#!/bin/sh

if [ `whoami` != "root" ]; then
    echo "must be root"
    exit 1
fi

# for xconfig
export DISPLAY=localhost:0.0

# make sure gk.sh always uses the same ccache cache
export CCACHE_DIR=/var/tmp/ccache

# use CCACHE when compiling the kernel
COMPILER=/usr/lib/ccache/bin/gcc

# source make.conf for MAKEOPTS
GK_OPTS=""

if [ -f /etc/make.conf ]; then
    . /etc/make.conf
elif [ -f /etc/portage/make.conf ]; then
    . /etc/portage/make.conf
else
    echo "cannot find make.conf"
    exit 1
fi

if [ "$MAKEOPTS" != "" ]; then
    GK_OPTS="--makeopts=$MAKEOPTS "
fi

if [ -d /etc/kernels ]; then
    kernel=`ls -rt /etc/kernels | tail -n 1`
    if [ $kernel != "" ]; then
        GK_OPTS="$GK_OPTS --kernel-config=/etc/kernels/$kernel"
    fi
fi

genkernel $* \
    --install \
    --no-color \
    --kernel-cc=$COMPILER \
    --utils-cc=$COMPILER \
    --bootloader=grub2 \
    $GK_OPTS \
    all

# TODO check --bootloader
# update the bootloader
#grub-mkconfig -o /boot/grub/grub.cfg