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;

View File

@ -307,7 +307,6 @@ const struct worktree *find_shared_symref(const char *symref,
for (i = 0; worktrees[i]; i++) {
struct worktree *wt = worktrees[i];
const char *symref_target;
unsigned char sha1[20];
struct ref_store *refs;
int flags;
@ -327,7 +326,7 @@ const struct worktree *find_shared_symref(const char *symref,
refs = get_worktree_ref_store(wt);
symref_target = refs_resolve_ref_unsafe(refs, symref, 0,
sha1, &flags);
NULL, &flags);
if ((flags & REF_ISSYMREF) && !strcmp(symref_target, target)) {
existing = wt;
break;