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@xxxxxxxxx>
Signed-off-by: Ronnie Sahlberg <sahlberg@xxxxxxxxxx>
---
builtin/update-ref.c | 2 +-
refs.c | 6 +++++-
refs.h | 5 ++++-
3 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index 405267f..aaa06aa 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -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);
return ret;
}
diff --git a/refs.c b/refs.c
index 88d73c8..1a7f9d9 100644
--- a/refs.c
+++ b/refs.c
@@ -3423,7 +3423,8 @@ 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;
@@ -3452,6 +3453,9 @@ 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;
}
diff --git a/refs.h b/refs.h
index 6d97700..25ae110 100644
--- a/refs.h
+++ b/refs.h
@@ -274,9 +274,12 @@ 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. The ref_transaction is freed by this function.
+ * 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);
/** Lock a ref and then write its file */
int update_ref(const char *action, const char *refname,
--
2.0.0.rc3.477.g0f8edf7
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