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We have a challenge in that so many of our web applications are built in a way that prevents us from performing analysis across technologies. For example, a modern rails app will possibly include haml, sass, coffeescript, and ruby along with the usual html, Javascript, css, etc., that are included in the various gems and plugins.

There are a lot of ways to skin this poor cat, but at this time they are generally manual and therefore unused. As a result, we try to solve dead code problems as if it is an entirely new challenge.

Dynamic code, and especially code with insufficient test coverage, poses a particular challenge, but again, it is generally possible to instrument code to see if it is ever called by the application.




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