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73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
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# -*-:python; coding:utf-8; -*-
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# author: Louis Abel <label@rockylinux.org>
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"""
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Provides subprocess utilities
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"""
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import os
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import sys
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import subprocess
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from pv2.util import error as err
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# todo: remove python 3.6 checks. nodes won't be on el8.
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def run_proc_foreground(command: list):
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"""
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Takes in the command in the form of a list and runs it via subprocess.
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Everything should be in the foreground. The return is just for the exit
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code.
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"""
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try:
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processor = subprocess.run(args=command, check=False)
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except Exception as exc:
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raise err.GenericError(f'There was an error with your command: {exc}')
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return processor
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def run_proc_no_output(command: list):
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"""
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Output will be stored in stdout and stderr as needed.
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"""
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try:
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if sys.version_info <= (3, 6):
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processor = subprocess.run(args=command, check=False,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True)
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else:
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processor = subprocess.run(args=command, check=False, capture_output=True,
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text=True)
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except Exception as exc:
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raise err.GenericError(f'There was an error with your command: {exc}')
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return processor
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def popen_proc_no_output(command: list):
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"""
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This opens a process, but is non-blocking.
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"""
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try:
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if sys.version_info <= (3, 6):
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processor = subprocess.Popen(args=command, stdout=subprocess.PIPE,
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universal_newlines=True)
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else:
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# pylint: disable=consider-using-with
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processor = subprocess.Popen(args=command, stdout=subprocess.PIPE,
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text=True)
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except Exception as exc:
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raise err.GenericError(f'There was an error with your command: {exc}')
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return processor
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def run_check_call(command: list) -> int:
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"""
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Runs subprocess check_call and returns an integer.
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"""
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env = os.environ
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try:
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subprocess.check_call(command, env=env)
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except subprocess.CalledProcessError as exc:
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sys.stderr.write(f'Run failed: {exc}\n')
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return 1
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return 0
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