colored output

lib/common_helper.rb

@@ -120,3 +120,10 @@ def banner()
     puts
   end
 end
+
+def colorize(text, color_code)
+  "\e[#{color_code}m#{text}\e[0m"
+end
+
+def red(text); colorize(text, 31) end
+def green(text); colorize(text, 32) end