# -*-Shell-script-*-
#
# Common functions for MyPLC build scripts (build_devel.sh and
# build.sh)
#
# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
# $Id:$
#

PATH=/sbin:/bin:/usr/sbin:/usr/bin

# In both a normal CVS environment and a PlanetLab RPM
# build environment, all of our dependencies are checked out into
# directories at the same level as us.
if [ -d ../build ] ; then
    PATH=$PATH:../build
    srcdir=..
else
    echo "Error: Could not find $(cd .. && pwd -P)/build/"
    exit 1
fi

export PATH

. build.common

pl_process_fedora_options $@
shiftcount=$?
shift $shiftcount

# XXX Backwards compatibility with old myplc-devel environment
# We may be running inside a myplc-devel environment, which can
# override these defaults.
if [ -f /etc/planetlab/plc_config ] ; then
    . /etc/planetlab/plc_config
    [ ! -z "$PLC_DEVEL_FEDORA_RELEASE" ] && pl_FEDORA_RELEASE=$PLC_DEVEL_FEDORA_RELEASE
    [ ! -z "$PLC_DEVEL_FEDORA_ARCH" ] && pl_FEDORA_ARCH=$PLC_DEVEL_FEDORA_ARCH
    [ ! -z "$PLC_DEVEL_FEDORA_URL" ] && pl_FEDORA_URL=$PLC_DEVEL_FEDORA_URL
fi

# Do not tolerate errors
set -e

# Be verbose
set -x

# Make a basic chroot at the specified location given the specified
# configuration.
make_chroot() {
    root=$1
    config=$2

    # Get group list
    groups=
    while read group ; do
	groups="$groups -g \"$group\""
    done < <(./plc-config --groups $config)

    # Get package list
    packages=
    while read package ; do
	packages="$packages -p \"$package\""
    done < <(./plc-config --packages $config)

    pl_setup_chroot $root $packages $groups
}

# Move specified directories out of the chroot and into a "data"
# directory that will be bind mounted on /data inside the chroot.
move_datadirs() {
    root=$1
    data=$2
    shift 2
    pl_move_dirs $root $data /data "$@"
}

# Make loopback filesystem from specified location
make_image() {
    root=$1
    image=$2
    pl_make_image $root $image 100000000
}