#!/bin/bash

# Slackware build script for ggmud
# Copyright 2015 Eric Underhill <uhillem@gmail.com>
#
# Based on slackbuild by Michael Bueker <m.bueker@berlin.de>
#
# 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=ggmud
VERSION=${VERSION:-0.9.3}
BUILD=${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=${OUTPUT:-/tmp}
# For those of you that don't install anything to /opt, be sure to change
# the symlink creation line in doinst.sh to match to the location defined
# here if changed.
OPT=${OPT:-/opt}

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 $PRGNAM-$VERSION
tar -xzvf $CWD/$PRGNAM-$VERSION-src.tgz
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 {} \;

# Apply patch so everything will link correctly.
#cp $CWD/ggmud-link.diff $TMP/$PRGNAM-$VERSION
patch -p0 < $CWD/ggmud-link.diff

mkdir build && cd build
  cmake -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_BUILD_TYPE="release" \
    ..
  make
  # make install DESTDIR=$PKG
  # No make install exists for this application. Must do it manually.
  # Because ggmud expects it's conf files to be in the same directory as 
  # itself, it is best to install to /opt/ggmud to keep it's files together
  # and to keep from cluttering up /usr/bin with non binaries.
  mkdir -p $PKG/$OPT/$PRGNAM
  cp $TMP/$PRGNAM-$VERSION/build/$PRGNAM $PKG/$OPT/$PRGNAM
  cp $TMP/$PRGNAM-$VERSION/gg_help.txt $PKG/$OPT/$PRGNAM
  cp $TMP/$PRGNAM-$VERSION/leu/* $PKG/$OPT/$PRGNAM
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

(
 mkdir -p $PKG/usr/bin
 cd $PKG/usr/bin
 ln -s /opt/ggmud/ggmud .
)

mkdir -p $PKG/usr/share/{applications,pixmaps}
cp $CWD/$PRGNAM.png $PKG/usr/share/pixmaps/
cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop
cp $TMP/$PRGNAM-$VERSION/pixmaps/*  $PKG/usr/share/pixmaps/

mkdir -p $PKG/usr/doc/$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}