1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#!/usr/bin/env python3
import shlex
import subprocess
from typing import List, Optional
def cmd_with_timeout(command: str, timeout_seconds: Optional[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")
|
