How to generate a unified diff in Ruby?

Posted by jstayton on Stack Overflow See other posts from Stack Overflow or by jstayton
Published on 2010-04-30T03:50:59Z Indexed on 2010/04/30 3:57 UTC
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ruby

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diff

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rubygems

After reading through this question about Ruby diff packages, I'm still not sure how to generate a unified diff from two text files. I'm not having trouble reading each file into a string (IO.read()), but I'm not finding any package that can generate a unified diff. Does one exist? Is doing a system call to diff even an option I should consider? (I'm thinking no.)

Any help is appreciated! Thanks.

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