blob: 91ff7f181f731c36aec6305ed2f5875170892ee2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
def arg(*args, **kwargs):
"""Decorator for CLI args.
Example:
>>> @arg("name", help="Name of the new entity")
... def entity_create(args):
... pass
"""
def _decorator(func):
add_arg(func, *args, **kwargs)
return func
return _decorator
def add_arg(func, *args, **kwargs):
"""Bind CLI arguments to a shell.py `do_foo` function."""
if not hasattr(func, 'arguments'):
func.arguments = []
# NOTE(sirp): avoid dups that can occur when the module is shared across
# tests.
if (args, kwargs) not in func.arguments:
# Because of the semantics of decorator composition if we just append
# to the options list positional options will appear to be backwards.
func.arguments.insert(0, (args, kwargs))
|
