#!/bin/bash
#
# priority: 1000
#
# Rebuild the Boot CD
#
# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
# $Id$
#

# Source function library and configuration
. /etc/plc.d/functions
. /etc/planetlab/plc_config

# Be verbose
set -x

case "$1" in
    start)
	if [ "$PLC_BOOT_ENABLED" != "1" -a \
	     "$PLC_WWW_ENABLED" != "1" ] ; then
	    exit 0
	fi

	MESSAGE=$"Rebuilding Boot CD"
	dialog "$MESSAGE"

	########## legacy myplcs - temporary code
	# create /etc/planetlab/nodefamily if missing
	[ -f /etc/planetlab/nodefamily ] || { mkdir -p /etc/planetlab ; echo "planetlab-i386" > /etc/planetlab/nodefamily ; }
	# move if plain directories
	for legacydir in /usr/share/bootcd /var/www/html/download ; do
	    if [ -d "${legacydir}" ] && [ ! -h ${legacydir} ] ; then
		rm -rf ${legacydir}-legacy
		mv -f ${legacydir} ${legacydir}-legacy
	    fi
	done
	########## end

	# get the default nodefamily
	def_nodefamily=$(cat /etc/planetlab/nodefamily)
	
	# Customize the Boot CD : run build.sh on all available bootcd's
	shopt -s nullglob
	for bootcd in /usr/share/bootcd-* ; do
	    name=$(basename $bootcd)
	    nodefamily=$(echo $name | sed -e s,bootcd-,,)
	    download=/var/www/html/download-${nodefamily}
	    [ -d ${download} ] || mkdir -p ${download}

	    pushd ${download}
	    ${bootcd}/build.sh ${PLC_BUILD_ALL_BOOTCDS:+-a}
	    check
	    popd
	
	    # the default: create symlinks to the actual locations
	    if [ "${nodefamily}" == "${def_nodefamily}" ] ; then
		rm -rf /usr/share/bootcd
		ln -s /usr/share/bootcd-${nodefamily} /usr/share/bootcd
		rm -rf /var/www/html/download
		ln -s /var/www/html/download-${nodefamily} /var/www/html/download
	    fi
	done

	result "$MESSAGE"
	;;
esac

exit $ERRORS