#!/bin/bash

# Heavily based on the Slackware 14.0 SlackBuild
# Written by Matteo Rossini ( zerouno@slacky.it )
# Last build from Matteo Rossini ( zerouno@slacky.it )

# Slackware build script for compat32 multilibs
# Official Site: http://www.slackware.com

# 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.

set -e


SLACK=${SLACK:-14.0}
PKGNAME=compat32-libraries
VERSION=2.0
BUILD=${BUILD:-1}
TAG=${TAG:-sl}
ARCH=${ARCH:-x86_64}
SOURCE=http://ftp.osuosl.org/pub/slackware/slackware-$SLACK/slackware
TAR=      # empty = auto
DIR=      # empty = auto
SLACKBUILD="packages.txt"

# If EULA
if [ -e EULA.TXT ];then
  more EULA.TXT
  echo "Do you accept terms? (yes/[no])"
  read ACCEPT
  if [ "$ACCEPT" != "yes" ];then
    echo; echo "SlackBuild Aborted!!"
    exit 1
  fi
fi


CWD=`pwd`
TMP=${TMP:-/tmp/buildpkgs/$PKGNAME}
FILES=${FILES:$CWD/source}
PKG=$TMP/$PKGNAME-package
SRC=$TMP/src-$VERSION
OUTPUT=${OUTPUT:-$CWD}
PKGLIST=$(cat $CWD/packages.txt)
TAR=${TAR:-$(basename $SOURCE)}
DIR=${DIR:-$(echo "$TAR"|sed -r 's/(\.tar|)(.gz|.bz2|.xz|)$//')}

rm -rf $SRC $PKG $PKGTMP $TMP
mkdir -p $TMP $PKG $SRC $FILES


CHECKSUMS=$FILES/CHECKSUMS-$SLACK.md5
# if you choose to build 'current' you may need to delete manually an existent CHECKSUMS.md5
rm -f $CHECKSUMS
wget $WGETOPT -O $CHECKSUMS $SOURCE/CHECKSUMS.md5

DOINST=$PKG/install/doinst.sh
mkdir -p $PKG/install/
> $DOINST
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/content
NPACKS=$(echo $PKGLIST|wc -w )
PACKN=0
for PACK in $PKGLIST;do
  PACKN=$[$PACKN+1]
  cd $SRC
  

  SPLIT=($(cat $CHECKSUMS |grep "/$PACK-[^-]*-[^-]*-[^\.].t.z$"|sed -r 's#^([a-f0-9]*) *\./([a-z]*)/.*-([^-]*)-([^-]*)-([^\.]*)\.(t.z)$#\1 \2 \3 \4 \5 \6#'))
  PACKMD5=${SPLIT[0]}
  PACKNM=$PACK
  PACKLOC=${SPLIT[1]}
  PACKVER=${SPLIT[2]}
  PACKARCH=${SPLIT[3]}
  PACKBUILD=${SPLIT[4]}
  PACKEXT=${SPLIT[5]}
  PACKNAME=$PACKNM-$PACKVER-$PACKARCH-$PACKBUILD
  PACKFILE=$FILES/$PACKNAME.$PACKEXT
  PACKURL=$SOURCE/$PACKLOC/$PACKNAME.$PACKEXT
  echo -n "$PACKN/$NPACKS = PACKAGE: $PACKNM - ver: $PACKVER - arch: $PACKARCH - build: $PACKBUILD - ext: $PACKEXT - group: $PACKLOC... "

  if [ -e $PACKFILE ];then
    if [ "$PACKMD5" != "$(cat $PACKFILE|md5sum 2>/dev/null|awk '{print $1}')" ];then
      rm -f $PACKFILE
    fi
  fi
  if [ ! -e $PACKFILE ];then
    echo "Download 32bit package... "
    wget $WGETOPT $PACKURL -O $PACKFILE
  fi
  if [ "$PACKMD5" != "$(cat $PACKFILE|md5sum 2>/dev/null|awk '{print $1}')" ];then
    echo "ABORT! MD5 DOES NOT MATCH ($PACKFILE). REMOVE IT AND RETRY."
    exit 1
  fi

  PKGTMP=$SRC/$PACKNAME
  rm -rf $PKGTMP
  mkdir -p $PKGTMP

  echo -n "Exploding package... "
  cd $PKGTMP
  ( umask 000; tar xf $PACKFILE install usr/lib/ lib/ usr/bin/ etc/gtk-2.0/ etc/gtk-3.0/ etc/pango/ 2>/dev/null||true)
  if [ -e install/doinst.sh ];then cp -f install/doinst.sh $SRC/$PACKNAME.sh;fi

