I want to use a gem from git. So in app's Gemfile I write:
gem "some_gem" :git => https://github.com/foo/bar.git
Then I have to install that gem with bundler:
bundler update bar
When I do this all works just fine, the gem from git is in use. But
where is that gem locally stored? Where does bundler hides it? I connot
neither in /gems directory nor in app's vendor directory. Where does
installs that git gem?