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Commit 4d532878 authored by Moul's avatar Moul

[enh] #235: Add CLI mutually exclusive option class

- https://gist.github.com/jacobtolar/fb80d5552a9a9dfc32b12a829fa21c0c
parent 5742cea8
Copyright 2016-2019 Maël Azimi <m.a@moul.re>
Silkaj is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Silkaj is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with Silkaj. If not, see <https://www.gnu.org/licenses/>.
from click import Option, UsageError
class MutuallyExclusiveOption(Option):
def __init__(self, *args, **kwargs):
self.mutually_exclusive = set(kwargs.pop("mutually_exclusive", []))
help = kwargs.get("help", "")
if self.mutually_exclusive:
ex_str = ", ".join(self.mutually_exclusive)
kwargs["help"] = help + (
" NOTE: This argument is mutually exclusive with "
" arguments: [" + ex_str + "]."
super(MutuallyExclusiveOption, self).__init__(*args, **kwargs)
def handle_parse_result(self, ctx, opts, args):
if self.mutually_exclusive.intersection(opts) and self.name in opts:
raise UsageError(
"Usage: `{}` is mutually exclusive with "
"arguments `{}`.".format(self.name, ", ".join(self.mutually_exclusive))
return super(MutuallyExclusiveOption, self).handle_parse_result(ctx, opts, args)
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