#!/bin/ksh
################################################################################
#
# File:         switch_rgy
# Description:  A script to switch the registry host from one machine to
#		another.
# Author:       Andrew DeFaria, California Language Labs
# Created:      Wed Jan 15 16:52:22 PST 1997
# Modified:     Wed Jan 15 16:52:22 PST 1997 (Andrew DeFaria) defaria@cup.hp.com
# Language:     Korn Shell
#
# (c) Copyright 2001, Andrew@DeFaria.com, all rights reserved
#
################################################################################
me=$(basename $0)

function usage {
  print "Usage: $me: <new ClearCase Registry Server>"
  exit 1
} # usage

if [ $(id -u) -ne 0 ]; then
  print -u2 "$me: Error: Must be root to execute this command!"
  usage
fi

# Get parameters
if [ $# -ne 1 ]; then
  usage;
else
  new_registry_server="$1"
fi

registry_host_file=/usr/adm/atria/rgy/rgy_hosts.conf

if [ -f $registry_host_file ]; then
  old_registry_server=$(cat $registry_host_file)
  if [ "$old_registry_server" = "$new_registry_server" ]; then
    print -u2 "$me: The registry server is already $new_registry_server"
    print -u2 "$me: Nothing changed!"
    exit
  fi
  cp $registry_host_file $registry_host_file.old
  print $new_registry_server > $registry_host_file
  print "$me: Switched registry server from $old_registry_server \c"
  print "to $new_registry_server."
  print "$me: Saved old registry setting in $registry_host_file.old"
fi