NAME

MooX::ConfigFromFile - Moo eXtension for initializing objects from config file

SYNOPSIS

package Role::Action;

use Moo::Role;

has operator => ( is => "ro" );

package Action;

use Moo;
use MooX::ConfigFromFile; # imports the MooX::ConfigFromFile::Role

with "Role::Action";

sub operate { return say shift->operator; }

package OtherAction;

use Moo;

with "Role::Action", "MooX::ConfigFromFile::Role";

sub operate { return warn shift->operator; }

package QuiteOtherOne;

use Moo;

# consumes the MooX::ConfigFromFile::Role but load config only once
use MooX::ConfigFromFile config_singleton => 1;

with "Role::Action";

sub _build_config_prefix { "die" }

sub operate { return die shift->operator; }

package main;

my $action = Action->new(); # tries to find a config file in config_dirs and loads it
my $other = OtherAction->new( config_prefix => "warn" ); # use another config file
my $quite_o = QuiteOtherOne->new(); # quite another way to have an individual config file

DESCRIPTION

This module is intended to easy load initialization values for attributes on object construction from an appropriate config file. The building is done in MooX::ConfigFromFile::Role - using MooX::ConfigFromFile ensures the role is applied.

For easier usage, with 0.004, several options can be passed via use resulting in default initializers for appropriate role attributes:

• config_prefix

  Default for "config_prefix" in MooX::ConfigFromFile::Role.

• config_prefixes

  Default for "config_prefixes" in MooX::ConfigFromFile::Role. Ensure when use this flag together with MooX::Cmd to load MooX::ConfigFromFile before MooX::Cmd.

• config_prefix_map_separator

  Default for "config_prefix_map_separator" in MooX::ConfigFromFile::Role.

    package Foo;
  
    # apply role MooX::ConfigFromFile::Role and override default for
    # attribute config_prefix_map_separator
    use MooX::ConfigFromFile config_prefix_map_separator => "~";
  
    ...
  

• config_extensions

  Default for "config_extensions" in MooX::ConfigFromFile::Role.

• config_dirs

  Default for "config_dirs" in MooX::ConfigFromFile::Role. Same warning regarding modifying this attribute applies here: Possible, but use with caution!

    package Foo;
  
    use MooX::ConfigFromFile config_dirs => [qw(/opt/foo/etc /home/alfred/area/foo/etc)];
  
    ...
  

• config_files

  Default for "config_files" in MooX::ConfigFromFile::Role.

  Reasonable when you want exactly one config file in development mode. For production code it is highly recommended to override the builder.

• config_singleton

  Flag adding a wrapper around the builder of "loaded_config" in MooX::ConfigFromFile::Role to ensure a config is loaded only once per class. The per class restriction results from applicable modifiers per class (and singletons are per class).

• config_identifier

  Default for "config_identifier" in MooX::File::ConfigDir.

    package Foo;
  
    # apply role MooX::ConfigFromFile::Role and override default for
    # attribute config_identifier - means to look e.g. in /etc/foo/
    use MooX::ConfigFromFile config_identifier => "foo";
  
    ...
  

• config_hashmergeloaded

  Consumes role MooX::ConfigFromFile::Role::HashMergeLoaded directly after MooX::ConfigFromFile::Role has been consumed.

AUTHOR

Jens Rehsack, <rehsack at cpan.org>

BUGS

Please report any bugs or feature requests to bug-moox-configfromfile at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooX-ConfigFromFile. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc MooX::ConfigFromFile

You can also look for information at:

• RT: CPAN's request tracker (report bugs here)

  http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooX-ConfigFromFile

• AnnoCPAN: Annotated CPAN documentation

  http://annocpan.org/dist/MooX-ConfigFromFile

• CPAN Ratings

  http://cpanratings.perl.org/d/MooX-ConfigFromFile

• Search CPAN

  http://search.cpan.org/dist/MooX-ConfigFromFile/

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

Copyright 2013-2018 Jens Rehsack.

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.