# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.

import logging
import os
import shlex
import subprocess

_log = logging.getLogger("util.run")


def run(
    *args,
    cwd=None,
    input=None,
    capture_stdout=False,
    capture_stderr=False,
    shell=False,
    env=None,
    check=True,
    quiet=False,
):
    """Runs a subprocess.

    Args:
        *args: The subprocess arguments.
        cwd: The working directory. If None, specifies the current directory.
        input: The optional input byte sequence.
        capture_stdout: Whether to capture stdout.
        capture_stderr: Whether to capture stderr.
        shell: Whether to run using the shell.
        env: The environment variables as a dict. If None, inherits the current
            environment.
        check: Whether to raise an error if the return code is not zero.
        quiet: If true, do not print output from the subprocess.

    Returns:
        A subprocess.CompletedProcess instance.
    """
    cmd = [*args]

    _log.info(
        "Running subprocess in '{0}'\n  {1}".format(cwd or os.getcwd(), " ".join([shlex.quote(arg) for arg in cmd]))
    )

    def output(is_stream_captured):
        return subprocess.PIPE if is_stream_captured else (subprocess.DEVNULL if quiet else None)

    completed_process = subprocess.run(
        cmd,
        cwd=cwd,
        check=check,
        input=input,
        stdout=output(capture_stdout),
        stderr=output(capture_stderr),
        env=env,
        shell=shell,
    )

    _log.debug("Subprocess completed. Return code: {}".format(completed_process.returncode))

    return completed_process
