flatcar-scripts/get_latest_image.sh
Mike Frysinger c9dfcaf480 get_latest_image: ignore files when searching for latest images
If files are in the board build dir with newer mtimes than the dirs
or symlinks, then the get_latest_image code selects the file instead
of the latest dir.  And then it all falls down:
	Cannot find image directory /path/to/file

So tweak the look up code by having bash do the expansion of dirs
only, and then let ls do the mtime sorting.

BUG=None
TEST=`./image_to_usb.sh --board=x86-alex -y --to=/dev/sdb` still works after deleting "latest"
Change-Id: Ic06a2ddd0206748d35cb7762009df67a267d4746
Reviewed-on: http://gerrit.chromium.org/gerrit/10258
Reviewed-by: Chris Sosa <sosa@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
2011-10-19 19:14:42 -07:00

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Bash
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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.
# --- BEGIN COMMON.SH BOILERPLATE ---
# Load common CrOS utilities. Inside the chroot this file is installed in
# /usr/lib/crosutils. Outside the chroot we find it relative to the script's
# location.
find_common_sh() {
local common_paths=(/usr/lib/crosutils $(dirname "$(readlink -f "$0")"))
local path
SCRIPT_ROOT=
for path in "${common_paths[@]}"; do
if [ -r "${path}/common.sh" ]; then
SCRIPT_ROOT=${path}
break
fi
done
}
find_common_sh
. "${SCRIPT_ROOT}/common.sh" || { echo "Unable to load common.sh"; exit 1; }
# --- END COMMON.SH BOILERPLATE ---
get_default_board
DEFINE_string board "$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, return nothing
[ -d $IMAGES_DIR ] || exit 0
# Use latest link if it exists, otherwise most recently changed dir
if [ -L ${IMAGES_DIR}/latest ] ; then
DEFAULT_FROM="${IMAGES_DIR}/`readlink ${IMAGES_DIR}/latest`"
else
DEFAULT_FROM=$(ls -dt "$IMAGES_DIR"/*/ | head -1)
fi
echo $DEFAULT_FROM