The package we just installed allow us to install different versions of Ruby and specify which version to use on a per project basis and globally. $ echo 'eval '$(rbenv init -)'' > ~/Projects/config/env.sh $ brew install rbenv ruby-build rbenv-default-gems rbenv-gemset Yes it is annoying to wait to install gems for a fresh project each time but after that it is quick to work with.OS X comes with Ruby installed (Mavericks even gets version 2.0.0, previously it was only 1.8.7), as we don't want to be messing with core files we're going to use the brilliant rbenv and ruby-build to manage and install our Ruby versions for our development environment. But the problem is that I want to use the newer versions of gems or custom gems for my Netlify projects. The situation is bit different for simulating GH Pages locally, as I could setup my user environment to exactly match the gem version of GH Pages, at least for the gems that I care about. I have also had a ton of annoying issues over the years where a user-level or root-level change which was maybe even an automated update broke multiple projects - in one case my IDE itself broke. Yes there is duplication especially of larger gems, but this is acceptable for robustness it gives each project and when storage is not an issue. No worrying what the global environment is on each machine or making sure you replicate it on each. If I want to setup a project on a different laptop or server, its dependencies are all contain in the Gemfile and installed into the local vendor/bundle. Sometimes you'll install a new gem and it will upgrade something else behind the scenes and then later you find another project project and it is hard to work out why.

If two projects need different versions of the same gem, they can have their own space without conflicting.įrom your other comment on Jekyll it looks like you can have multiple versions of a gem installed globally, but that is not they way it goes in Python and Node.js. The idea of isolating dependencies into project folder like vendor/bundle is the same as creating a virtual environment in Python or node_modules in Node.js.

Gem install jekyll bundler brew