#!/bin/bash

# Slackware build script for oblige-legacy4

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

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

# 20170621 bkw: fix build on -current.

# 20140916 bkw: bump BUILD to 2.
# - add man page
# - add mention of Hexen in README

# 20140827 bkw:
# - rename this build to oblige-legacy4 so we can update oblige to v6.
#   keep both around for now, as v6 lacks heretic/quake support.

# 20140213 bkw: bump BUILD to 2.
# Makefile.unixy updated so it installs data/doom[12]_boss (thanks to Black
# Rider for the bug report). Also get rid of +x permissions on the data files
# in /usr/share.

PRGNAM=oblige-legacy4
VERSION=${VERSION:-4.28b}
BUILD=${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}

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

OLDNAM="oblige"
SRCVER=${VERSION//./}
SRCNAM="Oblige" # grrrr!

rm -rf $PKG
mkdir -p $TMP $PKG/usr/bin $PKG/usr/share/$PRGNAM $OUTPUT
cd $TMP
rm -rf ${SRCNAM}-${VERSION}-source
unzip $CWD/$OLDNAM-$SRCVER-source.zip
cd ${SRCNAM}-${VERSION}-source
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 {} \;

# Makefile.unixy originally came from the oblige author, I've hacked
# it up to make it work with oblige 4.x and SBo's fltk13.
cp $CWD/Makefile.unixy Makefile

# Fix a missing include
sed -i '1i#include <unistd.h>' gui/lib_util.cc

# -current's gcc doesn't allow assigning a bool to a pointer without
# a cast:
sed -i '/button_line *= *false/s,false,0,' gui/ui_console.cc

# Legacy version shouldn't use same /usr/share and dotfile dir as
# current version.
sed -i "s,\.$OLDNAM,.$PRGNAM,g" doc/File_Layout.txt gui/main.cc
sed -i "s,share/$OLDNAM,share/$PRGNAM," gui/main.cc

make INSTALL_PREFIX=/usr OPTIMISE="$SLKCFLAGS"
make install INSTALL_PREFIX=$PKG/usr

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

# man page written for this build
mkdir -p $PKG/usr/man/man6
gzip -9c < $CWD/$PRGNAM.6 > $PKG/usr/man/man6/$PRGNAM.6.gz

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp *.txt doc/*.txt $PKG/usr/doc/$PRGNAM-$VERSION
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}