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fetch-pack: support protocol version 2

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When the scaffolding for protocol version 2 was initially added in
8f6982b4e1 ("protocol: introduce enum protocol_version value
protocol_v2", 2018-03-14). As seen in:

    git log -p -G'support for protocol v2 not implemented yet' --full-diff --reverse v2.17.0..v2.20.0

Many of those scaffolding "die" placeholders were removed, but we
hadn't gotten around to fetch-pack yet.

The test here for "fetch refs from cmdline" is very minimal. There's
much better coverage when running the entire test suite under the WIP
GIT_TEST_PROTOCOL_VERSION=2 mode[1], we should ideally have better
coverage without needing to invoke a special test mode.

1. https://public-inbox.org/git/20181213155817.27666-1-avarab@gmail.com/

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2018-12-17 23:40:54 +01:00 committed by Junio C Hamano
parent 98cdfbb84a
commit 4316ff3068
2 changed files with 21 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
builtin/fetch-pack.c
View file

@ -54,6 +54,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
struct oid_array shallow = OID_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
struct packet_reader reader;
enum protocol_version version;
fetch_if_missing = 0;
@ -218,9 +219,11 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_GENTLE_ON_EOF);
switch (discover_version(&reader)) {
version = discover_version(&reader);
switch (version) {
case protocol_v2:
die("support for protocol v2 not implemented yet");
get_remote_refs(fd[1], &reader, &ref, 0, NULL, NULL);
break;
case protocol_v1:
case protocol_v0:
get_remote_heads(&reader, &ref, 0, NULL, &shallow);
@ -230,7 +233,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
}
ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
&shallow, pack_lockfile_ptr, protocol_v0);
&shallow, pack_lockfile_ptr, version);
if (pack_lockfile) {
printf("lock %s\n", pack_lockfile);
fflush(stdout);

22
t/t5500-fetch-pack.sh
View file

@ -436,15 +436,23 @@ test_expect_success 'setup tests for the --stdin parameter' '
) >input.dup
'
test_expect_success 'fetch refs from cmdline' '
(
cd client &&
git fetch-pack --no-progress .. $(cat ../input)
) >output &&
cut -d " " -f 2 <output | sort >actual &&
test_cmp expect actual
test_expect_success 'setup fetch refs from cmdline v[12]' '
cp -r client client1 &&
cp -r client client2
'
for version in '' 1 2
do
test_expect_success "protocol.version=$version fetch refs from cmdline" "
(
cd client$version &&
GIT_TEST_PROTOCOL_VERSION=$version git fetch-pack --no-progress .. \$(cat ../input)
) >output &&
cut -d ' ' -f 2 <output | sort >actual &&
test_cmp expect actual
"
done
test_expect_success 'fetch refs from stdin' '
(
cd client &&