class Sprockets::Context

source file.
the dependency file will invalidate the cache of the
This is used for caching purposes. Any changes made to

including it.
`depend_on` allows you to state a dependency on a file without

def depend_on(path)
  if environment.absolute_path?(path) && environment.stat(path)
    @dependencies << environment.build_file_digest_uri(path)
  else
    resolve(path)
  end
  nil
end