#!/bin/sh

# Slackware build script for Chromium Web Browser
#
# Copyright 2010      Yucatan "Kenjiro" Costa, Alegrete, RS, Brasil
# Copyright 2013,2016 Francisco Ambrozio <sbo@franciscoambrozio.com>
#
# This work is based on AlienBOB's Chromium SlackBuild
# http://www.slackware.com/~alien/slackbuilds/chromium/
#
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

PRGNAM=chromium
VERSION=${VERSION:-53.0.2785.143}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

USE_CLANG=${USE_CLANG:-NO}

# Google API keys (see http://www.chromium.org/developers/how-tos/api-keys)
# Here we following the same way of Arch Linux and Gentoo.
# Note: These are for this build use ONLY. For your own distribution, please
# get your own set of keys. Feel free to contact me for more information.
GOOGLE_API_KEY=AIzaSyBhWJ-j5RXyt5911BMuVen-WuS10mvOnrY
GOOGLE_DEFAULT_CLIENT_ID=952820686433-mbp5sv9scfj78siq96jlvrem47qgvbi3.apps.googleusercontent.com
GOOGLE_DEFAULT_CLIENT_SECRET=XU4b-j0Ssy-XkTvSVmiFMvNY

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
  TARGETARCH="ia32"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
  TARGETARCH="ia32"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  SLKLDFLAGS="-L/usr/lib64"
  LIBDIRSUFFIX="64"
  TARGETARCH="x64"
else
  SLKCFLAGS="-O2"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
  TARGETARCH="ia32"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.xz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# Disable MADV_FREE (if set by glibc)
# https://bugzilla.redhat.com/show_bug.cgi?id=1361157
patch -p1 -i $CWD/chromium-52.0.2743.116-unset-madv_free.patch

if [ "$USE_CLANG" = "YES" ]; then
  CLANG_OPT="-Dclang=1 -Dclang_use_chrome_plugins=0"
  sed -e '/-Wno-absolute-value/d' -i build/common.gypi

  export CC="clang"
  export CXX="clang++"
  SLKCFLAGS="${SLKCFLAGS} -Wno-unknown-warning-option"
else
  CLANG_OPT="-Dclang=0"
  SLKCFLAGS="${SLKCFLAGS} -Wno-unused-local-typedefs"
fi
export -n LDFLAGS="$SLKLDFLAGS" CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS"

_conf=(
  $CLANG_OPT
  -Ddisable_glibc=1
  -Dffmpeg_branding=Chrome
  -Dffmpeg_component=shared_library
  -Dgoogle_api_key=$GOOGLE_API_KEY
  -Dgoogle_default_client_id=$GOOGLE_DEFAULT_CLIENT_ID
  -Dgoogle_default_client_secret=$GOOGLE_DEFAULT_CLIENT_SECRET
  -Dicu_use_data_file_flag=1
  -Dlinux_sandbox_path=/usr/lib${LIBDIRSUFFIX}/chromium/chrome_sandbox
  -Dlinux_strip_binary=1
  -Dlinux_use_bundled_binutils=0
  -Dlinux_use_bundled_gold=0
  -Dlinux_use_gold_binary=0
  -Dlinux_use_gold_flags=0
  -Dlogging_like_official_build=1
  -Dproprietary_codecs=1
  -Dremove_webcore_debug_symbols=1
  -Dusb_ids_path=/usr/share/hwdata/usb.ids
  -Duse_allocator=none
  -Duse_gconf=0
  -Duse_kerberos=0
  -Duse_sysroot=0
  -Duse_pulseaudio=1
  -Duse_system_bzip2=0
  -Duse_system_ffmpeg=0
  -Duse_system_harfbuzz=0
  -Duse_system_icu=0
  -Duse_system_libjpeg=0
  -Duse_system_libpng=0
  -Duse_system_libxml=0
  -Duse_system_libxslt=0
  -Duse_system_opus=0
  -Duse_system_snappy=0
  -Duse_system_zlib=0
  -Duse_system_flac=1
  -Duse_system_libevent=1
  -Duse_system_nspr=1
  -Duse_system_openssl=1
  -Duse_system_xdg_utils=1
  -Duse_system_yasm=1
  -Dwerror=
  -Drelease_extra_cflags="$CFLAGS"
  -Dtarget_arch=$TARGETARCH
  -Ddisable_nacl=1
  -Ddisable_sse2=1
)

# Steps needed to build
third_party/libaddressinput/chromium/tools/update-strings.py
touch chrome/test/data/webui/i18n_process_css_test.html
build/linux/unbundle/replace_gyp_files.py "${_conf[@]}"
build/gyp_chromium --depth=. "${_conf[@]}"
ninja -C out/Release chrome chrome_sandbox chromedriver

# "Install" process
install -D out/Release/chrome $PKG/usr/lib${LIBDIRSUFFIX}/chromium/chromium
install -D -m4755 -o root -g root out/Release/chrome_sandbox \
  $PKG/usr/lib${LIBDIRSUFFIX}/chromium/chrome-sandbox
install -D out/Release/chromedriver \
  $PKG/usr/lib${LIBDIRSUFFIX}/chromium/chromedriver

cp out/Release/*.pak $PKG/usr/lib${LIBDIRSUFFIX}/chromium
cp -a out/Release/locales $PKG/usr/lib${LIBDIRSUFFIX}/chromium
cp -a out/Release/pseudo_locales $PKG/usr/lib${LIBDIRSUFFIX}/chromium
ln -s locales $PKG/usr/lib${LIBDIRSUFFIX}/chromium/remoting_locales
cp -a out/Release/resources $PKG/usr/lib${LIBDIRSUFFIX}/chromium

mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/chromium/lib
cp out/Release/lib/libffmpeg.so $PKG/usr/lib${LIBDIRSUFFIX}/chromium/lib

cp out/Release/natives_blob.bin $PKG/usr/lib${LIBDIRSUFFIX}/chromium
cp out/Release/snapshot_blob.bin $PKG/usr/lib${LIBDIRSUFFIX}/chromium
cp -a out/Release/icudtl.dat $PKG/usr/lib${LIBDIRSUFFIX}/chromium

mkdir -p $PKG/usr/man/man1
install -m 0644 -D out/Release/chrome.1 $PKG/usr/man/man1/chromium.1

mkdir -p $PKG/usr/bin
cat $CWD/chromium.sh | sed s/@LIBDIRSUFFIX@/$LIBDIRSUFFIX/ > $PKG/usr/bin/chromium
chmod 0755 $PKG/usr/bin/chromium
ln -s ../lib${LIBDIRSUFFIX}/chromium/chromedriver $PKG/usr/bin/chromedriver

for size in 16 32; do
  install -D -m0644 \
    chrome/app/theme/default_100_percent/chromium/product_logo_$size.png \
    $PKG/usr/share/icons/hicolor/${size}x${size}/apps/${PRGNAM}.png
done
for size in 22 24 48 64 128 256; do
  install -D -m0644 \
    chrome/app/theme/chromium/product_logo_$size.png \
    $PKG/usr/share/icons/hicolor/${size}x${size}/apps/${PRGNAM}.png
done

install -D -m 0644 $CWD/chromium.desktop $PKG/usr/share/applications/chromium.desktop
mkdir -p $PKG/etc/chromium
cat $CWD/chromium.default > $PKG/etc/chromium/00-default.conf.new

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS LICENSE $PKG/usr/doc/$PRGNAM-$VERSION/ || true

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}