I’ve never really been happy with rvm. It always felt like it was trying to do too much. And, I
really didn’t see the point of using gemsets when we have bundler. I used
rbenv for a while, and it worked pretty well. But all I really wanted was a
simple way to switch between ruby binaries. Basically, this boils down to updating
$PATH. Before I used
rbenv, I had been doing this manually.
Enter chruby. Chruby is a simple shell script does one thing, and does it well:
switch between ruby versions. It does this by updating
$PATH. You can install your rubies anywhere you
want and chruby provides a command to switch between them by updating
$PATH. By default it looks for
~/.rubies. It will find your system ruby, if installed, and allow
you to switch between that as well. It correctly sets
$GEM_PATH, which can be
confusing if don’t know what those environmental variable do.
I’m using chruby on most of my systems now, and I’ll probably stick with it until the next greatest ruby switcher comes along. Give it a try yourself!