TextMate, rvm and TM_RUBY - ruby

Question

In the TextMate RVM instructions the text it says to set TM_RUBY to /Users/wayne/.rvm/bin/textmate_ruby and in the image it shows it set to rvm-auto-ruby. I decided to set it to rvm-auto-ruby thinking that it would use RVM's default Ruby version.
When running Command R in the RSpec.bundle having TM_RUBY set to rvm-auto-ruby will result in a load error. When you set it to textmate_ruby it works.
The only problem here is that TextMate doesn't always use the default version of Ruby since it's hardcoded in that file.
/Users/jspooner/.rvm/bin/textmate_ruby:
#!/usr/bin/env bash
if [[ -s "/Users/jspooner/.rvm/environments/ruby-1.9.2-head" ]] ; then
source "/Users/jspooner/.rvm/environments/ruby-1.9.2-head"
exec ruby "$#"
else
echo "ERROR: Missing RVM environment file: '/Users/jspooner/.rvm/environments/ruby-1.9.2-head'" >&2
exit 1
fi
So two questions:
What should TM_RUBY=rvm-auto-ruby actually do?
Is there a way to have TextMate use the RVM default?

Answer 1

Setting TM_RUBY to your-path/rvm-auto-ruby
http://rvm.io/integration/textmate/
should load whatever ruby and gemset is indicated in the .rvmrc file located in the project and if none default to rvm default. I just got this working and it is very smooth. I did need to get the latest version of rvm
rvm get head
to make it work and restart Textmate. Hope that helps.

Answer 2

See your other, similar, question Rspec bundle is broken in TextMate and rvm.
To help others chasing this same issue, the solution seems to be at: RVM / Textmate doesnt recognize .rvmrc Options.
Basically you replace the ~/.rvm/bin/textmate_ruby soft link with a file. This is what I did:
cd ~/.rvm/bin
mv textmate_ruby old.textmate_ruby
Create a shell script called textmate_ruby in the same directory to replace the soft-link, using the following contents:
!/usr/bin/env sh
source ~/.rvm/scripts/rvm
cd .
exec ruby "$#"
chmod +x textmate_ruby
Before doing this change I'd see my system Ruby's version (1.8.7) displayed if I did CMD+R to run the following script in TextMate:
puts RUBY_VERSION
Evaluating the script using CMD+CNTRL+SHIFT+E gave me 1.9.2.
After switching to use that script both point to Ruby 1.9.2, so at least there's some consistency now. I don't see TextMate tracking my currently set RVM Ruby version yet; Instead it's using the default version set in RVM: rvm use 1.9.2 --default. This is still a step forward because I can control which Ruby TextMate uses by adjusting my --default.
If you decide you want to revert later, just rename, or delete, the script and reverse step 2 above.