Capistrano 3 copy strategy equivalent

I updated to Cap 3 and it appears that set :deploy_via, :copy is no longer supported. In the release annoucement there is a link to a video for replicating the copy strategy which currently returns a 404. I used the :copy strategy because the server did not have access to git or access to the repository because it was behind a firewall. What is the best way to replicate this functionality with v3?