remove (Gem::Uninstaller)

    # File lib/rubygems/uninstaller.rb, line 181
      def remove(spec, list)
        unless dependencies_ok? spec then
          raise Gem::DependencyRemovalException,
                "Uninstallation aborted due to dependent gem(s)"
        end

        unless path_ok?(@gem_home, spec) or
               (@user_install and path_ok?(Gem.user_dir, spec)) then
          e = Gem::GemNotInHomeException.new \
                "Gem is not installed in directory #{@gem_home}"
          e.spec = spec

          raise e
        end

        raise Gem::FilePermissionError, spec.installation_path unless
          File.writable?(spec.installation_path)

        FileUtils.rm_rf spec.full_gem_path

        original_platform_name = [
          spec.name, spec.version, spec.original_platform].join '-'

        spec_dir = File.join spec.installation_path, 'specifications'
        gemspec = File.join spec_dir, "#{spec.full_name}.gemspec"

        unless File.exist? gemspec then
          gemspec = File.join spec_dir, "#{original_platform_name}.gemspec"
        end

        FileUtils.rm_rf gemspec

        cache_dir = File.join spec.installation_path, 'cache'
        gem = File.join cache_dir, "#{spec.full_name}.gem"

        unless File.exist? gem then
          gem = File.join cache_dir, "#{original_platform_name}.gem"
        end

        FileUtils.rm_rf gem

        Gem::DocManager.new(spec).uninstall_doc

        say "Successfully uninstalled #{spec.full_name}"

        list.delete spec
      end