dry-configurable란?
dry-rb시리즈 중에 하나로 config/settings의 설정을 Thread-safe하게 선언이 가능한 gem이다.
dry-configurable is a simple mixin to add thread-safe configuration behaviour to your classes. There are many libraries that make use of configuration, and each seemed to have their own implementation with a similar or duplicate interface, so we thought it was strange that this behaviour had not already been encapsulated into a reusable gem, hence dry-configurable was born.
사용방법
document를 참고
#config/settings/default.rb
class App
extend Dry::Configurable
# Pass a block for nested configuration (works to any depth)
setting :database do
# Can pass a default value
setting :dsn, 'sqlite:memory'
end
# Defaults to nil if no default value is given
setting :adapter
# Pre-process values
setting(:path, 'test') { |value| Pathname(value) }
# Passing the reader option as true will create attr_reader method for the class
setting :pool, 5, reader: true
# Passing the reader attributes works with nested configuration
setting :uploader, reader: true do
setting :bucket, 'dev'
end
end
동작확인
App.config.database.dsn
# => "sqlite:memory"
App.config.database.dsn = 'jdbc:sqlite:memory'
App.config.database.dsn
# => "jdbc:sqlite:memory"
App.config.adapter
# => nil
App.config.path
# => #<Pathname:test>
App.pool
# => 5
App.uploader.bucket
# => 'dev'
사용해본 감상
환경별 설정
문제 없었다.
config/settings/default.rb을 베이스로 선언해서 config/settings/development.rb을 재정의 하면 development환경에서는 development.rb의 정의를 우선참조 해줬다.
문자열 외에 값 선언시 유용
블록으로 선언이 가능해서 문자열 외의 값들을 다루기 편한 듯?
Thread-safe
검증은 못해봤는데 뭐 잘 동작하겠지..