t/interop: add test of old clients against modern git-daemon

This test just checks that old clients can clone and fetch from a newer git-daemon. The opposite should also be true, but it's hard to test ancient versions of git-daemon because they lack basic options like "--listen". Note that we have to make a slight tweak to the lib-git-daemon helper from the regular tests, so that it starts the daemon with our correct git.a version. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Feb 25, 2017 at 04:37 UTC bd4d9d993c1202615178f86a947a5c63e706860f
2 files changed +43 -1
t/interop/i5500-git-daemon.sh new
+41
@@ -0,0 +1,41 @@
1 +#!/bin/sh
2 +
3 +VERSION_A=.
4 +VERSION_B=v1.0.0
5 +
6 +: ${LIB_GIT_DAEMON_PORT:=5500}
7 +LIB_GIT_DAEMON_COMMAND='git.a daemon'
8 +
9 +test_description='clone and fetch by older client'
10 +. ./interop-lib.sh
11 +. "$TEST_DIRECTORY"/lib-git-daemon.sh
12 +
13 +start_git_daemon --export-all
14 +
15 +repo=$GIT_DAEMON_DOCUMENT_ROOT_PATH/repo
16 +
17 +test_expect_success "create repo served by $VERSION_A" '
18 + git.a init "$repo" &&
19 + git.a -C "$repo" commit --allow-empty -m one
20 +'
21 +
22 +test_expect_success "clone with $VERSION_B" '
23 + git.b clone "$GIT_DAEMON_URL/repo" child &&
24 + echo one >expect &&
25 + git.a -C child log -1 --format=%s >actual &&
26 + test_cmp expect actual
27 +'
28 +
29 +test_expect_success "fetch with $VERSION_B" '
30 + git.a -C "$repo" commit --allow-empty -m two &&
31 + (
32 + cd child &&
33 + git.b fetch
34 + ) &&
35 + echo two >expect &&
36 + git.a -C child log -1 --format=%s FETCH_HEAD >actual &&
37 + test_cmp expect actual
38 +'
39 +
40 +stop_git_daemon
41 +test_done
t/lib-git-daemon.sh
+2 -1
@@ -46,7 +46,8 @@ start_git_daemon() {
46
47 say >&3 "Starting git daemon ..."
48 mkfifo git_daemon_output
49 - git daemon --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
49 + ${LIB_GIT_DAEMON_COMMAND:-git daemon} \
50 + --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
51 --reuseaddr --verbose \
52 --base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
53 "$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \