1a8c4199b2
Config::Loader will be the new class responsible for loading configuration and replaces the previous dual-role "Vagrant::Config" played. While this commit is very early-stage, once this new architecture is flushed out, it will make loading, using, and extending configuration much easier and cleaner. Additionally, I believe this will help post Vagrant 1.0 if multi-language configuration is implemented.
62 lines
2.2 KiB
Ruby
62 lines
2.2 KiB
Ruby
module Vagrant
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module Config
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# This class is the "top" configure class, which handles registering
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# other configuration classes as well as validation of all configured
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# classes. This is the object which is returned by {Environment#config}
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# and has accessors to all other configuration classes.
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#
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# If you're looking to create your own configuration class, see {Base}.
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class Top < Base
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@@configures = {} if !defined?(@@configures)
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# The environment that this configuration is for.
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attr_reader :env
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class << self
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# The list of registered configuration classes as well as the key
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# they're registered under.
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def configures_list
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@@configures ||= {}
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end
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# Registers a configuration class with the given key. This method shouldn't
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# be called. Instead, inherit from {Base} and call {Base.configures}.
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def configures(key, klass)
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configures_list[key] = klass
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attr_reader key.to_sym
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end
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end
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def initialize(env=nil)
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self.class.configures_list.each do |key, klass|
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config = klass.new
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config.top = self
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instance_variable_set("@#{key}".to_sym, config)
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end
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@env = env
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end
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# Validates the configuration classes of this instance and raises an
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# exception if they are invalid. If you are implementing a custom configuration
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# class, the method you want to implement is {Base#validate}. This is
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# the method that checks all the validation, not one which defines
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# validation rules.
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def validate!
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# Validate each of the configured classes and store the results into
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# a hash.
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errors = self.class.configures_list.inject({}) do |container, data|
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key, _ = data
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recorder = ErrorRecorder.new
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send(key.to_sym).validate(recorder)
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container[key.to_sym] = recorder if !recorder.errors.empty?
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container
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end
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return if errors.empty?
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raise Errors::ConfigValidationFailed, :messages => Util::TemplateRenderer.render("config/validation_failed", :errors => errors)
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end
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end
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end
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end
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