Config

• GitHub - railsconfig/config: Easiest way to add multi-environment yaml settings to Rails, Sinatra, Pandrino and other Ruby projects.

Gemfile

gem 'config'

install

$ be rails g config:install
      create  config/initializers/config.rb
      create  config/settings.yml
      create  config/settings.local.yml
      create  config/settings
      create  config/settings/development.yml
      create  config/settings/production.yml
      create  config/settings/test.yml
      append  .gitignore

config/settings.yml

format: 'Hello, %s!'

config/settings/development.yml

world: 'development world'

config/settings/test.yml

world: 'test world'

config/settings/production.yml

world: 'production world'

$ bundle exec rails r 'puts Settings.format % Settings.world'
Hello, development world!

$ RAILS_ENV=development bundle exec rails r 'puts Settings.format % Settings.world'
Hello, development world!

$ RAILS_ENV=test bundle exec rails r 'puts Settings.format % Settings.world'
Hello, test world!

$ RAILS_ENV=production bundle exec rails r 'puts Settings.format % Settings.world'
Hello, production world!