#!/bin/sh

## centos2cl INFO
# Short Description	:upgrades CentOS or RHEL distro to CloudLinux
# Description      	:removes yum repo configuration related to CentOS/RHEL,
#	  		as well as release related packages. Installs cloudlinux 		
#		        release related packages, new kernel and lve tools
## centos2cl INFO

ARCH=$(uname -i)
yum clean all

function check_kernel_update_permission {
    if [ -e /etc/yum.conf ] && [ -n "$(grep exclude /etc/yum.conf | grep kernel)" ]; then
	echo Kernel update is prohibited on your system. 
	echo Remove "exclude kernel" option from /etc/yum.conf
	echo and run this script again.
	exit 1;
    fi;

}

function backup {
    BACKUP=/etc/cl-convert-saved
    mkdir -p $BACKUP    
    cp /etc/redhat-release $BACKUP
#disable redhat
    mv /etc/yum.repos.d/RedHat-Base.repo $BACKUP 2> /dev/null #test if that is the rate path
    rpm -e --nodeps redhat-release-notes redhat-release yum-rhn-plugin redhat-logos 2> /dev/null

#disable centos
    mv /etc/yum.repos.d/CentOS-Media.repo $BACKUP 2> /dev/null
    mv /etc/yum.repos.d/CentOS-Base.repo $BACKUP 2> /dev/null
    rpm -e --nodeps centos-release centos-release-notes redhat-logos 2> /dev/null ;
}

function prep {
    rpm -Uvh http://repo.cloudlinux.com/cloudlinux/migrate/$ARCH/CloudLinux/cloudlinux-release-5-5.el5.cloudlinux.noarch.rpm --force
    rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CloudLinux;
}







case "$1" in 
    -t) 
	check_kernel_update_permission
	backup
	prep
	yum -y --enablerepo cloudlinux-updates-testing install lve lve-utils liblve
	exit 0;;

    -c) 
	rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5
	rpm -ivh http://mirror.centos.org/centos/5/os/${ARCH}/CentOS/centos-release-5-4.el5.centos.1.${ARCH}.rpm --force --nodeps
	yum install centos-release-notes
	rpm -e --nodeps cloudlinux-release lve liblve lve-utils mod_hostinglimits mod_sucgid 2>/dev/null
	echo "You converted back to CentOS"
	echo "Now is the time to install kernel."
	echo -e "To delete CloudLinux kernel do \nrpm -e $(rpm -qa | grep ^kernel-2 | grep cloud | tr -s '\n' ' ')"
	echo "To install new centos kernel once you deleted cloudlinux kernel, type yum install kernel"
	
	exit 0;;

esac
check_kernel_update_permission
backup
prep
yum -y install lve liblve lve-utils