From 6df48b68fadf38d171b318ebb000548d6371672c Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Mon, 18 Oct 2010 11:41:39 -0400
Subject: [PATCH] extensionSystem: Don't load extensions multiple times

Right now if XDG_DATA_DIRS is set to have duplicate entries,
then the extension system will try to load all extensions
more than once.

This commit prevents an extension from getting repeatedly
loaded by checking if its uuid is already registered.

https://bugzilla.gnome.org/show_bug.cgi?id=632477
---
 js/ui/extensionSystem.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/js/ui/extensionSystem.js b/js/ui/extensionSystem.js
index 944e2e546..5315d90c3 100644
--- a/js/ui/extensionSystem.js
+++ b/js/ui/extensionSystem.js
@@ -51,6 +51,12 @@ function loadExtension(dir, enabled, type) {
             return;
         }
     }
+
+    if (extensions[meta.uuid] != undefined) {
+        global.logError(baseErrorString + "extension already loaded");
+        return;
+    }
+
     // Encourage people to add this
     if (!meta['url']) {
         global.log(baseErrorString + 'Warning: Missing "url" property in metadata.json');