class Thor::Shell::HTML

def show_diff(destination, content) #:nodoc:
  if diff_lcs_loaded? && ENV['THOR_DIFF'].nil? && ENV['RAILS_DIFF'].nil?
    actual  = File.binread(destination).to_s.split("\n")
    content = content.to_s.split("\n")
    Diff::LCS.sdiff(actual, content).each do |diff|
      output_diff_line(diff)
    end
  else
    super
  end
end