#!/bin/bash
export LANG=C
export LC_ALL=C

#this option is optional
DISTRIBUTION=$1

. /etc/pbuilderrc
CHROOTEXEC="chroot $BUILDPLACE "

echo "Upgrading for distribution $DISTRIBUTION" 

#cd $MYREPOSITORY
#echo Initializing repository
#dpkg-scanpackages . . | gzip > Packages.gz
#dpkg-scansources . . | gzip > Sources.gz

echo cleaning the build env
rm -rf $BUILDPLACE

echo building the build env
mkdir -p $BUILDPLACE
cd $BUILDPLACE
tar xfzp $BASETGZ
mkdir -p $BUILDPLACE/tmp/buildd
for a in passwd hosts hostname resolv.conf; do 
  cp /etc/$a $BUILDPLACE/etc/$a;
done

if [ -n "$DISTRIBUTION" ]; then
  echo Installing apt-lines
  cat > $BUILDPLACE/etc/apt/sources.list << EOF
deb $MIRRORSITE $DISTRIBUTION main contrib non-free
deb-src $MIRRORSITE debian $DISTRIBUTION main contrib non-free
EOF
fi

echo Refreshing the base.tgz 
$CHROOTEXEC /usr/bin/apt-get update
$CHROOTEXEC /usr/bin/dpkg --purge lilo
$CHROOTEXEC /usr/bin/apt-get -y dist-upgrade
$CHROOTEXEC /usr/bin/apt-get -y install build-essential dpkg-dev apt $EXTRAPACKAGES
$CHROOTEXEC /usr/bin/apt-get clean
cd $BUILDPLACE
echo Creating base.tgz
tar cfz $BASETGZ *