#!/bin/bash

# Slackware build script for koules

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

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

# This game used to be distributed on disk Y1 of Slackware 3.3.
# This script doesn't share any code with whatever build script
# existed back then (partly because I couldn't find a copy)

PRGNAM=koules
VERSION=${VERSION:-1.4}
BUILD=${BUILD:-2}
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}

# Use MIT shared memory?

# On some systems, MITSHM speeds things up. On others, it slows them
# down or (on 64-bit systems) causes the game to crash on startup.
# If you set MITSHM=yes and have problems, try running koules with
# the -M flag. If the problems go away, rebuild with MITSHM=no to avoid
# having to give the -M flag all the time...
# I'm defaulting this to no, because modern systems should be fast enough
# to play this simple game without it.

MITSHM=${MITSHM:-no}

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"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM$VERSION
tar xvf $CWD/$PRGNAM$VERSION-src.tar.gz
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 {} \;

# 20140502 bkw: modern Slackware has OSS modules disabled by default,
# so wrap the sound server in aoss.
[ "${ALSA:-yes}" = "yes" ] && patch -p1 < $CWD/patches/aoss.diff

# sound server in /usr/libexec, game data in /usr/share/koules
# also, enable sound and joystick support.
patch -p1 < $CWD/patches/slackware.diff

# Grrr. Need this to compile with MITSHM disabled.
patch -p1 < $CWD/patches/compile_fix.diff

# Modern gcc seems to hate the inline assembly. Anyway I bet gcc's code
# with -O2 is the same or faster...
patch -p1 < $CWD/patches/no_inline_asm.diff

# The author forgot to mention the -E option in the help and man page
patch -p1 < $CWD/patches/document_E_option.diff

# Some people might like the launcher...
patch -p1 < $CWD/patches/tcl_launcher_paths.diff

# I hate Imake even worse than autoconf...
if [ "$MITSHM" = "no" ]; then
	sed -i -e '/#define MITSHM/d' Iconfig
fi

# fake out xmkmf. on slack 14.2 that was upgraded from 14.1,
# /usr/lib64/X11/config/host.def is missing. It's empty anyway,
# so...
touch host.def xlib/host.def util/host.def
xmkmf -a

# Did I mention I hate Imake?
find . -name Makefile | \
		  xargs sed -i -e "s/-O2.*/$SLKCFLAGS/"
touch xkoules.man

# 20140502 bkw:
# parallel builds sometimes (usually) work, but not always. This is
# small enough that nobody should get too impatient even with -j1.
make -j1

# Don't trust 'make install', it doesn't fully support DESTDIR, and
# installs things with weird permissions. Again, Imake sucks.
# Also, we want to call the binary and manpage "koules", not "xkoules",
# so there'd be some manual stuff going on anyway.

mkdir -p $PKG/usr/games
strip --strip-unneeded x$PRGNAM
install -m0755 x$PRGNAM -o root -g root $PKG/usr/games/$PRGNAM
install -m0755 $PRGNAM.tcl -o root -g root $PKG/usr/games/$PRGNAM-launcher

mkdir -p $PKG/usr/libexec
strip $PRGNAM.sndsrv.linux
install -m0755 $PRGNAM.sndsrv.linux -o root -g root $PKG/usr/libexec/
install -m0755 $CWD/koules.kde -o root -g root $PKG/usr/libexec/

mkdir -p $PKG/usr/share/$PRGNAM
cp sounds/*.raw $PKG/usr/share/$PRGNAM

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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README TODO ANNOUNCE BUGS COPYING Card Koules.FAQ \
	$PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
cat $CWD/README > $PKG/usr/doc/$PRGNAM-$VERSION/README.SBo

mkdir -p $PKG/usr/share/pixmaps
cp Koules.xpm $PKG/usr/share/pixmaps/$PRGNAM.xpm

mkdir -p $PKG/usr/share/applications
cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop

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}