#!/bin/bash

# Slackware build script for QGIS

# Copyright 2011 David Spencer, Baildon, West Yorkshire, U.K.
# Copyright 2013-2021 Benjamin Trigona-Harany
# Copyright 2023-2024 Giancarlo Dessi, Cagliari, IT
# 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.

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

PRGNAM=qgis
VERSION=${VERSION:-3.38.2}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

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

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.bz2
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 {} \;

if pkg-config --exists OpenCL; then
  OCL="-DUSE_OPENCL=OFF " ; [ "${OPENCL:-yes}" = "yes" ] && OCL="-DUSE_OPENCL=ON "
else
  OCL="-DUSE_OPENCL=OFF "
fi

if pkg-config --exists pdal; then
  WITHPDAL="-DWITH_PDAL=OFF "; [ "${PDAL:-yes}" = "yes" ] && WITHPDAL="-DWITH_PDAL=ON "
else
  WITHPDAL="-DWITH_PDAL=OFF "
fi

if pkg-config --exists draco; then
  WITHDRACO="-DWITH_DRACO=OFF "; [ "${DRACO:-yes}" = "yes" ] && WITHDRACO="-DWITH_DRACO=ON "
else
  WITHDRACO="-DWITH_DRACO=OFF "
fi

if pkg-config --exists grass; then
  WITHGRASS="-DGRASS_PREFIX=$(pkg-config --variable=prefix grass) "
else
  WITHGRASS=""
fi

sed -i '43 i IF (NOT PROJ_INCLUDE_DIR)\nFIND_PATH(PROJ_INCLUDE_DIR proj.h\n"$ENV{INCLUDE}"\n"$ENV{LIB_DIR}/include"\n)\nENDIF (NOT PROJ_INCLUDE_DIR)\n' cmake/FindProj.cmake

mkdir -p build
cd build
  cmake .. \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS -pthread" \
    -DCMAKE_BUILD_TYPE="Release" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DQGIS_LIB_SUBDIR=lib${LIBDIRSUFFIX} \
    -DQGIS_LIBEXEC_SUBDIR=lib${LIBDIRSUFFIX}/qgis \
    -DQGIS_PLUGIN_SUBDIR=lib${LIBDIRSUFFIX}/qgis \
    -DWITH_QWTPOLAR=TRUE \
    -DWITH_CUSTOM_WIDGETS=FALSE \
    -DBINDINGS_GLOBAL_INSTALL=TRUE \
    -DQWT_INCLUDE_DIR=/usr/include/qwt \
    -DQSCINTILLA_INCLUDE_DIR=/usr/include/qt5 \
    -DENABLE_TESTS=FALSE \
    -DWITH_3D=TRUE \
    -Wno-dev \
    $OCL \
    $WITHPDAL \
    $WITHDRACO \
    $WITHGRASS

  make
  make install DESTDIR=$PKG
cd -

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

mkdir -p $PKG/usr/share/mime/packages
cp debian/qgis.xml $PKG/usr/share/mime/packages

mkdir -p $PKG/usr/doc
mv $PKG/usr/share/$PRGNAM/doc $PKG/usr/doc/$PRGNAM-$VERSION
rm -f $PKG/usr/doc/$PRGNAM-$VERSION/INSTALL.md
cp -a \
  COPYING ChangeLog Exception_to_GPL_for_Qt.txt NEWS.md \
  $PKG/usr/doc/$PRGNAM-$VERSION
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