Application generator for Rails3
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Rails 3, RSpec, Factory Girl, Haml, and jQuery

Easily generate a Rails 3 application with RSpec, Factory Girl, Haml, and jQuery in one line:

% rails new my_app -J -T -m \

Need Cucumber?

Use this generator file instead:

% rails new my_app -J -T -m \


We love rvm, so the application has an .rvmrc generated to specify a gemset.


This also gives you the Factory Girl and Haml Rails 3 generators — the generators for RSpec are in the RSpec gem — so that your factories and views are generated using Factory Girl and Haml, and that all your generated tests are specs. These generators are from the haml-rails and factory_girl_generator gems.

JavaScript Includes

Since the Rails helper javascript_include_tag :defaults is looking for Prototype, we change the default JavaScript includes to be jQuery.


We love git, so the application has a git repo initialized with all the initial changes staged.

Wrap Up

After the application has been generated, there are a few final command to finish the install, check the output!

Note on Patches/Pull Requests

  • Fork the project.
  • Make your feature addition or bug fix.
  • Add tests for it. This is important so I don’t break it in a future version unintentionally.
  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
  • Send me a pull request. Bonus points for topic branches.