From 7c6c50a3bff8dea7a3382b8c47e4395b193165e9 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 21 Jul 2011 11:16:46 +0000
Subject: [PATCH] * Nuke the KDE icon cache on login.

svn path=/nixos/trunk/; revision=27867
---
 modules/services/x11/desktop-managers/kde4.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/modules/services/x11/desktop-managers/kde4.nix b/modules/services/x11/desktop-managers/kde4.nix
index 5c5260cb01e..68a3ea79413 100644
--- a/modules/services/x11/desktop-managers/kde4.nix
+++ b/modules/services/x11/desktop-managers/kde4.nix
@@ -42,6 +42,16 @@ in
         bgSupport = true;
         start =
           ''
+            # The KDE icon cache is supposed to update itself
+            # automatically, but it uses the timestamp on the icon
+            # theme directory as a trigger.  Since in Nix the
+            # timestamp is always the same, this doesn't work.  So as
+            # a workaround, nuke the icon cache on login.  This isn't
+            # perfect, since it may require logging out after
+            # installing new applications to update the cache.
+            # See http://lists-archives.org/kde-devel/26175-what-when-will-icon-cache-refresh.html
+            rm -fv $HOME/.kde/cache-*/icon-cache.kcache
+
             # Start KDE.
             exec ${pkgs.kde4.kdebase_workspace}/bin/startkde
           '';