#!/bin/bash

# Slackware build script for meshlab

# Copyright 2013 David Spencer, Baildon, West Yorkshire, U.K.
# 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.

PRGNAM=meshlab
VERSION=${VERSION:-2016.12}
VCGLIBVER=${VCGLIBVER:-1.0.1}
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 meshlab
tar xvf $CWD/meshlab-$VERSION.tar.gz --transform="s#^meshlab-$VERSION/#meshlab/#"

rm -rf vcglib
tar xvf $CWD/vcglib-$VCGLIBVER.tar.gz --transform="s#^vcglib-$VCGLIBVER/#vcglib/#"

chown -R root:root meshlab vcglib
find -L meshlab vcglib \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -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 {} \;

cd meshlab

# patches from or via Arch
patch -p1 < $CWD/patches/mpir.patch      # use external library, see also below
patch -p1 < $CWD/patches/bzip2.patch     # use external library, see also below
patch -p1 < $CWD/patches/muparser.patch  # use external library, see also below
patch -p1 < $CWD/patches/levmar.patch    # use external library, see also below
patch -p1 < $CWD/patches/lapack.patch    # enable lapack
# fix derpy filename
mv src/plugins_experimental/io_TXT/io_txt.pro src/plugins_experimental/io_TXT/io_TXT.pro
# fix from git: https://github.com/cnr-isti-vclab/meshlab/commit/1e2a54c
patch -p1 < $CWD/patches/1e2a54cee2fcb2f0fc15fd83c1014e1813eb75df.patch
# fix from git: https://github.com/cnr-isti-vclab/meshlab/commit/612388c
patch -p1 < $CWD/patches/612388c42d00ab8eba1d9626a7da33a18c724d76.patch

# Build the supplied dependencies (they will be statically linked into meshlab)
cd src/external

  # don't use meshlab's ancient mpir
  rm -rf inc/ lib/  # <-- mpir in these dirs
  # and don't use meshlab's ancient bzip2, muParser, levmar
  sed -i \
    -e 's/bzip2.*pro//' -e '/muparser/d' -e '/levmar/d' \
    external.pro

  qmake-qt5 -recursive external.pro \
    CFLAGS="$SLKCFLAGS" \
    CXXFLAGS="$SLKCFLAGS -std=c++11"
  make

cd ..

# Build meshlab itself
qmake-qt5 -recursive meshlab_mini.pro \
  CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS -std=c++11"
make

mkdir -p $PKG/opt
cp -a distrib/ $PKG/opt/meshlab

mkdir -p $PKG/usr/bin
ln -s \
  /opt/meshlab/{meshlab,meshlabserver} \
  $PKG/usr/bin

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/share/pixmaps
cp \
  $CWD/meshlab_{32x32,48x48}.xpm \
  $PKG/usr/share/pixmaps

mkdir -p $PKG/usr/share/applications
cp \
  $CWD/meshlab.desktop \
  $PKG/usr/share/applications

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  $TMP/$PRGNAM/LICENSE.txt $TMP/$PRGNAM/README.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:-tgz}