Barby usage example

example.md

$ rake encode['Madonna na nohy do o']

Rakefile.rb

require 'barby'
require 'barby/barcode/qr_code'
require 'barby/outputter/png_outputter'

desc 'Encodes text into QR Code'
task :encode, [:text] do |t, args|
  barcode = Barby::QrCode.new(args[:text])
  outputter = Barby::PngOutputter.new(barcode)
  File.open('barcode.png', 'w'){|f| f.write outputter.to_png }
end