#!/bin/bash
#
# System installer, vmdebootstrap version.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load.
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Make sure there is provision config.
function hydra_provision_config {
  hydra_user_config   image             /var/cache/qemu/debian/box.img   "Destination image"
  hydra_user_config   size              3G                               "Image size"
  hydra_user_config   format            qcow2                            "Image format: raw or qcow2"
  hydra_user_config   hostname          machine                          "Hostname"
  hydra_user_config   domain            example.org                      "Domain"
  hydra_user_config   arch              amd64                            "System arch"
  hydra_user_config   version           stretch                          "Distro version"
  hydra_user_config   mirror            http://http.debian.net/debian/   "Debian mirror"
}

# Load configuration
hydra_provision_config_load $1

# Get config parameters
hydra_provision_config

# Check
if [ -e "$image" ]; then
  echo "error: $image already exists."
  exit 1
fi

# Ensure base folder exists
hydra_sudo_run mkdir -p `dirname $image`

#
# vmdebootstrap version
#
# Check for requirements
for req in vmdebootstrap mbr; do
  hydra_install_package $req
done

# Image format
if [ "$format" == "qcow2" ]; then
  format="--convert-qcow2"
else
  formt=""
fi

# Run
hydra_sudo_run vmdebootstrap --verbose --image=$image --size=$size --distribution=$version \
                             --mirror=$mirror --arch=$arch --hostname=$hostname.$domain    \
                             --grub $format

# Fix permissions
hydra_sudo_run chown -R `whoami`. `dirname $image`

# Cleanup
hydra_sudo_run rm debootstrap.log
hydra_sudo_run rm ${image}.raw