#!/bin/sh

# Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020  Patrick J. Volkerding, Sebeka, MN, USA
# 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.

# Merged some ideas from Alex Sarmardzic's script for qt4 at SlackBuilds.org
# ^^ Modified by Robby Workman <rworkman@slackware.com> for QT4 & KDE4
#
# Modifications 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019  Eric Hameleers, Eindhoven, NL
# Modifications for qt 5.2.0 2013 by Michael James, AU
# Modifications for qt 5.x by Eric Hameleers, Eindhoven, NL

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

PKGNAM=qt5
VERSION=$(ls qt-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)
BUILD=${BUILD:-4}
PKGSRC=$(echo $VERSION | cut -d - -f 1)
PKGVER=$(echo $VERSION | tr - _)

USE_CODECS=${USE_CODECS:-NO}
SYSTEM_FFMPEG=${SYSTEM_FFMPEG:-YES}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-${PKGVER}-${ARCH}-${BUILD}.txz"
  exit 0
fi

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  SLKLDFLAGS=""
  SLKLDFLAGS="-L/usr/lib64"
  LIBDIRSUFFIX="64"
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"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  SLKLDFLAGS=""
  LIBDIRSUFFIX=""
fi

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

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf qt-everywhere-src-$VERSION
echo "Extracting qt-everywhere-src-$VERSION.tar.xz"
tar xf $CWD/qt-everywhere-src-$VERSION.tar.xz || exit 1
cd qt-everywhere-src-$PKGSRC || 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 {} \+

# Use -reduce-relocations only on i?86 and x86_64 architextures.
# https://bugreports.qt-project.org/browse/QTBUG-36129
if echo $ARCH | grep -q '\(i.86\|x86_64\)' 2>/dev/null; then
  RELOCATIONS="-reduce-relocations"
else
  RELOCATIONS=""
fi

# Fix path to mysql header:
zcat $CWD/patches/qt5.mysql.h.diff.gz | patch -p1 --verbose || exit 1

# CMake generates wrong -isystem /usr/include compilations flags with Qt5::Gui
# and for it breaks KWin compilation with:
# /usr/include/c++/9.1.0/cstdlib:75:15: fatal error: stdlib.h: No such file or directory
# See also https://bugzilla.redhat.com/1704474
cd qtbase
  zcat $CWD/patches/qt5.qtbase_cmake_isystem_includes.patch.gz | patch -p1 --verbose || exit 1
cd - 1>/dev/null

# CVE-2020-0569 (fixed in 5.14.0):
cd qtbase
  zcat $CWD/patches/qt5.cve-2020-0569.patch.gz | patch -p1 --verbose || exit 1
cd - 1>/dev/null

# CVE-2020-0570 (fixed in 5.14.1):
cd qtbase
  zcat $CWD/patches/qt5.cve-2020-0570.patch.gz | patch -p1 --verbose || exit 1
cd - 1>/dev/null

# If PulseAudio is not found, use the _alsa $TAG and disable it in the build:
if ! pkg-config --exists libpulse 2>/dev/null ; then
  PULSEAUDIO_OPTION="-no-pulseaudio -no-webengine-pulseaudio"
  TAG="_alsa"
else
  unset PULSEAUDIO_OPTION
  unset TAG
fi

# Use our custom compiler and linker flags:
sed -e "s|^\(QMAKE_CFLAGS_RELEASE.*\)|\1 ${SLKCFLAGS}|" \
  -i qtbase/mkspecs/common/gcc-base.conf || exit 1
sed -e "s|^\(QMAKE_LFLAGS_RELEASE.*\)|\1 ${SLKLDFLAGS}|" \
  -i qtbase/mkspecs/common/g++-unix.conf || exit 1

if [ ! "$USE_CODECS" = "NO" ]; then
  CODEC_OPTION="-proprietary-codecs -webengine-proprietary-codecs"
else
  unset CODEC_OPTION
fi

if [ "$SYSTEM_FFMPEG" = "YES" ]; then
  FFMPEG_OPTION="-webengine-ffmpeg"
else
  unset FFMPEG_OPTION
fi

