mirror of
https://github.com/flatcar/scripts.git
synced 2025-08-08 05:26:58 +02:00
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.
|
|
# Use of this source code is governed by a BSD-style license that can be
|
|
# found in the LICENSE file.
|
|
|
|
# Common library file to be sourced by build_image,
|
|
# mod_image_for_test.sh, and mod_image_for_recovery.sh. This
|
|
# file ensures that library source files needed by all the scripts
|
|
# are included once, and also takes care of certain bookeeping tasks
|
|
# common to all the scripts.
|
|
|
|
# SCRIPT_ROOT must be set prior to sourcing this file
|
|
. "${SCRIPT_ROOT}/common.sh" || exit 1
|
|
|
|
# All scripts using this file must be run inside the chroot.
|
|
restart_in_chroot_if_needed "$@"
|
|
|
|
INSTALLER_ROOT=/usr/lib/installer
|
|
. "${INSTALLER_ROOT}/chromeos-common.sh" || exit 1
|
|
|
|
locate_gpt
|
|
|
|
should_build_image() {
|
|
# Fast pass back if we should build all incremental images.
|
|
local image_name
|
|
local image_to_build
|
|
|
|
for image_name in "$@"; do
|
|
for image_to_build in ${IMAGES_TO_BUILD}; do
|
|
[ "${image_to_build}" = "${image_name}" ] && return 0
|
|
done
|
|
done
|
|
|
|
return 1
|
|
}
|
|
|
|
# Utility function for creating a copy of an image prior to
|
|
# modification from the BUILD_DIR:
|
|
# $1: source filename
|
|
# $2: destination filename
|
|
copy_image() {
|
|
local src="${BUILD_DIR}/$1"
|
|
local dst="${BUILD_DIR}/$2"
|
|
if should_build_image $1; then
|
|
echo "Creating $2 from $1..."
|
|
cp --sparse=always "${src}" "${dst}" || die "Cannot copy $1 to $2"
|
|
else
|
|
mv "${src}" "${dst}" || die "Cannot move $1 to $2"
|
|
fi
|
|
}
|