-
-
Save devholland/5fe8e1f4c34a0c2c4bf464304425a138 to your computer and use it in GitHub Desktop.
Python Click Mutually Exclusive Options
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| from click import command, option, 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( | |
| "Illegal usage: `{}` is mutually exclusive with " | |
| "arguments `{}`.".format( | |
| self.name, | |
| ', '.join(self.mutually_exclusive) | |
| ) | |
| ) | |
| return super(MutuallyExclusiveOption, self).handle_parse_result( | |
| ctx, | |
| opts, | |
| args | |
| ) | |
| @command(help="Run the command.") | |
| @option('--jar-file', cls=MutuallyExclusiveOption, | |
| help="The jar file the topology lives in.", | |
| mutually_exclusive=["other_arg"]) | |
| @option('--other-arg', | |
| cls=MutuallyExclusiveOption, | |
| help="Another argument.", | |
| mutually_exclusive=["jar_file"]) | |
| def cli(jar_file, other_arg): | |
| print "Running cli." | |
| print "jar-file: {}".format(jar_file) | |
| print "other-arg: {}".format(other_arg) | |
| if __name__ == '__main__': | |
| cli() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment