#!/bin/sh

# SlackBuild script for ITK

# Copyright 2018 Benjamin Trigona-Harany <slackbuilds@jaxartes.net>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "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 COPYRIGHT
# OWNER OR CONTRIBUTORS 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=ITK
SRCNAM=InsightToolkit
VERSION=${VERSION:-4.13.0}
BUILD=${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}

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"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

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

sed -i "s/lib\b/lib${LIBDIRSUFFIX}/" CMakeLists.txt
sed -i "s|/opj_config.h|& \$\{CMAKE_CURRENT_BINARY_DIR\}/openjpeg_mangle.h|" \
    Modules/ThirdParty/GDCM/src/gdcm/Utilities/gdcmopenjpeg/src/lib/openjp2/CMakeLists.txt

# allow compilation under GCC 8
patch -p1 Modules/ThirdParty/VNL/src/vxl/vcl/vcl_compiler.h < $CWD/gcc8.patch

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DITK_FORBID_DOWNLOADS:BOOL=ON \
    -DITK_WRAP_PYTHON:BOOL=OFF \
    -DBUILD_SHARED_LIBS:BOOL=ON \
    -DBUILD_EXAMPLES:BOOL=OFF \
    -DITK_USE_SYSTEM_LIBRARIES:BOOL=ON \
    -DITK_USE_SYSTEM_DCMTK:BOOL=ON \
    -DITK_USE_SYSTEM_DOUBLECONVERSION:BOOL=ON \
    -DITK_USE_SYSTEM_EXPAT:BOOL=ON \
    -DITK_USE_SYSTEM_FFTW:BOOL=ON \
    -DITK_USE_SYSTEM_HDF5:BOOL=ON \
    -DITK_USE_SYSTEM_JPEG:BOOL=ON \
    -DITK_USE_SYSTEM_PNG:BOOL=ON \
    -DITK_USE_SYSTEM_TIFF:BOOL=ON \
    -DITK_USE_SYSTEM_ZLIB:BOOL=ON \
    -DCMAKE_BUILD_TYPE=Release ..
  make install DESTDIR=$PKG
cd ..

# remove pkg-config file for openjpeg since this overwrites system package for something that should be internal to ITK
rm -rf $PKG/usr/lib64/pkgconfig

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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/$PRGNAM-$(echo $VERSION | cut -d "." -f 1,2)/* $PKG/usr/doc/$PRGNAM-$VERSION
rm -r $PKG/usr/share/doc
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

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