wayneeseguin/rvm — pull request #873 by yellow5 (2012-03-31 05:03:27+00:00)
Title: Verify that a ruby is installed before installing rvm to its global gemset

The recent RVM feature of automatically installing the rvm gem to global gemsets currently attempts installation for all existing global gemset directories. I have scenarios where the ruby is no longer installed, but the global gemset directory still exists. This causes error messages to be displayed every time that rvm get head is called.

With some help from @mpapis, this patch attempts to verify that a given ruby is installed before adding its global gemset path to the rvm gem installation queue.