#!/bin/sh

# Copyright 2005-2009  Patrick J. Volkerding, Sebeka, Minnesota, 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.

VERSION=4.2.4
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-ncompress

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf ncompress-${VERSION}
tar xzf $CWD/ncompress-${VERSION}.tar.gz
cd ncompress-${VERSION}
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

zcat $CWD/ncompress.make.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/ncompress.lfs2.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/ncompress.filenamelen.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/ncompress.2GB.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/ncompress.zerobyteforce.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/ncompress-${VERSION}-bssUnderflow.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/ncompress-${VERSION}-endians.patch.gz | patch -p1 --verbose || exit 1

make ENDIAN=4321 || exit 1
mkdir -p $PKG/usr/bin
cat compress > $PKG/usr/bin/compress
chmod 755 $PKG/usr/bin/compress
( cd $PKG/usr/bin ; ln -sf compress uncompress )
mkdir $PKG/bin
( cd $PKG/bin ; ln -sf /usr/bin/compress compress )
( cd $PKG/bin ; ln -sf compress uncompress )
mkdir -p $PKG/usr/man/man1
cat compress.1 | gzip -9c > $PKG/usr/man/man1/compress.1.gz
echo '.so man1/compress.1' | gzip -9c > $PKG/usr/man/man1/uncompress.1.gz
mkdir -p $PKG/usr/doc/ncompress-${VERSION}
cp -a \
  Acknowleds LZW.INFO README \
  $PKG/usr/doc/ncompress-${VERSION}

# Strip everything for good measure:
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

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

# Build the package:
cd $PKG
makepkg -l y -c n $TMP/ncompress-$VERSION-$ARCH-$BUILD.txz