undef/git-commit-vandalism
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Force writing ref if it doesn't exist.

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Normally we try to skip writing a ref if its value hasn't changed
but in the special case that the ref doesn't exist but the new
value is going to be 0{40} then force writing the ref anyway.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Shawn Pearce 2006-05-19 03:29:05 -04:00 committed by Junio C Hamano
parent c22a7f0fb9
commit 732232a123
2 changed files with 4 additions and 1 deletions
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4
refs.c
View File

@ -288,6 +288,7 @@ static struct ref_lock* lock_ref_sha1_basic(const char *path,
const unsigned char *old_sha1, int mustexist)
{
struct ref_lock *lock;
struct stat st;
lock = xcalloc(1, sizeof(struct ref_lock));
lock->lock_fd = -1;
@ -303,6 +304,7 @@ static struct ref_lock* lock_ref_sha1_basic(const char *path,
lock->ref_file = strdup(path);
lock->lock_file = strdup(mkpath("%s.lock", lock->ref_file));
lock->log_file = strdup(git_path("logs/%s", lock->ref_file + plen));
lock->force_write = !lstat(lock->ref_file, &st) || errno == ENOENT;
if (safe_create_leading_directories(lock->lock_file))
die("unable to create directory for %s", lock->lock_file);
@ -405,7 +407,7 @@ int write_ref_sha1(struct ref_lock *lock,
if (!lock)
return -1;
if (!memcmp(lock->old_sha1, sha1, 20)) {
if (!lock->force_write && !memcmp(lock->old_sha1, sha1, 20)) {
unlock_ref(lock);
return 0;
}

1
refs.h
View File

@ -7,6 +7,7 @@ struct ref_lock {
char *log_file;
unsigned char old_sha1[20];
int lock_fd;
int force_write;
};
/*