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

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This allows us to get rid of some write-only variables, among them seven
SHA1 buffers.

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 11:45:04 +02:00
committed by Junio C Hamano
parent e691b027b6
commit 744c040b19
14 changed files with 19 additions and 38 deletions
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3
log-tree.c
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@ -185,7 +185,6 @@ static const struct name_decoration *current_pointed_by_HEAD(const struct name_d
{
const struct name_decoration *list, *head = NULL;
const char *branch_name = NULL;
struct object_id unused;
int rru_flags;
/* First find HEAD */
@ -198,7 +197,7 @@ static const struct name_decoration *current_pointed_by_HEAD(const struct name_d
return NULL;
/* Now resolve and find the matching current branch */
branch_name = resolve_ref_unsafe("HEAD", 0, unused.hash, &rru_flags);
branch_name = resolve_ref_unsafe("HEAD", 0, NULL, &rru_flags);
if (!(rru_flags & REF_ISSYMREF))
return NULL;