# Maintainer: shivik <>
# Contributor: Michael Duell <mail@akurei.me> PGP-Key: 6EE23EBE

###########################################################################################################
#                                          Patch and Build Options
###########################################################################################################
_custom="no"	# "m":	custom config via menuconfig
		# "n":	custom config via nconfig
		# "x":	custom config via xconfig
		# "no":	nothing

_config="pkg"	# "local":  make localmod config - compile only probed modules
		# "nomod":  don't use modules(make localyesconfig)
		# "old":    make with old config (/proc/config.gz)
		# "pkg":    use this package's config

pkgdesc='Linux Kernel and modules with Liquorix patches'
_basekernel=3.4
_minor=4
pkgver=${_basekernel}.${_minor}
pkgrel=2
_kernelname=-lqx
pkgname=linux${_kernelname}
_lqxpatchname="${pkgver}-${pkgrel}.patch"
arch=('i686' 'x86_64')
license=('GPL2')
groups=('base')
url="http://liquorix.net/"
if [ "$_custom" = "x" ]; then
   makedepends=('qt')
fi
options=(!strip)
install='linux-lqx.install'
#http://liquorix.net/sources/${_basekernel}/config.i386
#http://liquorix.net/sources/${_basekernel}/config.amd64
source=(ftp://ftp.kernel.org/pub/linux/kernel/v3.x/linux-${_basekernel}.tar.xz
http://liquorix.net/sources/${_lqxpatchname}.gz
http://liquorix.net/sources/${_basekernel}/config.i386
http://liquorix.net/sources/${_basekernel}/config.amd64
linux-lqx.preset)

sha512sums=('1c49b336750c9c2b49d21e54126f22a800367296be0d57e6df28b1532cbeba7fc3bdf4cfe27d9810576e76c2db2e9c2493f0804451c915137cb78d7aa61f236c'
	    '23ed94b243023a5b0dbce9eef164bf489db71d04849fc4ac85316a47f4aef3f16fefa98501edc9c7941d74a794650da4817d33804296ed4879d3e5b97bf4c555'
            '0e717c71cac56bb7db35adbb30eb31638a44f1d41c24af0bac0928d6e9ffb23684288930fd58ef0696d9dc23a9111ec996c45dd72a71a0e2e7fc8f8bfe7b22d0'
            'dfa224e0d4263e60b1d094dcebd59a4cea61e231108a7e480cd3d9e2d180d8ea82c108e76c872fd289766ce53409bd06d6db1f7338b51187af0e4ec99c80aba8'
            'fe4dcd7b5ec06ec3ec4aa631531469f58f6a7111e2d33affa98a1b8a8d230c5fa7e25ffdf770fe5ce61f249b0ec0ecd69df2858c4029acee0efaadff957858fe')

build() {
  KARCH=x86
  #sed -i -re "s/^(.EXTRAVERSION).*$/\1 = /" "${_lqxpatchname}"
  #sed -i -re "s/^(.SUBLEVEL).*$/\1 = /" "${_lqxpatchname}"
  cd ${srcdir}/linux-${_basekernel}

  # Add Liquorix patches
  patch -Np1 -i ${srcdir}/$_lqxpatchname
   
  # Trying oldcfg if possible and if selected
  if [ "$_config" = "old" ]; then
    if [ -e /proc/config.gz ]; then
      zcat /proc/config.gz > ./.config
    else
      echo "WARNING: There's no /proc/config.gz... You cannot use the old config. Aborting..."
      exit 1
    fi         
  else
    if [ "$CARCH" = "x86_64" ]; then
      cat ../config.amd64 >./.config
    else
      cat ../config.i386 >./.config
    fi
  fi

  if [ "${_kernelname}" != "" ]; then
    sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
  fi

