get_loose_ref_cache(): new function

Extract a new function, `get_loose_ref_cache()`, from
get_loose_ref_dir(). The function returns the `ref_cache` for the
loose refs of a `files_ref_store`.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 3beab0b752dc3ddb73a45536a24bb65dd7d5847e..7ae7c6a1b756a85859dbeb5ca371c89ff88fd37d 100644 (file)
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -524,7 +524,7 @@ static void loose_fill_ref_dir(struct ref_store *ref_store,
        }
 }
 
-static struct ref_dir *get_loose_ref_dir(struct files_ref_store *refs)
+static struct ref_cache *get_loose_ref_cache(struct files_ref_store *refs)
 {
        if (!refs->loose) {
                /*
@@ -544,7 +544,12 @@ static struct ref_dir *get_loose_ref_dir(struct files_ref_store *refs)
                add_entry_to_dir(get_ref_dir(refs->loose->root),
                                 create_dir_entry(refs->loose, "refs/", 5, 1));
        }
-       return get_ref_dir(refs->loose->root);
+       return refs->loose;
+}
+
+static struct ref_dir *get_loose_ref_dir(struct files_ref_store *refs)
+{
+       return get_ref_dir(get_loose_ref_cache(refs)->root);
 }
 
 /*