#!/usr/bin/env bash
# $Id: anaconda 737 2007-05-10 10:39:02Z ggoh $
#
# Copyright 2007 Platform Computing Corporation.
#
# Licensed under GPL version 2; See LICENSE for details.
#
# Kusu 'faux anaconda' loader

# Preserve the current environment 
envfile="/tmp/anaconda-current-environment.$$.tmp"
/usr/bin/env > $envfile

# links the kusu runtime to /opt
/usr/bin/ln -sf /tmp/updates/opt /opt

# Sets the LANG to a valid value to avoid the garbled text ui
export LANG="en_US.UTF-8"

# setups our environment
export KUSU_DIST=centos
export KUSU_DISTVER=5
export KUSU_DIST_ARCH=x86_64
source /opt/kusu/bin/kusuenv.sh
export PYTHONPATH=$PYTHONPATH:/tmp/updates/usr/lib64/python2.4/site-packages
export PYTHONPATH=$PYTHONPATH:/tmp/updates/usr/lib/python2.4/site-packages
export PRIMITIVE_LOCKDIR="/tmp"

# setup /tmp/kusu
/usr/bin/mkdir -p $KUSU_TMP

# Migrate stage2.img
/usr/bin/cp /mnt/source/images/stage2.img /tmp/ramfs/stage2.img 
python -c "import sys; sys.path.append('/usr/lib/anaconda'); \
           import isys; isys.lochangefd('/tmp/loop0', '/tmp/ramfs/stage2.img')"
/usr/bin/umount /mnt/source

# launch the Kusu Installer
/usr/bin/python /opt/kusu/bin/installer
EXIT_CODE=$?
if [ $EXIT_CODE -eq 0 ]; then 
    # Unset kusu bits
    for key in `/usr/bin/env | /usr/bin/awk -F= '{print $1}' | grep KUSU`; do 
        unset $key > /dev/null 2>&1
    done
    unset LANG > /dev/null 2>&1
    unset PYTHONPATH  > /dev/null 2>&1
    #clean up temporary net info such as --gateway
    if [ -f "/tmp/netinfo" ];then 
	/usr/bin/rm  -f /tmp/netinfo > /dev/null 2>&1
    fi
 
    
    # Restore the environment when we are done
    source $envfile > /dev/null 2>&1 

    # start thttpd
    /tmp/updates/thttpd-run.sh > /dev/null 2>&1 &
    # exec the real anaconda
    # Need a better to replace existing -m and --kickstart option in $@
    /usr/bin/anaconda "$@" -m http://127.0.0.1/repos/1000 --kickstart /tmp/kusu-ks.cfg ;
    EXIT_CODE=$?
    if [ -f "/kusu/mnt/var/lock/subsys/kusu-installer " ]; then
        /usr/bin/rm -f /kusu/mnt/var/lock/subsys/kusu-installer > /dev/null 2>&1
    fi

	if [ -f "/tmp/kusu.fake.files" ]; then
		for f in `/usr/bin/tac /tmp/kusu.fake.files`; do /usr/bin/rm -f $f > /dev/null 2>&1; done

		# Change grub title to rhel 
		/usr/bin/sed -i 's/CentOS/Red Hat Enterprise Linux Server/g' /kusu/mnt/boot/grub/grub.conf > /dev/null 2>&1
    fi

    exit $EXIT_CODE

elif [ $EXIT_CODE -eq 1 ]; then
    # an unknown exception has occurred. Give user an option to copy out log+dump
    echo "An internal program error has occurred."
    echo "A log of the session can be found in /tmp/kusu.log"
    echo "A dump of the error can be found in /tmp/exception.dump";
elif [ $EXIT_CODE -eq 2 ]; then
    # exit code 2 means user chose to exit
    echo "Exiting on request. Please standby for reboot...";
else
    # in case of problem with the Kusu Installer, we halt
    echo "Something has gone very wrong. Press any key to reboot.";
    read -n 1
fi