# Maintainer: sfs <sfslinux@gmail.com>
pkgbase=linux-aufs-zen2
s=zen2
pkgver=6.18.2
pkgrel=1
pkgdesc="Nocsak's zen-patched HUGE AUFS kernel for Puppy Linux"
url='https://sourceforge.net/projects/nocsax'
arch=(x86_64)
makedepends=(
  squashfs-tools
)
options=(
  !debug
  !strip
)
_srcname=linux-$pkgver
_srctag=v$pkgver
source=(
    https://sourceforge.net/projects/nocsax/files/zen-patched-huge-kernels/Untested/k6.18.2-zen2-x86_64/huge-k6.18.2-zen2-x86_64-usrmerged-erofs-aufs-overlayfs-voluntary1000hz.tar.bz2
    https://sourceforge.net/projects/nocsax/files/zen-patched-huge-kernels/Untested/k6.18.2-zen2-x86_64/kernel_sources-6.18.2-usrmerged-tripup64.sfs
)
validpgpkeys=(
  ABAF11C65A2970B130ABE3C479BE3E4300411886  # Linus Torvalds
)
# https://www.kernel.org/pub/linux/kernel/v6.x/sha256sums.asc
sha256sums=( 'SKIP' )
export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"

prepare() {
    k="$(basename `ls -1 kernel-modules*.sfs` .sfs)"
    mkdir $k && sudo mount $k.sfs $k
    h="$(basename `ls -1 kernel_sources*.sfs` .sfs)"
    mkdir $h && sudo mount $h.sfs $h
#    unsquashfs kernel-modules*.sfs
#    unsquashfs kernel_sources*.sfs
}


_package() {
  pkgdesc="The $pkgdesc kernel and modules"
  license=(
    'Apache-2.0 OR MIT'

    'BSD-2-Clause OR GPL-2.0-or-later'

    BSD-3-Clause
    'BSD-3-Clause OR GPL-2.0-only'
    'BSD-3-Clause OR GPL-2.0-or-later'
    BSD-3-Clause-Clear

    GPL-1.0-or-later
    'GPL-1.0-or-later OR BSD-3-Clause'

    GPL-2.0-only
    'GPL-2.0-only OR Apache-2.0'
    'GPL-2.0-only OR BSD-2-Clause'
    'GPL-2.0-only OR BSD-3-Clause'
    'GPL-2.0-only OR CDDL-1.0'
    'GPL-2.0-only OR Linux-OpenIB'
    'GPL-2.0-only OR MIT'
    'GPL-2.0-only OR MPL-1.1'
    'GPL-2.0-only OR X11'
    'GPL-2.0-only WITH Linux-syscall-note'

    GPL-2.0-or-later
    'GPL-2.0-or-later OR BSD-2-Clause'
    'GPL-2.0-or-later OR BSD-3-Clause'
    'GPL-2.0-or-later OR MIT'
    'GPL-2.0-or-later OR X11'
    'GPL-2.0-or-later WITH GCC-exception-2.0'

    ISC

    LGPL-2.0-or-later
    'LGPL-2.1-only'
    'LGPL-2.1-only OR BSD-2-Clause'

    LGPL-2.1-or-later

    MIT
    MPL-1.1
    X11
    Zlib
  )
  depends=(
    coreutils
    initramfs
    kmod
  )
  optdepends=(
    'wireless-regdb: to set the correct wireless channels of your country'
    'linux-firmware: firmware images needed for some devices'
    'scx-scheds: to use sched-ext schedulers'
  )
  provides=(
    KSMBD-MODULE
    VIRTUALBOX-GUEST-MODULES
    WIREGUARD-MODULE
  )
  replaces=(
    wireguard-lts
  )

#  cd $_srcname
  local modulesdir="$pkgdir/usr/lib/modules/$pkgver-$s"

  echo "Installing boot image..."
  # systemd expects to find the kernel here to allow hibernation
  # https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
  install -Dm644 "$srcdir/`ls -1 vmlinuz-*`" "$modulesdir/vmlinuz"

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

  echo "Installing modules..."
  k="$(basename `ls -1 kernel-modules*.sfs` .sfs)"
  mkdir -p $modulesdir &&
  cp -dr --no-preserve=ownership $k/usr/lib/modules/$pkgver-$s "${pkgdir}"/usr/lib/modules/

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

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

_package-headers() {
  pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"
  license=(
    BSD-3-Clause
    'BSD-3-Clause OR GPL-2.0-only'

    GPL-1.0-or-later
    'GPL-1.0-or-later WITH Linux-syscall-note'

    GPL-2.0-only
    'GPL-2.0-only OR Apache-2.0'
    'GPL-2.0-only OR BSD-2-Clause'
    'GPL-2.0-only OR BSD-3-Clause'
    'GPL-2.0-only OR CDDL-1.0'
    'GPL-2.0-only OR Linux-OpenIB'
    'GPL-2.0-only OR Linux-OpenIB OR BSD-2-Clause'
    'GPL-2.0-only OR MIT'
    'GPL-2.0-only OR MPL-1.1'
    'GPL-2.0-only OR X11'
    'GPL-2.0-only WITH Linux-syscall-note'
    '(GPL-2.0-only WITH Linux-syscall-note) AND MIT'
    '(GPL-2.0-only WITH Linux-syscall-note) OR BSD-2-Clause'
    '(GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause'
    '(GPL-2.0-only WITH Linux-syscall-note) OR CDDL-1.0'
    '(GPL-2.0-only WITH Linux-syscall-note) OR Linux-OpenIB'
    '(GPL-2.0-only WITH Linux-syscall-note) OR MIT'

