[libgit2-glib] Allow NULL for path in create_index_entry_for_path

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 068b77a7b3cc3ca122df23849fef8bf1b31d450b
Author: Jesse van den Kieboom <jessevdk gmail com>
Date:   Sat Jun 29 19:59:03 2013 +0200

    Allow NULL for path in create_index_entry_for_path

 libgit2-glib/ggit-repository.c |   16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)
---
diff --git a/libgit2-glib/ggit-repository.c b/libgit2-glib/ggit-repository.c
index 33fecf9..09c9d5e 100644
--- a/libgit2-glib/ggit-repository.c
+++ b/libgit2-glib/ggit-repository.c
@@ -2247,17 +2247,23 @@ ggit_repository_create_index_entry_for_path (GgitRepository  *repository,
        GgitIndexEntry *ret;
 
        g_return_val_if_fail (GGIT_IS_REPOSITORY (repository), NULL);
-       g_return_val_if_fail (path != NULL, NULL);
        g_return_val_if_fail (error == NULL || *error == NULL, NULL);
 
-       if (!g_path_is_absolute (path))
+       if (path)
        {
-               f = g_file_resolve_relative_path (repository->priv->workdir,
-                                                 path);
+               if (!g_path_is_absolute (path))
+               {
+                       f = g_file_resolve_relative_path (repository->priv->workdir,
+                                                         path);
+               }
+               else
+               {
+                       f = g_file_new_for_path (path);
+               }
        }
        else
        {
-               f = g_file_new_for_path (path);
+               f = NULL;
        }
 
        ret = ggit_repository_create_index_entry_for_file (repository,