def parse_args(args):
"""Parse arguments and return them
"""
parser = argparse.ArgumentParser(
description='fuel-upgrade is an upgrade system for fuel-master node')
parser.add_argument(
'systems', choices=SUPPORTED_SYSTEMS.keys(), nargs='+',
help='systems to upgrade')
parser.add_argument(
'--src', required=True, help='path to update file')
parser.add_argument(
'--no-checker', action='store_true',
help='do not check before upgrade')
parser.add_argument(
'--no-rollback', action='store_true',
help='do not rollback in case of errors')
parser.add_argument(
'--password', help="admin user password")
rv = parser.parse_args(args)
# check input systems for compatibility
for uncompatible_systems in UNCOMPATIBLE_SYSTEMS:
if all(u_system in rv.systems for u_system in uncompatible_systems):
parser.error(
'the following systems are incompatible and can not be'
'used at the same time: "{0}"'.format(
', '.join(uncompatible_systems)
)
)
# check input systems have no duplicates
if len(rv.systems) != len(set(rv.systems)):
parser.error(
'the following systems are listed more than one times: "{0}"'
.format(', '.join(sorted(utils.get_non_unique(rv.systems))))
)
return rv
def test_empty_if_empty_input(self):
self.assertEqual([], list(utils.get_non_unique([])))
def test_empty_if_no_duplicates(self):
self.assertEqual([], list(utils.get_non_unique(six.moves.range(3))))
def test_get_duplicates(self):
self.assertItemsEqual([2, 3], utils.get_non_unique([2, 2, 2, 3, 3, 1]))
