[gtk/ebassi/reproducible-icon-cache] updateiconcache: Sort list of entries

[Emmanuele Bassi <ebassi src gnome org>]

commit 850768270f86f060ad317933b629593f6fdd08be
Author: Bernhard M. Wiedemann <bwiedemann suse de>
Date:   Wed Aug 15 03:11:21 2018 +0200

    updateiconcache: Sort list of entries
    
    because filesystem readdir order is indeterministic.
    
    Without this patch, building openSUSE's balsa package
    had variations between builds in /usr/share/balsa/icon-theme.cache
    
    (cherry picked from commit b364827a5b99e3b02862f36be4c03826e72aefba)
    Signed-off-by: Emmanuele Bassi <ebassi gnome org>

 gtk/updateiconcache.c | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/gtk/updateiconcache.c b/gtk/updateiconcache.c
index b48eaca804..6703c8b9e8 100644
--- a/gtk/updateiconcache.c
+++ b/gtk/updateiconcache.c
@@ -600,6 +600,7 @@ scan_directory (const gchar *base_path,
 {
   GHashTable *dir_hash;
   GDir *dir;
+  GList *list = NULL, *iterator = NULL;
   const gchar *name;
   gchar *dir_path;
   gboolean dir_added = FALSE;
@@ -617,6 +618,13 @@ scan_directory (const gchar *base_path,
 
   while ((name = g_dir_read_name (dir)))
     {
+      list = g_list_prepend (list, g_strdup (name));
+    }
+  list = g_list_sort (list, (GCompareFunc) strcmp);
+  for (iterator = list; iterator; iterator = iterator->next)
+    {
+      name = iterator->data;
+
       gchar *path;
       gboolean retval;
       int flags = 0;
@@ -695,6 +703,7 @@ scan_directory (const gchar *base_path,
       g_free (path);
     }
 
+  g_list_free_full (list, g_free);
   g_dir_close (dir);
 
   /* Move dir into the big file hash */