This upgrade script is only for Rails 3.2.12 apps. It'll work better the newer your app is. For more mature apps, you'll run into a lot more conflicts as this approach involves applying a git patch.

In this case, I'd suggest comparing your app against the generated app diff.

To resolve any conflicts you can tweak the patch file in upgrade/upgrade.patch.

• In your Rails 3.2.12 app simply perform to let you know if the upgrade applies cleanly or not.

bash < <(curl -L https://raw.github.com/gist/5132812)

• If and only if the above step does not report any errors, proceed to perform

bash < <(curl -L https://raw.github.com/gist/5136839)

Your Gemfile and Gemfile.lock will be backed up into upgrade\backups as seen in the source of this repo.

This project rocks and uses MIT-LICENSE.