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Over the course of our project with multiple developers and styles, we have some tests and code that are commented out. Is there an easy way to find all code that is commented out?
The tool should be smart enough to find out that it is ruby code that is being commented not, real comments.
At this point I can only think of grep like grep #, but it should be something smarter and less manual.
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Dead code is code that is never executed. This can be a method that's no longer called, a commented out block of code, or code appearing after a return statement that's unreachable. In any case, it often reflects functionality that no longer exists in the software and offers no value.
Finding comments is easy: search for "/*" or "//". And since comments have no formal relation to code, when is a comment "about" the code nearby, and when is it just a comment ("a sonnet to ...")?
This may be ugly but I think you can inspect each ".rb" file with a rake task, line per line, matching it with a regexp (something like /#.*\n/), and run an eval("matching_string") on each match. If the comment isn't ruby code it will simply fail.
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