#!/bin/sh
# adt-build-lxc is part of autopkgtest
# autopkgtest is a tool for testing Debian binary packages
#
# autopkgtest is Copyright (C) 2006-2014 Canonical Ltd.
#
# Build or update a container with the debian or ubuntu LXC template
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# See the file CREDITS for a full list of credits information (often
# installed as /usr/share/doc/autopkgtest/CREDITS).
set -e

DISTRO="$1"
RELEASE="$2"
if [ -z "$1" ] || [ -z "$2" ]; then
    echo "Usage: $0 debian|ubuntu <release>" >&2
    exit 1
fi

NAME="adt-${RELEASE}"

# fall back for older LXC option name
LXCDIR=`lxc-config lxc.lxcpath` || LXCDIR=`lxc-config lxcpath`

setup() {
    # add deb-src
    sed -i '/^deb/ { p; s/^deb/deb-src/}' $LXCDIR/$1/rootfs/etc/apt/sources.list
    lxc-start -d -n $1
    sleep 10
    lxc-attach -n $1 apt-get update
    lxc-stop -n $1
}

if [ ! -e $LXCDIR/$NAME ]; then
    # first-time run: just create the container
    APT_PROXY=apt lxc-create -n $NAME -t $DISTRO -- -r $RELEASE -F
    setup $NAME
else
    # create a new rootfs in a temp container
    APT_PROXY=apt lxc-create -n ${NAME}.new -t $DISTRO -- -r $RELEASE -F
    setup ${NAME}.new
    # replace the original rootfs
    rsync -aHAXS --numeric-ids --delete $LXCDIR/${NAME}.new/rootfs $LXCDIR/${NAME}/rootfs
    lxc-destroy -n ${NAME}.new
fi
