It used to be that every project had its own
.ruby_version file. But you’d also have to specify the same version in the
Gemfile. I say nay to
.ruby_version and instead get it from one place:
alias ruby-vers="cat Gemfile | grep '^ruby' | sed -E \"s/.*[\\\"'](.+)[\\\"']/\1/"\"
Now you can
$ chruby `ruby-vers` your way to success!