Startup script for starbound server

starbound.sh

#! /bin/sh
### BEGIN INIT INFO
# Provides:        starbound
# Required-Start:    networking
# Default-Start:    2 3 4 5
# Default-Stop:        S 0 1 6
# Short-Description:    Starbound Server Daemon
# Description:        Starts/Stops/Restarts the Starbound Server Daemon
### END INIT INFO

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Starbound Server Daemon"
NAME=starbound
DIR=/home/steam/Steam/SteamApps/common/Starbound/linux32
DAEMON=$DIR/starbound_server
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

USER=steam
GROUP=steam
DAEMON_ARGS=""

STEAM_DIR=/opt/steam
STEAM_DAEMON=$STEAM_DIR/steamcmd.sh

STEAM_USER=anonymous
STEAM_PASS=
STEAM_APP=211820

[ -x "$DAEMON" ] || exit 0

. /lib/init/vars.sh
. /lib/lsb/init-functions

do_start() {
    if [ -e $PIDFILE ]; then
        PID=`cat $PIDFILE`

        if ( ps -p $PID > /dev/null ); then
            log_failure_msg "$DESC '$NAME' is already running."
            return 1
        else
            rm -f $PIDFILE

            start-stop-daemon --start --background --chdir $DIR --chuid $USER:$GROUP --make-pidfile --pidfile $PIDFILE --quiet --exec $DAEMON --test > /dev/null || return 1
            start-stop-daemon --start --background --chdir $DIR --chuid $USER:$GROUP --make-pidfile --pidfile $PIDFILE --quiet --exec $DAEMON -- $DAEMON_ARGS || return 2
        fi
    else
        start-stop-daemon --start --background --chdir $DIR --chuid $USER:$GROUP --make-pidfile --pidfile $PIDFILE --quiet --exec $DAEMON --test > /dev/null || return 1
        start-stop-daemon --start --background --chdir $DIR --chuid $USER:$GROUP --make-pidfile --pidfile $PIDFILE --quiet --exec $DAEMON -- $DAEMON_ARGS || return 2
    fi
}

do_stop() {
    if [ -e $PIDFILE ]; then
        PID=`cat $PIDFILE`

        if ( ps -p $PID > /dev/null ); then
            start-stop-daemon --stop --signal 2 --quiet --pidfile $PIDFILE
            [ "$?" = 2 ] && return 2
        else
            log_failure_msg "$DESC '$NAME' is not running."
            rm -f $PIDFILE
            return 1
        fi
    else
        log_failure_msg "$DESC '$NAME' is not running."
        return 1
    fi
}

case "$1" in
    start)
        log_daemon_msg "Starting $DESC..." "$NAME"
        do_start

        case "$?" in
            0|1) log_end_msg 0 ;;
            1) log_end_msg 1 ;;
        esac
    ;;
    stop)
        log_daemon_msg "Stopping $DESC..." "$NAME"
        do_stop

        case "$?" in
            0|1) log_end_msg 0 ;;
            2) log_end_msg 1 ;;
        esac
    ;;
    restart)
        log_daemon_msg "Restarting $DESC..." "$NAME"
        do_stop

        case "$?" in
            0|1)
                do_start

                case "$?" in
                    0) log_end_msg 0 ;;
                    *) log_end_msg 1 ;;
                esac
            ;;
            *)
                log_end_msg 1
            ;;
        esac
    ;;
    status)
        if [ -e $PIDFILE ]; then
            PID=`cat $PIDFILE`

            if ( ps -p $PID > /dev/null ); then
                log_success_msg "$DESC '$NAME' is running (pid $PID)."
                exit 0
            else
                log_failure_msg "$DESC '$NAME' is not running."
                rm -f $PIDFILE
                exit 1
            fi
        else
            log_failure_msg "$DESC '$NAME' is not running."
            exit 1
        fi
    ;;
    update)
        su - $USER -c "$STEAM_DAEMON +login $STEAM_USER $STEAM_PASS +app_update $STEAM_APP +quit"
        ;;
    *)
        log_action_msg "Usage: $SCRIPTNAME {start|stop|restart|status|update}"
        exit 0
    ;;
esac