|  | # Copyright (c) 2022 Project CHIP Authors | 
|  | # | 
|  | # Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | # you may not use this file except in compliance with the License. | 
|  | # You may obtain a copy of the License at | 
|  | # | 
|  | #   http://www.apache.org/licenses/LICENSE-2.0 | 
|  | # | 
|  | # Unless required by applicable law or agreed to in writing, software | 
|  | # distributed under the License is distributed on an "AS IS" BASIS, | 
|  | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | # See the License for the specific language governing permissions and | 
|  | # limitations under the License. | 
|  |  | 
|  | import logging | 
|  | import os | 
|  | import shlex | 
|  | import subprocess | 
|  |  | 
|  |  | 
|  | class ShellRunner: | 
|  | def run(self, cmd, cwd=None): | 
|  | logging.debug(f"Executing {cmd}") | 
|  | subprocess.check_call(cmd, cwd=cwd) | 
|  |  | 
|  | def ensure_directory_exists(self, dir): | 
|  | os.makedirs(dir, exist_ok=True) | 
|  |  | 
|  |  | 
|  | class DryRunner: | 
|  | def run(self, cmd, cwd=None): | 
|  | if cwd: | 
|  | logging.info(f"DRY-RUN: {shlex.join(cmd)} in {cwd}") | 
|  | else: | 
|  | logging.info(f"DRY-RUN: {shlex.join(cmd)}") | 
|  |  | 
|  | def ensure_directory_exists(self, dir): | 
|  | logging.info(f"DRY-RUN: mkdir {dir}") |