OpenRC Initscripts for Redshift

redshift.conf.d

# /etc/conf.d/redshift

DISPLAY="${DISPLAY:-:0}"

# Make it a function in case we have to repeat it in init script later
set_xauth() {

# common case (works in almost all tested environments (except of lightdm)):
#XAUTHORITY="$(ps wwax -C X,Xorg -o args= --sort=-stime | grep -m 1 -o '\B[-]auth\s*/var\S*' | cut -d ' ' -f 2)"

# kdm and some others:
# XAUTHORITY="$(find /var/run/xauth/A${DISPLAY}-*|tail -n1)"

# gdm:
# XAUTHORITY="/var/gdm/${DISPLAY}.Xauth"

# slim:
# XAUTHORITY="/var/run/slim.auth"

# lightdm:
# XAUTHORITY="/var/run/lightdm/root/${DISPLAY}"

# lxdm:
# XAUTHORITY="/var/run/lxdm/lxdm-${DISPLAY}.auth"

# sddm:
XAUTHORITY="$(ps wwax -C X,Xorg -o args= --sort=-stime | grep -m 1 -o '\B[-]auth\s*/var/run/sddm\S*' | cut -d ' ' -f2)"

}
set_xauth

redshift.init.d

#!/sbin/openrc-run
# /etc/init.d/redshift

depend() {
	need xdm
	need localmount
	after bootmisc
}

start() {
	ebegin "Starting redshift"

	set_xauth

	if [ -z "${XAUTHORITY}" ]; then

		einfo "Waiting for xauthority..."

		# wait for xauth file
		while true; do
			set_xauth

			if [ -e "${XAUTHORITY}" ]; then
				break
			fi

			sleep 1
		done
	fi

	start-stop-daemon --start --env DISPLAY=${DISPLAY} --env XAUTHORITY=${XAUTHORITY} \
		--make-pidfile --background --stdout /var/log/redshift.log --stderr /var/log/redshift-error.log \
		--exec /usr/bin/redshift --pidfile /var/run/redshift.pid -- -c /etc/redshift.conf
	eend $?
}

stop() {
    ebegin "Stopping redshift"
    start-stop-daemon --stop --exec /usr/bin/redshift --pidfile /var/run/redshift.pid
    eend $?
}