    # File lib/chef/provider/package/rubygems.rb, line 390
            def source_is_remote?
              return true if @new_resource.source.nil?
              scheme = URI.parse(@new_resource.source).scheme
              # URI.parse gets confused by MS Windows paths with forward slashes.
              scheme = nil if scheme =~ /^[a-z]$/
              %w{http https}.include?(scheme)
            end