import platform
import subprocess
def subprocess_kwargs() -> dict:
"""
Returns a dictionary of keyword arguments for subprocess calls, adding platform-specific
flags that we want to use consistently.
"""
kwargs = {}
if platform.system() == "Windows":
kwargs["creationflags"] = subprocess.CREATE_NO_WINDOW # type: ignore
return kwargs
def quote_arg(arg: str) -> str:
"""
Adds quotes around an argument if it contains spaces.
"""
if " " not in arg:
return arg
return f'"{arg}"'