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import shlex
import subprocess
import sys
from typing import Tuple
def execute_and_return(command_string: str) -> Tuple[str, str]:
def _decode(subprocess_err_out_tuple):
return tuple(
to_decode.decode("UTF-8").strip()
for to_decode in subprocess_err_out_tuple
)
def execute_and_return_decoded_std_streams(command_string):
return _decode(
subprocess.Popen(
shlex.split(command_string),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
).communicate()
)
std_out, std_err = execute_and_return_decoded_std_streams(command_string)
return std_out, std_err
def print_stderr(s: str) -> None:
print(s, file=sys.stderr)
def warn_of_missing_prerequisite(s: str) -> None:
print_stderr("WARNING, missing pre-requisite: " + s)
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