refs.c: add an err argument to pack_refsrs/ref-transaction-rename

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/refs.c b/refs.c
index d69b8260ec..1d0b80d504 100644
--- a/refs.c
+++ b/refs.c
@@ -2593,16 +2593,15 @@ static void prune_refs(struct ref_to_prune *r)
 	}
 }
 
-int pack_refs(unsigned int flags)
+int pack_refs(unsigned int flags, struct strbuf *err)
 {
 	struct pack_refs_cb_data cbdata;
-	struct strbuf err = STRBUF_INIT;
 
 	memset(&cbdata, 0, sizeof(cbdata));
 	cbdata.flags = flags;
 
-	if (lock_packed_refs(&err))
-		die("%s", err.buf);
+	if (lock_packed_refs(err))
+		return -1;
 
 	cbdata.packed_refs = get_packed_refs(&ref_cache);