chromeos-installer: delete unused files

bin/cros_mod_image_for_recovery.sh

-#!/bin/bash
-
-# 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.
-
-# Script to modify a pristine/dev Chrome OS image to be used for recovery
-
-. "/usr/lib/crosutils/common.sh"
-
-# Load functions and constants for chromeos-install
-. "/usr/lib/installer/chromeos-common.sh"
-
-# Script must be run inside the chroot.
-restart_in_chroot_if_needed $*
-
-get_default_board
-
-RECOVERY_IMAGE="recovery_image.bin"
-
-DEFINE_string board "$DEFAULT_BOARD" "Board for which the image was built"
-DEFINE_string image "" "Location of the rootfs raw image file"
-DEFINE_string output "${RECOVERY_IMAGE}" \
-  "(optional) output image name. Default: ${RECOVERY_IMAGE}"
-
-# Parse command line
-FLAGS "$@" || exit 1
-eval set -- "${FLAGS_ARGV}"
-
-# No board, no default and no image set then we can't find the image
-if [ -z $FLAGS_image ] && [ -z $FLAGS_board ] ; then
-  setup_board_warning
-  die "cros_mod_image_for_recovery failed.  No board set and no image set"
-fi
-
-# We have a board name but no image set.  Use image at default location
-if [ -z $FLAGS_image ] ; then
-  IMAGES_DIR="${DEFAULT_BUILD_ROOT}/images/${FLAGS_board}"
-  FILENAME="chromiumos_image.bin"
-  FLAGS_image="${IMAGES_DIR}/$(ls -t $IMAGES_DIR 2>&-| head -1)/${FILENAME}"
-fi
-
-# Turn path into an absolute path.
-FLAGS_image=$(eval readlink -f ${FLAGS_image})
-
-# Abort early if we can't find the image
-if [ ! -f $FLAGS_image ] ; then
-  echo "No image found at $FLAGS_image"
-  exit 1
-fi
-
-set -e
-
-# Constants
-IMAGE_DIR="$(dirname "$FLAGS_image")"
-IMAGE_NAME="$(basename "$FLAGS_image")"
-
-# loop device utility methods mostly duplicated from
-#   src/platform/installer/chromeos-install
-# TODO(tgao): minimize duplication by refactoring these methods into a separate
-# library script which both scripts can reference
-
-# Set up loop device for an image file at specified offset
-loop_offset_setup() {
-  local filename=$1
-  local offset=$2  # 512-byte sectors
-
-  LOOP_DEV=$(sudo losetup -f)
-  if [ -z "$LOOP_DEV" ]
-  then
-    echo "No free loop device. Free up a loop device or reboot. Exiting."
-    exit 1
-  fi
-
-  sudo losetup -o $(($offset * 512)) ${LOOP_DEV} ${filename}
-}
-
-loop_offset_cleanup() {
-  sudo losetup -d ${LOOP_DEV} || /bin/true
-}
-
-mount_on_loop_dev() {
-  TMPMNT=$(mktemp -d)
-  sudo mount ${LOOP_DEV} ${TMPMNT}
-}
-
-# Unmount loop-mounted device.
-umount_from_loop_dev() {
-  mount | grep -q " on ${TMPMNT} " && sudo umount ${TMPMNT}
-}
-
-# Undo both mount and loop.
-my_cleanup() {
-  umount_from_loop_dev
-  loop_offset_cleanup
-}
-
-# Modifies an existing image for recovery use
-update_recovery_packages() {
-  local image_name=$1
-
-  echo "Modifying image ${image_name} for recovery use"
-
-  locate_gpt  # set $GPT env var
-  loop_offset_setup ${image_name} $(partoffset "${image_name}" 1)
-  trap loop_offset_cleanup EXIT
-  mount_on_loop_dev "readwrite"
-  trap my_cleanup EXIT
-  sudo touch ${TMPMNT}/.recovery
-  umount_from_loop_dev
-  trap loop_offset_cleanup EXIT
-  loop_offset_cleanup
-  trap - EXIT
-}
-
-# Main
-
-DST_PATH="${IMAGE_DIR}/${FLAGS_output}"
-echo "Making a copy of original image ${FLAGS_image}"
-cp $FLAGS_image $DST_PATH
-update_recovery_packages $DST_PATH
-
-echo "Recovery image created at ${DST_PATH}"