#!/bin/bash
# Author:  yeho <lj2007331 AT gmail.com>
# BLOG:  https://blog.linuxeye.com
#
# Notes: OneinStack for CentOS/RadHat 5+ Debian 6+ and Ubuntu 12+
#
# Project home page:
#       https://oneinstack.com
#       https://github.com/lj2007331/oneinstack

Upgrade_OneinStack() {
  pushd ${oneinstack_dir} > /dev/null
  Latest_OneinStack_MD5=$(curl -s http://mirrors.linuxeye.com/md5sum.txt | grep oneinstack.tar.gz | awk '{print $1}')
  [ ! -e install.sh ] && install_flag=n 
  if [ "$oneinstack_md5" != "$Latest_OneinStack_MD5" ]; then
    /bin/mv options.conf /tmp
    /bin/mv backup*.sh /tmp
    [ -e /tmp/oneinstack.tar.gz ] && rm -rf /tmp/oneinstack.tar.gz
    wget -c http://mirrors.linuxeye.com/oneinstack.tar.gz -O /tmp/oneinstack.tar.gz > /dev/null 2>&1 
    tar xzf /tmp/oneinstack.tar.gz -C ../
    IFS=$'\n'
    for L in `grep -vE '^#|^$' /tmp/options.conf`
    do
      IFS=$IFS_old
      Key="`echo ${L%%=*}`"
      Value="`echo ${L#*=}`"
      sed -i "s@^${Key}=.*@${Key}=${Value}@" ./options.conf
    done
    rm -rf /tmp/{oneinstack.tar.gz,options.conf}
    [ "$install_flag" == 'n' ] && { /bin/mv /tmp/backup*.sh .; rm -rf install.sh LICENSE README.md; }
    sed -i "s@^oneinstack_md5=.*@oneinstack_md5=${Latest_OneinStack_MD5}@" ./options.conf
    echo
    echo "${CSUCCESS}Congratulations! OneinStack upgrade successful! ${CEND}"
    echo
  else
    echo "${CWARNING}Your OneinStack already has the latest version or does not need to be upgraded! ${CEND}"
  fi
  popd > /dev/null
}