# Maintainer: Yardena Cohen <yardenack at gmail dot com>
# tracks: https://projects.archlinux.org/svntogit/packages.git/log/trunk?h=packages/linux

pkgname=linux-linode
_basekernel=4.11
_kernelname=${pkgname#linux}
_srcname=linux-${_basekernel}
pkgver=${_basekernel}.8
pkgrel=1
arch=('i686' 'x86_64')
url="https://github.com/yardenac/linux-linode"
license=(GPL2)
makedepends=(xmlto docbook-xsl kmod inetutils bc libelf)
options=('!strip')
source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar."{xz,sign}
        "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}."{xz,sign}
        'config'
        'config.x86_64'
        '08_linux_linode'
        '98-linux-linode.hook'
        '99-grub-ll.hook'
        'menu.lst'
        'preset')
sha512sums=('6610eed97ffb7207c71771198c36179b8244ace7222bebb109507720e26c5f17d918079a56d5febdd8605844d67fb2df0ebe910fa2f2f53690daf6e2a8ad09c3' 'SKIP'
            '9fed139ec4658d373ea6f25b0cc0cd9384e3bf61a05d30a523c13d8b5e673b461cf3cc8d97da2c69ca3a6c718319529f7ccfd90ca38b81d68986b7e63f2db297' 'SKIP'
            'bc3b537d928347414d8a91776bc2cdffa038bc38ee95fc98f93f02881443c8138cf3a11db63b02e296906560d981101ff93dabe4f572a4b0c3f3af849065f195'
            'fa235e17e99d153525aa8675f4cc8d73f9352262a092133a19e920f090f1ee7347cbea1508391daf6cc4f688cf779336dae497d2038621afee1fd204b13b330f'
            '7a80f858c32a9dd62f43aba0b7119a1196869216117164bcde24ab46022e8a1bbe27821faa26ca690a1633a5a9fe324e98e5cdf14f37591d569cbc71f542482d'
            'c57a6c8d9978cb6a1034bed33ba5e06bef9b134f22113761798d4fa46e8091e7b0bd26f3a14d79122ba780b2f7a93ca26850f4da6a654f81b34cc79c242f683f'
            'db9080b2548e4dcd61eaaf20cd7d37cbbc8c204ce85a2e3408d0671f6b26010f77a61affd2c77e809768714eca29d3afb64765a3f2099317a2c928eff3feb4cf'
            '73cb4c064d8942fddaac48158b7e77d19afc1cb61f83936f21832ba7d7266ccfd3021114252edd5cec5542096204f48cf30544fd6bffff79bc94d96fabe74f52'
            '62870a08f000abfe8eb1f50271afdf04686af108554f7629dc5e1d7610ad14bdc9cd14d2609270b83f9edb745a520b81fa7bfb92ebcc28a146df040c895b549b')
sha256sums=('b67ecafd0a42b3383bf4d82f0850cbff92a7e72a215a6d02f42ddbafcf42a7d6' 'SKIP'
            'c390540524e9647efa3752550cb04b02f47a60a5d45f26d56a07cd8a67501929' 'SKIP'
            'a9e6aa18898bf71768f70e82e9ccac0fbd72524efb96f9d5686b32698506111b'
            '59316b8539109514b212cc746b0a5fe42a7a010e510918dfa730d8155f73b397'
            '7d56a81083d1468d90ebec97a44ec44f80f8cb87bd506ed1918d6664d6309ad5'
            '3efa91fcb4698bde0598678bbf9a4a747c011823af82704eed2c146ed7cd9734'
            '368fb58e7aa465f597e9a72da4b6eea4183c1a85242173412d54ad18d10d8fb3'
            'a055b6005a324240b35c416d9d08fba21c5f614eefb46f244035d04bf085224f'
            '29fa2c1ea75f55a61276496507b788b1a8bde1d7c16bee4f525651db34076e46')
md5sums=('251a5deee0fa6daf3f356b1bbda9eab8' 'SKIP'
         'fca793663570ab8849ac3930b909ba0a' 'SKIP'
         '968888df1aa7d0ad74b0a0b03354a86b'
         '509d824e6308a6f7618a2905f912c12f'
         'bc30565cf444b710c252675cf65fb46e'
         'c52c29a8502f6c75e309208f0afab11f'
         '625481f015365febcd65aa136ee555f9'
         '15fae1e2da901b937d284890fd91cfab'
         'e1b5255cfbf5f8ca79b4b4568feec801')
validpgpkeys=(
              'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linux Torvalds
              '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
)
pkgdesc="Kernel for Linode servers"
depends=('coreutils' 'linux-firmware' 'kmod' 'mkinitcpio>=0.7' 'grub')
provides=(linux)
conflicts=(grub-legacy)
backup=(etc/mkinitcpio.d/${pkgname}.preset boot/grub/menu.lst)
install=install

