#!/bin/bash
#
# chkconfig: 2345 99 15
# description: Fast web-server and reverse proxy
# processname: /usr/sbin/nginx
# pidfile: /var/run/nginx.pid

# source function library

WITHOUT_RC_COMPAT=1

. /etc/init.d/functions

LOCKFILE=/var/lock/nginx/nginx
PIDFILE=/var/run/nginx.pid
RETVAL=0

start()
{
	mkdir -p /var/lock/nginx
    	mkdir -p /var/run/nginx
	mkdir -p /var/spool/nginx/tmp/proxy
	mkdir -p /var/spool/nginx/tmp/fastcgi
	mkdir -p /var/spool/nginx/tmp/client
	chown _nginx:_nginx /var/run/nginx /var/lock/nginx
	chown _nginx:_nginx /var/spool/nginx/tmp/proxy
	chown _nginx:_nginx /var/spool/nginx/tmp/fastcgi
	chown _nginx:_nginx /var/spool/nginx/tmp/client
	chmod 700 /var/run/nginx /var/lock/nginx \
		/var/spool/nginx/tmp/proxy \
		/var/spool/nginx/tmp/fastcgi \
		/var/spool/nginx/tmp/client
	# nginx can work with many files at one time
	ulimit -n 16384
	start_daemon --lockfile "$LOCKFILE" --expect-user _nginx -- nginx
	RETVAL=$?
	return $RETVAL
}

stop()
{
	stop_daemon --pidfile "$PIDFILE" --lockfile "$LOCKFILE" --expect-user root --name nginx -- nginx
	RETVAL=$?
	return $RETVAL
	rm -f $PIDFILE
}

restart()
{
    	# start _new_ nginx binary
	# !!! warning !!! when ser rtsig, it may not working
#	msg_reloading nginx
#	stop_daemon --expect-user root -USR2 -- nginx
	stop
	start
	RETVAL=$?
	return $RETVAL
}

reload()
{
	msg_reloading nginx
	stop_daemon --expect-user root -HUP -- nginx
	RETVAL=$?
	return $RETVAL
} 

check()
{
    nginx -t
    RETVAL=$?
    return $RETVAL
}

upgrade()
{
    check
    RETVAL=$?
    if [ $RETVAL -eq 0 ]; then
    	echo -n $"Upgrading nginx: "
    	kill -USR2 `cat $PIDFILE`
	RETVAL=$?
	echo
    else 
	failure
    	RETVAL=1
    fi
    return $RETVAL
}

# See how we were called.
case "$1" in
	start)
		check
		RETVAL=$?
		[ $RETVAL -eq 0 ] && start ||:
		;;
	stop)
		stop
		;;
	reload) 
		check
		RETVAL=$?
		[ $RETVAL -eq 0 ] && reload ||:
		;;
	restart)
		restart
		;;
	condstop)
		if [ -e "$LOCKFILE" ]; then
			stop
		fi
		;;
	condrestart)
		[ -e "$LOCKFILE" ] && upgrade ||: 
		;;
	condreload)
		if [ -e "$LOCKFILE" ]; then
			reload
		fi
		;;
	status)
		status --lockfile "$LOCKFILE" --pidfile "$PIDFILE" --expect-user root --name nginx -- nginx
		RETVAL=$?
		;;
	rotate)
		stop_daemon --expect-user root -USR1 -- nginx
		RETVAL=$?
		;;		
	*)
		msg_usage "nginx {start|stop|reload|restart|condstop|condrestart|condreload|status|rotate}"
		RETVAL=1
esac

exit $RETVAL

