git-commit-vandalism/t/lib-git-daemon.sh
Johannes Schindelin 9f82b2a6a7 git-daemon: use 'test_atexit` to stop 'git-daemon'
Use 'test_atexit' to run cleanup commands to stop 'git-daemon' at the
end of the test script or upon interrupt or failure, as it is shorter,
simpler, and more robust than registering such cleanup commands in the
trap on EXIT in the test scripts.

Note that in 't5570-git-daemon.sh' the daemon is stopped and then
re-started in the middle of the test script; take care that the
cleanup functions to stop the daemon are only registered once.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-14 12:34:39 +09:00

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# Shell library to run git-daemon in tests. Ends the test early if
# GIT_TEST_GIT_DAEMON is not set.
#
# Usage:
#
# . ./test-lib.sh
# . "$TEST_DIRECTORY"/lib-git-daemon.sh
# start_git_daemon
#
# test_expect_success '...' '
# ...
# '
#
# test_expect_success ...
#
# test_done
test_tristate GIT_TEST_GIT_DAEMON
if test "$GIT_TEST_GIT_DAEMON" = false
then
skip_all="git-daemon testing disabled (unset GIT_TEST_GIT_DAEMON to enable)"
test_done
fi
if test_have_prereq !PIPE
then
test_skip_or_die $GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
fi
test_set_port LIB_GIT_DAEMON_PORT
GIT_DAEMON_PID=
GIT_DAEMON_PIDFILE="$PWD"/daemon.pid
GIT_DAEMON_DOCUMENT_ROOT_PATH="$PWD"/repo
GIT_DAEMON_HOST_PORT=127.0.0.1:$LIB_GIT_DAEMON_PORT
GIT_DAEMON_URL=git://$GIT_DAEMON_HOST_PORT
registered_stop_git_daemon_atexit_handler=
start_git_daemon() {
if test -n "$GIT_DAEMON_PID"
then
error "start_git_daemon already called"
fi
mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
# One of the test scripts stops and then re-starts 'git daemon'.
# Don't register and then run the same atexit handlers several times.
if test -z "$registered_stop_git_daemon_atexit_handler"
then
test_atexit 'stop_git_daemon'
registered_stop_git_daemon_atexit_handler=AlreadyDone
fi
say >&3 "Starting git daemon ..."
mkfifo git_daemon_output
${LIB_GIT_DAEMON_COMMAND:-git daemon} \
--listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
--reuseaddr --verbose --pid-file="$GIT_DAEMON_PIDFILE" \
--base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
"$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
>&3 2>git_daemon_output &
GIT_DAEMON_PID=$!
{
read -r line <&7
printf "%s\n" "$line" >&4
cat <&7 >&4 &
} 7<git_daemon_output &&
# Check expected output
if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
then
kill "$GIT_DAEMON_PID"
wait "$GIT_DAEMON_PID"
unset GIT_DAEMON_PID
test_skip_or_die $GIT_TEST_GIT_DAEMON \
"git daemon failed to start"
fi
}
stop_git_daemon() {
if test -z "$GIT_DAEMON_PID"
then
return
fi
# kill git-daemon child of git
say >&3 "Stopping git daemon ..."
kill "$GIT_DAEMON_PID"
wait "$GIT_DAEMON_PID" >&3 2>&4
ret=$?
if ! test_match_signal 15 $ret
then
error "git daemon exited with status: $ret"
fi
kill "$(cat "$GIT_DAEMON_PIDFILE")" 2>/dev/null
GIT_DAEMON_PID=
rm -f git_daemon_output "$GIT_DAEMON_PIDFILE"
}
# A stripped-down version of a netcat client, that connects to a "host:port"
# given in $1, sends its stdin followed by EOF, then dumps the response (until
# EOF) to stdout.
fake_nc() {
if ! test_declared_prereq FAKENC
then
echo >&4 "fake_nc: need to declare FAKENC prerequisite"
return 127
fi
perl -Mstrict -MIO::Socket::INET -e '
my $s = IO::Socket::INET->new(shift)
or die "unable to open socket: $!";
print $s <STDIN>;
$s->shutdown(1);
print <$s>;
' "$@"
}
test_lazy_prereq FAKENC '
perl -MIO::Socket::INET -e "exit 0"
'