refs.c: add a strbuf argument to ref_transaction_commit for error logging

Add a strbuf argument to _commit so that we can pass an error string back to
the caller. So that we can do error logging from the caller instead of from
_commit.

Longer term plan is to first convert all callers to use onerr==QUIET_ON_ERR
and craft any log messages from the callers themselves and finally remove the
onerr argument completely.

Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
This commit is contained in:
Ronnie Sahlberg 2014-06-20 07:42:46 -07:00 коммит произвёл Junio C Hamano
Родитель 1b07255c95
Коммит 995f8746bc
3 изменённых файлов: 10 добавлений и 3 удалений

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@ -367,7 +367,7 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
if (end_null)
line_termination = '\0';
update_refs_stdin();
ret = ref_transaction_commit(transaction, msg,
ret = ref_transaction_commit(transaction, msg, NULL,
UPDATE_REFS_DIE_ON_ERR);
ref_transaction_free(transaction);
return ret;

6
refs.c
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@ -3444,7 +3444,8 @@ static int ref_update_reject_duplicates(struct ref_update **updates, int n,
}
int ref_transaction_commit(struct ref_transaction *transaction,
const char *msg, enum action_on_err onerr)
const char *msg, struct strbuf *err,
enum action_on_err onerr)
{
int ret = 0, delnum = 0, i;
const char **delnames;
@ -3473,6 +3474,9 @@ int ref_transaction_commit(struct ref_transaction *transaction,
update->flags,
&update->type, onerr);
if (!update->lock) {
if (err)
strbuf_addf(err, "Cannot lock the ref '%s'.",
update->refname);
ret = 1;
goto cleanup;
}

5
refs.h
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@ -269,9 +269,12 @@ void ref_transaction_delete(struct ref_transaction *transaction,
* Commit all of the changes that have been queued in transaction, as
* atomically as possible. Return a nonzero value if there is a
* problem.
* If err is non-NULL we will add an error string to it to explain why
* the transaction failed. The string does not end in newline.
*/
int ref_transaction_commit(struct ref_transaction *transaction,
const char *msg, enum action_on_err onerr);
const char *msg, struct strbuf *err,
enum action_on_err onerr);
/*
* Free an existing transaction and all associated data.