refs: prepare `refs_init_db()` for initializing worktree refs

The purpose of `refs_init_db()` is to initialize the on-disk files of a
new ref database. The function is quite inflexible right now though, as
callers can neither specify the `struct ref_store` nor can they pass any
flags.

Refactor the interface to accept both of these. This will be required so
that we can start initializing per-worktree ref databases via the ref
backend instead of open-coding the initialization in "worktree.c".

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.c b/setup.c
index 1ab1a66bcb..6c8f656f7c 100644
--- a/setup.c
+++ b/setup.c
@@ -1943,7 +1943,7 @@ void create_reference_database(unsigned int ref_storage_format,
 	adjust_shared_perm(git_path("refs"));
 
 	repo_set_ref_storage_format(the_repository, ref_storage_format);
-	if (refs_init_db(&err))
+	if (refs_init_db(get_main_ref_store(the_repository), 0, &err))
 		die("failed to set up refs db: %s", err.buf);
 
 	/*