[PATCH v2 16/20] get_loose_ref_cache(): new function

[Michael Haggerty]

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 <mhag...@alum.mit.edu>
---
 refs/files-backend.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 0a16f6196c..fefc29433a 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -525,7 +525,7 @@ 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) {
                /*
@@ -545,7 +545,12 @@ 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);
 }
 
 /*
-- 
2.11.0