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a1a1ed830c
Enable sparse files for all dd and cp commands and replace some dd commands that are really better off being truncate commands. While in the neighborhood there were a number of useless sudo commands for things that just happen to be in sbin. Call them directly instead.
50 lines
1.4 KiB
Bash
50 lines
1.4 KiB
Bash
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Common library file to be sourced by build_image,
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# mod_image_for_test.sh, and mod_image_for_recovery.sh. This
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# file ensures that library source files needed by all the scripts
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# are included once, and also takes care of certain bookeeping tasks
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# common to all the scripts.
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# SCRIPT_ROOT must be set prior to sourcing this file
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. "${SCRIPT_ROOT}/common.sh" || exit 1
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# All scripts using this file must be run inside the chroot.
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restart_in_chroot_if_needed "$@"
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INSTALLER_ROOT=/usr/lib/installer
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. "${INSTALLER_ROOT}/chromeos-common.sh" || exit 1
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locate_gpt
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should_build_image() {
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# Fast pass back if we should build all incremental images.
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local image_name
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local image_to_build
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for image_name in "$@"; do
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for image_to_build in ${IMAGES_TO_BUILD}; do
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[ "${image_to_build}" = "${image_name}" ] && return 0
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done
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done
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return 1
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}
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# Utility function for creating a copy of an image prior to
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# modification from the BUILD_DIR:
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# $1: source filename
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# $2: destination filename
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copy_image() {
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local src="${BUILD_DIR}/$1"
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local dst="${BUILD_DIR}/$2"
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if should_build_image $1; then
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echo "Creating $2 from $1..."
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cp --sparse=always "${src}" "${dst}" || die "Cannot copy $1 to $2"
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else
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mv "${src}" "${dst}" || die "Cannot move $1 to $2"
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fi
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}
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