# 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