#!/bin/sh

# Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015  Patrick J. Volkerding, Sebeka, MN, USA
# Copyright 2015  Heinz Wiesinger, Amsterdam, The Netherlands
# 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.
#
# Derived from the main qt SlackBuild

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=qtwebkit
VERSION=$(ls qtwebkit-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)
BUILD=${BUILD:-1}

NUMJOBS=${NUMJOBS:--j7}

# Automatically determine the architecture we're building on:
MARCH=$( uname -m )
if [ -z "$ARCH" ]; then
  case "$MARCH" in
    i?86)    export ARCH=i586 ;;
    armv7hl) export ARCH=$MARCH ;;
    arm*)    export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *)       export ARCH=$MARCH ;;
  esac
fi

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686 -std=gnu++98 -fpermissive -fno-delete-null-pointer-checks"
  LIBDIRSUFFIX=""
  WEBKITFLAGS="--no-force-sse2"
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686 -std=gnu++98 -fpermissive -fno-delete-null-pointer-checks"
  LIBDIRSUFFIX=""
  WEBKITFLAGS="--no-force-sse2"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2 -std=gnu++98 -fpermissive -fno-delete-null-pointer-checks"
  LIBDIRSUFFIX=""
  WEBKITFLAGS="--no-force-sse2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC -std=gnu++98 -fpermissive -fno-delete-null-pointer-checks"
  LIBDIRSUFFIX="64"
  WEBKITFLAGS=""
elif [ "$ARCH" = "armv7hl" ]; then
  # To prevent "qatomic_armv6.h error: output number 2 not directly addressable"
  # More permanent solution is to patch gcc:
  # http://bazaar.launchpad.net/~linaro-toolchain-dev/gcc-linaro/4.6/revision/106731
  SLKCFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16 -fno-strict-volatile-bitfields -std=gnu++98 -fpermissive -fno-delete-null-pointer-checks"
  LIBDIRSUFFIX=""
  WEBKITFLAGS="--no-force-sse2"
else
  SLKCFLAGS="-O2 -std=gnu++98 -fpermissive -fno-delete-null-pointer-checks"
  LIBDIRSUFFIX=""
  WEBKITFLAGS="--no-force-sse2"
fi

case "$ARCH" in
    arm*) TARGET=$ARCH-slackware-linux-gnueabi ;;
    *)    TARGET=$ARCH-slackware-linux ;;
esac

TMP=${TMP:-/tmp}
PKG=$TMP/package-${PKGNAM}

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf qtwebkit-$VERSION
tar xvf $CWD/qtwebkit-$VERSION.tar.xz
cd qtwebkit-$VERSION || exit 1

# Patch to fix compiling with gcc5:
zcat $CWD/qtwebkit.putByIndexBeyondVectorLengthWithArrayStorage.diff.gz | patch -p1 --verbose || exit 1

chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

QTDIR="/usr/lib$LIBDIRSUFFIX/qt" \
Tools/Scripts/build-webkit \
  --qt \
  --prefix=/usr/lib${LIBDIRSUFFIX}/qt \
  --release \
  --no-webkit2 \
  --makeargs="$NUMJOBS" \
  --qmakearg="CONFIG+=production_build QMAKE_CFLAGS=\"$SLKCFLAGS\" QMAKE_CXXFLAGS=\"$SLKCFLAGS\"" \
  $WEBKITFLAGS || exit 1

# To add support for WebP images add this to --qmakearg
# DEFINES+=HAVE_LIBWEBP=1

make INSTALL_ROOT=$PKG -C WebKitBuild/Release install || exit 1

# libjscore is used internally.  Prevent a false dependency on this in the .pc files:
sed -i "s,-ljscore,,g" $PKG/usr/lib${LIBDIRSUFFIX}/qt/lib/pkgconfig/*.pc
sed -i "s,-L../JavaScriptCore/release,,g" $PKG/usr/lib${LIBDIRSUFFIX}/qt/lib/pkgconfig/*.pc

# libwebcore is used internally.  Prevent a false dependency on this in the .pc files:
sed -i \
  -e "s#-L/usr/lib${LIBDIRSUFFIX}/qt/lib -L../../WebCore/release -L../../JavaScriptCore/release -L/usr/X11R6/lib$LIBDIRSUFFIX  -lwebcore##g" \
  -e "s#-L/usr/lib${LIBDIRSUFFIX}/qt/lib -L../../WebCore/release -L../../JavaScriptCore/release -L/usr/X11R6/lib  -lwebcore##g" \
  -e "s#-L$TMP/qtwebkit-$VERSION/WebKitBuild/Release/Source/WebKit/release##g" \
  -e "s#-L$TMP/qtwebkit-$VERSION/WebKitBuild/Release/Source/WebCore/release##g" \
  -e "s#-L$TMP/qtwebkit-$VERSION/WebKitBuild/Release/Source/ThirdParty/ANGLE/release##g" \
  -e "s#-L$TMP/qtwebkit-$VERSION/WebKitBuild/Release/Source/JavaScriptCore/release##g" \
  -e "s#-L$TMP/qtwebkit-$VERSION/WebKitBuild/Release/Source/WTF/release##g" \
  -e "s# -lwebcore##g" \
  $PKG/usr/lib${LIBDIRSUFFIX}/qt/lib/pkgconfig/QtWebKit.pc

# Link the shared libraries into /usr/lib:
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  for file in qt/lib/*.so* ; do
    ln -sf $file .
  done
)

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

mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig
( cd $PKG/usr/lib${LIBDIRSUFFIX}/qt/lib/pkgconfig
  for file in *.pc ; do
    ( cd $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig ; ln -sf /usr/lib${LIBDIRSUFFIX}/qt/lib/pkgconfig/$file . )
  done
)

# Add a documentation directory:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a ChangeLog $PKG/usr/doc/$PKGNAM-$VERSION

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r ChangeLog ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/$PKGNAM-$VERSION-$ARCH-$BUILD.txz