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import binascii
import shlex
import subprocess
def get_command_output(command):
try:
return subprocess.check_output(
command, shell=True, universal_newlines=True
).rstrip()
except subprocess.CalledProcessError as e:
return e.output
def bitcast_to_string(b: bytes) -> str:
"""
Take a bytes object and return a string. The returned string contains the
exact same bytes as the input object. (latin1 <-> unicode transformation is
an identity operation for the first 256 code points).
"""
return b.decode("latin1")
def bitcast_to_bytes(s: str) -> bytes:
"""
Take a string and return a bytes object. The returned object contains the
exact same bytes as the input string. (latin1 <-> unicode transformation isi
an identity operation for the first 256 code points).
"""
return s.encode("latin1")
def unhexlify(hexstr):
"""Hex-decode a string. The result is always a string."""
return bitcast_to_string(binascii.unhexlify(hexstr))
def hexlify(data):
"""Hex-encode string data. The result if always a string."""
return bitcast_to_string(binascii.hexlify(bitcast_to_bytes(data)))
# TODO: Replace this with `shlex.join` when minimum Python version is >= 3.8
def join_for_shell(split_command):
return " ".join([shlex.quote(part) for part in split_command])
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