#!/bin/bash

PROGNAME=`basename $0` || exit 1
DEBUG=0
QUIET=0
TARGET=
KLIBC=/usr/lib/klibc/bin
WORKDIR=$PWD

function debug {
        if [ "$DEBUG" = "1" ]; then echo "${PROGNAME}:debug:$1" 1>&2; fi
}

function warning {
        if [ "$QUIET" = "0" ]; then echo "${PROGNAME}:warning:$1" 1>&2; fi
}

function usage {
        echo "Usage: ${PROGNAME}" 
        exit
}

while [ "$1" != "" ]; do
        case $1 in
                -D | --debug )
                        shift
                        DEBUG=1
                        ;;
                -q | --quiet )
                        shift
                        QUIET=1
                        ;;
                -h | --help )
                        usage
                        ;;
                -* )
                        echo "$PROGNAME: unrecognized option \`$1'"
                        echo "Try \`$PROGNAME --help' for more information."
                        exit 1
                        ;;
                * )
                        break;
                        ;;
        esac
done

function cleanup {
        debug "cleanup called, arg=$1"
        trap - EXIT HUP INT TERM ERR
	if [ "$TARGET" != "" ]; then
		rm -f -r $TARGET
	fi
        exit $1
}

function fatal {
        echo "${PROGNAME}:${1:-"unknown error"}" 1>&2
        cleanup 1
}

function sig_handler_HUPINTTERM {
        fatal "cought HUP, INT or TERM signal, exiting"
}

function sig_handler_ERR {
        cleanup 1
}

function sig_handler_EXIT {
        cleanup 0
}

trap sig_handler_HUPINTTERM HUP INT TERM
trap sig_handler_ERR ERR 
trap sig_handler_EXIT EXIT

KERNEL=`uname -r`

TARGET=`mktemp -d`

if [ ! $WORKDIR/init.debootstrap ]; then
	fatal "init.debootstrap doest not exist"
fi

cp $WORKDIR/init.debootstrap $TARGET/init

if [ ! -d $KLIBC ]; then
	fatal "directory $KLIBC does not exist"
fi

mkdir -p $TARGET/{bin,lib/modules,usr/{bin,sbin,share,lib/debootstrap},sbin}

cp $KLIBC/sh.shared $TARGET/bin/sh
cp $KLIBC/insmod $TARGET/bin
cp $KLIBC/run-init $TARGET/bin
cp /bin/busybox $TARGET/bin
cp /usr/bin/ar $TARGET/usr/bin
cp /sbin/mke2fs $TARGET/sbin
cp /sbin/cryptsetup $TARGET/sbin
cp /usr/sbin/debootstrap $TARGET/usr/sbin
cp /lib/ld-linux.so.2 $TARGET/lib
cp /usr/lib/libbfd-2.19.51.20090714.so $TARGET/lib
cp /lib/i686/cmov/libc.so.6 $TARGET/lib
cp /lib/i686/cmov/libm.so.6 $TARGET/lib
cp /lib/i686/cmov/libpthread.so.0 $TARGET/lib
cp /lib/libext2fs.so.2 $TARGET/lib
cp /lib/libcom_err.so.2 $TARGET/lib
cp /lib/libext2fs.so.2 $TARGET/lib
cp /lib/libcom_err.so.2 $TARGET/lib
cp /lib/libblkid.so.1 $TARGET/lib
cp /lib/libpopt.so.0 $TARGET/lib
cp /lib/libdevmapper.so.1.02.1 $TARGET/lib
cp /lib/libselinux.so.1 $TARGET/lib
cp /lib/libuuid.so.1 $TARGET/lib
cp /lib/libdl.so.2 $TARGET/lib
cp /lib/libe2p.so.2 $TARGET/lib
cp /lib/klibc-*.so $TARGET/lib
#cp /lib/modules/$KERNEL/kernel/drivers/scsi/scsi_mod.ko $TARGET/lib/modules
#cp /lib/modules/$KERNEL/kernel/drivers/ata/libata.ko $TARGET/lib/modules
#cp /lib/modules/$KERNEL/kernel/drivers/ata/ata_generic.ko $TARGET/lib/modules
#cp /lib/modules/$KERNEL/kernel/drivers/ata/ata_piix.ko $TARGET/lib/modules
#cp /lib/modules/$KERNEL/kernel/drivers/cdrom/cdrom.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/input/mouse/psmouse.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/ide/ide-core.ko $TARGET/lib/modules
#cp /lib/modules/$KERNEL/kernel/drivers/ide/ide-cd_mod.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/ide/ide-gd_mod.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/ide/ide-pci-generic.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/ide/piix.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/net/ne2k-pci.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/net/8390.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/fs/jbd/jbd.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/fs/mbcache.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/fs/ext3/ext3.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/fs/ext2/ext2.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/md/dm-mod.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/drivers/md/dm-crypt.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/crypto/aes_generic.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/crypto/sha256_generic.ko $TARGET/lib/modules
cp /lib/modules/$KERNEL/kernel/crypto/cbc.ko $TARGET/lib/modules
cp /usr/lib/libz.so.1 $TARGET/lib
cp -a /usr/share/debootstrap $TARGET/usr/share/debootstrap
cp $WORKDIR/pkgdetails/pkgdetails $TARGET/usr/lib/debootstrap
tar -cvzf $TARGET/modules.tar.gz /lib/modules/$KERNEL
cd $TARGET
find . | cpio -o -H newc | gzip > $WORKDIR/initramfs.debootstrap.cpio.gz