flatcar-scripts/clean_loopback_devices
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/sh
# Copyright (c) 2010 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.
#
# Force cleans loopback devices from within your chroot environment. This
# script is to help mitigate losing loopback devices on build_images
# failures. This script only affects mountpoints and loopback devices
# that were created within this chroot.
SCRIPT_ROOT=$(dirname $(readlink -f "$0"))
. "${SCRIPT_ROOT}/common.sh" || { echo "Unable to load common.sh"; exit 1;}
# Script must be run inside the chroot.
assert_inside_chroot
get_default_board
DEFINE_string output_root "$DEFAULT_BUILD_ROOT/images" \
"Directory in which to place image result directories (named by version)"
DEFINE_string board "$DEFAULT_BOARD" \
"The board to build an image for."
# Parse command line.
FLAGS "$@" || exit 1
eval set -- "${FLAGS_ARGV}"
if [[ -z "${FLAGS_board}" ]]; then
error "--board is required."
exit 1
fi
OUTPUT_DIR="${FLAGS_output_root}/${FLAGS_board}"
echo 'This will unmount all directories matching /tmp/esp.*'
echo "and any directory under $OUTPUT_DIR"
read -p "Are you sure (y/N)? " SURE
SURE="${SURE:0:1}" # Get just the first character
if [ "${SURE}" != "y" ]; then
echo "Ok, better safe than sorry."
exit 1
fi
sudo umount "$OUTPUT_DIR"/*/* 2> /dev/null
sudo umount /tmp/esp.* 2> /dev/null
sudo losetup -d /dev/loop* 2> /dev/null