OpenRC init-script for ncdc

ncdc

#!/sbin/runscript
###
#
# OpenRC init-script for ncdc
#
# Distributed under the terms of the GNU General Public License, v3 or later.
#
# © 2014 Kirill Elagin <[email protected]>
#                      http://kir.elagin.me/
#
# Based on Gentoo Linux `deluged` init script:
## Copyright 1999-2013 Gentoo Foundation
## Distributed under the terms of the GNU General Public License, v2 or later
## $Header: /var/cvsroot/gentoo-x86/net-p2p/deluge/files/deluged.init,v 1.11 2013/04/01 08:30:44 heroxbd Exp $
# Based on tmux-magic:
## https://gist.github.com/kirelagin/d4e13b027a384cb6ab65
#
###


PIDFILE="/var/run/${RC_SVCNAME}/${RC_SVCNAME}.pid"

depend() {
	need net
}

checkconfig() {
	if [ "${NCDC_USER}" = "" ] ; then
		eerror "Please edit /etc/conf.d/ncdc"
		eerror "You have to specify a user to run ncdc as, as we will not run it as root!"
		eerror "Modify NCDC_USER to your needs"
		return 1
	fi
	if ! getent passwd "${NCDC_USER}" >/dev/null ; then
		eerror "Please edit /etc/conf.d/ncdc"
		eerror "Your user has to exist!"
		return 1
	fi

	checkpath -d -o "${NCDC_USER}":root ${PIDFILE%/*}
}

start() {
	checkconfig || return $?
	ebegin "Starting ncdc"
	tmux_magic_start
	eend $?
}

stop() {
	ebegin "Stopping ncdc"
	tmux_magic_stop
	eend $?
}

TMAGIC_USER="${NCDC_USER}"
TMAGIC_CMD="ncdc"
TMAGIC_PIDFILE="${PIDFILE}"


extra_started_commands="attach"
description_attach="Show the console"

tmux_magic_start() {
	start-stop-daemon --start --user "${TMAGIC_USER}" \
	--pidfile "${TMAGIC_PIDFILE}" \
	--exec tmux -- -L _rc new-session -s "${RC_SVCNAME}" -d "echo \$\$ > \"${TMAGIC_PIDFILE}\" && exec ${TMAGIC_CMD}"
}

tmux_magic_stop() {
	start-stop-daemon --stop --user "${TMAGIC_USER}" \
	--pidfile "${TMAGIC_PIDFILE}"
}

attach() {
	sudo -u "${TMAGIC_USER}" tmux -L _rc attach-session -t "${RC_SVCNAME}"
}