# Maintainer:  WorMzy Tykashi <wormzy.tykashi@gmail.com>
# Contributor: Iahwaacz
# Contributor: Evangelos Foutras <evangelos@foutrelis.com>
# Contributor: Pierre Schmitz <pierre@archlinux.de>
# Contributor: Jan "heftig" Steffens <jan.steffens@gmail.com>
# Contributor: Daniel J Griffiths <ghost1227@archlinux.us>

pkgname=chromium-gtk2
_pkgname=chromium
pkgver=63.0.3239.132
pkgrel=1
_launcher_ver=5
pkgdesc="A web browser built for speed, simplicity, and security (GTK2 version)"
arch=('i686' 'x86_64')
url="https://www.chromium.org/Home"
license=('BSD')
depends=('gtk2' 'nss' 'alsa-lib' 'xdg-utils' 'libxss' 'libcups' 'libgcrypt'
         'ttf-font' 'systemd' 'dbus' 'libpulse' 'pciutils' 'json-glib'
         'desktop-file-utils' 'hicolor-icon-theme')
makedepends=('python2' 'gperf' 'yasm' 'mesa' 'ninja' 'nodejs' 'git' 'clang'
             'lld')
optdepends=('pepper-flash: support for Flash content'
            'kdialog: needed for file dialogs in KDE'
            'gnome-keyring: for storing passwords in GNOME keyring'
            'kwallet: for storing passwords in KWallet')
provides=($_pkgname)
conflicts=($_pkgname)
install=chromium.install
source=(https://commondatastorage.googleapis.com/chromium-browser-official/$_pkgname-$pkgver.tar.xz
        chromium-launcher-$_launcher_ver.tar.gz::https://github.com/foutrelis/chromium-launcher/archive/v$_launcher_ver.tar.gz
        chromium-$pkgver.txt::https://chromium.googlesource.com/chromium/src.git/+/$pkgver?format=TEXT
        chromium-omnibox-unescape-fragment.patch
        chromium-disable-SharedArrayBuffer-by-default.patch
        chromium-skia-harmony.patch
        chromium-clang-r1.patch
        chromium-webrtc-r0.patch
        chromium-exclude_unwind_tables.patch
        chromium-widevine.patch
        fix-nav-button-layout.patch)
sha256sums=('84c46c2c42faaa102abe0647ee1213615a2522627124924c2741ddc2161b3d8d'
            '4dc3428f2c927955d9ae117f2fb24d098cc6dd67adb760ac9c82b522ec8b0587'
            'ab330f30c14ea3b5e77976d674304b91cfb02251fe8771cecb0bb4092c7f6b74'
            '814eb2cecb10cb697e24036b08aac41e88d0e38971741f9e946200764e2401ae'
            '1e040caa43ba34c627fe3750fb44c781a74298d010ef40657ab8deb4780db70b'
            'feca54ab09ac0fc9d0626770a6b899a6ac5a12173c7d0c1005bc3964ec83e7b3'
            'ab5368a3e3a67fa63b33fefc6788ad5b4a79089ef4db1011a14c3bee9fdf70c6'
            'bcb2f4588cf5dcf75cde855c7431e94fdcc34bdd68b876a90f65ab9938594562'
            'e53dc6f259acd39df13874f8a0f440528fae764b859dd71447991a5b1fac7c9c'
            'd6fdcb922e5a7fbe15759d39ccc8ea4225821c44d98054ce0f23f9d1f00c9808'
            '377cb60201a9bf6a095499273a1d96f43543a4f1dae62e591748eec5c652cf52')

