MooseX::Getopt::Meta::Attribute - Optional meta attribute for custom option names
package App; use Moose; with 'MooseX::Getopt'; has 'data' => ( metaclass => 'Getopt', is => 'ro', isa => 'Str', default => 'file.dat', # tells MooseX::Getopt to use --somedata as the # command line flag instead of the normal # autogenerated one (--data) cmd_flag => 'somedata', # tells MooseX::Getopt to also allow --moosedata, # -m, and -d as aliases for this same option on # the commandline. cmd_aliases => [qw/ moosedata m d /], # Or, you can use a plain scalar for a single alias: cmd_aliases => 'm', );
This is a custom attribute metaclass which can be used to specify a the specific command line flag to use instead of the default one which MooseX::Getopt will create for you.
This is certainly not the prettiest way to go about this, but for now it works for those who might need such a feature.
You should rarely need to explicitly set the attribute metaclass. It is much preferred to simply provide a trait (a role applied to the attribute metaclass), which allows other code to further modify the attribute by applying additional roles.
Therefore, you should first try to do this:
has 'foo' => (traits => ['Getopt'], cmd_flag => 'f');
This now takes advantage of the Moose 0.19 feature to support custom attribute metaclass aliases. This means you can also use this as the Getopt alias, like so:
has 'foo' => (metaclass => 'Getopt', cmd_flag => 'f');
Changes the command-line flag to be this value, instead of the default, which is the same as the attribute name.
Adds more aliases for this command-line flag, useful for short options and such.
Stevan Little <firstname.lastname@example.org>
This software is copyright (c) 2007 by Infinity Interactive, Inc.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.