#!/bin/bash
# Focus:
#	- 
#	- 
# Goal:
#	- 

# choose the correct repository depending on the environment
if ifclass OS_SLES ; then

    #### Preparations ####

	# all environment variables starting with this string are recognised as
	# software repositories (compare '[...]/class/44-repository')
	REPOVARID="SUSEREPOSITORY"

	# read additional information from the environment
	#   OS_VERS - which version to install? (etch, lenny, sid, hardy, 10SP2)
	#   OS_ARCH - x86_32 or x86_64?

	# WARNING
	# while this script supports cases where zypper is not available it's
	# very fragile to manually edit the repository database and should only
	# be used in cases where zypper isn't available, e.g. on SuSE Linux
	# Enterprise Server 10 without (at least) service pack 2!
	#
	# caveat: without zypper only $SUSEREPOSITORY is used
	# WARNING

    #### Preparations complete #####

	if [ -n "$(env|grep "^${REPOVARID}")" ] ; then
		if [ -e ${target}/usr/bin/zypper ] ; then
			echo "Using zypper to add a new repository."

			# remove old repositories
			if [ -d ${target}/var/lib/zypp/db ] ; then
				echo "NOTICE: Old repository data found. Removing."
				rm -rf ${target}/var/lib/zypp/db
			fi

			# zypper options differ between SLES10SP2 and SLES11
			#   up to SLES10SP1	-> no zypper available
			#   SLES10 SP2 (v0.6)	-> zypper service-add / service-list
			#   SLES11 GA		-> zypper addrepo     / repos
			# 	
			# TODO: Get rid of cut
			ZYPPERVERS=$(${ROOTCMD} zypper -V 2>&1|cut -d" " -f2|sed -r -e "s'\.[0-9]+$''g")
			case ${ZYPPERVERS} in
				0.6)
					echo "  legacy mode, using old zypper options"
					REPOADD="service-add"
					REPOLIST="service-list"
					;;
				*)
					echo "  defaulting to new zypper options"
					REPOADD="addrepo --refresh"
					REPOLIST="repos"
					;;
			esac

			REPOVARS=$(env|grep "^${REPOVARID}"|cut -d"=" -f1)
			for REPOVAR in ${REPOVARS} ; do
				eval REPO=\$${REPOVAR}
				echo "  found ${REPOVAR} -> ${REPO}"

				REPOID=$(echo ${REPOVAR}|sed -e "s'^${REPOVARID}''")
				if [ -n ${REPO} ] ; then
					${ROOTCMD} zypper -n ${REPOADD} ${REPO} ${OS_VERS}-${OS_ARCH}${REPOID}
				fi
			done
			${ROOTCMD} zypper ${REPOLIST}

			INSTCMD="${ROOTCMD} zypper -n install"
		else
			echo "Couldn't find zypper. Manually editing repository files."
			for file in $(ls ${target}/var/lib/zypp/db/sources/*) ; do
				sed -i -e "s#<url>.*</url>#<url>${SUSEREPOSITORY}</url>#" ${file}
			done

			INSTCMD="${ROOTCMD} yast -i"
		fi
	else
		echo "WARN: Can't update SuSE repository information. \'${REPOVARID}*\' is empty!"
	fi


	# This doesn't really belong here, but I need this update, before
	# instsoft is run and the kernel is installed. While installing the
	# kernel the initrd is built and I don't want to do it a second time.
	# ToDo: make this snippet aware of the disk-layout file and choose the root-fs module appropriately

	if [ -e ${target}/etc/sysconfig/kernel ] ; then
		MODULES=" ext3"
		source /tmp/fai/disk_var.sh
		if [ $(echo $ROOT_PARTITION|cut -f1-3 -d "/") = "/dev/cciss" ] ; then
			MODULES="${MODULES} cciss"
		fi

		sed -i -e "s/^INITRD_MODULES=\"\(.*\)\"$/INITRD_MODULES=\"\1 ${MODULES}\"/" ${target}/etc/sysconfig/kernel
	else
	  echo "SysconfigKernel NOT found! Have a look at this." && exit 800
	fi

	# some additional work is necessary
	# else the kernel package won't properly install
	if [ x"$(mount|grep ${target}/proc)" = x ] ; then
		mount -t proc none ${target}/proc
	fi
	if [ x"$(mount|grep ${target}/sys)" = x ] ; then
		mount -t sysfs none ${target}/sys
	fi
	if [ ! -e ${target}/dev/fd ] ; then
		ln -s /proc/self/fd ${target}/dev/
	fi
	if [ ! -e ${target}/dev/pts ] ; then
		mkdir ${target}/dev/pts
	fi
	mount -t devpts none ${target}/dev/pts
	
	# don't need the debian stuff anymore
	skiptask updatebase
fi