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/refs.h b/refs.h
index 916b874ae3..114caa272a 100644
--- a/refs.h
+++ b/refs.h
@@ -126,7 +126,7 @@ int should_autocreate_reflog(const char *refname);
 
 int is_branch(const char *refname);
 
-int refs_init_db(struct strbuf *err);
+int refs_init_db(struct ref_store *refs, int flags, struct strbuf *err);
 
 /*
  * Return the peeled value of the oid currently being iterated via