    # File lib/chef/cookbook_loader.rb, line 38
        def initialize(*repo_paths)
          @repo_paths = repo_paths.flatten
          raise ArgumentError, "You must specify at least one cookbook repo path" if @repo_paths.empty?
          @cookbooks_by_name = Mash.new
          @loaded_cookbooks = {}
          @metadata = Mash.new
          @cookbooks_paths = Hash.new {|h,k| h[k] = []} # for deprecation warnings

          # Used to track which cookbooks appear in multiple places in the cookbook repos
          # and are merged in to a single cookbook by file shadowing. This behavior is
          # deprecated, so users of this class may issue warnings to the user by checking
          # this variable
          @merged_cookbooks = []

          load_cookbooks
        end