Source code for cmtklib.process

# Copyright (C) 2009-2022, Ecole Polytechnique Federale de Lausanne (EPFL) and
# Hospital Center and University of Lausanne (UNIL-CHUV), Switzerland, and CMP3 contributors
# All rights reserved.
#  This software is distributed under the open-source license Modified BSD.

"""Module providing a `run()` command using `subprocess`."""

import os
import subprocess

[docs]def run(command, env=None, cwd=None): """Function calls by `MainWindowHandler` to run datalad commands. It runs the command specified as input via ````. Parameters ---------- command : string String containing the command to be executed (required) env : os.environ Specify a custom os.environ cwd : os.path Specify a custom current working directory Examples -------- >>> cmd = 'datalad save' >>> run(cmd) # doctest: +SKIP """ merged_env = os.environ if (cwd is None) or (cwd == {}): cwd = os.getcwd() if env is not None: merged_env.update(env) process = command, capture_output=True, shell=True, env=merged_env, cwd=cwd, ) print(process.stdout.decode("utf8")) if process.returncode != 0: raise Exception( f'Non zero return code: {process.returncode}\n\n' f'\tStandard error:\n {process.stderr.decode("utf8")}')