switches a Linode guest to use Linode's repository mirrors

linode-mirror-switch

#!/bin/bash

################################################################################
#   License
################################################################################
#
#   Copyright (c) 2014 Brandon Pierce <[email protected]>
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

################################################################################
#   Description
################################################################################
#
#	switches a Linode guest to use Linode's repository mirrors
#

PATHBKUP=/tmp
MSGBKUP="backing up original repository files to $PATHBKUP"
# test the distro and act accordingly
if lsb_release -i | grep Ubuntu > /dev/null; then
	# Ubuntu
	echo $MSGBKUP
	cp /etc/apt/sources.list $PATHBKUP
	sed -i '/^deb/s/\(us.archive\|security\).ubuntu.com/mirrors.linode.com/g' /etc/apt/sources.list
elif [ -e /etc/debian_version ]; then
	# Debian
	echo $MSGBKUP
	cp /etc/apt/sources.list 
	sed -i '/^deb/s/\(\(us\|security\|cdn\).debian.\(org\|net\)\)/mirrors.linode.com/g' /etc/apt/sources.list
elif [ -e /etc/redhat-release ]; then
	# CentOS
	echo $MSGBKUP
	cp /etc/yum/pluginconf.d/fastestmirror.conf $PATHBKUP
	cp /etc/yum.repos.d/CentOS-Base.repo $PATHBKUP
	sed -i '/^enabled/s/1/0/' /etc/yum/pluginconf.d/fastestmirror.conf
	sed -i '/^mirrorlist/s/^/#/' /etc/yum.repos.d/CentOS-Base.repo
	sed -i '/^#baseurl/s/#//' /etc/yum.repos.d/CentOS-Base.repo
	sed -i '/^baseurl/s/mirror.centos.org/mirrors.linode.com/' /etc/yum.repos.d/CentOS-Base.repo
else
	# something else
	echo "Unable to determine distribution or unsupported distribution"
	exit 1
fi