#!/bin/sh

# Heavily based on the Slackware 14.1 SlackBuild (v1)

# Written by Andrea Sciucca ( gohanz at infinito.it)
# Last build from Matteo Rossini ( zerouno at slacky it )

# Slackware build script for chromium
# Official Site: http://www.chromium.org/

#
# 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.
#
# Require:

set -e 


PKGNAME=chromium
#VERSION=${VERSION:-SNAPSHOT} # Set to SNAPSHOT to install the latest release.
VERSION=${VERSION:-34.0.1847.116} # or set an exact realese
#VERSION=${VERSION:-28} # or set your prefered major version
BUILD=${BUILD:-2}
TAG=${TAG:-sl}
ARCH=${ARCH:-x86_64}
CONTINUE=${CONTINUE:-0}
SOURCE="http://commondatastorage.googleapis.com/chromium-browser-official"
if [ "$VERSION" == "SNAPSHOT" ];then
  VERSION=.
fi
#VERSION=$(wget http://src.chromium.org/viewvc/chrome/releases/?view=log -O - -q|grep DEPS|awk '{print $7}'|grep -m1 ^$VERSION)
SOURCE=$SOURCE/chromium-$VERSION.tar.xz
TAR=      # empty = auto
DIR=      # empty = auto
DOCS="AUTHORS  Android.mk  DEPS  LICENSE  OWNERS  PRESUBMIT.py  WATCHLISTS"
SLKFILES="chromium.desktop chromium_gyp.patch"

# Automatically determine the architecture we're building on:
case "$ARCH" in
	  i?86) export ARCH=i486; SLKCFLAGS="-O2 -march=i486 -mtune=i686"; CHOST="i486-slackware-linux" ;;
	x86_64) SLKCFLAGS="-O2 -fPIC -fno-ipa-cp"; LIBDIRSUFFIX="64"; CHOST="x86_64-slackware-linux" ;;
	  arm*) export ARCH=arm; SLKCFLAGS="-O2 -march=armv5te"; CHOST="arm-slackware-linux-gnueabi" ;;
# Unless $ARCH is already set, use uname -m for all other archs:
		 *) export ARCH=$( uname -m ) ;;
esac

# Does not touch following if not needed
JOBS=${JOBS:--j2}
CWD=$(pwd)
TMP=${TMP:-/tmp/buildpkgs/$PKGNAME}
PKG=$TMP/package-$PKGNAME
OUTPUT=${OUTPUT:-$CWD}
TAR=${TAR:-$(basename $SOURCE)}
DIR=${DIR:-$(echo "$TAR"|sed -r 's/(\.tar|)(.gz|.bz2|.xz|)$//')}

if [ ! -e "$CWD/$TAR" -a "$CONTINUE" != "1" ];then
  wget "$SOURCE" -O "$CWD/$TAR"
fi

rm -rf $PKG
if [ "$CONTINUE" != "1" ];then
  ### Preparing Source
  rm -rf $TMP
  mkdir -p $TMP $PKG $OUTPUT
  cd $TMP
  echo "Extracting source..."
  tar xf $CWD/$TAR
  cd $DIR

  patch -p0 < $CWD/chromium_gyp.patch

  chown -R root:root .
  chmod -R u+w,go+r-w,a-s .
  CONFIGURE=1
fi

# Building Chromium package

cd $TMP/$DIR
if [ "$CONFIGURE" == "1" ];then
   build/gyp_chromium -f make build/all.gyp --depth=. \
    -Dgcc_version=47 \
    -Dno_strict_aliasing=1 \
    -Dwerror= \
    -Dlinux_strip_binary=1 \
    -Drelease_extra_cflags="$SLKCFLAGS ${CFLAGS}" \
    -Dffmpeg_branding=Chrome \
    -Dproprietary_codecs=1 \
    -Duse_system_libjpeg=1 \
    -Duse_system_libxslt=1 \
    -Duse_system_libxml=1 \
    -Duse_system_speex=0 \
    -Duse_system_flac=1 \
    -Duse_system_libwebp=0 \
    -Duse_system_bzip2=1 \
    -Duse_system_zlib=1 \
    -Duse_system_libpng=1 \
    -Duse_system_ffmpeg=0 \
    -Duse_system_yasm=1 \
    -Duse_system_libevent=0 \
    -Dremove_webcore_debug_symbols=1 \
    -Duse_system_ssl=0 \
    -Duse_gnome_keyring=0 \
    -Dlinux_link_gnome_keyring=0 \
    -Ddisable_nacl=1 \
    -Duse_kerberos=0 \
    -Duse_gconf=0 \
    -Dlinux_fpic=1 \
    -Dbuild_ffmpegsumo=1 \
    -Duse_openssl=0 \
    -Duse_pulseaudio=0 \
    $([ "${ARCH}" == 'i686' ] && echo '-Ddisable_sse2=1')
    
