refs: store the main ref store inside the repository struct

This moves the 'main_ref_store', which was a global variable in refs.c
into the repository struct.

This patch does not deal with the parts in the refs subsystem which deal
with the submodules there. A later patch needs to get rid of the submodule
exposure in the refs API, such as 'get_submodule_ref_store(path)'.

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

1 files changed, 1 insertions, 3 deletions

diff --git a/refs.h b/refs.h
index ab3d2bec2f..f5ab68c0ed 100644
--- a/refs.h
+++ b/refs.h
@@ -760,9 +760,7 @@ int reflog_expire(const char *refname, const struct object_id *oid,
 
 int ref_storage_backend_exists(const char *name);
 
-#define get_main_ref_store(r) \
-	get_main_ref_store_##r()
-struct ref_store *get_main_ref_store_the_repository(void);
+struct ref_store *get_main_ref_store(struct repository *r);
 /*
  * Return the ref_store instance for the specified submodule. For the
  * main repository, use submodule==NULL; such a call cannot fail. For