How to do bundle install using specific rvm gemset from git hook post-receive?

So, I’m trying to implement a heroku-like deployment without using capistrano.
To check and install gems I’m trying to use git hook and put the following commands in /hooks/post-receive:

bundle check || bundle install

But when I run git push I get:

remote: hooks/post-receive: line 20: bundle: command not found. 

I understand that a hook probably launches commands from the wrong environment and somehow I have to switch rvm environment from hook. I tried to use rvm use 1.8.7@rails3 in post-receive but it didn’t help. Any ideas?

Git Baby is a git and github fan, let's start git clone.