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git/t/lib-git-daemon.sh
Johannes Schindelin a390d7e8f9 tests: turn off git-daemon tests if FIFOs are not available
The Git daemon tests create a FIFO first thing and will hang if said
FIFO is not available.

This is a problem with Git for Windows, where `mkfifo` is an MSYS2
program that leverages MSYS2's POSIX emulation layer, but
`git-daemon.exe` is a MINGW program that has not the first clue about
that POSIX emulation layer and therefore blinks twice when it sees
MSYS2's emulated FIFOs and then just stares into space.

This lets t5570-git-daemon.sh and t5811-proto-disable-git.sh pass.

Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28 13:35:54 -08:00

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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
# . "$TEST_DIRECTORY"/lib-git-daemon.sh
# start_git_daemon
#
# test_expect_success '...' '
# ...
# '
#
# test_expect_success ...
#
# stop_git_daemon
# test_done
test_tristate GIT_TEST_GIT_DAEMON
if test "$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 $GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
fi
LIB_GIT_DAEMON_PORT=${LIB_GIT_DAEMON_PORT-${this_test#t}}
GIT_DAEMON_PID=
GIT_DAEMON_DOCUMENT_ROOT_PATH="$PWD"/repo
GIT_DAEMON_URL=git://127.0.0.1:$LIB_GIT_DAEMON_PORT
start_git_daemon() {
if test -n "$GIT_DAEMON_PID"
then
error "start_git_daemon already called"
fi
mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
trap 'code=$?; stop_git_daemon; (exit $code); die' EXIT
say >&3 "Starting git daemon ..."
mkfifo git_daemon_output
git daemon --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
--reuseaddr --verbose \
--base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
"$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
>&3 2>git_daemon_output &
GIT_DAEMON_PID=$!
{
read line <&7
echo >&4 "$line"
cat <&7 >&4 &
} 7<git_daemon_output &&
# Check expected output
if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
then
kill "$GIT_DAEMON_PID"
wait "$GIT_DAEMON_PID"
trap 'die' EXIT
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
trap 'die' EXIT
# kill git-daemon child of git
say >&3 "Stopping git daemon ..."
kill "$GIT_DAEMON_PID"
wait "$GIT_DAEMON_PID" >&3 2>&4
ret=$?
# expect exit with status 143 = 128+15 for signal TERM=15
if test $ret -ne 143
then
error "git daemon exited with status: $ret"
fi
GIT_DAEMON_PID=
rm -f git_daemon_output
}