#!/bin/bash
#
# Copyright 2006-2007 David Shakaryan <omp@gentoo.org>
# Distributed under the terms of the GNU General Public License v2

# Define packages to install after installing new kernel.
PACKAGES="x11-drivers/nvidia-drivers"

# Determine new kernel directory.
NEW="$(ls -d /usr/src/linux-*-gentoo* | tail -n 1)"
NEW="${NEW/\/usr\/src\/}"

# Determine old kernel directory and arch.
OLD="linux-$(uname -r)"
ARCH="$(uname -m)"

# Point /usr/src/linux symbolic link to new kernel directory.
cd /usr/src
ln -sfn ${NEW} linux

# Copy old kernel configuration to new kernel directory.
cd linux
cp /usr/src/${OLD}/.config ./

# Adapt old configuration and compile new kernel.
make oldconfig
make
make modules_install

# Backup old kernel/configuration, then copy over new ones.
mv /boot/kernel /boot/kernel.old
mv /boot/config /boot/config.old
cp arch/${ARCH}/boot/bzImage /boot/kernel
cp .config /boot/config

# Remerge packages defined at top of script.
if [[ ${PACKAGES} ]]; then
	paludis -i --add-to-world-atom '( )' ${PACKAGES}
fi