t5601: check ssh command only with protocol v0

When running the SSH command as part of a fetch, Git will write "SendEnv
GIT_PROTOCOL" as an option if protocol v1 or v2 is used, but not v0.
Update all tests that check this to run Git with
GIT_TEST_PROTOCOL_VERSION=0.

I chose not to do a more thorough fix (for example, checking the value of
GIT_TEST_PROTOCOL_VERSION to see if the SendEnv check needs to be done)
because a set of patches [1] that unifies the handling of SSH options,
including writing "SendEnv GIT_PROTOCOL" regardless of protocol version,
is in progress. When that is done, this patch should be reverted, since
the functionality in here is no longer needed.

As of this patch, all tests pass if GIT_TEST_PROTOCOL_VERSION is set to
1.

[1] https://public-inbox.org/git/cover.1545342797.git.steadmon@google.com/

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index d6948cbdab03cf827d86511ade26366e89fda149..a454b143ea820392a8d41712d587cb144fc9a3df 100755 (executable)
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -345,7 +345,7 @@ expect_ssh () {
 }
 
 test_expect_success 'clone myhost:src uses ssh' '
-       git clone myhost:src ssh-clone &&
+       GIT_TEST_PROTOCOL_VERSION=0 git clone myhost:src ssh-clone &&
        expect_ssh myhost src
 '
 
@@ -356,12 +356,12 @@ test_expect_success !MINGW,!CYGWIN 'clone local path foo:bar' '
 '
 
 test_expect_success 'bracketed hostnames are still ssh' '
-       git clone "[myhost:123]:src" ssh-bracket-clone &&
+       GIT_TEST_PROTOCOL_VERSION=0 git clone "[myhost:123]:src" ssh-bracket-clone &&
        expect_ssh "-p 123" myhost src
 '
 
 test_expect_success 'OpenSSH variant passes -4' '
-       git clone -4 "[myhost:123]:src" ssh-ipv4-clone &&
+       GIT_TEST_PROTOCOL_VERSION=0 git clone -4 "[myhost:123]:src" ssh-ipv4-clone &&
        expect_ssh "-4 -p 123" myhost src
 '
 
@@ -405,7 +405,7 @@ test_expect_success 'OpenSSH-like uplink is treated as ssh' '
        test_when_finished "rm -f \"\$TRASH_DIRECTORY/uplink\"" &&
        GIT_SSH="$TRASH_DIRECTORY/uplink" &&
        test_when_finished "GIT_SSH=\"\$TRASH_DIRECTORY/ssh\$X\"" &&
-       git clone "[myhost:123]:src" ssh-bracket-clone-sshlike-uplink &&
+       GIT_TEST_PROTOCOL_VERSION=0 git clone "[myhost:123]:src" ssh-bracket-clone-sshlike-uplink &&
        expect_ssh "-p 123" myhost src
 '
 
@@ -444,14 +444,14 @@ test_expect_success 'single quoted plink.exe in GIT_SSH_COMMAND' '
 
 test_expect_success 'GIT_SSH_VARIANT overrides plink detection' '
        copy_ssh_wrapper_as "$TRASH_DIRECTORY/plink" &&
-       GIT_SSH_VARIANT=ssh \
-       git clone "[myhost:123]:src" ssh-bracket-clone-variant-1 &&
+       GIT_TEST_PROTOCOL_VERSION=0 GIT_SSH_VARIANT=ssh \
+               git clone "[myhost:123]:src" ssh-bracket-clone-variant-1 &&
        expect_ssh "-p 123" myhost src
 '
 
 test_expect_success 'ssh.variant overrides plink detection' '
        copy_ssh_wrapper_as "$TRASH_DIRECTORY/plink" &&
-       git -c ssh.variant=ssh \
+       GIT_TEST_PROTOCOL_VERSION=0 git -c ssh.variant=ssh \
                clone "[myhost:123]:src" ssh-bracket-clone-variant-2 &&
        expect_ssh "-p 123" myhost src
 '
@@ -482,7 +482,7 @@ counter=0
 # $3 path
 test_clone_url () {
        counter=$(($counter + 1))
-       test_might_fail git clone "$1" tmp$counter &&
+       test_might_fail env GIT_TEST_PROTOCOL_VERSION=0 git clone "$1" tmp$counter &&
        shift &&
        expect_ssh "$@"
 }