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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
revision.c
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@ -2263,11 +2263,10 @@ static int handle_revision_pseudo_opt(const char *submodule,
static void NORETURN diagnose_missing_default(const char *def)
{
unsigned char sha1[20];
int flags;
const char *refname;
refname = resolve_ref_unsafe(def, 0, sha1, &flags);
refname = resolve_ref_unsafe(def, 0, NULL, &flags);
if (!refname || !(flags & REF_ISSYMREF) || (flags & REF_ISBROKEN))
die(_("your current branch appears to be broken"));