git/t/lib-git-p4.sh
Pete Wyckoff 23bd0c99f7 git p4 test: use real_path to resolve p4 client symlinks
The p4 program is finicky about making sure the recorded client Root
matches the current working directory.  The way it discovers the latter
seems to be to inspect shell variable $PWD.  This could involve symlinks,
that while leading to the same place as the client Root, look different,
and cause p4 to fail.

Resolve all client paths using "test-path-utils real_path $path".  This
removes ".." and resolves all symlinks.

Discovered while running with --root=/dev/shm, which is a link to
/run/shm.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-27 21:06:34 -07:00

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#
# Library code for git p4 tests
#
. ./test-lib.sh
if ! test_have_prereq PYTHON; then
skip_all='skipping git p4 tests; python not available'
test_done
fi
( p4 -h && p4d -h ) >/dev/null 2>&1 || {
skip_all='skipping git p4 tests; no p4 or p4d'
test_done
}
# Try to pick a unique port: guess a large number, then hope
# no more than one of each test is running.
#
# This does not handle the case where somebody else is running the
# same tests and has chosen the same ports.
testid=${this_test#t}
git_p4_test_start=9800
P4DPORT=$((10669 + ($testid - $git_p4_test_start)))
export P4PORT=localhost:$P4DPORT
export P4CLIENT=client
export P4EDITOR=:
db="$TRASH_DIRECTORY/db"
cli=$(test-path-utils real_path "$TRASH_DIRECTORY/cli")
git="$TRASH_DIRECTORY/git"
pidfile="$TRASH_DIRECTORY/p4d.pid"
start_p4d() {
mkdir -p "$db" "$cli" "$git" &&
rm -f "$pidfile" &&
(
p4d -q -r "$db" -p $P4DPORT &
echo $! >"$pidfile"
) &&
# This gives p4d a long time to start up, as it can be
# quite slow depending on the machine. Set this environment
# variable to something smaller to fail faster in, say,
# an automated test setup. If the p4d process dies, that
# will be caught with the "kill -0" check below.
i=${P4D_START_PATIENCE:-300}
pid=$(cat "$pidfile")
ready=
while test $i -gt 0
do
# succeed when p4 client commands start to work
if p4 info >/dev/null 2>&1
then
ready=true
break
fi
# fail if p4d died
kill -0 $pid 2>/dev/null || break
echo waiting for p4d to start
sleep 1
i=$(( $i - 1 ))
done
if test -z "$ready"
then
# p4d failed to start
return 1
fi
# build a client
(
cd "$cli" &&
p4 client -i <<-EOF
Client: client
Description: client
Root: $cli
View: //depot/... //client/...
EOF
)
return 0
}
kill_p4d() {
pid=$(cat "$pidfile")
# it had better exist for the first kill
kill $pid &&
for i in 1 2 3 4 5 ; do
kill $pid >/dev/null 2>&1 || break
sleep 1
done &&
# complain if it would not die
test_must_fail kill $pid >/dev/null 2>&1 &&
rm -rf "$db" "$cli" "$pidfile"
}
cleanup_git() {
rm -rf "$git"
}