  # Only some of 32bit binaries (needed for boot):
  if [ "$PACKNM" = "gtk+2" -o "$PACKNM" = "gtk+3" -o  "$PACKNM" = "pango" -o "$PACKNM" = "gdk-pixbuf2" ]; then
    find usr/bin -type f ! -name "*-32" -exec mv {} {}-32 \;
  elif [ -d usr/bin ]; then
    #mkdir ./32
    #find usr/bin -type f -exec mv {} ./32 \;
    #rm -rf usr/bin/*
    #mv ./32 usr/bin/
    rm -rf usr/bin/
  fi


  >>install/doinst.sh

  sed -i -e '/( cd usr\/doc/d' -e '/\/bin\/sh/d' install/doinst.sh

  if [ "$PACKNM" = "gtk+2" -o "$PACKNM" = "gtk+3" -o  "$PACKNM" = "pango" -o "$PACKNM" = "gdk-pixbuf2" ]; then
    sed -i '/( cd usr\/bin/d' install/doinst.sh
    #if [ "$PACKNM" = "gtk+2" ]; then sed -i 's/\$(uname -m)/i486/' install/doinst.sh;fi
    #if [ "$PACKNM" = "gtk+3" ]; then sed -i 's/\$(uname -m)/i486/' install/doinst.sh;fi
  elif [ "$PACKNM" = "glibc-solibs" ];then
    #rm -rf usr/bin/*
    sed -i '/glibc.sh.new\|glibc.csh.new/d' install/doinst.sh
  else
    sed -i '/etc\/ld.so.conf/d' install/doinst.sh
    # Only keep lines that deal with symlinks in bin/32 and lib directories:
    sed -i -n '/lib \|lib\//p' install/doinst.sh
    #sed -i -n '/usr\/bin \|lib \|lib\//p' install/doinst.sh
    #sed -i 's#usr/bin#usr/bin/32#g' install/doinst.sh
  fi

  # The binutils need some extra consideration because the libraries in
  # /usr/i486-slackware-linux/lib will not be found by Slackware64:
  if [ "$PACKNM" = "binutils" ]; then
    mkdir -p usr/lib  # just in case
    for OLIB in $(find usr/i486-slackware-linux/lib -type f -maxdepth 1) ; do
      cp -a $OLIB usr/lib/
    done
    sed -i -n '/\/i486-slackware-linux/p' install/doinst.sh
    sed -i 's#/i486-slackware-linux##g'  install/doinst.sh
  fi

  if [ "$PACKNM" = "qt" -o "$PACKNM" = "python" ]; then
    #rm -rf usr/lib/qt*/mkspecs usr/lib/qt*/doc usr/lib/qt*/include 
    rm -rf usr/lib/qt/{bin,doc,include,mkspecs,phrasebooks,plugins,q3porting.xml,translations}
    rm -rf usr/lib/python*
    #sed -i '/usr\/bin/d' install/doinst.sh
    sed -i '/qt\/mkspecs/d' install/doinst.sh
  fi
  #if [ "$PACKNM" = "mysql" ]; then
  #  rm -rf usr/bin/*
  #fi

  if [ "$PACKNM" = "mesa" ];then
    rm -rf usr/lib/xorg
  fi


  echo "Merging package."
  if [ "$PACKNM" = "glibc-solibs" ];then
    cat $DOINST >>install/doinst.sh
    echo "# Package $PACKNAME" > $DOINST
    cat install/doinst.sh >> $DOINST
  else
    echo "# Package $PACKNAME" >> $DOINST
    cat install/doinst.sh >> $DOINST
  fi
  rm -rf install/


  
  find -type d -exec mkdir -p $PKG/{} \;
  find ! -type d -exec mv -f {} $PKG/{} \; -print > $PKG/usr/doc/$PKGNAME-$VERSION/content/$PACKNAME

  
  rm -rf $PKGTMP
done
cat $DOINST > $DOINST.2
echo '#!/bin/sh' > $DOINST
cat $DOINST.2 >> $DOINST
rm $DOINST.2

cd $CWD
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/
for SB in $PKGNAME.SlackBuild slack-desc doinst.sh doinst.sh.gz $SLACKBUILD;do
  [ -e $SB ]&&cp -r $SB $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/
done
cat $CWD/slack-desc > $PKG/install/slack-desc



cd $PKG
chown -R root:root .

/sbin/makepkg -l y -c y $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}

if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP $FILES
fi