#!/bin/sh
# This needs to be run as root!

ISO_URL=ftp://ftp.join.uni-muenster.de/pub/software/CTAN/systems/texlive/Images/texlive2007-inst-20070212.iso
TMPDIR=`mktemp -d -p /tmp/` || exit 1



if [ $UID != 0 ]
then
 echo "This needs to be run as root. Exiting..."
 exit 1
fi


function cleanup {
 rm -fr "$TMPDIR"
}

function failure {
 cleanup
 exit 1
}


trap cleanup EXIT SIGHUP SIGINT SIGTERM

# Download and mount iso image
echo "Downloading to ${TMPDIR}."
mkdir "${TMPDIR}/mnt" || failure
cd "${TMPDIR}"
wget "$ISO_URL" "${TMPDIR}/texlive.iso" || failure 
mount -o loop -t iso9660 "${TMPDIR}/texlive.iso" "${TMPDIR}/mnt" || failure

# Make packages
echo "Building tar.gz files."
cp "${TMPDIR}/mnt/source/source.tar.gz" "/usr/portage/distfiles/texlive-2007-src.tar.gz" || failure
tar czspf "${TMPDIR}/texlive-2007-texmf.tar.gz" "${TMPDIR}/mnt/texmf" || failure
tar czspf "${TMPDIR}/texlive-2007-texmf-dist.tar.gz" "${TMPDIR}/mnt/texmf-dist" || failure

echo "Moving packages to /usr/portage/distfiles/."
mv "${TMPDIR}/texlive-2007-*.tar.gz" /usr/portage/distfiles/