# Description: Open source version of Google Chrome web browser.
# URL: http://chromium.org/
# Arch Maintainer: CRUX-ARM System Team, devel at crux-arm dot nu
# Maintainer: Jose V Beneyto, sepen at crux dot nu
# Packager: Tadeusz Sosnierz, tadzikes gmail com
# Depends on: dbus-glib gperf gtk gtk3 libevent libexif libgcrypt ninja nodejs nss pciutils speech-dispatcher xorg-libxscrnsaver xorg-libxt yasm

name=chromium
version=64.0.3282.119
release=1
source=(https://commondatastorage.googleapis.com/$name-browser-official/$name-$version.tar.xz
  chromium-build-toolchain.patch
  last-commit-position.patch $name.sh
  chromium-64.0.3282.119-constexpr-1.patch
  chromium-exclude_unwind_tables.patch
  chromium-use-fromUTF8-for-UnicodeString-construction.patch
  chromium-omnibox-unescape-fragment.patch
  chromium-skia-harmony.patch
  chromium-memcpy-r0.patch
  chromium-clang-r2.patch
  chromium-cups-r0.patch)

build() {
  cd $name-$version

  if [ -n "$(pkginfo -i | grep '^ccache ')" ]; then
    # Avoid falling back to preprocessor mode when sources contain time macros
    export CCACHE_SLOPPINESS=time_macros
  fi

  export CFLAGS="-O2 -pipe -mfloat-abi=hard"

  export CFLAGS="$CFLAGS $(pkg-config --cflags nspr) -lpthread"
  export LDFLAGS="$LDFLAGS $(pkg-config --libs nspr)"
  
  # determine some flags depending on SOC
  USE_ARMV7=0; USE_ARM_THUMB=0; USE_ARM_NEON=0
  case $(uname -m) in
      armv7*) USE_ARMV7=1; USE_ARM_THUMB=1;;
  esac
  for flag in $CFLAGS; do
    case $flag in
      -mfpu=neon*) USE_ARM_NEON=1;;
    esac
  done

  # we don't use git sources
  patch -p1 -i $SRC/last-commit-position.patch

  # Corrects error call to non-constexpr function
  patch -p1 -i $SRC/chromium-64.0.3282.119-constexpr-1.patch

  wget https://chromium.googlesource.com/chromium/src.git/+/$version?format=TEXT -O ../chromium-$version.txt
  # https://crbug.com/710701
  local _chrome_build_hash=$(base64 -d ../chromium-$version.txt |
    grep -Po '^parent \K[0-9a-f]{40}$')
  if [[ -z $_chrome_build_hash ]]; then
    error "Unable to find Chrome build hash."
  return 1
  fi
  echo "LASTCHANGE=$_chrome_build_hash-" >build/util/LASTCHANGE

  # https://chromium-review.googlesource.com/c/chromium/src/+/712575
  patch -p1 -i $SRC/chromium-exclude_unwind_tables.patch

  # https://crbug.com/772655
  patch -p1 -i $SRC/chromium-use-fromUTF8-for-UnicodeString-construction.patch

  # https://crbug.com/789163
  patch -p1 -i $SRC/chromium-omnibox-unescape-fragment.patch

  # https://crbug.com/skia/6663#c10
  patch -p4 -i $SRC/chromium-skia-harmony.patch

  # Fixes from Gentoo
  patch -p1 -i $SRC/chromium-memcpy-r0.patch
  patch -p1 -i $SRC/chromium-clang-r2.patch
  patch -p1 -i $SRC/chromium-cups-r0.patch

  mkdir -p third_party/node/linux/node-linux-x64/bin
  ln -s /usr/bin/node third_party/node/linux/node-linux-x64/bin/

  # Let's fix the toolchain
  patch -p0 -i $SRC/$name-build-toolchain.patch

  _gn_args=(
    'blink_gc_plugin=false'
    'clang_use_chrome_plugins=false'
    'enable_hangout_services_extension=true'
    'enable_nacl=false'
    'enable_swiftshader=false'
    'fatal_linker_warnings=false'
    'ffmpeg_branding="Chrome"'
    'is_clang=false'
    'is_debug=false'
    'linux_use_bundled_binutils=false'
    'use_custom_libcxx=false'
    'proprietary_codecs=true'
    'remove_webcore_debug_symbols=true'
    'symbol_level=0'
    'treat_warnings_as_errors=false'
    'use_allocator="none"'
    'use_cups=false'
    'use_gconf=false'
    'use_gnome_keyring=false'
    'use_gold=false'
    'use_gtk3=true'
    'use_kerberos=false'
    'use_pulseaudio=false'
    'use_sysroot=false'
  )

  /usr/bin/python2 tools/gn/bootstrap/bootstrap.py --gn-gen-args="${_gn_args[*]}"
  out/Release/gn gen out/Release --args="${_gn_args[*]}" --script-executable=/usr/bin/python2

  ninja -j ${JOBS-1} -C out/Release chrome chrome_sandbox
 
  install -m 0755 -D out/Release/chrome $PKG/usr/lib/$name/$name
  install -m 4755 -o root -g root -D out/Release/chrome_sandbox $PKG/usr/lib/$name/chrome-sandbox
  install -m 0644 -D out/Release/*.pak $PKG/usr/lib/$name
  install -d $PKG/usr/lib/$name/locales
  install -m 0644 out/Release/locales/en-US.pak $PKG/usr/lib/$name/locales
  cp -a out/Release/resources $PKG/usr/lib/$name

  install -m 0644 -D chrome/installer/linux/common/desktop.template $PKG/usr/share/applications/$name.desktop
  install -m 0644 -D chrome/app/resources/manpage.1.in $PKG/usr/share/man/man1/$name.1

  sed -i \
    -e "s/@@MENUNAME@@/Chromium/g" \
    -e "s/@@PACKAGE@@/chromium/g" \
    -e "s/@@USR_BIN_SYMLINK_NAME@@/chromium/g" \
    $PKG/usr/share/applications/$name.desktop \
    $PKG/usr/share/man/man1/$name.1

  # fix v8 natives
  cp -a out/Release/{natives,snapshot}_blob.bin $PKG/usr/lib/$name

  for size in 16 32; do
    install -m 0644 -D chrome/app/theme/default_100_percent/$name/product_logo_${size}.png \
    $PKG/usr/share/icons/hicolor/${size}x${size}/apps/$name.png
  done

  for size in 22 24 48 64 128 256; do
    install -m 0644 -D chrome/app/theme/$name/product_logo_${size}.png \
    $PKG/usr/share/icons/hicolor/${size}x${size}/apps/$name.png
  done

  # fix icu installation
  install -m 0644 -D out/Release/icudtl.dat $PKG/usr/lib/$name/icudtl.dat

  install -m 0755 -D $SRC/$name.sh $PKG/usr/bin/$name

}