.rvmrc

rvm --create --use maglev-24990@my_gemset
ruby update.rb

update.rb

require "open-uri"

installed = /(\d+)$/.match(ENV['RUBY_VERSION'])[1].to_i

version = `curl -s https://github.com/MagLev/maglev/raw/master/version.txt | head -n 1`.chomp.strip

latest = /([\d]+?)-\d+\)$/.match(version)[1].to_i

if (latest > installed)
  puts "*" * 75
  puts "There's a later version: #{latest}"
  puts "maglev stop"
  puts "rvm upgrade maglev-#{installed} maglev-#{latest}"
  puts "sed -i 's/#{installed}/#{current}/' .rvmrc"
  puts "*" * 75
end