gistfile1.txt

[12] pry(main)> logger = ActiveSupport::BufferedLogger.new('foo.log', :shift_age => false, :shift_size => false)
=> #<ActiveSupport::BufferedLogger:0x007fe3f8af73d0
 @log=
  #<Logger:0x007fe3f8af7308
   @default_formatter=#<Logger::Formatter:0x007fe3f8af7268 @datetime_format=nil>,
   @formatter=#<Logger::SimpleFormatter:0x007fe3f8af7010 @datetime_format=nil>,
   @level={:shift_age=>false, :shift_size=>false},
   @logdev=
    #<Logger::LogDevice:0x007fe3f8af71f0
     @dev=#<File:foo.log>,
     @filename="foo.log",
     @mutex=#<Logger::LogDevice::LogDeviceMutex:0x007fe3f8af71a0 @mon_count=0, @mon_mutex=#<Mutex:0x007fe3f8af7100>, @mon_owner=nil>,
     @shift_age=0,
     @shift_size=1048576>,
   @progname=nil>,
 @log_dest="foo.log">