[PATCH v4 03/12] refs: pass storage format to `ref_store_init()` explicitly

[Patrick Steinhardt <ps@xxxxxx>]

We're about to introduce logic to migrate refs from one storage format
to another one. This will require us to initialize a ref store with a
different format than the one used by the passed-in repository.

Prepare for this by accepting the desired ref storage format as
parameter.

Signed-off-by: Patrick Steinhardt <ps@xxxxxx>
---
 refs.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/refs.c b/refs.c
index e6db85a165..7c3f4df457 100644
--- a/refs.c
+++ b/refs.c
@@ -1894,13 +1894,14 @@ static struct ref_store *lookup_ref_store_map(struct strmap *map,
  * gitdir.
  */
 static struct ref_store *ref_store_init(struct repository *repo,
+					enum ref_storage_format format,
 					const char *gitdir,
 					unsigned int flags)
 {
 	const struct ref_storage_be *be;
 	struct ref_store *refs;
 
-	be = find_ref_storage_backend(repo->ref_storage_format);
+	be = find_ref_storage_backend(format);
 	if (!be)
 		BUG("reference backend is unknown");
 
@@ -1922,7 +1923,8 @@ struct ref_store *get_main_ref_store(struct repository *r)
 	if (!r->gitdir)
 		BUG("attempting to get main_ref_store outside of repository");
 
-	r->refs_private = ref_store_init(r, r->gitdir, REF_STORE_ALL_CAPS);
+	r->refs_private = ref_store_init(r, r->ref_storage_format,
+					 r->gitdir, REF_STORE_ALL_CAPS);
 	r->refs_private = maybe_debug_wrap_ref_store(r->gitdir, r->refs_private);
 	return r->refs_private;
 }
@@ -1982,7 +1984,8 @@ struct ref_store *repo_get_submodule_ref_store(struct repository *repo,
 		free(subrepo);
 		goto done;
 	}
-	refs = ref_store_init(subrepo, submodule_sb.buf,
+	refs = ref_store_init(subrepo, the_repository->ref_storage_format,
+			      submodule_sb.buf,
 			      REF_STORE_READ | REF_STORE_ODB);
 	register_ref_store_map(&repo->submodule_ref_stores, "submodule",
 			       refs, submodule);
@@ -2011,12 +2014,12 @@ struct ref_store *get_worktree_ref_store(const struct worktree *wt)
 		struct strbuf common_path = STRBUF_INIT;
 		strbuf_git_common_path(&common_path, wt->repo,
 				      "worktrees/%s", wt->id);
-		refs = ref_store_init(wt->repo, common_path.buf,
-				      REF_STORE_ALL_CAPS);
+		refs = ref_store_init(wt->repo, wt->repo->ref_storage_format,
+				      common_path.buf, REF_STORE_ALL_CAPS);
 		strbuf_release(&common_path);
 	} else {
-		refs = ref_store_init(wt->repo, wt->repo->commondir,
-				      REF_STORE_ALL_CAPS);
+		refs = ref_store_init(wt->repo, the_repository->ref_storage_format,
+				      wt->repo->commondir, REF_STORE_ALL_CAPS);
 	}
 
 	if (refs)
-- 
2.45.1.410.g58bac47f8e.dirty

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