#!/bin/bash
# Author:  yeho <lj2007331 AT gmail.com>
# BLOG:  https://linuxeye.com
#
# Notes: OneinStack for CentOS/RedHat 7+ Debian 9+ and Ubuntu 16+
#
# Project home page:
#       https://oneinstack.com
#       https://github.com/oneinstack/oneinstack

Upgrade_Nginx() {
  pushd ${oneinstack_dir}/src > /dev/null
  [ ! -e "${nginx_install_dir}/sbin/nginx" ] && echo "${CWARNING}Nginx is not installed on your system! ${CEND}" && exit 1
  OLD_nginx_ver_tmp=`${nginx_install_dir}/sbin/nginx -v 2>&1`
  OLD_nginx_ver=${OLD_nginx_ver_tmp##*/}
  Latest_nginx_ver=`curl --connect-timeout 2 -m 3 -s http://nginx.org/en/CHANGES-1.22 | awk '/Changes with nginx/{print$0}' | awk '{print $4}' | head -1`
  [ -z "${Latest_nginx_ver}" ] && Latest_nginx_ver=`curl --connect-timeout 2 -m 3 -s http://nginx.org/en/CHANGES | awk '/Changes with nginx/{print$0}' | awk '{print $4}' | head -1`
  echo
  echo "Current Nginx Version: ${CMSG}${OLD_nginx_ver}${CEND}"
  while :; do echo
    [ "${nginx_flag}" != 'y' ] && read -e -p "Please input upgrade Nginx Version(default: ${Latest_nginx_ver}): " NEW_nginx_ver
    NEW_nginx_ver=${NEW_nginx_ver:-${Latest_nginx_ver}}
    if [ "${NEW_nginx_ver}" != "${OLD_nginx_ver}" ]; then
      [ ! -e "nginx-${NEW_nginx_ver}.tar.gz" ] && wget --no-check-certificate -c http://nginx.org/download/nginx-${NEW_nginx_ver}.tar.gz > /dev/null 2>&1
      if [ -e "nginx-${NEW_nginx_ver}.tar.gz" ]; then
        src_url=https://www.openssl.org/source/openssl-${openssl11_ver}.tar.gz && Download_src
        src_url=http://mirrors.linuxeye.com/oneinstack/src/pcre-${pcre_ver}.tar.gz && Download_src
        src_url=http://mirrors.linuxeye.com/oneinstack/src/ngx_devel_kit.tar.gz && Download_src
        src_url=http://mirrors.linuxeye.com/oneinstack/src/lua-nginx-module-${lua_nginx_module_ver}.tar.gz && Download_src
        tar xzf openssl-${openssl11_ver}.tar.gz
        tar xzf pcre-${pcre_ver}.tar.gz
        tar xzf ngx_devel_kit.tar.gz
        tar xzf lua-nginx-module-${lua_nginx_module_ver}.tar.gz
        echo "Download [${CMSG}nginx-${NEW_nginx_ver}.tar.gz${CEND}] successfully! "
        break
      else
        echo "${CWARNING}Nginx version does not exist! ${CEND}"
      fi
    else
      echo "${CWARNING}input error! Upgrade Nginx version is the same as the old version${CEND}"
      exit
    fi
  done

  if [ -e "nginx-${NEW_nginx_ver}.tar.gz" ]; then
    echo "[${CMSG}nginx-${NEW_nginx_ver}.tar.gz${CEND}] found"
    if [ "${nginx_flag}" != 'y' ]; then
      echo "Press Ctrl+c to cancel or Press any key to continue..."
      char=`get_char`
    fi
    ${nginx_install_dir}/sbin/nginx -V &> $$
    nginx_configure_args_tmp=`cat $$ | grep 'configure arguments:' | awk -F: '{print $2}'`
    rm -rf $$
    nginx_configure_args=`echo ${nginx_configure_args_tmp} | sed "s@lua-nginx-module-\w.\w\+.\w\+ @lua-nginx-module-${lua_nginx_module_ver} @" | sed "s@lua-nginx-module @lua-nginx-module-${lua_nginx_module_ver} @" | sed "s@--with-openssl=../openssl-\w.\w.\w\+ @--with-openssl=../openssl-${openssl11_ver} @" | sed "s@--with-pcre=../pcre-\w.\w\+ @--with-pcre=../pcre-${pcre_ver} @"`
    if [ -n `echo $nginx_configure_args | grep lua-nginx-module` ]; then
      ${oneinstack_dir}/upgrade.sh --oneinstack > /dev/null
      src_url=http://mirrors.linuxeye.com/oneinstack/src/luajit2-${luajit2_ver}.tar.gz && Download_src
      tar xzf luajit2-${luajit2_ver}.tar.gz
      pushd luajit2-${luajit2_ver}
      make && make install
      popd > /dev/null
      rm -rf luajit2-${luajit2_ver}

      src_url=http://mirrors.linuxeye.com/oneinstack/src/lua-resty-core-${lua_resty_core_ver}.tar.gz && Download_src
      tar xzf lua-resty-core-${lua_resty_core_ver}.tar.gz
      pushd lua-resty-core-${lua_resty_core_ver}
      make install
      popd > /dev/null
      rm -rf lua-resty-core-${lua_resty_core_ver}

      src_url=http://mirrors.linuxeye.com/oneinstack/src/lua-resty-lrucache-${lua_resty_lrucache_ver}.tar.gz && Download_src
      tar xzf lua-resty-lrucache-${lua_resty_lrucache_ver}.tar.gz
      pushd lua-resty-lrucache-${lua_resty_lrucache_ver}
      make install
      popd > /dev/null
      rm -rf lua-resty-lrucache-${lua_resty_lrucache_ver}
    fi

    tar xzf nginx-${NEW_nginx_ver}.tar.gz
    pushd nginx-${NEW_nginx_ver}
    make clean
    sed -i 's@CFLAGS="$CFLAGS -g"@#CFLAGS="$CFLAGS -g"@' auto/cc/gcc # close debug
    export LUAJIT_LIB=/usr/local/lib
    export LUAJIT_INC=/usr/local/include/luajit-2.1
    ./configure ${nginx_configure_args}
    make -j ${THREAD}
    if [ -f "objs/nginx" ]; then
      /bin/mv ${nginx_install_dir}/sbin/nginx{,`date +%m%d`}
      /bin/cp objs/nginx ${nginx_install_dir}/sbin/nginx
      kill -USR2 `cat /var/run/nginx.pid`
      sleep 1
      kill -QUIT `cat /var/run/nginx.pid.oldbin`
      popd > /dev/null
      echo "You have ${CMSG}successfully${CEND} upgrade from ${CWARNING}${OLD_nginx_ver}${CEND} to ${CWARNING}${NEW_nginx_ver}${CEND}"
      rm -rf nginx-${NEW_nginx_ver}
    else
      echo "${CFAILURE}Upgrade Nginx failed! ${CEND}"
    fi
  fi
  popd > /dev/null
}