| #!/bin/bash |
| # Copyright 2019 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This script accepts two parameters: a file name and a string. |
| # |
| # If the file does not exist, or does not contain the passed in string wrapped |
| # in '/*... */, the file is written with the wrapped passed in string. |
| |
| h_file="$1" |
| current_set="/* $2 */" |
| |
| if [[ -f "${h_file}" ]]; then |
| old_set="$(cat "${h_file}")" |
| if [[ "${current_set}" == "${old_set}" ]]; then |
| exit 0 |
| fi |
| else |
| dest_dir="$(dirname "${h_file}")" |
| [[ -d "${dest_dir}" ]] || mkdir -p "${dest_dir}" |
| fi |
| printf "%s" "${current_set}" > "${h_file}" |
