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cli_parser.py
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cli_parser.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Parse CLI options.
Using argparse to parse options.
"""
import argparse
VERSION = "v1.0.0 (2017-06-16)"
options = {}
def parse_options():
"""
Parse all command line options and arguments and return them as a dictionary.
"""
parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter)
group = parser.add_mutually_exclusive_group()
group.add_argument("-v", "--verbose", dest="verbose", default="False",
help="increase output verbosity", action="store_true")
group.add_argument("-s", "--silent", dest="silent", default="False",
help="decrease output verbosity", action="store_true")
parser.add_argument("-V", "--version", action="version", version=VERSION)
subparsers = parser.add_subparsers(
title="commands (positional arguments)",
help='Available commands',
dest="command")
subparsers.add_parser("command1", help="information on command1")
subparsers.add_parser("command2", help="information on command2")
args, unknownargs = parser.parse_known_args()
options["known_args"] = vars(args)
options["unknown_args"] = unknownargs
return options