flatcar-scripts/get_latest_image.sh
Brian Harring aa13ea4658 Shift crosutils scripts to use the common.sh they were written against.
Rather than trying to use an old/stale common.sh, use the common.sh
from the invocation point- if invoked via /usr/lib/crosutils, use that
common.sh.  If invoked via src/scripts/, use that, etc.

Trying to intermix it just introduces potential for bugs and invalidly
freezes common.sh api, thus the efforts to revert this and ultimately
revert the existing of a crosutils ebuild.

BUG=chromium-os:27201
TEST=cbuildbot x86-generic-full

Change-Id: I4c6c5fbade3d28c71752bd4c44dccad49af52ec0
Reviewed-on: https://gerrit.chromium.org/gerrit/18303
Reviewed-by: David James <davidjames@chromium.org>
Commit-Ready: Brian Harring <ferringb@chromium.org>
Tested-by: Brian Harring <ferringb@chromium.org>
2012-03-15 23:35:06 -07:00

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#!/bin/bash
# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Prints the path to the most recently built image to stdout.
SCRIPT_ROOT=$(dirname $(readlink -f "$0"))
. "${SCRIPT_ROOT}/common.sh" || { echo "Unable to load common.sh"; exit 1; }
get_default_board
DEFINE_string board "$DEFAULT_BOARD" \
"The name of the board to check for images."
# Parse command line flags
FLAGS "$@" || exit 1
eval set -- "${FLAGS_ARGV}"
# Check on the board that they are trying to set up.
if [ -z "$FLAGS_board" ] ; then
die "Error: --board required."
fi
IMAGES_DIR="${DEFAULT_BUILD_ROOT}/images/${FLAGS_board}"
# If there are no images, error out since presumably the
# caller isn't doing this for fun.
if [[ ! -d ${IMAGES_DIR} ]] ; then
die "${IMAGES_DIR} does not exist; have you run ./build_image?"
fi
# Use latest link if it exists, otherwise most recently changed dir
if [ -L ${IMAGES_DIR}/latest ] ; then
if ! dst=$(readlink "${IMAGES_DIR}"/latest) ; then
die "Could not read ${IMAGES_DIR}/latest; have you run ./build_image?"
fi
DEFAULT_FROM="${IMAGES_DIR}/${dst}"
else
DEFAULT_FROM=$(ls -dt "$IMAGES_DIR"/*/ | head -1)
fi
echo $DEFAULT_FROM