Grab ruby gem licences from your bundle

licences.rb

File.open("licences", "w+") do |file|
  Bundler.environment.specs.each do |spec|
    Dir["#{spec.full_gem_path}/LICENSE*"].each do |f|
      file.write("======================= #{spec.name} - #{spec.version} =======================\n")
      file.write(File.read(f))
      file.write("------------------------------------------------------------------------------\n #{f}\n------------------------------------------------------------------------------\n\n")
    end
  end
end