#!/bin/bash

# Slackware build script for pngquant

# Ryan P.C. McQuen | Everett, WA | ryanpcmcquen@member.fsf.org
# 2017 - Dhaby Xiloj - <slack.dhabyx@gmail.com>

# Copyright 2013-2015 Kyle Guinn <elyk03@gmail.com>, USA
# 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.

wget -c https://github.com/kornelski/pngquant/archive//3.0.3/pngquant-3.0.3.tar.gz

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

PRGNAM=pngquant
VERSION=${VERSION:-3.0.3}
TAG=_gfs
BUILD=${BUILD:-1}
PKGTYPE=${PKGTYPE:-txz}

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=${TMP:-/tmp/gfs}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-$CWD}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
  CARGOTARGET="--target i586-unknown-linux-gnu"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  CARGOTARGET="--target i686-unknown-linux-gnu"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
  CARGOTARGET="--target x86_64-unknown-linux-gnu"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -march=armv8-a -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
  CARGOTARGET="--target aarch64-unknown-linux-gnu"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
  CARGOTARGET=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.?z || exit 1
cd $PRGNAM-$VERSION || exit 1
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 \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

CARGO_HOME=.cargo \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
cargo build --release $CARGOTARGET

#install -D -m0755 lib/libimagequant.so.0 $PKG/usr/lib${LIBDIRSUFFIX}/libimagequant.so.0
#install -D -m0644 lib/libimagequant.a $PKG/usr/lib${LIBDIRSUFFIX}/libimagequant.a
#install -D -m0644 lib/libimagequant.h $PKG/usr/include/libimagequant.h

find $PKG/usr/man -type f -exec gzip -9 {} +

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CHANGELOG COPYRIGHT INSTALL README.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
if [ -f $CWD/slack-suggests ]; then cat $CWD/slack-suggests > $PKG/install/slack-suggests; fi
if [ -f $CWD/slack-conflicts ]; then cat $CWD/slack-conflicts > $PKG/install/slack-conflicts; fi

cd $PKG
if [ -f $CWD/slack-required ]; then cat $CWD/slack-required > $PKG/usr/doc/$PRGNAM-$VERSION/slack-required; fi
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE