[libgit2-glib/wip/albfan/stage-windows] Invalid path resolving relative path on windows

[Alberto Fanjul <albfan src gnome org>]

commit 2cc47f1e67588189c4184e23f79fc27ae125de48
Author: Alberto Fanjul <albertofanjul gmail com>
Date:   Mon May 17 12:43:15 2021 +0200

    Invalid path resolving relative path on windows

 libgit2-glib/ggit-index.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/libgit2-glib/ggit-index.c b/libgit2-glib/ggit-index.c
index 20cb8cd..c87f173 100644
--- a/libgit2-glib/ggit-index.c
+++ b/libgit2-glib/ggit-index.c
@@ -456,6 +456,10 @@ ggit_index_add_file (GgitIndex  *idx,
 
        wd = ggit_repository_get_workdir (repo);
        path = g_file_get_relative_path (wd, file);
+       char **split = g_strsplit(path, "\\", -1);
+       g_free(path);
+       path = g_strjoinv("/", split);
+       g_strfreev(split);
 
        g_object_unref (wd);
        g_object_unref (repo);