Programs that rewrite Ruby programs (thomasleecopeland.com)

I have been wanting to toy with doing this for a long time now. After seeing this, maybe I will get around to it.

Rubocop does a similar job, also thanks in part to the parser library.

Author of `rails5-spec-converter` here. I've been looking for ways to advertise this gem and wouldn't have guessed someone would find it via the reverse_dependencies API :)

I don't think there's anything RSpec-specific in the gem other than the default filename glob, which you can override on the command line. If there are any other issues transforming non-RSpec suites I'd love to fix them.

Relatedly, I wrote this to automatically rewrite rails controllers that wanted to implement strong params

http://ruru.name/entries/upgrading-rails-to-use-strong-param...

not "smart" but worked well enough for me

If anyone is looking for a similar tool for JS, I've used codemods to great effect.

https://vramana.github.io/blog/2015/12/21/codemod-tutorial/

I forget who said it, but "Programs that write programs are the happiest programs of all".

I find these kinds of transformations so much fun they're like the coolest part of programming.