# File lib/heroku/command/logs.rb, line 18
    def index
      init_colors

      opts = []
      opts << "tail=1"                                 if options[:tail]
      opts << "num=#{options[:num]}"                   if options[:num]
      opts << "ps=#{URI.encode(options[:ps])}"         if options[:ps]
      opts << "source=#{URI.encode(options[:source])}" if options[:source]

      @line_start = true
      @token = nil

      heroku.read_logs(app, opts) do |chk|
        next unless output = format_with_colors(chk)
        puts output
      end
    end