/ 
Footprintless-1.19
River stage one • 3 direct dependents • 3 total dependents
/ Footprintless::Plugin

NAME

Footprintless::Plugin - The base class for footprintless plugins

VERSION

version 1.19

DESCRIPTION

This class serves as a base class for plugins. It defines the mandatory interface that a plugin must implement. Plugins add methods to the factory itself at runtime. For example:

package Foo::Plugin;

use parent qw(Footprintless::Plugin);

sub foo {
    require Foo;
    return Foo->new();
}

sub factory_methods {
    my ($self) = @_;
    return {
        foo => sub {
            return $self->foo(@_);
        }
    }
}

package Foo;

sub new() {
    return bless({}, shift);
}

sub bar {
    print("BAR");
}

Then they can be registered with a factory instance:

$factory->register_plugin(Foo::Plugin->new());

Or, they can be registered via configuration in the footprintless.plugins entity:

# $FPL_HOME/config/footprintless.pm
return {
    plugins => [
        'Foo::Plugin',
        'Bar::Plugin'
    ],
    'Foo::Plugin' => {
        # optional config
    }
    'Bar::Plugin' => {
        # optional config
    }
};

Then you can use the methods directly on the footprintless instance:

my $footprintless = Footprintless->new();
my $foo = $footprintless->foo();

If a key with the same name as the plugin is present in the footprintless entity, then the entire hashref will be set as $self-{config}> on the plugin instance during construction. You can then override the _init() method to do configuration based initialization.

If you want to add commands, just add a module under the package returned by command_packages (defaults to ref($self) . '::Command'):

package Foo::Plugin::Command::foo
use Footprintless::App -command;

sub execute {
    my ($self, $opts, $args) = @_;

    my $foo = $self->app()->footprintless()->foo();

    $foo->bar();
}

Then your command will be availble from the fpl command:

$> fpl foo
BAR

CONSTRUCTORS

new()

Creates a new plugin.

METHODS

command_packages()

Returns a list of packages to scan for commands.

factory_methods()

Returns a hash full of factory methods. The key will be used as the method name that gets registered with the factory. Its value must be a reference to a sub.

AUTHOR

Lucas Theisen <lucastheisen@pastdev.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 by Lucas Theisen.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

SEE ALSO

Please see those modules/websites for more information related to this module.