#!/bin/bash

# Slackware build script for sms_sdl

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

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

# 20200104 bkw:
# - Whoops! The sms_sdl.png icon was actually a .gif. Fix & bump BUILD.

# 20160804 bkw:
# - fix and enhance sms_sdl.sh (qv), bump BUILD

# 20140907 bkw:
# - use gzipped patches to avoid \r being stripped by SBo git
# - update man page, convert to pod, move to section 6
# - install exe in /usr/games instead of /usr/bin
# - use the mime type x-sms-rom, predefined by freedesktop.org, instead
#   of including our own custom mime types. Since Slackware already has
#   this mime type, get rid of the option to disable mime.

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

PRGNAM=sms_sdl
VERSION=${VERSION:-0.9.4a_r7.1}
BUILD=${BUILD:-4}
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 the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
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}

SRCVER=$(echo $VERSION | sed 's/_/-/')

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

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$SRCVER
unzip $CWD/$PRGNAM-$SRCVER-src.zip
cd $PRGNAM-$SRCVER
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 {} \+

# Sorry for all the patches, upstream has been unmaintained since 2001 or so.

# Support OPTFLAGS in build process, enabled zipped rom support
zcat $CWD/patches/cflags_and_libz.diff.gz | patch -p1

# Thanks to Ellington Santos (necropresto) for this patch that makes
# the --fm and --japan options actually work:
zcat $CWD/patches/japan_and_fm.diff.gz | patch -p1

# x86_64 needs this patch to disable x86 asm + fix the int32, uint32 typedefs
# (but x86 doesn't need this!)
if [ "$ARCH" = "x86_64" ]; then
  zcat $CWD/patches/x86_64.diff.gz | patch -p1
fi

# Allow the ROM filename to appear anywhere on the command line, and
# avoid segfaulting on filenames that don't contain a dot.
zcat $CWD/patches/fix_option_parsing.diff.gz | patch -p1

cd sdl

# need to link with -lm
sed -i '/^LIBS/s,$, -lm,' Makefile

make OPTFLAGS="$SLKCFLAGS"

# There's no 'make install', plus we have this wrapper script...
mkdir -p $PKG/usr/games $PKG/usr/libexec
install -m0755 $CWD/$PRGNAM.sh $PKG/usr/games/$PRGNAM
install -s -m0755 $PRGNAM $PKG/usr/libexec/$PRGNAM

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README.TXT $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
cat $CWD/sample_config > $PKG/usr/doc/$PRGNAM-$VERSION/sample_config

# man page is part of this SlackBuild. If you're packaging for
# some other distribution, feel free to snag it.
mkdir -p $PKG/usr/man/man6
sed "s/\<VERSION\>/$VERSION/g" < $CWD/$PRGNAM.6 | \
  gzip -9c > $PKG/usr/man/man6/$PRGNAM.6.gz

# icon by finite (see REAME), desktop written for this build.
mkdir -p $PKG/usr/share/applications $PKG/usr/share/pixmaps
cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop
cat $CWD/$PRGNAM.png > $PKG/usr/share/pixmaps/$PRGNAM.png

mkdir -p $PKG/install
cat $CWD/doinst.sh > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE