43 lines
936 B
Python
43 lines
936 B
Python
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#!/usr/bin/env python3
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import subprocess
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from sys import stderr as STDERR
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import typing
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def eprint(errmsg):
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print(errmsg, file=STDERR)
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def die(errmsg, stat: int = 1):
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"""Prints message and exits Python with a status of stat."""
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eprint(errmsg)
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exit(stat)
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def runcmd(args):
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"""
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Run a given program/shell command and return its output.
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Error Handling
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==============
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If the spawned proccess returns a nonzero exit status, it will print the
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program's ``STDERR`` to the running Python iterpreter's ``STDERR``.
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"""
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proc = subprocess.Popen(
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args,
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shell=True,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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)
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try:
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if proc.wait() == 1:
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print(proc.stdout.read().decode())
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eprint(proc.stderr.read().decode())
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return proc.stdout.read()
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except KeyboardInterrupt:
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proc.terminate()
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return b""
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