export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export OPENSOURCE_CXXFLAGS="$SLKCFLAGS"
export QTDIR="${TMP}/qt-everywhere-src-${PKGSRC}"
export LD_LIBRARY_PATH="${QTDIR}/qtbase/lib:${QTDIR}/qttools/lib:${LD_LIBRARY_PATH}"
export QT_PLUGIN_PATH="${QTDIR}/qtbase/plugins"
./configure -v \
  -confirm-license \
  -opensource \
  -prefix /usr \
  -libdir /usr/lib${LIBDIRSUFFIX} \
  -bindir /usr/lib${LIBDIRSUFFIX}/qt5/bin \
  -sysconfdir /etc/xdg \
  -headerdir /usr/include/qt5 \
  -datadir /usr/share/qt5 \
  -archdatadir /usr/lib${LIBDIRSUFFIX}/qt5 \
  -docdir /usr/doc/qt5-$PKGVER \
  -examplesdir /usr/doc/qt5-$PKGVER/examples \
  -system-libpng \
  -system-libjpeg \
  -system-sqlite \
  -system-zlib \
  -plugin-sql-mysql \
  -plugin-sql-sqlite \
  -accessibility \
  -alsa \
  -dbus \
  -glib \
  -icu \
  -opengl \
  -openssl-linked \
  -optimized-qmake \
  -qpa xcb \
  -qt-harfbuzz \
  -verbose \
  -xcb \
  -nomake examples \
  -nomake tests \
  -no-mimetype-database \
  -no-separate-debug-info \
  -no-strip \
  -no-use-gold-linker \
  ${CODEC_OPTION} \
  ${FFMPEG_OPTION} \
  ${PULSEAUDIO_OPTION} \
  ${RELOCATIONS} \
  -no-pch
  # No-precompiled-headers is ccache-friendly.
  
# Sometimes a failure happens when parallelizing make.  Try again if make fails,
# but make a failure the second time around (single threaded) a fatal error:
make $NUMJOBS || make || exit 1
make install INSTALL_ROOT=$PKG || exit 1

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

# Remove rpaths:
for file in $(find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF | cut -f 1 -d : 2> /dev/null) ; do
  if [ ! "$(patchelf --print-rpath $file 2> /dev/null)" = "" ]; then
    patchelf --remove-rpath $file
  fi
done

# Don't ship .la files:
rm -f $PKG/usr/lib${LIBDIRSUFFIX}/*.la

# Fix internal linking for Qt5WebEngineCore.pc ,
# thanks to Larry Hajali's SBo script:
sed -i \
  -e 's|-Wl,--start-group.* -Wl,--end-group||' \
  -e "s|-L${PWD}/qtwebengine/src/core/api/Release||" \
  $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig/Qt5WebEngineCore.pc

# Fix the path in prl files:
find "$PKG/usr/lib${LIBDIRSUFFIX}" -type f -name '*.prl' \
  -exec sed -i -e '/^QMAKE_PRL_BUILD_DIR/d;s/\(QMAKE_PRL_LIBS =\).*/\1/' {} \;

# Fix the qmake path in pri file:
sed -i "s,${QTDIR}/qtbase,/usr/lib${LIBDIRSUFFIX}/qt5," \
  $PKG/usr/lib${LIBDIRSUFFIX}/qt5/mkspecs/modules/qt_lib_bootstrap_private.pri

# Install symlinks to the Qt5 binaries in the $PATH:
mkdir -p $PKG/usr/bin
for FILE in $PKG/usr/lib${LIBDIRSUFFIX}/qt5/bin/* ; do
  ln -s ../lib${LIBDIRSUFFIX}/qt5/bin/$(basename $FILE) $PKG/usr/bin/$(basename $FILE)-qt5
done

