protocol: introduce enum protocol_version value protocol_v2

Introduce protocol_v2, a new value for 'enum protocol_version'.
Subsequent patches will fill in the implementation of protocol_v2.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/connect.c b/connect.c
index 0b111e62d7..4b89b984c4 100644
--- a/connect.c
+++ b/connect.c
@@ -83,6 +83,9 @@ enum protocol_version discover_version(struct packet_reader *reader)
 	}
 
 	switch (version) {
+	case protocol_v2:
+		die("support for protocol v2 not implemented yet");
+		break;
 	case protocol_v1:
 		/* Read the peeked version line */
 		packet_reader_read(reader);