# Possible replacements are listed in build/linux/unbundle/replace_gn_files.py
# Keys are the names in the above script; values are the dependencies in Arch
readonly -A _system_libs=(
  #[ffmpeg]=ffmpeg            # https://crbug.com/731766
  [flac]=flac
  #[freetype]=freetype2       # Using 'use_system_freetype=true' until M65
  #[harfbuzz-ng]=harfbuzz     # Using 'use_system_harfbuzz=true' until M65
  #[icu]=icu                  # https://crbug.com/772655 + need M64 for ICU 60
  [libdrm]=
  [libjpeg]=libjpeg
  #[libpng]=libpng            # https://crbug.com/752403#c10
  #[libvpx]=libvpx            # https://bugs.gentoo.org/611394
  [libwebp]=libwebp
  [libxml]=libxml2
  [libxslt]=libxslt
  [opus]=opus
  [re2]=re2
  [snappy]=snappy
  [yasm]=
  [zlib]=minizip
)
readonly _unwanted_bundled_libs=(
  ${!_system_libs[@]}
  ${_system_libs[libjpeg]+libjpeg_turbo}
  freetype
  harfbuzz-ng
)
depends+=(${_system_libs[@]} freetype2 harfbuzz)

# Google API keys (see https://www.chromium.org/developers/how-tos/api-keys)
# Note: These are for Arch Linux use ONLY. For your own distribution, please
# get your own set of keys.
_google_api_key=AIzaSyDwr302FpOSkGRpLlUpPThNTDPbXcIn_FM
_google_default_client_id=413772536636.apps.googleusercontent.com
_google_default_client_secret=0ZChLK6AxeA3Isu96MkwqDR4

prepare() {
  cd "$srcdir/$_pkgname-$pkgver"

  # https://crbug.com/710701
  local _chrome_build_hash=$(base64 -d ../chromium-$pkgver.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

  # Enable support for the Widevine CDM plugin
  # libwidevinecdm.so is not included, but can be copied over from Chrome
  # (Version string doesn't seem to matter so let's go with "Pinkie Pie")
  sed "s/@WIDEVINE_VERSION@/Pinkie Pie/" ../chromium-widevine.patch |
    patch -Np1

  # https://chromium-review.googlesource.com/c/chromium/src/+/712575
  patch -Np1 -i ../chromium-exclude_unwind_tables.patch

  # https://crbug.com/789163
  patch -Np1 -i ../chromium-omnibox-unescape-fragment.patch

  # https://crbug.com/798864
  patch -Np1 -i ../chromium-disable-SharedArrayBuffer-by-default.patch

  # https://crbug.com/skia/6663#c10
  patch -Np4 -i ../chromium-skia-harmony.patch

  # Fixes from Gentoo
  patch -Np1 -i ../chromium-clang-r1.patch
  patch -Np1 -i ../chromium-webrtc-r0.patch

  # Remove compiler flags not supported by our system clang
  sed -i \
    -e '/"-Wno-enum-compare-switch"/d' \
    -e '/"-Wno-null-pointer-arithmetic"/d' \
    -e '/"-Wno-tautological-unsigned-zero-compare"/d' \
    -e '/"-Wno-tautological-unsigned-enum-zero-compare"/d' \
    build/config/compiler/BUILD.gn

  # fix NavButtonLayoutManager
  patch -Np1 -i ../fix-nav-button-layout.patch

  # Use Python 2
  find . -name '*.py' -exec sed -i -r 's|/usr/bin/python$|&2|g' {} +

  # There are still a lot of relative calls which need a workaround
  mkdir "$srcdir/python2-path"
  ln -s /usr/bin/python2 "$srcdir/python2-path/python"

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

  # Remove bundled libraries for which we will use the system copies; this
  # *should* do what the remove_bundled_libraries.py script does, with the
  # added benefit of not having to list all the remaining libraries
  local _lib
  for _lib in ${_unwanted_bundled_libs[@]}; do
    find -type f -path "*third_party/$_lib/*" \
      \! -path "*third_party/$_lib/chromium/*" \
      \! -path "*third_party/$_lib/google/*" \
      \! -path './base/third_party/icu/*' \
      \! -path './third_party/freetype/src/src/psnames/pstables.h' \
      \! -path './third_party/yasm/run_yasm.py' \
      \! -regex '.*\.\(gn\|gni\|isolate\)' \
      -delete
  done

  python2 build/linux/unbundle/replace_gn_files.py \
    --system-libraries "${!_system_libs[@]}"
}

build() {
  make -C chromium-launcher-$_launcher_ver GTK=2

  cd "$srcdir/$_pkgname-$pkgver"

