rake rails:freeze:rails23

namespace :rails do
  namespace :freeze do
    desc 'Lock to the current Rails 2-3-stable'
    task :rails23 do
      rm_rf 'vendor/rails'
      `git clone -b 2-3-stable --depth=1 git://github.com/rails/rails.git vendor/rails`
      chdir 'vendor/rails' do
        latest_revision = `git log -1 --pretty=format:%H`

        %w(.git Rakefile cleanlogs.sh pushgems.rb release.rb activemodel).each do |goner|           
          rm_rf goner
        end 

        touch "REVISION_#{latest_revision}"
      end 

      puts 'Updating current scripts, javascripts, and configuration settings'
      Rake::Task['rails:update'].invoke
    end 
  end 
end