prepare() {
  cd "${srcdir}/${_srcname}"
  patch -p1 -i "${srcdir}/patch-${pkgver}"
  if [ "${CARCH}" = "x86_64" ]; then
    cat "${srcdir}/config.x86_64" > ./.config
  else
    cat "${srcdir}/config" > ./.config
  fi
  sed -i '2iexit 0' scripts/depmod.sh
  sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
  sed -i "s|CONFIG_LOCALVERSION_AUTO=.*|CONFIG_LOCALVERSION_AUTO=n|g" ./.config
  sed -ri "s|^(EXTRAVERSION =).*|\1 -${pkgrel}|" Makefile
  make prepare
}

build() {
  cd "${srcdir}/${_srcname}"
  CFLAGS=${CFLAGS}" -march=sandybridge -mtune=sandybridge "
  CXXFLAGS=${CXXFLAGS}" -march=sandybridge -mtune=sandybridge "
  [[ "$MAKEFLAGS" =~ -j[0-9]* ]] || MAKEFLAGS+=" -j$(nproc)"
  ionice -c 3 nice -n 16 make ${MAKEFLAGS} LOCALVERSION= bzImage modules
}

package_linux-linode() {
  KARCH=x86
  cd "${srcdir}/${_srcname}"
  _kernver="$(make LOCALVERSION= kernelrelease)"
  mkdir -p "${pkgdir}"/{lib/{modules,firmware},boot}
  make LOCALVERSION= INSTALL_MOD_PATH="${pkgdir}" modules_install
  rm -rf "${pkgdir}"/lib/{firmware,modules/${_kernver}/{source,build}}
  cp arch/$KARCH/boot/bzImage "${pkgdir}/boot/vmlinuzll-${pkgname}"
  install -D -m644 vmlinux "${pkgdir}/lib/modules/${_kernver}/build/vmlinux"
  install -D -m644 "${srcdir}/preset" "${pkgdir}/etc/mkinitcpio.d/${pkgname}.preset"
  install -D -m644 "${srcdir}/98-linux-linode.hook" "${pkgdir}/usr/share/libalpm/hooks/98-linux-linode.hook"
  install -D -m644 "${srcdir}/99-grub-ll.hook"      "${pkgdir}/usr/share/libalpm/hooks/99-grub-ll.hook"
  install -D -m755 "${srcdir}/08_linux_linode" "${pkgdir}/etc/grub.d/08_linux_linode"
  sed \
    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/" \
    -i "${startdir}/install"
  sed \
    -e "s|ALL_kver=.*|ALL_kver=\"/boot/vmlinuzll-${pkgname}\"|" \
    -e "s|default_image=.*|default_image=\"/boot/initramfs-${pkgname}.img\"|" \
    -e "s|fallback_image=.*|fallback_image=\"/boot/initramfs-${pkgname}-fallback.img\"|" \
    -i "${pkgdir}/etc/mkinitcpio.d/${pkgname}.preset"

  emdir="extramodules-${_basekernel}${_kernelname:--ARCH}"
  mkdir -p "${pkgdir}/lib/modules/${emdir}"
  ln -s "../${emdir}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
  echo "${_kernver}" >| "${pkgdir}/lib/modules/${emdir}/version"
  depmod -b "${pkgdir}" -F System.map "${_kernver}"
  mkdir -p "${pkgdir}/usr"
  mv "${pkgdir}/"{lib,usr/}
  mkdir -p ${pkgdir}/boot/grub
  sed "s/%VER%/${pkgver}-${pkgrel}/ig" ${srcdir}/menu.lst > ${pkgdir}/boot/grub/menu.lst
}