#!/bin/sh

# Slackware build script for eduke32

# Written by B. Watson (yalhcru@gmail.com)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

PRGNAM=eduke32
VERSION=${VERSION:-20150510_5182}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
fi

set -e

SRCVER=${VERSION/_/-}

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf ${PRGNAM}_${SRCVER}
tar xvf $CWD/${PRGNAM}_src_${SRCVER}.tar.xz
cd ${PRGNAM}_${SRCVER}
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 {} \;

if [ "${VPX:-no}" != "yes" ]; then
  VPXFLAG="USE_LIBVPX=0"
fi

# On some systems, the game spits out tons of warnings:
# Error: glGetTexLevelParameteriv returned GL_FALSE!
# These don't seem to actually hurt anything (the game looks
# and plays fine), so let's get rid of them to clean up
# the log output.
sed -i '/"Error: glGetTexLevelParameteriv/d' build/src/texcache.c

# Mildly confusing: the Makefile uses ARCH for arch-specific cflags
make ARCH="$SLKCFLAGS" $VPXFLAG SDL_TARGET=1

# Build the utilities, if requested.
if [ "${BUILD_UTILS:-yes}" = "yes" ]; then
  make utils ARCH="$SLKCFLAGS" $VPXFLAG SDL_TARGET=1

  for i in kextract kgroup transpal wad2art wad2map; do
    install -s -D -m0755 $i $PKG/usr/games/$i
  done

  mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
  cp build/doc/* $PKG/usr/doc/$PRGNAM-$VERSION
fi

install -D -m0755 $PRGNAM $PKG/usr/libexec/$PRGNAM/$PRGNAM
install -D -m0755 mapster32 $PKG/usr/libexec/$PRGNAM/mapster32

mkdir -p $PKG/usr/man/man6
gzip -9c $CWD/$PRGNAM.6 > $PKG/usr/man/man6/$PRGNAM.6.gz

# Wrapper script to make things behave nicer
install -D -m0755 $CWD/$PRGNAM.wrapper  $PKG/usr/games/$PRGNAM
( cd $PKG/usr/games ; ln -s $PRGNAM mapster32 )

# Mapster help files
mkdir -p $PKG/usr/share/games/$PRGNAM
cd package/sdk
cp *.hlp *.HLP names.h tiles.cfg $PKG/usr/share/games/$PRGNAM
cp -r samples $PKG/usr/share/games/$PRGNAM/samples
cd -

mkdir -p $PKG/usr/share/applications
cp $CWD/mapster32.desktop $CWD/$PRGNAM.desktop $PKG/usr/share/applications

mkdir -p $PKG/usr/share/pixmaps
cp $CWD/$PRGNAM.png $PKG/usr/share/pixmaps

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp build/buildlic.txt source/gpl-2.0.txt $CWD/README_game_data.txt \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

( cd $PKG/usr/share/games/$PRGNAM
  ln -s ../../../doc/$PRGNAM-$VERSION/README_game_data.txt . )

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}