Class: Canfig::EnvConfig

Inherits:
OpenConfig show all
Defined in:
lib/canfig/env_config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from OpenConfig

#allowed?, #set

Methods inherited from Config

#[], #[]=, #allowed?, #changed, #changed?, #clear, #configure, #configure_with_args, #configure_with_block, #configure_with_file, #disable_state_saves!, #enable_state_saves!, #method_missing, #save_state!, #save_state?, #set, #to_h

Constructor Details

#initialize(namespace = nil, **attributes, &block) ⇒ EnvConfig

Returns a new instance of EnvConfig.



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# File 'lib/canfig/env_config.rb', line 5

def initialize(namespace=nil, **attributes, &block)
  @namespace = namespace ? "#{namespace.to_s.underscore.upcase.gsub(/_$/, '')}_" : namespace
  super(*attributes.keys, &block)
  attributes.each do |key,val|
    env(key, val)
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Canfig::Config

Instance Attribute Details

#namespace ⇒ Object (readonly)

Returns the value of attribute namespace.



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# File 'lib/canfig/env_config.rb', line 3

def namespace
  @namespace
end

Instance Method Details

#env(key, default = nil, &block) ⇒ Object 



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# File 'lib/canfig/env_config.rb', line 17

def env(key, default=nil, &block)
  @state[key.to_sym] ||= begin
    key = key.to_s.underscore.upcase
    key = key.gsub(/^#{namespace}/, '') if namespace
    val = ENV.fetch("#{namespace}#{key}", default, &block)
    val && ENV.key?(val.to_s) ? env(val, default, &block) : val
  end
end

#get(key, default = nil, &block) ⇒ Object 



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# File 'lib/canfig/env_config.rb', line 13

def get(key, default=nil, &block)
  super || env(key, default, &block)
end