Just as a note: by default any modern rails app is going to call Bundler.require, so you only need to use bundle exec if e.g. your system rake is a different ve

Just as a note: by default any modern rails app is going to call Bundler.require, so you only need to use bundle exec if e.g. your system rake is a different version or your system rails is not 3+. I've heard claims that this can have non-trivial performance effects.