#!/bin/bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

# Check if user is root
if [ $(id -u) != "0" ]; then
    echo "Error: You must be root to run this script, please use root to install lnmp"
    exit 1
fi

clear
echo "========================================================================="
echo "Upgrade Nginx for LNMP,  Written by Licess"
echo "========================================================================="
echo "LNMP is tool to auto-compile & install Nginx+MySQL+PHP on Linux "
echo ""
echo "For more information please visit http://www.lnmp.org/"
echo "========================================================================="

nv=`/usr/local/nginx/sbin/nginx -v 2>&1`
old_nginx_version=`echo $nv | cut -c22-`
#echo $old_nginx_version
if [ -s /usr/local/mariadb/bin/mysql ]; then
	ismysql="no"
else
	ismysql="yes"
fi

if [ "$1" != "--help" ]; then

#set nginx version

	nginx_version=""
	echo "Current Nginx Version:$old_nginx_version"
	echo "Please input nginx version you want:"
	echo "You can get version number from http://nginx.org/en/download.html"
	read -p "(example: 0.8.54 ):" nginx_version
	if [ "$nginx_version" = "" ]; then
		echo "Error: You must input nginx version!!"
		exit 1
	fi
	echo "==========================="

	echo "You want to upgrade nginx version to $nginx_version"

	echo "==========================="

	get_char()
	{
	SAVEDSTTY=`stty -g`
	stty -echo
	stty cbreak
	dd if=/dev/tty bs=1 count=1 2> /dev/null
	stty -raw
	stty echo
	stty $SAVEDSTTY
	}
	echo ""
	echo "Press any key to start...or Press Ctrl+c to cancel"
	char=`get_char`

echo "============================check files=================================="
if [ -s nginx-$nginx_version.tar.gz ]; then
  echo "nginx-$nginx_version.tar.gz [found]"
  else
  echo "Error: nginx-$nginx_version.tar.gz not found!!!download now......"
  wget -c http://nginx.org/download/nginx-$nginx_version.tar.gz
  if [ $? -eq 0 ]; then
	echo "Download nginx-$nginx_version.tar.gz successfully!"
  else
	echo "WARNING!May be the nginx version you input was wrong,please check!"
	echo "Nginx Version input was:"$nginx_version
	sleep 5
	exit 1
  fi
fi
echo "============================check files=================================="
if [ "$ismysql" = "no" ]; then
	echo "Stoping MariaDB..."
	/etc/init.d/mariadb stop
else
	echo "Stoping MySQL..."
	/etc/init.d/mysql stop
fi
echo "Stoping PHP-FPM..."
/etc/init.d/php-fpm stop
if [ -s /etc/init.d/memceached ]; then
  echo "Stoping Memcached..."
  /etc/init.d/memcacehd stop
fi

rm -rf nginx-$nginx_version/

tar zxvf nginx-$nginx_version.tar.gz
cd nginx-$nginx_version/
./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module --with-ipv6
make

mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.old
cp objs/nginx /usr/local/nginx/sbin/nginx
/usr/local/nginx/sbin/nginx -t
make upgrade
echo "Upgrade completed!"
echo "Program will display Nginx Version......"
/usr/local/nginx/sbin/nginx -v
cd ../

echo "Restarting Nginx..."
/etc/init.d/nginx restart

if [ "$ismysql" = "no" ]; then
	echo "Starting MariaDB..."
	/etc/init.d/mariadb start
else
	echo "Starting MySQL..."
	/etc/init.d/mysql start
fi
if [ -s /etc/init.d/httpd ] && [ -s /usr/local/apache ]; then
echo "Restarting Apache......"
/etc/init.d/httpd -k restart
else
echo "Restarting php-fpm......"
/etc/init.d/php-fpm restart
fi
if [ -s /etc/init.d/memceached ]; then
  echo "Starting Memcached..."
  /etc/init.d/memcacehd start
fi

echo "========================================================================="
echo "You have successfully upgrade from $old_nginx_version to $nginx_version"
echo "========================================================================="
echo "LNMP is tool to auto-compile & install Nginx+MySQL+PHP on Linux "
echo "========================================================================="
echo ""
echo "For more information please visit http://www.lnmp.org/"
echo ""
echo "========================================================================="
fi