It is always very hard problem to begin respecting code style on a big old project, especially if there are a lot of developers and the initial code quality is not so good. However, I believe that even in this case it is needed to pay attention on code quality to improve at least some parts of project. The main idea, all developers should start writing good code despite the rest classes still contain horrible code. In this post I’d like to tell about the system that helps improving style in a huge project and share some points about codenarc and its grails plugin.