#!/bin/bash
# Create guest root image
#
# Copyright (C) 2004  Eric Marchionni, Patrik Rayo
# Zuercher Hochschule Winterthur
#
# 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
#
# 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.

echo "Building root image"

. $PWD/scripts/function.sh

[ `id -u` -eq 0 ] || die "You must be root to run $0"
[ -f "$BASEIMG" ] || die "Base image $BASEIMG not found"

check_commands partprobe qemu-img qemu-nbd

load_qemu_nbd

mkdir -p $LOOPDIR
mkdir -p $ROOTIMGCOMPILEDIR

log_action "Creating root image $ROOTIMG"
execute "qemu-img create -b $BASEIMG -f $IMGEXT $ROOTIMG"

log_action "Connecting root image to NBD device $NBDEV"
execute "qemu-nbd -c $NBDEV $ROOTIMG"
do_on_exit qemu-nbd -d $NBDEV
partprobe $NBDEV

log_action "Mounting $NBDPARTITION to $LOOPDIR"
execute "mount $NBDPARTITION $LOOPDIR"
do_on_exit umount $LOOPDIR

log_action "Mounting proc filesystem to $LOOPDIR/proc"
execute "mount -t proc none $LOOPDIR/proc"
do_on_exit umount $LOOPDIR/proc

mkdir -p $LOOPDIR/root/compile
log_action "Mounting $ROOTIMGCOMPILEDIR as /root/compile"
execute "mount -o bind $ROOTIMGCOMPILEDIR $LOOPDIR/root/compile"
do_on_exit umount $LOOPDIR/root/compile

echo "Installing software from source"
RECPDIR=$TESTDIR/testing/scripts/recipes
RECIPES=`ls $RECPDIR/*.mk | xargs -n1 basename`
execute "cp -r $RECPDIR/patches $LOOPDIR/root/compile" 0
for r in $RECIPES
do
	cp $RECPDIR/$r ${LOOPDIR}/root/compile
	log_action "Installing from recipe $r"
	execute_chroot "make SWANVERSION=$SWANVERSION -C /root/compile -f $r"
done

log_action "Removing /etc/resolv.conf"
execute "rm -f $LOOPDIR/etc/resolv.conf"