### Building Chrome executable
CXXFLAGS="-include /usr/include/expat.h -include unistd.h" \
make $JOBS chrome chrome_sandbox BUILDTYPE=Release
fi


# Installing Chrome executable, sandbox and driver
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/$PKGNAME
install -m 0755 -o root -g root out/Release/chrome $PKG/usr/lib${LIBDIRSUFFIX}/$PKGNAME/chromium
install -m 4755 -o root -g root -D out/Release/chrome_sandbox $PKG/usr/lib${LIBDIRSUFFIX}/$PKGNAME/chrome-sandbox
#install -m 0755 -o root -g root -D out/Release/chromedriver $PKG/usr/lib${LIBDIRSUFFIX}/$PKGNAME/chromiumdriver

#  out/Release/chrome.pak \

# Installing Chrome data, resources and libraries
mkdir -p  $PKG/usr/lib${LIBDIRSUFFIX}/$PKGNAME/themes
cp -r \
  out/Release/resources.pak \
  out/Release/content_resources.pak \
  out/Release/chrome_100_percent.pak \
  out/Release/libffmpegsumo.so \
  out/Release/locales \
  out/Release/resources \
  out/Release/icudtl.dat \
   $PKG/usr/lib${LIBDIRSUFFIX}/$PKGNAME

# Installing manpage
install -m 0644 -D out/Release/chrome.1 $PKG/usr/man/man1/$PKGNAME.1

# Installing desktop menu and icon files
install -m 0644 -D $CWD/$PKGNAME.desktop $PKG/usr/share/applications/chromium.desktop
for res in 22 24 48 64 128 256 ;do
  dir=${PKG}/usr/share/icons/hicolor/${res}x${res}/apps
  mkdir -p ${dir}
  cp chrome/app/theme/chromium/product_logo_${res}.png ${dir}/${PKGNAME}.png
done
res=32
dir=${PKG}/usr/share/icons/hicolor/${res}x${res}/apps
mkdir -p ${dir}
cp chrome/app/theme/chromium/product_logo_${res}.xpm ${dir}/${PKGNAME}.xpm

# Linking Chrome executable on default path 
mkdir -p $PKG/usr/bin
ln -s ../../usr/lib${LIBDIRSUFFIX}/chromium/chromium $PKG/usr/bin/chromium

# Documentation
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION
for DC in $DOCS;do
	[ -e $DC ] && cp -r $DC $PKG/usr/doc/$PKGNAME-$VERSION/ || true
done
 
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild
cd $CWD
for SB in $PKGNAME.SlackBuild slack-desc doinst.sh doinst.sh.gz EULA.TXT $SLKFILES;do
  [ -e $SB ]&&cp -r $SB $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/$SB
done

for i in man info
do
    if [ -d $PKG/usr/$i ]; then
   		cd $PKG/usr/$i
		find . -type f -exec gzip -9 {} \;
		for file in $( find . -type l ) ; do ln -s $( readlink $file ).gz $file.gz ; rm $file ; done
		[ "$i" == "info" ] && rm -f dir
    fi
done

# Strip binaries and shared objects, if present
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
)



mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
[ -e $CWD/doinst.sh ] && cat $CWD/doinst.sh > $PKG/install/doinst.sh
[ -e $CWD/doinst.sh.gz ] && zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh


# Find and print dependencies into slack-required file
cd $PKG
chown -R root:root $PKG
if [ -x /usr/bin/requiredbuilder ];then
  ADD=$(ls /var/log/packages/ | sed -ne 's/\(mozilla-nss\)-\([^-]\+-[^-]\+-[^-]\+\)/\1 >= \2,/p' \
  -e 's/\(seamonkey-solibs\)-\([^-]\+-[^-]\+-[^-]\+\)/\1 >= \2/p') \
  requiredbuilder -y -v -b -s  $CWD $PKG
fi
# Create txz package
## NOTE THE -p parameter
/sbin/makepkg -p -l y -c n $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}


# Cleanup if enabled
if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi