#!/bin/bash -e

# Part 2 of debathena-livecd-convert, run inside the chroot
#bash

function cleanup {
    #bash
    umount -l /proc
    umount -l /sys
    umount -l /lib/modules/*/volatile || :
}
trap cleanup EXIT SIGINT SIGTERM

EXTRA_PACKAGES="$(cat /tmp/extra-packages)"
EXTRA_NO_RECOMMENDS="$(cat /tmp/extra-no-recommends)"
PURGE="$(cat /tmp/purge)"
aptmods="$(cat /tmp/aptmods)"

PURGE_MINUS=""
for p in $PURGE ; do
    PURGE_MINUS="$PURGE_MINUS ${p}~i_"
done

orig_vmlinuz=$(readlink /vmlinuz)

# Mount special filesystems
mount -t proc none /proc
mount -t sysfs none /sys

# Programs like these to be set
export HOME=/root
export LC_ALL=C

# Mod sources.list
echo "Modifying sources.list."
sed -ri 's/^\#\s*(deb.+universe)$/\1/' /etc/apt/sources.list
# Add updates
if [[ $(lsb_release -sc) = 'hardy' ]] ; then
    cat >> /etc/apt/sources.list <<EOF

## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-updates main restricted
EOF
fi
# Add Debathena
cat > /etc/apt/sources.list.d/debathena.list <<EOF
# Debathena
deb http://debathena.mit.edu/apt `lsb_release -sc` debathena debathena-config debathena-system openafs
deb-src http://debathena.mit.edu/apt `lsb_release -sc` debathena debathena-config debathena-system openafs
EOF

# Get public key
apt-key add /tmp/debathena-archive-keyring.gpg

# Hack because polkit-auth doesn't work in the chroot
dpkg-divert --divert /usr/bin/polkit-auth.real --rename /usr/bin/polkit-auth
echo "#!/bin/sh" > /usr/bin/polkit-auth
chmod a+rx /usr/bin/polkit-auth

export DEBIAN_FRONTEND=noninteractive

# Up{date,grade}
echo "Updating..."
aptitude update

# Install some stuff
echo "Installing Debathena and removing unnecessary packages to free space..."
#echo "sun-java6-bin shared/accepted-sun-dlj-v1-1 boolean false" | debconf-set-selections
aptitude install -Ry $EXTRA_NO_RECOMMENDS
aptitude install -ry debathena-login-graphical \
    debathena-standard \
    openafs-modules-generic \
    ubuntu-desktop \
    linux-generic \
    openafs-modules-dkms: \
    $EXTRA_PACKAGES \
    $PURGE_MINUS

if [ -n "$aptmods" ] ; then
    aptitude install -ry "$aptmods"
fi

echo "Upgrading stuff..."
aptitude -y full-upgrade

# Remove old kernels if we upgraded
kernel="$(readlink /vmlinuz | cut -d - -f 2-3)"
aptitude purge -y '~nlinux-image-2!~nlinux-image-'"${kernel}~i" "~nlinux-headers~i"

#bash

# Set timezone
rm /etc/localtime
cp -f /usr/share/zoneinfo/America/New_York /etc/localtime
echo "America/New_York" > /etc/timezone

# Update the initramfs; this will have already happened if we installed
# a new kernel
if [[ "$orig_vmlinuz" = "$(readlink /vmlinuz)" ]] ; then
    update-initramfs -u
fi

aptitude clean

# Cache packages that we'd need to install debathena-workstation, but
# don't actually install them
# -xavid: punt this in favor of more installed software
#echo "Downloading additional debathena-workstation packages..."
#aptitude install -y --download-only debathena-workstation
#aptitude keep-all

rm /usr/bin/polkit-auth
dpkg-divert --rename --remove /usr/bin/polkit-auth

# From here, it exits the chroot and goes back to the debathena-livecd-convert script
echo yay > /tmp/success