install_with_patches.rb

#!/usr/bin/env ruby


require 'open-uri'
patchset = ARGV[0]
version  = ARGV[1]

raise 'Please specify a patchset' if patchset.nil?
raise 'Please specify a ruby version' if version.nil?

patches = open("https://raw.githubusercontent.com/skaes/rvm-patchsets/master/patchsets/ruby/#{version}/#{patchset}").read.split("\n").map do |patch|
  "-p https://raw.githubusercontent.com/skaes/rvm-patchsets/master/patches/ruby/#{version}/#{patch}"
end.join(" ")

puts "Installing ruby with #{`ruby-install --version`}"
puts "Available Rubies: #{`ruby-install`}"
`ruby-install #{patches} ruby #{version}`


__END__

Use this snippet like so:

./install_with_patches.rb railsexpress 2.2.0

This would install Ruby version 2.2.0 with the patchset https://github.com/skaes/rvm-patchsets/tree/master/patches/ruby/2.2.0/railsexpress
A patchset includes a set of patches.

A more detailed explanation: http://kgrz.io/ruby/2015/01/25/installing-patched-ruby-using-ruby-install.html