Files
systemd/test/units/TEST-17-UDEV.SYSTEMD_WANTS.sh
T
Daan De MeyerandYu Watanabe ee6b3d1aa2 test: Stop using grep -q in integration test
When a TTY is attached to the test unit, grep -q will generate SIGPIPE
for the previous command in the pipeline which in combo with `pipefail`
will cause the command to fail with exit status 141 which will fail the
test.

Replace with >/dev/null to avoid this from happening.

See also https://www.gnu.org/software/grep/manual/html_node/Usage.html
> There is a related problem with Bash’s set -e -o pipefail. Since grep
> does not always read all its input, a command outputting to a pipe read
> by grep can fail when grep exits before reading all its input, and the
> command’s failure can cause Bash to exit.

Co-authored-by: Yu Watanabe <watanabe.yu+github@gmail.com>
2025-12-10 12:09:10 +01:00

78 lines
2.5 KiB
Bash
Executable File

#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -ex
set -o pipefail
mkdir -p /run/udev/rules.d/
ROOTDEV="$(bootctl -RR)"
rm -f /run/udev/rules.d/50-testsuite.rules
udevadm control --reload
udevadm trigger --settle "$ROOTDEV"
while : ; do
(
udevadm info "$ROOTDEV" | grep -v SYSTEMD_WANTS=foobar.service >/dev/null
udevadm info "$ROOTDEV" | grep -v SYSTEMD_WANTS=waldo.service >/dev/null
systemctl show -p WantedBy foobar.service | grep -v "${ROOTDEV#/dev/}" >/dev/null
systemctl show -p WantedBy waldo.service | grep -v "${ROOTDEV#/dev/}" >/dev/null
) && break
sleep .5
done
cat >/run/udev/rules.d/50-testsuite.rules <<EOF
SUBSYSTEM=="block", KERNEL=="${ROOTDEV#/dev/}", OPTIONS="log_level=debug"
ACTION!="remove", SUBSYSTEM=="block", KERNEL=="${ROOTDEV#/dev/}", ENV{SYSTEMD_WANTS}="foobar.service"
EOF
udevadm control --reload
udevadm trigger --settle "$ROOTDEV"
while : ; do
(
udevadm info "$ROOTDEV" | grep SYSTEMD_WANTS=foobar.service >/dev/null
udevadm info "$ROOTDEV" | grep -v SYSTEMD_WANTS=waldo.service >/dev/null
systemctl show -p WantedBy foobar.service | grep "${ROOTDEV#/dev/}" >/dev/null
systemctl show -p WantedBy waldo.service | grep -v "${ROOTDEV#/dev/}" >/dev/null
) && break
sleep .5
done
cat >/run/udev/rules.d/50-testsuite.rules <<EOF
SUBSYSTEM=="block", KERNEL=="${ROOTDEV#/dev/}", OPTIONS="log_level=debug"
ACTION!="remove", SUBSYSTEM=="block", KERNEL=="${ROOTDEV#/dev/}", ENV{SYSTEMD_WANTS}="waldo.service"
EOF
udevadm control --reload
udevadm trigger --settle "$ROOTDEV"
while : ; do
(
udevadm info "$ROOTDEV" | grep -v SYSTEMD_WANTS=foobar.service >/dev/null
udevadm info "$ROOTDEV" | grep SYSTEMD_WANTS=waldo.service >/dev/null
systemctl show -p WantedBy foobar.service | grep -v "${ROOTDEV#/dev/}" >/dev/null
systemctl show -p WantedBy waldo.service | grep "${ROOTDEV#/dev/}" >/dev/null
) && break
sleep .5
done
rm /run/udev/rules.d/50-testsuite.rules
udevadm control --reload
udevadm trigger --settle "$ROOTDEV"
while : ; do
(
udevadm info "$ROOTDEV" | grep -v SYSTEMD_WANTS=foobar.service >/dev/null
udevadm info "$ROOTDEV" | grep -v SYSTEMD_WANTS=waldo.service >/dev/null
systemctl show -p WantedBy foobar.service | grep -v "${ROOTDEV#/dev/}" >/dev/null
systemctl show -p WantedBy waldo.service | grep -v "${ROOTDEV#/dev/}" >/dev/null
) && break
sleep .5
done
exit 0