From 21a399042f01a06c5920ac9cd44231721612083a Mon Sep 17 00:00:00 2001
From: George Vlahavas <vlahavas@gmail.com>
Date: Mon, 27 Mar 2017 14:01:05 +0300
Subject: [PATCH] Exit if no X session is found

Catch the exception that is raised when an icon lookup is performed
without an active X session and bail out.
---
 src/xdgmenumaker | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xdgmenumaker b/src/xdgmenumaker
index 3f4daf8..9a5a179 100755
--- a/src/xdgmenumaker
+++ b/src/xdgmenumaker
@@ -305,7 +305,10 @@ def icon_full_path(icon):
             return icon
     icon = icon_strip(icon)
     icon_theme = gtk.icon_theme_get_default()
-    icon = icon_theme.lookup_icon(icon, iconsize, gtk.ICON_LOOKUP_NO_SVG)
+    try:
+        icon = icon_theme.lookup_icon(icon, iconsize, gtk.ICON_LOOKUP_NO_SVG)
+    except AttributeError:
+        sys.exit('ERROR: You need to run xdgmenumaker inside an X session.')
     if icon:
         icon = icon.get_filename()
         if max_icon_size: