rvm

I was using a disk analyzer and I noticed in my .rvm folder two gems, nokogiri and capybara-webkit , bigger than the usual: Checking inside of them I found that for nokogiri there is a temp folder and for capybara-webkit a source folder. My question is: Is it safe to delete these folders?(Yeah, I'm a greedy disk space saver) and why nokogiri is creating that temporary folder? Because I have another gemset (with a lower version of ruby and nokogiri) and there isn't creating that folder. Yes, you can remove the tmp directory. If you don't have a new-enough version of libxml2 or libxslt nokogiri

I develop Rails apps using RVM (ruby version manager). I had to download XCode, in the app store I got only version 4.2. Now RVM says that it can't build rubies properly with this XCode, so I followed this tutorial: http://www.frederico-araujo.com/2011/07/30/installing-rails-on-os-x-lion-with-homebrew-rvm-and-mysql/ I downloaded the XCode version from the link that is shown when you type rvm requirements in the console. (https://developer.apple.com/downloads/download.action?path=Developer_Tools/xcode_4.1_for_lion/xcode_4.1_for_lion.dmg) Now, there is a 3.09 GB .dmg with an installXCodeLion