#!/bin/bash
# Rename existing virtnet nodes to either nodes or names
#
# Read the comments in this script or the help for details.
# For more info see: http://sandilands.info/sgordon/virtnet
#
# $Revision$
# $Author$
# $Date$
# $URL$

# Script parameters
newnametype="";
oldnametype="";
topology=""
virtnethostpath="`dirname $BASH_SOURCE`/../../"
vmusername="root"
idfile="`dirname $BASH_SOURCE`/../../data/defaults/root/.ssh/id_rsa"
portbase=2200

function usage {
cat <<End-of-help
Usage: vn-renamenodes [--topology NUM] [--nodes | --names]
Rename virtnet nodes to use either node numbers or names
Node numbers are: node1, node2, node3, ...
Names are: left1, left2, router1, right1, ...

ASSUMPTIONS
The nodes of the specified topology must exist and be running and the
topology must have a nodelist in ../../data/topologies

EXAMPLES
1. Change nodes to names in topology 100
   vn-renamenodes --topology 100 --names

1. Change names to nodes in topology 101
   vn-renamenodes --topology 101 --nodes
End-of-help
}

# Read input parameters
while [ "$1" != "" ]; do
	case $1 in
	--nodes )	newnametype="nodes";
			oldnametype="names";
			;;
	--names )	newnametype="names";
			oldnametype="nodes";
			;;
	-t | --topology )	shift;
			topology=$1;
			;;
	* )		usage
			exit 1
	esac
	shift
done

if [ -z ${topology} ]; then
	echo "Error. You must specify a topology."
	echo "Run 'vn-renamenodes --help' for help"
	exit 1;
fi

if [ -z ${newnametype} ]; then
	echo "Error. You must specify the new name type (nodes or names)."
	echo "Run 'vn-renamenodes --help' for help"
	exit 1;
fi

# TODO write the code ...