Add latest changes from gitlab-org/gitlab@master

lib/gitlab_settings/settings.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module GitlabSettings
+  class Settings
+    attr_reader :source
+
+    def initialize(source, section)
+      raise(ArgumentError, 'config source is required') if source.blank?
+      raise(ArgumentError, 'config section is required') if section.blank?
+
+      @source = source
+      @section = section
+
+      reload!
+    end
+
+    def reload!
+      yaml = ActiveSupport::ConfigurationFile.parse(source)
+      all_configs = yaml.deep_stringify_keys
+      configs = all_configs[section]
+
+      @config = Options.build(configs)
+    end
+
+    def method_missing(name, *args)
+      config.public_send(name, *args) # rubocop: disable GitlabSecurity/PublicSend
+    end
+
+    def respond_to_missing?(name, include_all = false)
+      config.respond_to?(name, include_all)
+    end
+
+    private
+
+    attr_reader :config, :section
+  end
+end