From an existing git repo, create a bare git repository on a remote server and configure its remote.

remotize.rb

#!/usr/bin/env ruby

begin
  project = ARGV[0]
  server = ARGV[1]

  if project.nil?
    raise "<project> not specified"
  end
  if server.nil?
    raise "<server> not specified"
  end

  `git clone --bare ./#{project} #{project}.git`
  `scp -r #{project}.git #{server}:#{project}.git`
  `rm -rf #{project}.git`
  `cd #{project} && git remote add origin #{server}:#{project}.git && git push --set-upstream origin master`
rescue StandardError => e 
  STDERR.puts("Error #{e.message}. Usage: remotize.rb <project> <server>")
end

Sample usage: (from parent directory of git repo named pytorch_test)

remotize.rb pytorch_test git@git.server.local