refs: pass repo when peeling objects

Both `peel_object()` and `peel_iterated_oid()` implicitly rely on
`the_repository` to look up objects. Despite the fact that we want to
get rid of `the_repository`, it also leads to some restrictions in our
ref iterators when trying to retrieve the peeled value for a repository
other than `the_repository`.

Refactor these functions such that both take a repository as argument
and remove the now-unnecessary restrictions.

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

1 files changed, 3 insertions, 2 deletions

diff --git a/refs.h b/refs.h
index 56d9714293..e043b6cfa3 100644
--- a/refs.h
+++ b/refs.h
@@ -127,13 +127,14 @@ void ref_store_release(struct ref_store *ref_store);
  * Return the peeled value of the oid currently being iterated via
  * for_each_ref(), etc. This is equivalent to calling:
  *
- *   peel_object(oid, &peeled);
+ *   peel_object(r, oid, &peeled);
  *
  * with the "oid" value given to the each_ref_fn callback, except
  * that some ref storage may be able to answer the query without
  * actually loading the object in memory.
  */
-int peel_iterated_oid(const struct object_id *base, struct object_id *peeled);
+int peel_iterated_oid(struct repository *r,
+		      const struct object_id *base, struct object_id *peeled);
 
 /**
  * Resolve refname in the nested "gitlink" repository in the specified