# Maintainer: Jaron Kent-Dobias <jaron@kent-dobias.com>
# Contributor: Vasily Khoruzhick <anarsoul@gmail.com>
# Contributor: Jan Alexander Steffens (heftig) <heftig@archlinux.org>

pkgbase=linux-pinephone
pkgver=6.12.8.megi1
pkgrel=1
pkgdesc='Pinephone Linux'
url='https://git.kent-dobias.com/system/linux'
arch=(aarch64)
license=(GPL2)
makedepends=(
  bc
  cpio
  gettext
  libelf
  pahole
  perl
  python
  tar
  xz

  dtc
  clang
  llvm
  lld
)
options=('!strip')
_srcname=kentdobias-linux
_srctag=v${pkgver%.*}-${pkgver##*.}
source=(
  "$_srcname::git+file:///home/pants/dev/linux?signed#tag=$_srctag"
  config  # the main kernel config file
  dts-pinephone-drop-modem-power-node.patch
  0001-arm64-dts-allwinner-a64-h5-Add-CPU-idle-states.patch
)
validpgpkeys=(
  ABAF11C65A2970B130ABE3C479BE3E4300411886  # Linus Torvalds
  647F28654894E3BD457199BE38DBBDC86092693E  # Greg Kroah-Hartman
  A2FF3A36AAA56654109064AB19802F8B0D70FC30  # Jan Alexander Steffens (heftig)
  0E3A444DD0760E65901BF59679E824090BD31086  # Jaron Kent-Dobias
)
# https://www.kernel.org/pub/linux/kernel/v6.x/sha256sums.asc
sha256sums=('bc55e72ec8656c9d6f9af7d1a55a91b61c00a88a180d14915ab20fb41def2c19'
            'a2c3b02ecc3d6b00205685f61ce5063e0b185e065a92580be35d7a9a1f5c222e'
            '4438dbb4fc8dd2788da95615cc97394591a6f5dc54851860f912c62fcc934973'
            'b63e4474efea0bfa183e3c6c1e65eadb096f9c06d60b6644f9b2db899e2d2061')
b2sums=('25ae4ea2c832b187a296a4feb68a2a1b91619047f67dd08516b9d0a9d3677da693d82839d6caa2580b7314947bb7c5f825c9eec21a1a38cf047e1e06e591d396'
        '4110686ed87c1f188d310d154ae506686edf4faccb521b473889eb1d68551a32bc7adde181a58d4f44e8f1ecf80fd51ccbb20bcd29803f28a5cd0ed83344528e'
        'a36eeb201687707a2662158c8ef8920609446d80315d18be4edb94cc5765743dcda0d98548779f2501a7eee4cba1713837dc5ecc5310c977edd3fd678f558414'
        'cb15e6c21c4770226869149099b46c2b20819ae4d66cdf1a8e02c782b451503fef4289fa00a4c0fc4ef60b09cf608c8aff7658fe8e0cbd6471446f75937c4758')

export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
export ARCH=arm64
export LLVM=1

prepare() {
  cd $_srcname

  echo "Setting version..."
  echo "-$pkgrel" > localversion.10-pkgrel
  echo "${pkgbase#linux}" > localversion.20-pkgname

  local src
  for src in "${source[@]}"; do
    src="${src%%::*}"
    src="${src##*/}"
    src="${src%.zst}"
    [[ $src = *.patch ]] || continue
    echo "Applying patch $src..."
    patch -Np1 < "../$src"
  done

  echo "Setting config..."
  cp ../config .config
  make olddefconfig
  diff -u ../config .config || :

  make -s kernelrelease > version
  echo "Prepared $pkgbase version $(<version)"
}

build() {
  cd $_srcname
  make all
# make htmldocs
}

_package() {
  pkgdesc="The $pkgdesc kernel and modules"
  depends=(
    coreutils
    initramfs
    kmod
  )
  optdepends=(
    'wireless-regdb: to set the correct wireless channels of your country'
    'linux-firmware: firmware images needed for some devices'
  )
  provides=(
    KSMBD-MODULE
    VIRTUALBOX-GUEST-MODULES
    WIREGUARD-MODULE
  )
  replaces=(
    virtualbox-guest-modules-arch
    wireguard-arch
  )

  cd $_srcname
  local modulesdir="$pkgdir/usr/lib/modules/$(<version)"

  echo "Installing boot image..."
  install -Dm644 arch/arm64/boot/Image "${pkgdir}/boot/Image"
  install -Dm644 arch/arm64/boot/Image.gz "${pkgdir}/boot/Image.gz"

  # systemd expects to find the kernel here to allow hibernation
  # https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
  install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"

  # Used by mkinitcpio to name the kernel
  echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"

  echo "Installing modules..."
  ZSTD_CLEVEL=19 make INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 \
    DEPMOD=/doesnt/exist modules_install  # Suppress depmod

  echo "Installing dtbs..."
  make INSTALL_DTBS_PATH="${pkgdir}/boot/dtbs" dtbs_install

  # remove build link
  rm "$modulesdir"/build
}

pkgname=("$pkgbase")
for _p in "${pkgname[@]}"; do
  eval "package_$_p() {
    $(declare -f "_package${_p#$pkgbase}")
    _package${_p#$pkgbase}
  }"
done

# vim:set ts=8 sts=2 sw=2 et: