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#!/bin/bash

# Slackware build script for doomretro

# Copyright 2017 Dugan Chen Canada
# Copyright 2020 B. Watson
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# 20210224 bkw: update for v4.0.3
# 20200927 bkw: update for v3.6.1, reformat README to 72 chars
# 20200804 bkw: update for v3.5.10
# 20200413 bkw:
# - take over maintenance
# - update for v3.5.4
# - move binary to /usr/games
# - include wrapper script

# *** RANT MODE ON***
# Every Doom engine on the planet besides this one attempts to load *some*
# IWAD file, if you don't give it one on the command line. But this one is
# supposed to pop up a file dialog to let you choose one. Only the dialog
# code hasn't been ported to Linux. So for us, unlike *all other* Doom
# source ports, we *must* specify the IWAD file on the command line.  So I
# have to use a wrapper script to make it act like a normal Doom engine...
# *** RANT MODE OFF***

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

PRGNAM=doomretro
VERSION=${VERSION:-4.0.3}
BUILD=${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 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}

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 $PRGNAM-$VERSION

# All these --excludes save ~30MB in /tmp, and avoid the recursive chmod
# tripping over broken symlinks.
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz \
  --exclude=xcode \
  --exclude=codeblocks \
  --exclude=msvc \
  --exclude=SDL2\*

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 {} \+

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  make install/strip DESTDIR=$PKG
cd ..

mkdir -p $PKG/usr/games
mv $PKG/usr/bin/$PRGNAM $PKG/usr/games/$PRGNAM.bin
rm -rf $PKG/usr/bin
install -m0755 -oroot -groot $CWD/$PRGNAM.sh $PKG/usr/games/$PRGNAM

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

mkdir -p $PKG/usr/share/icons/hicolor/{16x16,24x24,32x32,48x48,256x256}/apps
convert res/$PRGNAM.ico[0] $PKG/usr/share/icons/hicolor/256x256/apps/$PRGNAM.png
convert res/$PRGNAM.ico[1] $PKG/usr/share/icons/hicolor/48x48/apps/$PRGNAM.png
convert res/$PRGNAM.ico[2] $PKG/usr/share/icons/hicolor/32x32/apps/$PRGNAM.png
convert res/$PRGNAM.ico[3] $PKG/usr/share/icons/hicolor/24x24/apps/$PRGNAM.png

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CODEOWNERS LICENSE *.md $PKG/usr/doc/$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