Uninstall Rails 3 with dependencies?

Question

I like that Rails 3 is so easy to install: gem install rails --pre, and all of the dependencies are automatically installed for you. But, what about uninstalling it? If I just do gem uninstall rails, I still have

actionmailer (3.0.0.beta3)
actionpack (3.0.0.beta3)
activemodel (3.0.0.beta3)
activerecord (3.0.0.beta3)
activeresource (3.0.0.beta3)
activesupport (3.0.0.beta3)

which I want to get rid of. What's the easiest way to do so?

Answer 1

Check your currently installed version(s):

gem list -d rails

Then uninstall the version(s) you don't want:

sudo gem uninstall rails -v 3.0.0.beta3
sudo gem uninstall actionmailer -v 3.0.0.beta3

etc.

I'm still trying to figure out how to completely remove rails 3.0.0.beta3 and all its deps.

Answer 2

if you're planning to upgrade to a newer version of rails, you can do:

sudo gem clean

after newer version has been installed, this uninstall All older versions of your gems leaving only the latest version in your system.