77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
"""
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Copyright 2017 Oliver Smith
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This file is part of pmbootstrap.
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pmbootstrap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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pmbootstrap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
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"""
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import subprocess
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import logging
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def core(args, cmd, log_message, log, return_stdout, check=True):
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logging.debug(log_message)
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"""
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Run the command and write the output to the log.
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:param check: raise an exception, when the command fails
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"""
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try:
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ret = None
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if log:
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if return_stdout:
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ret = subprocess.check_output(cmd).decode("utf-8")
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args.logfd.write(ret)
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else:
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subprocess.check_call(cmd, stdout=args.logfd,
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stderr=args.logfd)
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args.logfd.flush()
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else:
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logging.debug("*** output passed to pmbootstrap stdout, not" +
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" to this log ***")
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subprocess.check_call(cmd)
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except subprocess.CalledProcessError as exc:
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if check:
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if log:
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logging.debug("^" * 70)
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logging.info("NOTE: The failed command's output is above"
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" the ^^^ line in the logfile: " + args.log)
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raise RuntimeError("Command failed: " + log_message) from exc
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else:
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pass
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return ret
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def user(args, cmd, log=True, working_dir=None, return_stdout=False,
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check=True):
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"""
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:param working_dir: defaults to args.work
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"""
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if not working_dir:
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working_dir = args.work
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# TODO: maintain and check against a whitelist
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return core(args, cmd, "% " + " ".join(cmd), log, return_stdout, check)
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def root(args, cmd, log=True, working_dir=None, return_stdout=False,
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check=True):
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"""
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:param working_dir: defaults to args.work
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"""
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cmd = ["sudo"] + cmd
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return user(args, cmd, log, working_dir, return_stdout, check)
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