def gemset_globalcache(enable = true)
      case enable
        when "enabled", :enabled
          run(:__rvm_using_gemset_globalcache).successful?
        when true, "enable", :enable
          rvm(:gemset, :globalcache, :enable).successful?
        when false, "disable", :disable
          rvm(:gemset, :globalcache, :disable).successful?
        else
          false
      end
    end
def gemset_globalcache(enable = true)
      case enable
        when "enabled", :enabled
          run(:__rvm_using_gemset_globalcache).successful?
        when true, "enable", :enable
          rvm(:gemset, :globalcache, :enable).successful?
        when false, "disable", :disable
          rvm(:gemset, :globalcache, :disable).successful?
        else
          false
      end
    end
Enable or disable the rvm gem global cache.