thoughtbot/paperclip — comment on commit b948f968c494478da5dd18dcbae4f588a5a81eb5
File:  line 0
By monde:

I like pulling options out into the object Paperclip::Options. Perhaps the options instance variables could be mixed in our sub-classed based on the storage strategy instead filesystem, fog, and s3 variables on the base class. For instance, such as how Paperclip::Storage::S3 is extended onto attachment when it is initialized and storage is set to s3.