Some ruby version changers set GEM_HOME outside of RUBY_ROOT

[edsinclair]

chruby for example defaults to:

$HOME/.gem/$RUBY_ENGINE/$RUBY_VERSION

https://github.com/postmodern/chruby/blob/master/share/chruby/chruby.sh#L32-L58

Currently not sure what the most portable solution is here...

[edsinclair]

Just updating with my temporary manual workaround:
I installed bundler into the GEM_ROOT like so:

‹1.8.7› GEM_HOME=$GEM_ROOT gem install bundler
‹1.9.3› GEM_HOME=$GEM_ROOT gem install bundler
‹2.0.0› GEM_HOME=$GEM_ROOT gem install bundler
‹jruby› GEM_HOME=$GEM_ROOT gem install bundler
‹rbx› GEM_HOME=$GEM_ROOT gem install bundler

But this has obvious problems as I'll need to remember this every time it is necessary to update bundler etc.

wwtd should be able to find bundler even when the GEM_HOME is outside of the RUBY_ROOT

[SteveBenner]

Hi, I'm not using this software but found the issue while googling about Ruby ENV variables. I thought I would offer that if you are using a repetitive solution for configuring Rubygems, it may prove useful to look into the configuration options for Rubygems environment here. If you're already aware of that functionality @edsinclair sorry for wasting your time :) I just know that Rubygem has a lot of features that are overlooked; it's really quite flexible.