rbenv this Mf'er

gistfile1.rb

namespace :rvm do
  task :bootstrap do
    run "echo 'Overwrote rvm:bootstrap'"
    rbenv_script = <<-SH
    #!/bin/bash
    #    
    # And now install rbenv
    export PATH=$PATH:$HOME/bin:$HOME/.rbenv/shims
    VERSION='#{ruby_version}'
    
    HAVE_RBENV_ALREADY=`which rbenv 2>/dev/null`
      if [ $? != 0 ]; then
      git clone git://github.com/sstephenson/rbenv.git ~/.rbenv
      # Add rbenv to your path
      echo 'export PATH="$HOME/.rbenv/bin:$HOME/.rbenv/shims:$PATH"' >> .bash_profile
      echo 'eval "$(rbenv init -)"' >> .bash_profile
      source ~/.bash_profile
    fi;
    
    # Install ruby-build
    HAVE_RUBY_BUILD=`which ruby-build 2>/dev/null`
    if [ $? != 0 ]; then
      cd /tmp
      git clone git://github.com/sstephenson/ruby-build.git
      cd ruby-build
      PREFIX=$HOME ./install.sh
      cd $HOME
    fi;
    
    # Install Ruby #{ruby_version}
    HAVE_CORRECT_VERSION=`rbenv versions | grep $VERSION | wc -l`
    if [ $HAVE_CORRECT_VERSION -eq 0 ]; then
      rbenv install $VERSION
      rbenv global $VERSION
      # Rehash!
      rbenv rehash
    fi;
    SH
    
    put rbenv_script, "/tmp/chef-cap-#{rails_env}-rbenv.sh", :mode => "0700"
    run "/tmp/chef-cap-#{rails_env}-rbenv.sh"
  end
end