Best Practice: Never install gems with sudo

Installing gems with sudo?

Have a look at the Xamarin docs for a better way. 1

Or use a ruby manager like rbenv 3 or rvm 4.

The Calabash iOS and Android devs use rbenv, rvm, and the method described in the Xamarin docs.

The Calabash iOS toolchain is tested with rvm in Travis CI and with rbenv in Jenkins.

You can find more information on this wiki page: Ruby on MacOS.

Why you should not use sudo to install gems.

Using sudo is inherently dangerous. Executing a gem install with sudo is even more dangerous because gems can execute code at install time.

• https://github.com/wmorgan/killergem
• https://twitter.com/timcharper/status/26202857990

Still not convinced? https://robots.thoughtbot.com/psa-do-not-use-system-ruby