refs: pass NULL to refs_resolve_ref_unsafe() if hash is not needed

This allows us to get rid of two write-only variables, one of them
being a SHA1 buffer.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe
2017-09-23 11:44:57 +02:00
committed by Junio C Hamano
parent 54fad6614f
commit e691b027b6
2 changed files with 2 additions and 4 deletions

View File

@ -1676,13 +1676,12 @@ static int commit_ref_update(struct files_ref_store *refs,
* check with HEAD only which should cover 99% of all usage
* scenarios (even 100% of the default ones).
*/
struct object_id head_oid;
int head_flag;
const char *head_ref;
head_ref = refs_resolve_ref_unsafe(&refs->base, "HEAD",
RESOLVE_REF_READING,
head_oid.hash, &head_flag);
NULL, &head_flag);
if (head_ref && (head_flag & REF_ISSYMREF) &&
!strcmp(head_ref, lock->ref_name)) {
struct strbuf log_err = STRBUF_INIT;