Class: Cabin::Outputs::IO

Inherits:
Object
  • Object
show all
Defined in:
lib/cabin/outputs/io.rb

Overview

Wrap IO objects with a reasonable log output.

If the IO instance is attached to a TTY, the output will try to be a bit more human-friendly in this format:

message {json data}

If the IO instance is not attached to a TTY, the output will be the JSON representation of the event:

{ "timestamp": ..., "message": message, ... }

Instance Method Summary collapse

Constructor Details

#initialize(io) ⇒ IO

Returns a new instance of IO.



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# File 'lib/cabin/outputs/io.rb', line 17

def initialize(io)
  @io = io
end

Instance Method Details

#<<(event) ⇒ Object 



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# File 'lib/cabin/outputs/io.rb', line 23

def <<(event)
  if @io.tty?
    data = event.clone
    # delete things from the 'data' portion that's not really data.
    data.delete(:message)
    data.delete(:timestamp)
    message = "#{event[:message]} #{data.to_json}"

    @io.puts(message)
    @io.flush if @io.tty?
  else
    @io.puts(event.to_json)
  end
end