int refs_delete_ref(struct ref_store *refs, const char *msg,
const char *refname,
const unsigned char *old_sha1,
unsigned int flags)
{
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
assert(refs == get_main_ref_store());
return delete_pseudoref(refname, old_sha1);
}
transaction = ref_store_transaction_begin(refs, &err);
if (!transaction ||
ref_transaction_delete(transaction, refname, old_sha1,
flags, msg, &err) ||
ref_transaction_commit(transaction, &err)) {
error("%s", err.buf);
ref_transaction_free(transaction);
strbuf_release(&err);
return 1;
}
ref_transaction_free(transaction);
strbuf_release(&err);
return 0;
}
static int packed_delete_refs(struct ref_store *ref_store, const char *msg,
struct string_list *refnames, unsigned int flags)
{
struct packed_ref_store *refs =
packed_downcast(ref_store, REF_STORE_WRITE, "delete_refs");
struct strbuf err = STRBUF_INIT;
struct ref_transaction *transaction;
struct string_list_item *item;
int ret;
(void)refs; /* We need the check above, but don't use the variable */
if (!refnames->nr)
return 0;
/*
* Since we don't check the references' old_oids, the
* individual updates can't fail, so we can pack all of the
* updates into a single transaction.
*/
transaction = ref_store_transaction_begin(ref_store, &err);
if (!transaction)
return -1;
for_each_string_list_item(item, refnames) {
if (ref_transaction_delete(transaction, item->string, NULL,
flags, msg, &err)) {
warning(_("could not delete reference %s: %s"),
item->string, err.buf);
strbuf_reset(&err);
}
}
ret = ref_transaction_commit(transaction, &err);
if (ret) {
if (refnames->nr == 1)
error(_("could not delete reference %s: %s"),
refnames->items[0].string, err.buf);
else
error(_("could not delete references: %s"), err.buf);
}
ref_transaction_free(transaction);
strbuf_release(&err);
return ret;
}
int refs_update_ref(struct ref_store *refs, const char *msg,
const char *refname, const unsigned char *new_sha1,
const unsigned char *old_sha1, unsigned int flags,
enum action_on_err onerr)
{
struct ref_transaction *t = NULL;
struct strbuf err = STRBUF_INIT;
int ret = 0;
if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
assert(refs == get_main_ref_store());
ret = write_pseudoref(refname, new_sha1, old_sha1, &err);
} else {
t = ref_store_transaction_begin(refs, &err);
if (!t ||
ref_transaction_update(t, refname, new_sha1, old_sha1,
flags, msg, &err) ||
ref_transaction_commit(t, &err)) {
ret = 1;
ref_transaction_free(t);
}
}
if (ret) {
const char *str = "update_ref failed for ref '%s': %s";
switch (onerr) {
case UPDATE_REFS_MSG_ON_ERR:
error(str, refname, err.buf);
break;
case UPDATE_REFS_DIE_ON_ERR:
die(str, refname, err.buf);
break;
case UPDATE_REFS_QUIET_ON_ERR:
break;
}
strbuf_release(&err);
return 1;
}
strbuf_release(&err);
if (t)
ref_transaction_free(t);
return 0;
}
struct ref_transaction *ref_transaction_begin(struct strbuf *err)
{
return ref_store_transaction_begin(get_main_ref_store(), err);
}
