#!/bin/bash

# Slackware build script for zoom

# Written by B. Watson (urchlay@slackware.uk)

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

# 20211011 bkw: BUILD=2
# - binary in /usr/games.
# - update man page.
# - do NOT move man page to section 6, there's already a zoom(6), which
#   is part of xscreensaver.
# - finally noticed that the Linux build of zoom does *not* play
#   TADS, HUGO, or Glulx games. The Mac OSX Cocoa build does, but the
#   extra code is in Objective C and doesn't look like it's portable
#   to non-Mac platforms. So update README, slack-desc, and the man
#   page to reflect that this is a Z-Code-only interpreter.
# - add a few bugfix patches from Debian.
# - new-style icons.
# 20170621 bkw: fix build for -current

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=zoom
VERSION=${VERSION:-1.1.5}
BUILD=${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 [ ! -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 $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# 20211011 bkw: replace my old no_inline.patch with Debian's.
# config_xft.diff, remove_rice.diff, zoomrc_in_etc.diff are mine. The
# rest of patches/ came from Debian's zoom-player patchlevel 6.
# This includes a couple of fixes for crashing bugs.
for i in $( cat $CWD/patches/series ); do
  echo "=== applying $i"
  patch -p1 < $CWD/patches/$i
done

# 20211011 bkw: note to self: --enable-new-terp defines HAVE_COMPUTED_GOTOS
# in config.h. Supposedly this might be faster on some architectures, and
# slower on others. I don't enable this feature because:
# - The games already run fast enough.
# - The Debian packagers didn't enable it, so it's not likely to be
#   well-tested.
# - I'd have to spend time/effort trying to figure out how to benchmark
#   the interpreter to see if it even made a difference.

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --bindir=/usr/games \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

# Move config file to /etc, since we patched it for that.
mkdir -p $PKG/etc/$PRGNAM
mv $PKG/usr/share/$PRGNAM/${PRGNAM}rc $PKG/etc/$PRGNAM/${PRGNAM}rc.new

# If zoom is run with no arguments, it shows a menu of games from its
# default location. Let's make this the same location inform installs
# its example games to (also, zork installs its games here).
mkdir -p $PKG/usr/share/zcode
ln -s ../zcode $PKG/usr/share/$PRGNAM/games

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
rm -f manual/Makefile*
cp -a AUTHORS COPYING ChangeLog NEWS README THANKS TODO manual \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# Icons extracted from src/macos/zoom-app.icns with icns2png from
# the libicns package. There was no 48x48 or 64x64, so I scaled
# the 128x128 one down with convert(1). I didn't include the 512x512
# or 256x256 icons, AFAIK nothing uses icons that large (yet?).
for i in $CWD/icons/*.png; do
  px=$( basename $i | cut -d. -f1 )
  size=${px}x${px}
  dir=$PKG/usr/share/icons/hicolor/$size/apps
  mkdir -p $dir
  cat $i > $dir/$PRGNAM.png
done

mkdir -p $PKG/usr/share/pixmaps/
ln -s ../icons/hicolor/64x64/apps/$PRGNAM.png $PKG/usr/share/pixmaps/$PRGNAM.png

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

mkdir -p $PKG/usr/man/man1
sed "s,@VERSION@,$VERSION,g" < $CWD/$PRGNAM.1 \
    | gzip -9c > $PKG/usr/man/man1/$PRGNAM.1.gz

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