#!/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.

# 20220222 bkw: Modified by SlackBuilds.org:
# - use the correct filename in the github URL.
# - make .desktop file validate.
# - fix doinst.sh.

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

PRGNAM=meshlab
SRCNAM=Meshlab
VCGLIB=vcglib
VERSION=${VERSION:-2021.10}
BUILD=${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"
else
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP

FILENAME=$PRGNAM-$SRCNAM-$VERSION

rm -rf $FILENAME
tar xvf $CWD/$FILENAME.tar.gz
cd $FILENAME/src
tar xvf $CWD/$VCGLIB-$VERSION.tar.gz --transform="s#$VCGLIB-$VERSION/#$VCGLIB/#"
cd ..
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 {} \+

mkdir -p build
cmake \
  -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
  -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
  -DALLOW_SYSTEM_QHULL=OFF \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -G Ninja \
  -B ./build \
  -S ./src
# shellcheck disable=SC2046 # allow MAKEFLAGS to split when passing multiple flags.
DESTDIR=$PKG "${NINJA:=ninja}" $(grep -oP -- '-+[A-z]+ ?[0-9]*'<<<"${MAKEFLAGS:--j1}") -C "./build" install

# fix plugin folder
if [ $LIBDIRSUFFIX ] ; then
  mkdir -p $PKG/usr/lib/$PRGNAM
  cd $PKG/usr/lib/$PRGNAM
  ln -s ../../lib$LIBDIRSUFFIX/$PRGNAM/plugins plugins
  cd -
fi

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

# Install and compress man pages
mkdir -p $PKG/usr/man/man1
cp docs/man/$PRGNAM.1 $PKG/usr/man/man1/
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
  ) 
fi

# fix version in desktop entry
#sed -i "s#Version=.*#Version=$VERSION#" $PKG/usr/share/applications/$PRGNAM.desktop
# 20220227 bkw: wrong. Version in a .desktop file is the version of the
# desktop file specification (usually 1.0), not the version of the application.

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  LICENSE.txt 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
