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refs: factor update_ref steps into helpers

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Factor the lock and write steps and error handling into helper functions
update_ref_lock and update_ref_write to allow later use elsewhere.
Expose lock_any_ref_for_update's type_p to update_ref_lock callers.

While at it, drop "static" from the local "lock" variable as it is not
necessary to keep across invocations.

Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brad King 2013-09-04 11:22:40 -04:00 committed by Junio C Hamano
parent 9bbb0fa1fd
commit 4738a33338
1 changed files with 24 additions and 6 deletions
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30
refs.c
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@ -3170,12 +3170,13 @@ int for_each_reflog(each_ref_fn fn, void *cb_data)
return retval;
}
int update_ref(const char *action, const char *refname,
const unsigned char *sha1, const unsigned char *oldval,
int flags, enum action_on_err onerr)
static struct ref_lock *update_ref_lock(const char *refname,
const unsigned char *oldval,
int flags, int *type_p,
enum action_on_err onerr)
{
static struct ref_lock *lock;
lock = lock_any_ref_for_update(refname, oldval, flags, NULL);
struct ref_lock *lock;
lock = lock_any_ref_for_update(refname, oldval, flags, type_p);
if (!lock) {
const char *str = "Cannot lock the ref '%s'.";
switch (onerr) {
@ -3183,8 +3184,14 @@ int update_ref(const char *action, const char *refname,
case DIE_ON_ERR: die(str, refname); break;
case QUIET_ON_ERR: break;
}
return 1;
}
return lock;
}
static int update_ref_write(const char *action, const char *refname,
const unsigned char *sha1, struct ref_lock *lock,
enum action_on_err onerr)
{
if (write_ref_sha1(lock, sha1, action) < 0) {
const char *str = "Cannot update the ref '%s'.";
switch (onerr) {
@ -3197,6 +3204,17 @@ int update_ref(const char *action, const char *refname,
return 0;
}
int update_ref(const char *action, const char *refname,
const unsigned char *sha1, const unsigned char *oldval,
int flags, enum action_on_err onerr)
{
struct ref_lock *lock;
lock = update_ref_lock(refname, oldval, flags, 0, onerr);
if (!lock)
return 1;
return update_ref_write(action, refname, sha1, lock, onerr);
}
struct ref *find_ref_by_name(const struct ref *list, const char *name)
{
for ( ; list; list = list->next)