Minimalistic settings for your Rails application

• super-simple
• loads YAML+ERB files
• reloads every time on Object.send(:remove_const, :Settings)
• uses Hashie::Mash

Add gem 'confie' in your Gemfile

Accessing settings keys

# config/settings.yml
my:
  config_key1: "value"
  config_key2: [1, 2, 3]
other_key: 2

Settings # #<Hashie::Mash my=#<Hashie::Mash config_key1="...>>
Settings.my.config_key1 # "value"
Settings.my.config_key2 # [1, 2, 3]
Settings.other_key # 2
# change yml file
Object.send(:remove_const, :Settings)
Settings.other_key # 3

Every next file overrides values from previous using deep merge

• #{Rails.root}/settings.yml
• #{Rails.root}/settings.local.yml
• #{Rails.root}/settings/#{Rails.env}.yml
• #{Rails.root}/settings/#{Rails.env}.local.yml

To redefine settings constant, e.g. MyConfig, create my_config.rb in your autoloaded directory

# my_config.rb
MyConfig = Confie.load!

# then use it
MyConfig.my_key

# config/settings.yml
secret_key: "abcdef"

module Twitter; end
Confie.extend!(Twitter)
Twitter.settings.secret_key # "abcdef"

# in config/initializers/
ActiveSupport::Dependencies.explicitly_unloadable_constants << 'Settings'