Send your SSH key to GitHub, with optional OTP auth

github-key.rb

# install gems with; 
#   gem install io-console github_api --no-ri --no-rdoc

require 'github_api'
require 'io/console'

# Bypass annoying deprecation warning between the
# github_api gem and the faraday gem
Faraday::Builder = Faraday::RackBuilder

print "Github Username: "
user_name = gets.strip
print "Github Password (nothing will be displayed): "
password = STDIN.noecho(&:gets).strip
print "\n2 Factor Auth (optional one time password): "
otp = gets.strip

github = Github.new do |config|
  config.basic_auth = "#{user_name}:#{password}"
  unless otp.empty?
    config.connection_options = {headers: {"X-GitHub-OTP" => otp}}
  end
end

begin
  github.users.keys.create("title" => "FirehoseVagrant", 
    "key"=> File.open("/home/vagrant/.ssh/id_rsa.pub").read)
	
  puts "\nok!"
rescue Github::Error::UnprocessableEntity
  puts "\nAdding SSH key failed, is it possible you've already added it? check here: https://github.com/settings/ssh"
rescue Github::Error::Unauthorized
  puts "\nAuthentication Failed, check your username & password (or one-time-password)"
end