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#!/bin/sh
# Copyright (C) 2012,2013  Codethink Limited
# 
# 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; version 2 of the License.
# 
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

# Wrapper around morph for use by cmdtest tests. This does several things:
#
#   * simpler command lines for running morph, so that each test does not
#     need to add --no-default-config and other options every time
#   * replace temporary filenames ($DATADIR) in the output with a known
#     string ("TMP"), so that test output is deterministic

set -eu

# Set PATH to include the source directory. This is necessary for
# distributed builds, which invoke morph as a sub-process.
export PATH="$SRCDIR:$PATH"

if [ "$1" = "--find-system-artifact" ]; then
    shift

    "$SRCDIR/morph" --no-default-config \
        --tarball-server= --cache-server= \
        --cachedir-min-space=0 --tempdir-min-space=0 \
        --config="$DATADIR/morph.conf" --verbose "$@" > $DATADIR/stdout

    ARTIFACT=$(grep "system \S\+-rootfs is cached at" "$DATADIR/stdout" | \
        sed -nre "s/^.*system \S+-rootfs is cached at (\S+)$/\1/p")
    rm "$DATADIR/stdout"

    if [ ! -e "$ARTIFACT" ]; then
        echo "Unable to find rootfs artifact: $ARTIFACT" 1>&2
        exit 1
    fi

    echo $ARTIFACT
else
    "$SRCDIR/scripts/cmd-filter" "$SRCDIR/morph" --no-default-config \
        --cachedir-min-space=0 --tempdir-min-space=0 \
        --tarball-server= --cache-server= \
        --config="$DATADIR/morph.conf" "$@"
fi