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transport.c:🤝 make use of server options from remote

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Utilize the `server_options` from the corresponding remote during the
handshake in `transport.c` when Git protocol v2 is detected. This helps
initialize the `server_options` in `transport.h:transport` if no server
options are set for the transport (typically via `--server-option` or
`-o`).

While another potential place to incorporate server options from the
remote is in `transport.c:transport_get`, setting server options for a
transport using a protocol other than v2 could lead to unexpected errors
(see `transport.c:die_if_server_options`).

Relevant tests and documentation have been updated accordingly.

Signed-off-by: Xing Xin <xingxin.xx@bytedance.com>
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Xing Xin
2024-10-08 03:38:17 +00:00
committed by Junio C Hamano
parent 72da5cfb1c
commit 094f78a16a
5 changed files with 135 additions and 0 deletions
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123
t/t5702-protocol-v2.sh
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@ -185,6 +185,43 @@ test_expect_success 'server-options are sent when using ls-remote' '
grep "server-option=world" log
'
test_expect_success 'server-options from configuration are used by ls-remote' '
test_when_finished "rm -rf log myclone" &&
git clone "file://$(pwd)/file_parent" myclone &&
cat >expect <<-EOF &&
$(git -C file_parent rev-parse refs/heads/main)$(printf "\t")refs/heads/main
EOF
# Default server options from configuration are used
git -C myclone config --add remote.origin.serverOption foo &&
git -C myclone config --add remote.origin.serverOption bar &&
GIT_TRACE_PACKET="$(pwd)/log" git -C myclone -c protocol.version=2 \
ls-remote origin main >actual &&
test_cmp expect actual &&
test_grep "ls-remote> server-option=foo" log &&
test_grep "ls-remote> server-option=bar" log &&
rm -f log &&
# Empty value of remote.<name>.serverOption clears the list
git -C myclone config --add remote.origin.serverOption "" &&
git -C myclone config --add remote.origin.serverOption tar &&
GIT_TRACE_PACKET="$(pwd)/log" git -C myclone -c protocol.version=2 \
ls-remote origin main >actual &&
test_cmp expect actual &&
test_grep "ls-remote> server-option=tar" log &&
test_grep ! "ls-remote> server-option=foo" log &&
test_grep ! "ls-remote> server-option=bar" log &&
rm -f log &&
# Server option from command line overrides those from configuration
GIT_TRACE_PACKET="$(pwd)/log" git -C myclone -c protocol.version=2 \
ls-remote -o hello -o world origin main >actual &&
test_cmp expect actual &&
test_grep "ls-remote> server-option=hello" log &&
test_grep "ls-remote> server-option=world" log &&
test_grep ! "ls-remote> server-option=tar" log
'
test_expect_success 'warn if using server-option with ls-remote with legacy protocol' '
test_must_fail env GIT_TEST_PROTOCOL_VERSION=0 git -c protocol.version=0 \
ls-remote -o hello -o world "file://$(pwd)/file_parent" main 2>err &&
@ -381,6 +418,44 @@ test_expect_success 'server-options are sent when fetching' '
grep "server-option=world" log
'
test_expect_success 'server-options from configuration are used by git-fetch' '
test_when_finished "rm -rf log myclone" &&
git clone "file://$(pwd)/file_parent" myclone &&
git -C file_parent log -1 --format=%s >expect &&
# Default server options from configuration are used
git -C myclone config --add remote.origin.serverOption foo &&
git -C myclone config --add remote.origin.serverOption bar &&
GIT_TRACE_PACKET="$(pwd)/log" git -C myclone -c protocol.version=2 \
fetch origin main &&
git -C myclone log -1 --format=%s origin/main >actual &&
test_cmp expect actual &&
test_grep "fetch> server-option=foo" log &&
test_grep "fetch> server-option=bar" log &&
rm -f log &&
# Empty value of remote.<name>.serverOption clears the list
git -C myclone config --add remote.origin.serverOption "" &&
git -C myclone config --add remote.origin.serverOption tar &&
GIT_TRACE_PACKET="$(pwd)/log" git -C myclone -c protocol.version=2 \
fetch origin main &&
git -C myclone log -1 --format=%s origin/main >actual &&
test_cmp expect actual &&
test_grep "fetch> server-option=tar" log &&
test_grep ! "fetch> server-option=foo" log &&
test_grep ! "fetch> server-option=bar" log &&
rm -f log &&
# Server option from command line overrides those from configuration
GIT_TRACE_PACKET="$(pwd)/log" git -C myclone -c protocol.version=2 \
fetch -o hello -o world origin main &&
git -C myclone log -1 --format=%s origin/main >actual &&
test_cmp expect actual &&
test_grep "fetch> server-option=hello" log &&
test_grep "fetch> server-option=world" log &&
test_grep ! "fetch> server-option=tar" log
'
test_expect_success 'warn if using server-option with fetch with legacy protocol' '
test_when_finished "rm -rf temp_child" &&
@ -404,6 +479,37 @@ test_expect_success 'server-options are sent when cloning' '
grep "server-option=world" log
'
test_expect_success 'server-options from configuration are used by git-clone' '
test_when_finished "rm -rf log myclone" &&
# Default server options from configuration are used
GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
-c remote.origin.serverOption=foo -c remote.origin.serverOption=bar \
clone "file://$(pwd)/file_parent" myclone &&
test_grep "clone> server-option=foo" log &&
test_grep "clone> server-option=bar" log &&
rm -rf log myclone &&
# Empty value of remote.<name>.serverOption clears the list
GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
-c remote.origin.serverOption=foo -c remote.origin.serverOption=bar \
-c remote.origin.serverOption= -c remote.origin.serverOption=tar \
clone "file://$(pwd)/file_parent" myclone &&
test_grep "clone> server-option=tar" log &&
test_grep ! "clone> server-option=foo" log &&
test_grep ! "clone> server-option=bar" log &&
rm -rf log myclone &&
# Server option from command line overrides those from configuration
GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \
-c remote.origin.serverOption=tar \
clone --server-option=hello --server-option=world \
"file://$(pwd)/file_parent" myclone &&
test_grep "clone> server-option=hello" log &&
test_grep "clone> server-option=world" log &&
test_grep ! "clone> server-option=tar" log
'
test_expect_success 'warn if using server-option with clone with legacy protocol' '
test_when_finished "rm -rf myclone" &&
@ -415,6 +521,23 @@ test_expect_success 'warn if using server-option with clone with legacy protocol
test_grep "server options require protocol version 2 or later" err
'
test_expect_success 'server-option configuration with legacy protocol is ok' '
test_when_finished "rm -rf myclone" &&
env GIT_TEST_PROTOCOL_VERSION=0 git -c protocol.version=0 \
-c remote.origin.serverOption=foo -c remote.origin.serverOption=bar \
clone "file://$(pwd)/file_parent" myclone
'
test_expect_success 'invalid server-option configuration' '
test_when_finished "rm -rf myclone" &&
test_must_fail git -c protocol.version=2 \
-c remote.origin.serverOption \
clone "file://$(pwd)/file_parent" myclone 2>err &&
test_grep "error: missing value for '\''remote.origin.serveroption'\''" err
'
test_expect_success 'upload-pack respects config using protocol v2' '
git init server &&
write_script server/.git/hook <<-\EOF &&