LoadableConfig is a tool you can use to load and parse configuration from YAML. It validates your declaration of the configuration against the provided file and gives you a singleton to access configuration.

Add this line to your application's Gemfile:

gem 'loadable_config'

And then execute:

$ bundle

Or install it yourself as:

$ gem install loadable_config

Subclass from LoadableConfig:

class MyConfig < LoadableConfig
  attribute :size, type: :integer
  attribute :name # implictly a string

  config_file 'config/my_config.yml'
end

You can then access the configuration through the instance of the class:

MyConfig.instance.size # => 3

If you store configuration keyed by environment, or want to set a project root for all subclasses, you can set global options:

LoadableConfig.configure! do |config|
  config.config_path_prefix = Rails.root
  config.environment_key    = Rails.env
end

Attributes are validated according to JSON Schema

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/iknow/loadable_config.