  # set extraversion to pkgrel
  sed -ri "s|^(EXTRAVERSION =).*|\1 -${pkgrel}|" Makefile
  # don't run depmod on 'make install'. We'll do this ourselves in packaging
  sed -i '2iexit 0' scripts/depmod.sh
  # set sublevel to kernel minor version
  sed -ri "s|^(SUBLEVEL =).*|\1 ${_minor}|" Makefile

  msg "Running make prepare"
  make prepare

### Optionally load needed modules for the make localmodconfig
 # See http://aur.archlinux.org/packages.php?ID=41689
 if [ $_config = "local" ]; then
  msg "If you have modprobe_db installed, running it in recall mode now"
  if [ -e /usr/bin/modprobed_db ]; then
    [[ ! -x /usr/bin/sudo ]] && echo "Cannot call modprobe with sudo. Install via pacman -S sudo and configure to work with this user." && exit 1
    sudo /usr/bin/modprobed_db recall
 fi
  msg "Running Steven Rostedt's make localmodconfig now"
  make localmodconfig
 else
  yes "" | make config
 fi

 if [ $_config = "nomod" ]; then
  msg "Running localYESconfig now"
  make localyesconfig
 else
  yes "" | make config
 fi

  if [ $_custom = "m" ]; then
    msg "Running make menuconfig"
    make menuconfig
  fi

  if [ $_custom = "n" ]; then
    msg "Running make nconfig"
    make nconfig
  fi

  if [ $_custom = "x" ]; then
    msg "Running make xconfig"
    make xconfig
  fi

  # build!
  make ${MAKEFLAGS} bzImage modules

}

package_linux-lqx() {
pkgdesc="Linux kernel and modules with Liquorix patches"
depends=('coreutils' 'linux-firmware' 'module-init-tools>=3.16' 'mkinitcpio>=0.8')
optdepends=('crda: to set the correct wireless channels of your country' 'nvidia-lqx: nVidia drivers for linux-lqx')
provides=('linux-headers' "linux=$pkgver") # for when you have no other kernel
#provides=("linux-lqx=${pkgver}")
conflicts=('kernel26-lqx')
replaces=('kernel26-lqx')
backup=("etc/mkinitcpio.d/linux-lqx.preset")
install=linux-lqx.install

cd "${srcdir}/linux-${_basekernel}"

KARCH=x86

# get kernel version
_kernver="$(make kernelrelease)"

mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot}
make INSTALL_MOD_PATH="${pkgdir}" modules_install
cp arch/$KARCH/boot/bzImage "${pkgdir}/boot/vmlinuz-linux-lqx"

# add vmlinux
install -D -m644 vmlinux "${pkgdir}/usr/src/linux-${_kernver}/vmlinux"

# install fallback mkinitcpio.conf file and preset file for kernel
install -D -m644 "${srcdir}/linux-lqx.preset" "${pkgdir}/etc/mkinitcpio.d/linux-lqx.preset"

# set correct depmod command for install
sed \
	-e  "s/KERNEL_NAME=.*/KERNEL_NAME=-lqx/g" \
	-e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
	-i "${startdir}/linux-lqx.install"
sed \
	-e "s|ALL_kver=.*|ALL_kver=\"/boot/vmlinuz-linux-lqx\"|g" \
	-e "s|default_image=.*|default_image=\"/boot/initramfs-linux-lqx.img\"|g" \
	-e "s|fallback_image=.*|fallback_image=\"/boot/initramfs-linux-lqx-fallback.img\"|g" \
	-i "${pkgdir}/etc/mkinitcpio.d/linux-lqx.preset"

# remove build and source links
rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
# remove the firmware
rm -rf "${pkgdir}/lib/firmware"
# gzip -9 all modules to save 100MB of space
find "${pkgdir}" -name '*.ko' -exec gzip -9 {} \;
# make room for external modules
ln -s "../extramodules-${_basekernel}${_kernelname:lqx}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
# add real version for building modules and running depmod from post_install/upgrade
mkdir -p "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:lqx}"
echo "${_kernver}" > "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:lqx}/version"

# move module tree /lib -> /usr/lib
mv "$pkgdir/lib" "$pkgdir/usr"

# Now we call depmod...
depmod -b "$pkgdir" -F System.map "$_kernver"

##mkdir -p "${pkgdir}/lib/modules/${_kernver}"
install -dm755 "${pkgdir}/usr/lib/modules/${_kernver}"

##cd "${pkgdir}/lib/modules/${_kernver}"
##ln -sf ../../../usr/src/linux-${_kernver} build
cd "${pkgdir}/usr/lib/modules/${_kernver}"
ln -sf ../../../src/linux-${_kernver} build


cd "${srcdir}/linux-${_basekernel}"
install -D -m644 Makefile \
	"${pkgdir}/usr/src/linux-${_kernver}/Makefile"
install -D -m644 kernel/Makefile \
	"${pkgdir}/usr/src/linux-${_kernver}/kernel/Makefile"
install -D -m644 .config \
	"${pkgdir}/usr/src/linux-${_kernver}/.config"

mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include"

for i in acpi asm-generic config crypto drm generated linux math-emu \
	media net pcmcia scsi sound trace video xen; do
cp -a include/${i} "${pkgdir}/usr/src/linux-${_kernver}/include/"
	done

