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From experience, we know that projects tend to grow. Developers have a tendency to add new lines of code to their projects. They sometimes even change old lines to fix something. Some projects exist for many years and are modified by many developers. They usually want to know what s going on in the project. But when they change the code, they add to the project s growth. But what if you re handed a project that looks like a big ball of mud One class may have been developed with Cobol influence and look like functional programming. Some lines may be 1,000 characters long; or a previous developer may have used onecharacter variable names. It s a pain to work with smelly code. The only way out is to enforce some rules. Many software shops have written coding guidelines, but having rules doesn t mean they ll be obeyed. Developers are human they re working under time pressure, and sometimes they neglect or don t even understand the rules. Only if the coding rules are enforced will they be obeyed. Keep in mind that you should adjust the number of rules you want to obey to the project you re working on. FxCop and StyleCop offer hundreds of rules, and some may be more important to you than others (see Krzysztof Cwalina s and Brad Abrams book Framework Design Guidelines for more on that topic). There s nothing better than static code analysis to check the rules. Tools like the ones you ve used in this chapter FxCop, StyleCop, NDepend, and Team City s Duplicates Finder are great guards against bad coding habits. Static code analysis as part of your CI process will effectively fight any smell in the code. You can even write your own rules, to guard yourself against that violent psychopath who may work on the code next. It s especially important to have clean code if you re moving toward the next part of our CI journey: code documentation. As we ve gone through the chapter, you ve probably seen StyleCop rule violations that tell you parts of the code aren t documented. It s time to obey this rule, too, as you ll find out in the next chapter.

very business has room for improvement. Skyscrapers can be taller, cars can be faster even grass can be greener. CI isn t any different. There s always room to do it better an opportunity for smoothing and polishing. In the last part of this book (chapters 9 through 12), you ll squeeze even more from the CI process. You ll extend it with automatically documentation generation, using the .NET XML documentation feature to build readable technical documentation right from the source code. We ll continue the discussion with deployment and delivery techniques in CI. You ll learn how to sleep well, knowing that your software is always ready to be deployed. We ll look at continuous database integration. And in the last chapter, we ll peek into highscale CI setups. CI can be extended ad absurdum. The key is, as usual, to maintain balance to include everything you need and nothing else. You shouldn t try to pack everything into the CI process: remember that you need the build feedback as soon as possible. The entire CI process should take less than 10 minutes, so choose wisely what you include. Leave the rest for regular nightly or weekly builds. In this section of the book, we ll help you choose. After reading this part, you ll be able to produce nice-looking technical documentation out of the comments in your code during the periodic CI build. You ll have enough know-how to automate the software deployment in various scenarios. You ll know how to bind CI with database management and how to scale CI. If you want to make your CI process shine, keep reading: we ll teach you how to polish it!