generate_gem_install.rb

# Generates an list of gem install commands. Useful for moving to enterprise ruby.

existing_gems = %<actionmailer (2.0.2, 1.3.6)
actionpack (2.0.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.0.2, 1.15.6)
activeresource (2.0.2)
activesupport (2.0.2, 1.4.4)

existing_gems.each do |line|
  name, version_line = line.scan(/(.+) \((.+)\)/).first
  versions = version_line.split(', ')
  
  versions.each do |version|
    print "/opt/ruby-enterprise-1.8.6-20090201/bin/ruby /opt/ruby-enterprise-1.8.6-20090201/bin/gem install #{name} --no-rdoc --no-ri -v '#{version}'; "
  end
end