levabd/stack-updater

# coding=utf-8

from .. import logger


class ProcessWrapper(object):
    """Wraps the subprocess popen method and provides logging."""

    def __init__(self):
        pass

    @staticmethod
    def call(*popenargs, **kwargs):
        """Run command with arguments. Wait for command to complete. Sends
        output to logging module. The arguments are the same as for the Popen
        constructor."""

        from subprocess import Popen, PIPE

        kwargs['stdout'] = PIPE
        kwargs['stderr'] = PIPE

        p = Popen(*popenargs, **kwargs)
        stdout, stderr = p.communicate()

        if stdout:
            for line in stdout.strip().split("\n"):
                logger.info(line)

        if stderr:
            for line in stderr.strip().split("\n"):
                logger.error(line)

        return p.returncode