simple and stupid Arch Linux rc.d script for starting and stopping puma (http://puma.io) with certain rails app

puma_rc.d.sh

#!/bin/bash

. /etc/rc.conf
. /etc/rc.d/functions
. /etc/profile

DAEMON=prozatorium
PIDFILE=/path/to/pidfile
app_path=/path/to/rails_app
config=config/puma.rb
logfile=log/puma.log

case "$1" in
 start)
   stat_busy "Starting $DAEMON"
   [ -z "$PID" ] && cd $app_path && bundle exec puma --pidfile $PIDFILE -C $config &>/dev/null >> $logfile &
   if [ $? = 0 ]; then
     add_daemon $DAEMON
     stat_done
   else
     stat_fail
     exit 1
   fi
   ;;
 stop)
   PID=`cat $PIDFILE`
   stat_busy "Stopping $DAEMON"
   [ -n "$PID" ] && kill $PID &>/dev/null
   if [ $? = 0 ]; then
     rm_daemon $DAEMON
     stat_done
   else
     stat_fail
     exit 1
   fi
   ;;
 restart)
   $0 stop
   sleep 1
   $0 start
   ;;
 *)
   echo "usage: $0 {start|stop|restart}"
esac