ordigi/elodie/arguments.py

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"""
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Command line argument parsing for helper scripts.
"""
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import getopt
import sys
from re import sub
def parse(argv, options, long_options, usage):
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"""Parse command line arguments.
:param list(str) argv: Arguments passed to the program.
:param str options: String of characters for allowed short options.
:param list(str) long_options: List of strings of allowed long options.
:param str usage: Help text, to print in the case of an error or when
the user asks for it.
:returns: dict
"""
try:
opts, args = getopt.getopt(argv, options, long_options)
except getopt.GetoptError:
print usage
sys.exit(2)
return_arguments = {}
for opt, arg in opts:
if opt == '-h':
print usage
sys.exit()
else:
return_arguments[sub('^-+', '', opt)] = arg
return return_arguments