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#!/sbin/openrc-run
# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
state_dir=/var/lib/acpilight
extra_commands="save restore"
depend() {
need localmount
after bootmisc modules isapnp coldplug hotplug
}
restore() {
ebegin "Restoring brightness level"
if [ ! -r "${state_dir}/state" ] ; then
ewarn "No brightness level in ${state_dir}/state"
eend 0
return 0
fi
xbacklight "$(cat "${state_dir}/state")"
ewend $? "Could not restore brightness. The state file ${state_dir}/state is invalid or the system cannot apply the value."
}
save() {
local newValue
ebegin "Saving brightness level"
# Save the value here so an error won't record an empty/invalid value
newValue=$(xbacklight -get) && \
mkdir -p "${state_dir}" && \
echo "${newValue}" > "${state_dir}/state"
if [ $? -gt 0 ]; then
ewarn "Could not save brightness."
ewarn "The state file ${state_dir}/state cannot be written to or the system cannot read the brightness value."
fi
# Don't fail on error
eend 0
}
start() {
if [ "${RESTORE_ON_START}" = "yes" ]; then
restore
fi
}
stop() {
if [ "${SAVE_ON_STOP}" = "yes" ]; then
save
fi
}
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