#!/bin/bash
#
# by gonX <gonX@overclocked.net>
#
# OCNix kernel copier
#
# In short, replaces the contents of a currently existing kernel26 package for Arch Linux with a custom package
#    This was useful for replacing kernels in e.g. archiso compilations
#      Personally, I used this for the ocnix project - http://overclock.net/ocnix
#

_THISARCH=x86_64
_THISKERNEL=$(echo $(echo -n $(make kernelversion) && echo -ARCH))

echo building for $_THISARCH in 2 seconds
sleep 2s

echo 1 preparations
rm -R /tmp/ocnix
mkdir -p /tmp/ocnix{,/boot,/etc/mkinitcpio.d,/lib,/usr/src/$_THISKERNEL}

echo 2 more preparations
echo ALL_kver=\'$_THISKERNEL\' > /tmp/ocnix/etc/mkinitcpio.d/kernel26.kver
abs core/kernel26 > /dev/null
cp /var/abs/core/kernel26/kernel26.preset /tmp/ocnix/etc/mkinitcpio.d/
sed s/2.6.33-ARCH/$_THISKERNEL/ /root/scripts/.INSTALL > /tmp/ocnix/.INSTALL
if [ $_THISARCH = x86_64 ]; then
	cp /root/scripts/.PKGINFO /tmp/ocnix/.PKGINFO
else
	sed s/x86_64/x86/g /root/scripts/.PKGINFO > /tmp/ocnix/.PKGINFO
fi


echo 3 modules
make INSTALL_MOD_PATH=/tmp/ocnix/ modules_install > /dev/null
rm -R /tmp/ocnix/lib/firmware

echo 4 copying
cp System.map /tmp/ocnix/boot/System.map26
cp arch/$_THISARCH/boot/bzImage /tmp/ocnix/boot/vmlinuz26
cp vmlinux /tmp/ocnix/usr/src/$_THISKERNEL/

echo 5 tarring
cd /tmp/ocnix/
tar cJf kernel26-$_THISKERNEL-$_THISARCH.pkg.tar.xz .PKGINFO .INSTALL boot etc lib usr

echo done