NAME

MooseX::SimpleConfig - A Moose role for setting attributes from a simple configuration file

VERSION

version 0.11

SYNOPSIS

  ## A YAML configfile named /etc/my_app.yaml:
  foo: bar
  baz: 123

  ## In your class
  package My::App;
  use Moose;

  with 'MooseX::SimpleConfig';

  has 'foo' => (is => 'ro', isa => 'Str', required => 1);
  has 'baz'  => (is => 'rw', isa => 'Int', required => 1);

  # ... rest of the class here

  ## in your script
  #!/usr/bin/perl

  use My::App;

  my $app = My::App->new_with_config(configfile => '/etc/my_app.yaml');
  # ... rest of the script here

  ####################
  ###### combined with MooseX::Getopt:

  ## In your class
  package My::App;
  use Moose;

  with 'MooseX::SimpleConfig';
  with 'MooseX::Getopt';

  has 'foo' => (is => 'ro', isa => 'Str', required => 1);
  has 'baz'  => (is => 'rw', isa => 'Int', required => 1);

  # ... rest of the class here

  ## in your script
  #!/usr/bin/perl

  use My::App;

  my $app = My::App->new_with_options();
  # ... rest of the script here

  ## on the command line
  % perl my_app_script.pl -configfile /etc/my_app.yaml -otherthing 123

DESCRIPTION

This role loads simple files to set object attributes. It is based on the abstract role MooseX::ConfigFromFile, and uses Config::Any to load your configuration file. Config::Any will in turn support any of a variety of different config formats, detected by the file extension. See Config::Any for more details about supported formats.

To pass additional arguments to Config::Any you must provide a "config_any_args()" method, for example:

  sub config_any_args {
    return {
      driver_args => { General => { '-InterPolateVars' => 1 } }
    };
  }

Like all MooseX::ConfigFromFile -derived file loaders, this module is automatically supported by the MooseX::Getopt role as well, which allows specifying "-configfile" on the command line.

ATTRIBUTES

configfile

Provided by the base role MooseX::ConfigFromFile. You can provide a default configuration file pathname like so:

  has '+configfile' => ( default => '/etc/myapp.yaml' );

You can pass an array of filenames if you want, but as usual the array has to be wrapped in a sub ref.

  has '+configfile' => ( default => sub { [ '/etc/myapp.yaml', '/etc/myapp_local.yml' ] } );

Config files are trivially merged at the top level, with the right-hand files taking precedence.

CLASS METHODS

new_with_config

Provided by the base role MooseX::ConfigFromFile. Acts just like regular "new()", but also accepts an argument "configfile" to specify the file from which to load other attributes. Explicit arguments to "new_with_config" will override anything loaded from the file.

get_config_from_file

Called internally by either "new_with_config" or MooseX::Getopt's "new_with_options". Invokes Config::Any to parse "configfile".

AUTHOR

Brandon L. Black <blblack@gmail.com>

COPYRIGHT AND LICENSE

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

CONTRIBUTORS

Karen Etheridge <ether@cpan.org>
Tomas Doran <bobtfish@bobtfish.net>
Brandon L Black <blblack@gmail.com>
Alexander Hartmaier <alex.hartmaier@gmail.com>
lestrrat <lestrrat+github@gmail.com>
Сергей Романов <sromanov@cpan.org>
Yuval Kogman <nothingmuch@woobling.org>
Zbigniew Lukasiak <zby@cpan.org>
Alex Howarth <alex.howarth@gmail.com>