#!/bin/bash
#NEED:ncurses_dev

NAME=linux_src
CWD=`pwd`
PKGTMP=/tmp/pkgtmp


################################################################ UNPACK
echo "* uitpakken kernel"
mkdir -p $PKGTMP/usr/src &>/dev/null
cd $PKGTMP/usr/src
#tar -xzf $CWD/linux-$VER.tar.gz || exit 1

#unpack basic kernel and apply all incremental patches
tar -xf $CWD/linux-5.10.tar.xz || exit 1
cd linux-* || exit 1
#if you want to create a newer kernel: just download newest patches, and increase patchlevel
#also increase .major file to trigger rebuilds!
PATCHLEVEL=73
VER=5.10.$PATCHLEVEL
#bunzip2 $CWD/patch-$VER.bz2 || exit 1
#gunzip $CWD/patch-$VER.gz || exit 1
xz -d $CWD/patch-$VER.xz || exit 1
patch -p1 < $CWD/patch-$VER || exit 1
cd ..
mv linux-* linux-$VER #make use the dir-name corresponds to the patched-version
ln -s linux-$VER linux || exit 1
cd linux || exit 1

cd $PKGTMP/usr/src/linux || exit 1


############################################################### PATCHING
echo "bootsplash"
#Nodig voor splashscreen
#patch -p1 < $CWD/fbsplash-0.9.2-r5-2.6.16.patch || exit 1
#patch -p1 < $CWD/fbsplash-0.9.2-r5-2.6.18-rc4.patch || exit 1
#patch -p1 < $CWD/fbsplash-0.9.2-r5-2.6.23-rc2.patch || exit 1
#fbsplash is hernoemd naar fbcondecor
#patch -F3 -p1 < $CWD/fbcondecor-0.9.4-2.6.27.patch || exit 1
#patch -p1 < $CWD/fbcondecor-0.9.6-3.5-rc3.patch || exit 1
#patch -p1 < $CWD/fbcondecor-3.14b.patch || exit 1
#patch -F3 -p1 < $CWD/fbcondecor-3.15.patch || exit 1
#patch  -p1 < $CWD/fbcondecor-3.19.patch || exit 1

#from https://dev.gentoo.org/~mpagano/genpatches/patches-4.9-143.html
#https://dev.gentoo.org/~mpagano/genpatches/patches-4.14-182.html
#patch  -F3 -p1 < $CWD/4200_fbcondecor.patch || exit 1
#from https://raw.githubusercontent.com/jirka-grunt/fbcondecor/master/fbcondecor-5.10.patch
patch   -p1 < $CWD/fbcondecor-5.10.patch || exit 1


echo "IMQ (for traffic shaping)"
#patch -p1 < $CWD/linux-2.6.27.21-imq-test3.diff || exit 1
#patch -p1 < $CWD/patch-imqmq-3.3.diff || exit 1
#patch -p1 -F3 < $CWD/linux-3.13-imq.diff || exit 1
#patch -p1 -F3 < $CWD/linux-3.13.10_hardened_gentoo.diff || exit 1
#patch -p1  < $CWD/linux-4.4.5-imq.diff || exit 1
#patch -p1  < $CWD/linux-4.9-imq.diff || exit 1
#from https://raw.githubusercontent.com/imq/linuximq/master/kernel/v4.x/linux-4.14-imq.diff
#patch -p1  < $CWD/linux-4.14-imq.diff || exit 1
#from https://raw.githubusercontent.com/imq/linuximq/master/kernel/v5.x/linux-5.9-imq.patch
patch -p1 < $CWD/linux-5.9-imq.patch || exit 1


################################################################# CONFIGURE
echo "* kernel configureren"
cp $CWD/config $PKGTMP/usr/src/linux/.config || exit 1
cd $PKGTMP/usr/src/linux || exit 1



#rename extra version, er mogen geen streepjes inkomen ivm syn3 packaging
sed '/^EXTRAVERSION = /s/-/_/g' Makefile > Makefile.new || exit 1
mv Makefile.new Makefile || exit 1


#configfiles fixen
#Als deze wat vraagt, gewoon antwoorden en dan de resultaerende .config naar de svn config kopieren!
make oldconfig  || exit 1

#nodig om version.h en zo te fix0rren
make prepare || exit 1

#nodig om modules te bakken
make scripts || exit 1


################################################################ PACKAGE

#versie is nu anders omdat kernel gepatched en configged is:
KVER="`cat include/config/kernel.release`"

echo "* inpakken kernel_src"
cd $PKGTMP || exit 1
makepkg -l y -c n $CWD/$NAME.pkg &>/dev/null ||exit 1
echo $KVER > $CWD/$NAME.version &&
arch > $CWD/$NAME.arch