refs: introduce REF_SKIP_REFNAME_VERIFICATION flag

Use this flag with the test-helper in t1430, to avoid direct writes to the ref
database.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/refs.c b/refs.c
index 996ac27164..93bfe5b30c 100644
--- a/refs.c
+++ b/refs.c
@@ -1083,9 +1083,10 @@ int ref_transaction_update(struct ref_transaction *transaction,
 {
 	assert(err);
 
-	if ((new_oid && !is_null_oid(new_oid)) ?
-	    check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) :
-	    !refname_is_safe(refname)) {
+	if (!(flags & REF_SKIP_REFNAME_VERIFICATION) &&
+	    ((new_oid && !is_null_oid(new_oid)) ?
+		     check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) :
+			   !refname_is_safe(refname))) {
 		strbuf_addf(err, _("refusing to update ref with bad name '%s'"),
 			    refname);
 		return -1;