Why should I care about RVM's Gemset feature when I use Bundler?

Posted by t6d on Stack Overflow See other posts from Stack Overflow or by t6d
Published on 2011-01-14T08:26:43Z Indexed on 2011/01/14 8:53 UTC
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ruby

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Workflow

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passenger

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bundler

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rvm

I just don't get it. I thought, Bundler was developed to resolve version conflicts between gems. So that I just have to require "bundler/setup" and everything is fine, knowing that Bundler will load the correct versions of all my gems and their dependencies. Now, RVM is great for managing multiple Rubies, I know, but why should I care about the Gemset feature? Do I miss something here? Can it make my development even easier? Maybe, some of you can give me some hints on the perfect RVM + Bundler workflow for both, development and production.

I also don't know when RVM starts switching to another Ruby. I know that I can have an .rvmrc file in my project, but do I have to cd to this directory so that the switch happens?

Furthermore, I usually use Passenger for development since, thanks to the Passenger.prefpane, integration in Mac OS is great. Can I still do that with RVM or is there a better way to do it? Does Passenger recognize .rvmrc files and switch to the correct Gemset?

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