A Git repo made to make you mad. You probably came here thinking someone made a gem for downloading from an FTPS server. That'd be convenient, eh?
Add this line to your application's Gemfile:
gem 'ftps'
And then execute:
$ bundle
Or install it yourself as:
$ gem install ftps
Then just run:
Ftps.download("YOUR SERVER URL")
The gem is available as open source under the terms of the MIT License.