ssh: 'simple' variant does not support --port

When trying to connect to an ssh:// URL with port explicitly specified
and the ssh command configured with GIT_SSH does not support such a
setting, it is less confusing to error out than to silently suppress
the port setting and continue.

This requires updating the GIT_SSH setting in t5603-clone-dirname.sh.
That test is about the directory name produced when cloning various
URLs.  It uses an ssh wrapper that ignores all its arguments but does
not declare that it supports a port argument; update it to set
GIT_SSH_VARIANT=ssh to do so.  (Real-life ssh wrappers that pass a
port argument to OpenSSH would also support -G and would not require
such an update.)

Reported-by: William Yan <wyan@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 12 insertions, 3 deletions

diff --git a/connect.c b/connect.c
index c3d1cd3787..d6033861b3 100644
--- a/connect.c
+++ b/connect.c
@@ -967,11 +967,20 @@ static void push_ssh_options(struct argv_array *args, struct argv_array *env,
 	if (variant == VARIANT_TORTOISEPLINK)
 		argv_array_push(args, "-batch");
 
-	if (port && variant != VARIANT_SIMPLE) {
-		if (variant == VARIANT_SSH)
+	if (port) {
+		switch (variant) {
+		case VARIANT_AUTO:
+			BUG("VARIANT_AUTO passed to push_ssh_options");
+		case VARIANT_SIMPLE:
+			die("ssh variant 'simple' does not support setting port");
+		case VARIANT_SSH:
 			argv_array_push(args, "-p");
-		else
+			break;
+		case VARIANT_PLINK:
+		case VARIANT_PUTTY:
+		case VARIANT_TORTOISEPLINK:
 			argv_array_push(args, "-P");
+		}
 
 		argv_array_push(args, port);
 	}