	# copy arch includes for external modules
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/arch/x86"
	cp -a arch/x86/include "${pkgdir}/usr/src/linux-${_kernver}/arch/x86/"

	# copy files necessary for later builds, like nvidia and vmware
	cp Module.symvers "${pkgdir}/usr/src/linux-${_kernver}"
	cp -a scripts "${pkgdir}/usr/src/linux-${_kernver}"

	# fix permissions on scripts dir
	chmod og-w -R "${pkgdir}/usr/src/linux-${_kernver}/scripts"
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/.tmp_versions"

	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/kernel"

	cp arch/${KARCH}/Makefile "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/"

	if [ "${CARCH}" = "i686" ]; then
		cp arch/${KARCH}/Makefile_32.cpu "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/"
	fi

	cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/kernel/"

	# add headers for lirc package
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video"

	cp drivers/media/video/*.h  "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/"

	for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102; do
		mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/${i}"
		cp -a drivers/media/video/${i}/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/${i}"
	done

	# add docbook makefile
	install -D -m644 Documentation/DocBook/Makefile \
		"${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile"

	# add dm headers
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/md"
	cp drivers/md/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/md"

	# add inotify.h
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include/linux"
	cp include/linux/inotify.h "${pkgdir}/usr/src/linux-${_kernver}/include/linux/"

	# add wireless headers
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/"
	cp net/mac80211/*.h "${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/"

	# add dvb headers for external modules
	# in reference to:
	# http://bugs.archlinux.org/task/9912
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core"
	cp drivers/media/dvb/dvb-core/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core/"
	# and...
	# http://bugs.archlinux.org/task/11194
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/"
	[[ -e include/config/dvb/ ]] && cp include/config/dvb/*.h "${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/" 

	# add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
	# in reference to:
	# http://bugs.archlinux.org/task/13146
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"
	cp drivers/media/dvb/frontends/lgdt330x.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"
	cp drivers/media/video/msp3400-driver.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"

	# add dvb headers
	# in reference to:
	# http://bugs.archlinux.org/task/20402
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb"
	cp drivers/media/dvb/dvb-usb/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb/"
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends"
	cp drivers/media/dvb/frontends/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners"
	cp drivers/media/common/tuners/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners/"

	# add xfs and shmem for aufs building
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/fs/xfs"
	mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/mm"
	cp fs/xfs/xfs_sb.h "${pkgdir}/usr/src/linux-${_kernver}/fs/xfs/xfs_sb.h"

	# copy in Kconfig files
	for i in `find . -name "Kconfig*"`; do
		mkdir -p "${pkgdir}"/usr/src/linux-${_kernver}/`echo ${i} | sed 's|/Kconfig.*||'`
		cp ${i} "${pkgdir}/usr/src/linux-${_kernver}/${i}"
	done

	chown -R root.root "${pkgdir}/usr/src/linux-${_kernver}"
	find "${pkgdir}/usr/src/linux-${_kernver}" -type d -exec chmod 755 {} \;

	# strip scripts directory
	find "${pkgdir}/usr/src/linux-${_kernver}/scripts" -type f -perm -u+w 2>/dev/null | while read binary ; do
	case "$(file -bi "${binary}")" in
		*application/x-sharedlib*) # Libraries (.so)
			/usr/bin/strip ${STRIP_SHARED} "${binary}";;
		*application/x-archive*) # Libraries (.a)
			/usr/bin/strip ${STRIP_STATIC} "${binary}";;
		*application/x-executable*) # Binaries
			/usr/bin/strip ${STRIP_BINARIES} "${binary}";;
	esac
done

# remove unneeded architectures
rm -rf "${pkgdir}"/usr/src/linux-${_kernver}/arch/{alpha,arm,arm26,avr32,blackfin,cris,frv,h8300,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,parisc,powerpc,ppc,s390,sh,sh64,sparc,sparc64,um,v850,xtensa}
}