    GPL-2.0-or-later
    'GPL-2.0-or-later OR BSD-2-Clause'
    'GPL-2.0-or-later OR BSD-3-Clause'
    'GPL-2.0-or-later OR MIT'
    'GPL-2.0-or-later WITH Linux-syscall-note'
    '(GPL-2.0-or-later WITH Linux-syscall-note) OR BSD-3-Clause'
    '(GPL-2.0-or-later WITH Linux-syscall-note) OR MIT'
    'LGPL-2.0-or-later OR BSD-2-Clause'
    'LGPL-2.0-or-later WITH Linux-syscall-note'

    ISC

    'LGPL-2.0-or-later WITH Linux-syscall-note'
    'LGPL-2.0-or-later OR BSD-2-Clause'

    LGPL-2.1-only
    'LGPL-2.1-only OR BSD-2-Clause'
    'LGPL-2.1-only OR MIT'
    'LGPL-2.1-only WITH Linux-syscall-note'

    LGPL-2.1-or-later
    'LGPL-2.1-or-later OR BSD-2-Clause'
    'LGPL-2.1-or-later WITH Linux-syscall-note'

    MIT
    Zlib
  )
	depends=(pahole)
#	_srcname=linux-${pkgver%.*}
h="$(basename `ls -1 kernel_sources*.sfs` .sfs)"
_srcname=$srcdir/$h/usr/src/linux #-${pkgver}
	cd "${_srcname}"
  #local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
  local builddir="${pkgdir}/usr/lib/modules/$(make -s kernelrelease)/build"

  echo "Installing build files..."
  install -Dt "$builddir" -m644 .config Makefile Module.symvers #System.map \
#    localversion.* version vmlinux tools/bpf/bpftool/vmlinux.h
  install -Dt "$builddir/kernel" -m644 kernel/Makefile
  install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile
  cp -t "$builddir" -a scripts
  ln -srt "$builddir" "$builddir/scripts/gdb/vmlinux-gdb.py"

  # required when STACK_VALIDATION is enabled
  install -Dt "$builddir/tools/objtool" tools/objtool/objtool

  # required when DEBUG_INFO_BTF_MODULES is enabled
##  install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids

  echo "Installing headers..."
  cp -t "$builddir" -a include
  cp -t "$builddir/arch/x86" -a arch/x86/include
  install -Dt "$builddir/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
X(){
  install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
  install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h

  # https://bugs.archlinux.org/task/13146
  install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h

  # https://bugs.archlinux.org/task/20402
  install -Dt "$builddir/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
  install -Dt "$builddir/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
  install -Dt "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h

  # https://bugs.archlinux.org/task/71392
  install -Dt "$builddir/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h
}
  echo "Installing KConfig files..."
  find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;

  echo "Removing unneeded architectures..."
  local arch
  for arch in "$builddir"/arch/*/; do
    [[ $arch = */x86/ ]] && continue
    echo "Removing $(basename "$arch")"
    rm -r "$arch"
  done

  echo "Removing documentation..."
#  rm -r "$builddir/Documentation"

  echo "Removing broken symlinks..."
  find -L "$builddir" -type l -printf 'Removing %P\n' -delete

  echo "Removing loose objects..."
  find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete

  echo "Stripping build tools..."
  local file
  while read -rd '' file; do
    case "$(file -Sib "$file")" in
      application/x-sharedlib\;*)      # Libraries (.so)
        strip -v $STRIP_SHARED "$file" ;;
      application/x-archive\;*)        # Libraries (.a)
        strip -v $STRIP_STATIC "$file" ;;
      application/x-executable\;*)     # Binaries
        strip -v $STRIP_BINARIES "$file" ;;
      application/x-pie-executable\;*) # Relocatable binaries
        strip -v $STRIP_SHARED "$file" ;;
    esac
  done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)

##  echo "Stripping vmlinux..."
##  strip -v $STRIP_STATIC "$builddir/vmlinux"

  echo "Adding symlink..."
  mkdir -p "$pkgdir/usr/src"
#  ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
  ln -sr "$builddir" "$pkgdir/usr/src/linux"

  # licenses
#  install -vDm 644 LICENSES/deprecated/{ISC,Linux-OpenIB,X11,Zlib} -t "$pkgdir/usr/share/licenses/$pkgname/"
#  install -vDm 644 LICENSES/preferred/{BSD*,MIT} -t "$pkgdir/usr/share/licenses/$pkgname/"
#  install -vDm 644 LICENSES/exceptions/* -t "$pkgdir/usr/share/licenses/$pkgname/"

  echo "Umount $srcdir ..."
  cd $srcdir
    k="$(basename `ls -1 kernel-modules*.sfs` .sfs)"
    h="$(basename `ls -1 kernel_sources*.sfs` .sfs)"
sudo umount $srcdir/$k
sudo umount $srcdir/$h
}

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