# File railties/builtin/rails_info/rails/info.rb, line 25
      def component_version(component)
        require "#{component}/version"
        "#{component.classify}::VERSION::STRING".constantize
      end

# File railties/builtin/rails_info/rails/info.rb, line 21
      def components
        %w( active_record action_pack active_resource action_mailer active_support )
      end

# File railties/builtin/rails_info/rails/info.rb, line 30
      def edge_rails_revision(info = svn_info)
        info[/^Revision: (\d+)/, 1] || freeze_edge_version
      end

# File railties/builtin/rails_info/rails/info.rb, line 34
      def freeze_edge_version
        if File.exists?(rails_vendor_root)
          begin
            Dir[File.join(rails_vendor_root, 'REVISION_*')].first.scan(/_(\d+)$/).first.first
          rescue
            Dir[File.join(rails_vendor_root, 'TAG_*')].first.scan(/_(.+)$/).first.first rescue 'unknown'
          end
        end
      end

# File railties/builtin/rails_info/rails/info.rb, line 15
      def property(name, value = nil)
        value ||= yield
        properties << [name, value] if value 
      rescue Exception
      end

# File railties/builtin/rails_info/rails/info.rb, line 53
      def to_html
        returning table = '<table>' do
          properties.each do |(name, value)|
            table << %(<tr><td class="name">#{CGI.escapeHTML(name.to_s)}</td>)
            table << %(<td class="value">#{CGI.escapeHTML(value.to_s)}</td></tr>)
          end
          table << '</table>'
        end
      end

# File railties/builtin/rails_info/rails/info.rb, line 44
      def to_s
        column_width = properties.names.map {|name| name.length}.max
        ["About your application's environment", *properties.map do |property|
          "%-#{column_width}s   %s" % property
        end] * "\n"
      end

# File railties/builtin/rails_info/rails/info.rb, line 64
        def rails_vendor_root
          @rails_vendor_root ||= "#{RAILS_ROOT}/vendor/rails"
        end

# File railties/builtin/rails_info/rails/info.rb, line 68
        def svn_info
          env_lang, ENV['LC_ALL'] = ENV['LC_ALL'], 'C'
          Dir.chdir(rails_vendor_root) do
            silence_stderr { `svn info` }
          end
        ensure
          ENV['LC_ALL'] = env_lang
        end