NAME

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

DESCRIPTION

       This role adds a initializing sub around BUILDARGS and puts all what could read from
       config files into the hash which will be used to construct the final object.

       While it does that, it internally calls it's own _build_* methods (_build_config_prefix,
       _build_config_files and _build_loaded_config) unless the appropriate attributes are
       already in $params.

ATTRIBUTES

       This role uses following attributes which might be suitable customized by overloading the
       appropriate builder or pass defaults in construction arguments.

       Be sure to read "ATTRIBUTES" in MooX::File::ConfigDir, especially "config_identifier" in
       MooX::File::ConfigDir to understand how the "config_dirs" are build.

       When you miss a directory - see "plug_dir_source" in File::ConfigDir and
       File::ConfigDir::Plack.

   config_prefix
       This attribute is a string and defaults to FindBin's $Script. It's interpreted as the
       basename of the config file name to use.

   config_prefixes
       This attribute is an array of strings and defaults to "<[ config_prefix ]">.

   config_prefix_map_separator
       This attribute is a string and contains the character which is used building
       config_prefix_map from config_prefixes.

   config_prefix_map
       This attribute is an array of strings containing all config-prefixes joint together "($0,
       $0.$1, $0.$1.$2, ...)" using config_prefix_map_separator.

   config_files_pattern
       This attribute contains a cross-product of config_prefix_map and config_extensions. Both
       are concatenated using the shell wildcard '*'.

   config_dirs
       This attribute is consumed from MooX::File::ConfigDir.  It might not be smart to override
       - but possible. Use with caution.

   config_extensions
       This attribute defaults to list of extensions from Config::Any.

   config_files
       This attribute contains the list of existing files in config_dirs matching config_prefix .
       config_extensions.  Search is operated by File::Find::Rule.

   raw_loaded_config
       This attribute contains the config as loaded from file system in an array of "filename =>
       \%content".  The result from Config::Any is sorted by filename ('-' < '.').

   loaded_config
       This attribute contains the config loaded and transformed while constructing the instance.
       Construction is done from raw_loaded_config, ignoring the filename part.

       For classes set up using

         use MooX::ConfigFromFile config_singleton = 1;

       this attribute is cached from the very first construction and fed by overwritten builder.
       The content of this attribute is passed to lower BUILDARGS.

AUTHOR

       Jens Rehsack, "<rehsack at cpan.org>"

ACKNOWLEDGEMENTS

       Toby Inkster suggested to rely on BUILDARGS instead of intercepting object creation with
       nasty hacks. He also taught me a bit more how Moo(se) works.

LICENSE AND COPYRIGHT

       Copyright 2013-2015 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.