gui as gui

lib/gui_lite.py

@@ -11,9 +11,6 @@ except ImportError:
     print "If you have pip installed try 'sudo pip install pyqt' if you are on Debian/Ubuntu try 'sudo apt-get install python-qt4'."
     sys.exit(0)
 
-
-
-
 from decimal import Decimal as D
 from util import get_resource_path as rsrc
 from i18n import _

lib/util.py

@@ -1,5 +1,6 @@
 import os, sys
 import platform
+import shutil
 from datetime import datetime
 is_verbose = True
 
@@ -68,14 +69,29 @@ def print_msg(*args):
     sys.stdout.write(" ".join(args) + "\n")
     sys.stdout.flush()
 
+def check_windows_wallet_migration():
+    from PyQt4.QtGui import *
+    from i18n import _
+
+    app = QApplication(sys.argv)
+    if os.path.exists(os.path.join(os.environ["LOCALAPPDATA"], "Electrum")):
+        if os.path.exists(os.path.join(os.environ["APPDATA"], "Electrum")):
+            QMessageBox.information(None,_("Folder migration"), _("Two Electrum folders have been found, the default Electrum location for Windows has changed from %s to %s since Electrum 1.7, please check your wallets and fix the problem manually." % (os.environ["LOCALAPPDATA"], os.environ["APPDATA"])))
+            sys.exit()
+
+        QMessageBox.information(None, _("Folder migration"), _("This version of Electrum moved the Electrum folder on windows from %s to %s, your Electrum folder will now be moved.") % (os.environ["LOCALAPPDATA"], os.environ["APPDATA"]))
+        shutil.move(os.path.join(os.environ["LOCALAPPDATA"], "Electrum"), os.path.join(os.environ["APPDATA"], "Electrum"))
+        QMessageBox.information(None,_("Migration status"), _("Your wallet has been moved sucessfully."))
+
+    
 
 def user_dir():
     if "HOME" in os.environ:
         return os.path.join(os.environ["HOME"], ".electrum")
-    elif "LOCALAPPDATA" in os.environ:
-        return os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
     elif "APPDATA" in os.environ:
         return os.path.join(os.environ["APPDATA"], "Electrum")
+    elif "LOCALAPPDATA" in os.environ:
+        return os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
     else:
         #raise BaseException("No home directory found in environment variables.")
         return