#!/bin/bash

# Slackware build script for fizmo

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

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

# 20180709 bkw: seems to have been exactly a year...
# - Updated for v0.8.5.
# - Use github download URL.
# - Add SDL2=no option.
# - Add support for glktermw and remglk.
# - Fix slack-desc and README typos.
# - Update README for new optional deps.
# - Make slack-desc show whether package built with (SDL2|glktermw|remglk).

# 20170709 bkw:
# - Updated for v0.8.5_b1. Normally we avoid betas, but 0.8.4 has a
#   horrible bug in its 'make install' target, and 0.8.5_b1 fixes
#   that bug and is otherwise identical to 0.8.4.
# - Add icon, .desktop, and doinst.
# - Add note about optional SDL2 dep to README.

PRGNAM=fizmo
VERSION=${VERSION:-0.8.5}
BUILD=${BUILD:-1}
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}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

# 0.8.5 doesn't really need this, but leave it in place in case someone
# wants to build 0.8.5_b1, or in case there's a future 0.8.6_b1 or
# so. Needed because upstream's beta versions have -b1 suffix, and Slack
# package version number can't have a dash.
SRCVER=${VERSION/_/-}

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

# The configure script doesn't autodetect when sdl2 is missing,
# so let's help it out a little.
if [ "${SDL2:-yes}" = "yes" ] && pkg-config --exists sdl2; then
  SDLARG="--enable-sdl"; SDLYN="yes"
else
  SDLARG="--disable-sdl"; SDLYN="no"
fi

# Likewise glktermw. Niche-market, but include for completeness' sake.
if [ "${GLK:-yes}" = "yes" -a -e /usr/include/glktermw/glk.h ]; then
  GLKARG="--enable-glktermw --with-glktermw-includedir=/usr/include/glktermw"
  GLKYN="yes"
else
  GLKARG="--disable-glktermw"
  GLKYN="no"
fi

# remglk looks even more niche-market than glktermw... speaks JSON, not
# English, intended for stuff like a web or irc backend.
if [ "${REMGLK:-yes}" = "yes" -a -e /usr/include/remglk/glk.h ]; then
  REMGLKARG="--enable-remglk --with-remglk-includedir=/usr/include/remglk"
  REMGLKYN="yes"
else
  REMGLKARG="--disable-remglk"
  REMGLKYN="no"
fi

# fizmo-glktermw and fizmo-remglk don't have man pages. They're
# experimental meaning likely to change frequently, so I'm too lazy to
# write man pages for them.

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

make
make install-strip DESTDIR=$PKG
ln -s $PRGNAM-ncursesw $PKG/usr/games/$PRGNAM

gzip -9 $PKG/usr/man/man6/*.6
ln -s $PRGNAM-ncursesw.6.gz $PKG/usr/man/man6/$PRGNAM.6.gz

( cd doc ; ./create-txts.sh )
rm -f INSTALL.txt QUICKSTART.txt # don't need install instructions

# Icon created by SlackBuild author, based on Slackware 14.2's
# /usr/share/pixmaps/xterm-color_48x48.xpm
mkdir -p $PKG/usr/share/pixmaps
cat $CWD/$PRGNAM.png > $PKG/usr/share/pixmaps/$PRGNAM.png

# Desktop file written by SlackBuild author. It starts the curses version,
# since the SDL2 version doesn't have a file-picker dialog if you start
# it with no arguments (plus, SDL2 is optional).
mkdir -p $PKG/usr/share/applications
cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a *.txt $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
sed -e "s,@SDLYN@,$SDLYN," \
    -e "s,@GLKYN@,$GLKYN," \
    -e "s,@REMGLKYN@,$REMGLKYN," \
    $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}