# Set the QT5DIR variable in the environment:
mkdir -p $PKG/etc/profile.d
sed -e "s,@LIBDIRSUFFIX@,${LIBDIRSUFFIX},g" $CWD/profile.d/$PKGNAM.sh \
  > $PKG/etc/profile.d/$PKGNAM.sh
sed -e "s,@LIBDIRSUFFIX@,${LIBDIRSUFFIX},g" $CWD/profile.d/$PKGNAM.csh \
  > $PKG/etc/profile.d/$PKGNAM.csh
chmod 0755 $PKG/etc/profile.d/*

# Add menu entries for all those hidden but great Qt applications:
# Qt5 logo:
mkdir -p $PKG/usr/share/icons/hicolor/48x48/apps
convert qtdoc/doc/src/images/qt-logo.png  -resize 48x48 $PKG/usr/share/icons/hicolor/48x48/apps/qt5-logo.png
# Assistant icons
install -p -m644 -D qttools/src/assistant/assistant/images/assistant.png $PKG/usr/share/icons/hicolor/32x32/apps/qt5-assistant.png
install -p -m644 -D qttools/src/assistant/assistant/images/assistant-128.png $PKG/usr/share/icons/hicolor/128x128/apps/qt5-assistant.png
# Designer icon
install -p -m644 -D qttools/src/designer/src/designer/images/designer.png $PKG/usr/share/icons/hicolor/128x128/apps/qt5-designer.png
# QDbusViewer icons
install -p -m644 qttools/src/qdbus/qdbusviewer/images/qdbusviewer.png $PKG/usr/share/icons/hicolor/32x32/apps/qt5-qdbusviewer.png
install -p -m644 qttools/src/qdbus/qdbusviewer/images/qdbusviewer-128.png $PKG/usr/share/icons/hicolor/128x128/apps/qt5-qdbusviewer.png
# Linguist icons
for icon in qttools/src/linguist/linguist/images/icons/linguist-*-32.png ; do
  size=$(echo $(basename ${icon}) | cut -d- -f2)
  install -p -m644 -D ${icon} $PKG/usr/share/icons/hicolor/${size}x${size}/apps/qt5-linguist.png
done

# And the .desktop files too:
mkdir -p $PKG/usr/share/applications
cat <<EOF > $PKG/usr/share/applications/qt5-designer.desktop
[Desktop Entry]
Name=Qt5 Designer
GenericName=Interface Designer
Comment=Design GUIs for Qt5 applications
Exec=designer-qt5
Icon=qt5-designer
MimeType=application/x-designer;
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;
EOF
cat <<EOF > $PKG/usr/share/applications/qt5-assistant.desktop
[Desktop Entry]
Name=Qt5 Assistant 
Comment=Shows Qt5 documentation and examples
Exec=assistant-qt5
Icon=qt5-assistant
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;Documentation;
EOF
cat <<EOF > $PKG/usr/share/applications/qt5-linguist.desktop
[Desktop Entry]
Name=Qt5 Linguist 
Comment=Add translations to Qt5 applications
Exec=linguist-qt5
Icon=qt5-linguist
MimeType=text/vnd.trolltech.linguist;application/x-linguist;
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;
EOF
cat <<EOF > $PKG/usr/share/applications/qt5-qdbusviewer.desktop
[Desktop Entry]
Name=Qt5 QDbusViewer 
GenericName=Qt5 D-Bus Debugger
Comment=Debug D-Bus applications
Exec=qdbusviewer-qt5
Icon=qt5-qdbusviewer
Terminal=false
Type=Application
Categories=Qt;Development;Debugger;
EOF

# Add a documentation directory:
mkdir -p $PKG/usr/doc/$PKGNAM-$PKGVER
cp -a \
  README qtbase/{header*,LGPL_EXCEPTION.txt,LICENSE*} \
  $PKG/usr/doc/$PKGNAM-$PKGVER
if [ -d $PKG/usr/lib${LIBDIRSUFFIX}/qt5/doc/html ]; then
  ( cd $PKG/usr/doc/$PKGNAM-$PKGVER
    ln -sf /usr/lib${LIBDIRSUFFIX}/qt5/doc/html .
  )
fi

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/$PKGNAM-$PKGVER-$ARCH-${BUILD}${TAG}.txz