#!/bin/sh

mount /boot 2> /dev/null

rm -rf ~/ROOT/
mkdir -p ~/ROOT
cd ~/ROOT
export ROOT=$PWD/
export FEATURES="-* sfperms strict"
export PYTHON_DONTCOMPILE=1
emerge -qKDe system

emerge -qK portage-utils grub

if [[ "$*" != "" ]]; then
	emerge "$@"
fi

cd ${ROOT}/dev || exit 1

suffix="-i386"
case $(uname -m) in
	arm*)    suffix=-arm ;;
	alpha*)   suffix=-alpha ;;
	amd64|x86_64)   suffix=-i386 ;;
	hppa|parisc)    suffix=-hppa ;;
	ia64)    suffix=-ia64 ;;
	m68k)    suffix=-m68k ;;
	mips*)   suffix=-mips ;;
	ppc*)    suffix=-powerpc ;;
	s390*)   suffix=-s390 ;;
	sh*)     suffix=-sh ;;
	sparc*)  suffix=-sparc ;;                
	*86)     suffix=-i386 ;;
esac

echo "Using generic${suffix} to make $(uname -m) device nodes..."
./MAKEDEV generic${suffix}


echo "SETUP: timezone.."
cd ${ROOT}/etc
rm -f localtime
ln -s ../usr/share/zoneinfo/PST8PDT localtime

mkdir -p ${ROOT}/lib/modules/ ${ROOT}/boot/grub ${ROOT}/usr/portage/ ${ROOT}/etc/portage/

echo SETUP: mount binding $PORTDIR to ${ROOT}/${PORTDIR}
mount --bind /usr/portage ${ROOT}/usr/portage

echo SETUP: package manager variables..
cp -a /etc/make.profile ${ROOT}/etc/
grep -v -e USE_ORDER -e MAKEOPTS -e PORTAGE_TMPFS -e EXTRA_ECONF -e ^FEATURES -e ^PORTAGE_BINHOST -e AUTOPATCH -e PATCH_OVERLAY -e ^$ /etc/make.conf > ${ROOT}/etc/make.conf
cp /etc/portage/package.use ${ROOT}/usr/portage/


echo "SETUP: bootloader and kernel modules and fstab.."
cp -a /lib/modules/$(uname -r) ${ROOT}/lib/modules/
cp /boot/grub/grub.conf ${ROOT}/boot/grub/
cp $(grep ^kernel /boot/grub/grub.conf | cut -d ')' -f 2 | awk '{print $1}') ${ROOT}/boot/
cp /etc/fstab ${ROOT}/etc/
env ROOT=/ chroot ${ROOT} /bin/bash -c 'emerge -qK grub'

echo SETUP: compiler to default..
env ROOT=/ chroot ${ROOT} /bin/bash -c 'gcc-config 1'

echo SETUP: unbinding ${ROOT}/${PORTDIR} from $PORTDIR
umount ${ROOT}/usr/portage

echo "Done.."