perl-MooseX-Attribute-ENV

This is a Moose attribute trait that you use when you want the default
value for an attribute to be populated from the %ENV hash. So, for example
if you have set the environment variable USERNAME = 'John' you can do:
package MyApp::MyClass;

use Moose;
use MooseX::Attribute::ENV;

has 'username' => (is=>'ro', traits=>['ENV']);

package main;

my $myclass = MyApp::MyClass->new();

print $myclass->username; # STDOUT => 'John';


This is basically similar functionality to something like:
has 'attr' => (
	is=>'ro',
	default=> sub {
		$ENV{uc 'attr'};
	},
);


but this module has a few other features that offer merit, as well as being
a simple enough attribute trait that I hope it can serve as a learning
tool.
If the named key isn't found in %ENV, then defaults will execute as normal.

          

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License: Artistic-1.0 or GPL-1.0+
URL: http://search.cpan.org/dist/MooseX-Attribute-ENV/