#!/bin/bash

# Slackware build script for OptiPNG
# Written by Oleg O. Chukaev
# Modified by B. Watson <urchlay@slackware.uk>
# Maintained by Lumin Etherlight <lumin+slackbuilds@etherlight.link>

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

# 20251023 lumin:
# - update for v7.9.1.
# - use new cmake build system.
# - remove txt/html/pdf man page copies.
# 20240916 lumin:
# - new maintainer.
# - minor readme modification.
# 20240905 bkw:
# - new maintainer.
# - update for v0.7.8.
# - build with system libpng as well as zlib.
# - run 'make test' by default, include results in doc dir.

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

PRGNAM=optipng
VERSION=${VERSION:-7.9.1}
BUILD=${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 [ ! -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 [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
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 build
pushd build
cmake -D OPTIPNG_USE_SYSTEM_LIBS=ON    \
      -D CMAKE_INSTALL_PREFIX=/usr     \
      -D CMAKE_INSTALL_MANDIR=/usr/man \
      ../

make CFLAGS="$SLKCFLAGS"
[ "${MAKETEST:-yes}" = "yes" ] && \
    make -s test &> maketest.txt
make install DESTDIR=$PKG
popd

# Calling make install/strip doesn't seem to work
# for some reason.  We do it ourselves instead.
strip --strip-unneeded $PKG/usr/bin/optipng 2> /dev/null || true
chmod 755 $PKG/usr/bin/optipng

gzip -9 $PKG/usr/man/man*/*

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a README.md AUTHORS.txt LICENSE.txt build/maketest.txt \
   doc/{history.txt,png_optimization.html,todo.txt} $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

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

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