#!/bin/env bash
#
# vrename is used to rename an existing vserver guest A to B.
# 
#
# Marc E. Fiuczynski <mef@cs.princeton.edu>
# Copyright (C) 2007 The Trustees of Princeton University
#
# $Id:$
#

oname=$1
nname=$2

if [ -d "/etc/vservers/${nname}" ] ; then
	echo "WARNING: vserver ${nname} already exists.  Aborting..."
	exit -1
fi
if [ ! -d "/etc/vservers/${oname}" ] ; then
	echo "WARNING: vserver ${oname} does not exists.  Aborting..."
	exit -1
fi

[ -f /var/run/vservers/${oname} ] && vserver $oname stop

dlist="/vservers /etc/vservers /etc/vservers/.defaults/cachebase /var/run/vservers /etc/vservers/.defaults/vdirbase"

for dir in $dlist; do
    if [ -d "${dir}/${oname}" ] ; then
	mv ${dir}/${oname} ${dir}/${nname}
    fi
done

# create new symlinks
ln -nsf /etc/vservers/.defaults/cachebase/${nname} /etc/vservers/${nname}/cache 
ln -nsf /etc/vservers/.defaults/vdirbase/${nname} /etc/vservers/${nname}/vdir  
ln -nsf /var/run/vservers/${nname} /etc/vservers/${nname}/run   

exit 0