connect: request remote refs using v2

Teach the client to be able to request a remote's refs using protocol
v2.  This is done by having a client issue a 'ls-refs' request to a v2
server.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/connect.h b/connect.h
index cdb8979dce..8898d44952 100644
--- a/connect.h
+++ b/connect.h
@@ -16,4 +16,6 @@ extern int url_is_local_not_ssh(const char *url);
 struct packet_reader;
 extern enum protocol_version discover_version(struct packet_reader *reader);
 
+extern int server_supports_v2(const char *c, int die_on_error);
+
 #endif