#!/bin/bash

# Slackware build script for assaultcube

# Copyright 2011-2014 Larry Hajali <larryhaja[at]gmail[dot]com>
# 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=assaultcube
SRCNAM=AssaultCube
VERSION=${VERSION:-1.2.0.2}
BUILD=${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 the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
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 [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf ${SRCNAM}_v${VERSION}
tar xvf $CWD/${SRCNAM}_v${VERSION}.tar.bz2
cd ${SRCNAM}_v${VERSION}
chown -R root:root .
find . -type f ! -name configure -exec chmod 644 '{}' \;
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 {} \;

patch -p1 < $CWD/assaultcube-gcc6.patch

# Use custom SLKCFLAGS, remove end-of-line encoding and remove precompiled binaries.
patch -p1 < $CWD/Makefile.patch
sed -i 's/\r//g' changelog.txt
sed -i "s|-O2|$SLKCFLAGS|" source/enet/configure
rm -f bin_unix/*
# Remove unneeded comments.
sed -i -r '/^#(CUBE|SYSTEM|MACHINE)/d' assaultcube.sh server.sh
# Fix an illegal string literal.
cat -v source/src/bot/bot_waypoint.cpp | sed "s|M-4|'|" > bot_waypoint.cpp
mv bot_waypoint.cpp source/src/bot/bot_waypoint.cpp

EXTRA_CXXFLAGS="$SLKCFLAGS" \
make -C source/src
EXTRA_CXXFLAGS="$SLKCFLAGS" \
make -C source/src install

mkdir -p $PKG/usr/games $PKG/usr/share/$PRGNAM
sed -i "/^CUBE_DIR/s|=.*|=\"/usr/share/${PRGNAM}\"|" $PRGNAM.sh server.sh
install -m 0755 $PRGNAM.sh $PKG/usr/games/$PRGNAM
install -m 0755 server.sh $PKG/usr/games/$PRGNAM-server
chmod 0755 bin_unix/*
cp -ar bin_unix bot config demos mods packages screenshots scripts \
  $PKG/usr/share/$PRGNAM

find $PKG | xargs 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/applications
install -m 0644 $CWD/$PRGNAM.desktop $PKG/usr/share/applications
for i in 16 24 32 48 64 96 128 256; do
  convert docs/images/icon.png -resize ${i}x${i}! $PRGNAM-$i.png
  install -D -m 0644 $PRGNAM-$i.png \
    $PKG/usr/share/icons/hicolor/${i}x${i}/apps/$PRGNAM.png
done

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a changelog.txt source/*.txt source/src/*.txt docs/*.txt README.html \
  $PKG/usr/doc/$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