#!/bin/sh

# Slackware build script for xroar

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

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

# 20140824 bkw:
# - update for 0.32
# - somehow I lost the POD source to the man page, recreate from xroar.6

# 20140313 bkw:
# - update for 0.31.1
# - change download link to upstream's, looks OK now
# - update alsa_first.diff (module.c -> src/module.c)
# - update man page (new options, convert to POD)
# - add jack support

# 20130617 bkw:
# - update for 0.29.5

# 20121218 bkw:
# - update for 0.28.1
# - change download link to my own server, since upstream changes their URL
#   for every release
# - include missing .png file for HTML doc
# - add patch to prefer ALSA over OSS
# - LDFLAGS=-lm (wasn't needed for old version)
# - mention gtkglext in README as an optional dep

PRGNAM=xroar
VERSION=${VERSION:-0.32}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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

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

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"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.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 \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Have the emulator try ALSA before OSS. This prevents the emu from
# taking over the ALSA device when using OSS emulation (stops other
# apps from making any sound at all!)
patch -p1 < $CWD/alsa_first.diff

# Not sure why anyone would need this, but it's easy to support.
JACKOPT="--disable-jack"
[ "${JACK:-no}" = "yes" ] && JACKOPT="--enable-jack"

# fix underlinking via LDFLAGS instead of a .diff

LDFLAGS="-lm" \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  $JACKOPT \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --build=$ARCH-slackware-linux

make
make install DESTDIR=$PKG
strip $PKG/usr/bin/$PRGNAM

mv $PKG/usr/share/info $PKG/usr/info
rm -rf $PKG/usr/share
rm -f $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*.info*

mkdir -p $PKG/usr/share/xroar/roms

# Mini-firmware. This is a freeware, incomplete implementation of the
# Dragon32 extended BASIC, allows running at least some programs.
# dragon.rom comes from http://www.6809.org.uk/dragon/dragon.rom
cat $CWD/dragon.rom > $PKG/usr/share/$PRGNAM/roms/mini-dragon.rom

# Optional ROM images (from MESS site)
for zip in coco coco2 cocoe dragon32 dragon64; do
  if [ -e $CWD/$zip.zip ]; then
    rm -f *.rom
    unzip $CWD/$zip.zip
    install -oroot -groot -m0644 *.rom $PKG/usr/share/$PRGNAM/roms
  fi
done

# If the user doesn't include a d32.rom from a zip file, make the mini-rom
# the default (at least the emu will start, that way)
if [ ! -e $PKG/usr/share/$PRGNAM/roms/d32.rom ]; then
	ln -s mini-dragon.rom $PKG/usr/share/$PRGNAM/roms/d32.rom
fi

# Man page written for this SlackBuild
mkdir -p $PKG/usr/man/man6
sed "s,_VERSION_,$VERSION,g" < $CWD/$PRGNAM.6 | gzip -9c > $PKG/usr/man/man6/$PRGNAM.6.gz

# Icon taken from Fedora package here:
# ftp://mirror.switch.ch/pool/3/mirror/rpmfusion/free/fedora/updates/8/i386/xroar-0.21-2.fc8.i386.rpm
# Current versions of xroar include windows and mac icons that are larger,
# but they don't include the word 'xroar' (just the X-shaped graphic), so
# I'm sticking with the old Fedora icon.
mkdir $PKG/usr/share/pixmaps
cat $CWD/$PRGNAM.png > $PKG/usr/share/pixmaps/$PRGNAM.png

mkdir $PKG/usr/share/applications
cp $CWD/*.desktop $PKG/usr/share/applications

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
# Don't bother with the README: it's only about installation, not usage
cp -a COPYING* ChangeLog $PKG/usr/doc/$PRGNAM-$VERSION

# HTML version of the info page, for those who hate info pages...
make doc/$PRGNAM.html
cp doc/$PRGNAM.html doc/*png $PKG/usr/doc/$PRGNAM-$VERSION

# Don't keep duplicates of the doc images, use symlinks
cd $PKG/usr/info
for i in *.png; do
  if [ -e ../doc/$PRGNAM-$VERSION/$i ]; then
    rm -f $i
    ln -s ../doc/$PRGNAM-$VERSION/$i .
  fi
done

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}