Should I check in `.ruby-gemset` and/or `.ruby-version`?

Question

I've just updated RVM, and in place of the old .rvmrc, it auto-created .ruby-gemset and .ruby-version.

I've always had .rvmrc files with contents like rvm use --create default@project_name. However, .ruby-version contains the specific Ruby version I'm running rather than default. I'm hesitant to check this in.

Also, I heard someone say on a podcast that one shouldn't check in .ruby-gemset because others may have their own preferences about how to name gemsets.

When should or shouldn't I check in .ruby-gemset and/or .ruby-version?

Specifically:

• What are some of the tradeoffs?
• How does the type of project affect the decision (for example, applications vs gems)?
• If they should be checked in, how does the type of project affect what should go in these files?

Citations from from the creators of tools like rvm, rbenv, etc would be appreciated in an answer.

Answer 1

For standard projects

Check in .ruby-version if your project depends on a ruby like ruby-2.0.0. Check in .ruby-gemset only if your team agreed on it. Add .rvmrc to .gitignore so anyone can override .ruby-* files settings with .rvmrc.

For gems

Check in .ruby-version with ruby-1.8.7 only if your project still targets ruby 1.8.7, otherwise check it in only if your gem requires it. Do not check in .ruby-gemset.