  if check_buildoption ccache y; then
    # Avoid falling back to preprocessor mode when sources contain time macros
    export CCACHE_SLOPPINESS=time_macros
  fi

  export PATH="$srcdir/python2-path:$PATH"
  export TMPDIR="$srcdir/temp"
  mkdir -p "$TMPDIR"

  export CC=clang
  export CXX=clang++
  export AR=ar
  export NM=nm

  local _flags=(
    'custom_toolchain="//build/toolchain/linux/unbundle:default"'
    'host_toolchain="//build/toolchain/linux/unbundle:default"'
    'is_clang=true'
    'clang_use_chrome_plugins=false'
    'is_debug=false'
    'fatal_linker_warnings=false'
    'treat_warnings_as_errors=false'
    'fieldtrial_testing_like_official_build=true'
    'remove_webcore_debug_symbols=true'
    'ffmpeg_branding="Chrome"'
    'proprietary_codecs=true'
    'link_pulseaudio=true'
    'use_system_freetype=true'
    'use_system_harfbuzz=true'
    'use_gtk3=false'
    'use_gconf=false'
    'use_gnome_keyring=false'
    'use_gold=false'
    'use_sysroot=false'
    'linux_use_bundled_binutils=false'
    'use_custom_libcxx=false'
    'enable_hangout_services_extension=true'
    'enable_widevine=true'
    'enable_nacl=false'
    'enable_swiftshader=false'
    "google_api_key=\"${_google_api_key}\""
    "google_default_client_id=\"${_google_default_client_id}\""
    "google_default_client_secret=\"${_google_default_client_secret}\""
  )

  if check_option strip y; then
    _flags+=('exclude_unwind_tables=true')
  fi

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

  ninja -C out/Release chrome chrome_sandbox chromedriver widevinecdmadapter
}

package() {
  cd chromium-launcher-$_launcher_ver
  make PREFIX=/usr DESTDIR="$pkgdir" install
  install -Dm644 LICENSE \
    "$pkgdir/usr/share/licenses/chromium/LICENSE.launcher"

  cd "$srcdir/$_pkgname-$pkgver"

  install -D out/Release/chrome "$pkgdir/usr/lib/chromium/chromium"
  install -Dm4755 out/Release/chrome_sandbox "$pkgdir/usr/lib/chromium/chrome-sandbox"
  ln -s /usr/lib/chromium/chromedriver "$pkgdir/usr/bin/chromedriver"

  install -Dm644 chrome/installer/linux/common/desktop.template \
    "$pkgdir/usr/share/applications/chromium.desktop"
  install -Dm644 chrome/app/resources/manpage.1.in \
    "$pkgdir/usr/share/man/man1/chromium.1"
  sed -i \
    -e "s/@@MENUNAME@@/Chromium/g" \
    -e "s/@@PACKAGE@@/chromium/g" \
    -e "s/@@USR_BIN_SYMLINK_NAME@@/chromium/g" \
    "$pkgdir/usr/share/applications/chromium.desktop" \
    "$pkgdir/usr/share/man/man1/chromium.1"

  cp \
    out/Release/{chrome_{100,200}_percent,resources}.pak \
    out/Release/{*.bin,chromedriver,libwidevinecdmadapter.so} \
    "$pkgdir/usr/lib/chromium/"
  install -Dm644 -t "$pkgdir/usr/lib/chromium/locales" out/Release/locales/*.pak

  if [[ -z ${_system_libs[icu]+set} ]]; then
    cp out/Release/icudtl.dat "$pkgdir/usr/lib/chromium/"
  fi

  for size in 22 24 48 64 128 256; do
    install -Dm644 "chrome/app/theme/chromium/product_logo_$size.png" \
      "$pkgdir/usr/share/icons/hicolor/${size}x${size}/apps/chromium.png"
  done

  for size in 16 32; do
    install -Dm644 "chrome/app/theme/default_100_percent/chromium/product_logo_$size.png" \
      "$pkgdir/usr/share/icons/hicolor/${size}x${size}/apps/chromium.png"
  done

  install -Dm644 LICENSE "$pkgdir/usr/share/licenses/chromium/LICENSE"
}

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