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#!/usr/bin/env python3
import shlex
import subprocess
from typing import List
def cmd_with_timeout(command: str, timeout_seconds: float) -> int:
return subprocess.check_call(
["/bin/bash", "-c", command], timeout=timeout_seconds
)
def cmd(command: str) -> str:
"""Run a command with everything encased in a string and return
the output text as a string. Raises subprocess.CalledProcessError.
"""
ret = subprocess.run(
command, shell=True, capture_output=True, check=True
).stdout
return ret.decode("utf-8")
def run_silently(command: str) -> None:
"""Run a command silently but raise subprocess.CalledProcessError if
it fails."""
subprocess.run(
command, shell=True, stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
capture_output=False, check=True
)
def cmd_in_background(command: str, *, silent: bool = False) -> subprocess.Popen:
args = shlex.split(command)
if silent:
return subprocess.Popen(args,
stdin=subprocess.DEVNULL,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL)
else:
return subprocess.Popen(args,
stdin=subprocess.DEVNULL)
def cmd_list(command: List[str]) -> str:
"""Run a command with args encapsulated in a list and return the
output text as a string. Raises subprocess.CalledProcessError.
"""
ret = subprocess.run(command, capture_output=True, check=True).stdout
return ret.decode("utf-8")
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