diff options
Diffstat (limited to 'rtemsspec/util.py')
| -rw-r--r-- | rtemsspec/util.py | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/rtemsspec/util.py b/rtemsspec/util.py index d2403cd3..bf07b5fa 100644 --- a/rtemsspec/util.py +++ b/rtemsspec/util.py @@ -1,7 +1,7 @@ # SPDX-License-Identifier: BSD-2-Clause """ This module provides utility functions. """ -# Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) +# Copyright (C) 2020, 2021 embedded brains GmbH (http://www.embedded-brains.de) # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions @@ -24,9 +24,11 @@ # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. +import logging import os import shutil -from typing import Any, List +import subprocess +from typing import Any, List, Optional import yaml @@ -63,3 +65,34 @@ def load_config(config_filename: str) -> Any: IncludeLoader.add_constructor("!include", IncludeLoader.include) with open(config_filename, "r") as config_file: return yaml.load(config_file.read(), Loader=IncludeLoader) + + +def run_command(args: List[str], + cwd: str = ".", + stdout: Optional[List[str]] = None, + env=None) -> int: + """ + Runs the command in a subprocess in the working directory and environment. + + Optionally, the standard output of the subprocess is returned. Returns the + exit status of the subprocess. + """ + logging.info("run in '%s': %s", cwd, " ".join(f"'{arg}'" for arg in args)) + task = subprocess.Popen(args, + stdin=subprocess.PIPE, + stdout=subprocess.PIPE, + stderr=subprocess.STDOUT, + cwd=cwd, + env=env) + assert task.stdout is not None + while True: + raw_line = task.stdout.readline() + if raw_line: + line = raw_line.decode("utf-8").rstrip() + if stdout is None: + logging.debug("%s", line) + else: + stdout.append(line) + elif task.poll() is not None: + break + return task.wait() |