[meld] build_helpers: Don't install all files in icon folders, just png and svg

[Kai Willadsen <kaiw src gnome org>]

commit ac99b9db66dea4fec4abc561bf82f0dfb74fbc8a
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Fri Nov 8 06:29:46 2013 +1000

    build_helpers: Don't install all files in icon folders, just png and svg

 meld/build_helpers.py |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/meld/build_helpers.py b/meld/build_helpers.py
index c915840..d5dd96a 100644
--- a/meld/build_helpers.py
+++ b/meld/build_helpers.py
@@ -93,10 +93,9 @@ class build_icons(distutils.cmd.Command):
         for theme in glob.glob(os.path.join(self.icon_dir, "*")):
             for size in glob.glob(os.path.join(theme, "*")):
                 for category in glob.glob(os.path.join(size, "*")):
-                    icons = []
-                    for icon in glob.glob(os.path.join(category,"*")):
-                        if not os.path.islink(icon):
-                            icons.append(icon)
+                    icons = (glob.glob(os.path.join(category, "*.png")) +
+                             glob.glob(os.path.join(category, "*.svg")))
+                    icons = [icon for icon in icons if not os.path.islink(icon)]
                     if not icons:
                         continue
                     data_files.append(("share/icons/%s/%s/%s" %