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Function for updating refs.

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A function intended to be called from builtins updating refs
by locking them before write, specially those that came from
scripts using "git update-ref".

[jc: with minor fixups]

Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Carlos Rica
2007-09-05 03:38:24 +02:00
committed by Junio C Hamano
parent 1e61b7640d
commit 3d9f037c60
5 changed files with 46 additions and 29 deletions
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9
builtin-update-ref.c
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@ -8,7 +8,6 @@ static const char git_update_ref_usage[] =
int cmd_update_ref(int argc, const char **argv, const char *prefix)
{
const char *refname=NULL, *value=NULL, *oldval=NULL, *msg=NULL;
struct ref_lock *lock;
unsigned char sha1[20], oldsha1[20];
int i, delete, ref_flags;
@ -62,10 +61,6 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
if (oldval && *oldval && get_sha1(oldval, oldsha1))
die("%s: not a valid old SHA1", oldval);
lock = lock_any_ref_for_update(refname, oldval ? oldsha1 : NULL, ref_flags);
if (!lock)
die("%s: cannot lock the ref", refname);
if (write_ref_sha1(lock, sha1, msg) < 0)
die("%s: cannot update the ref", refname);
return 0;
return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
ref_flags, DIE_ON_ERR);
}