Helps you more easily upgrade to Rails 4. A work in progress, I'm simply shipping something of a minimum viable product to attract others to contribute.
Inspired by rails_upgrade which helped upgrade applications from Rails 2 to Rails 3.
Written in part to complement the book Upgrading to Rails 4.
Upgrade to Ruby 1.9.3 if your application does not already use it. Rails 4
requires Ruby 1.9.3, and rails4_upgrade uses 1.9-only syntax and semantics.
Add to Gemfile:
gem 'rails4_upgrade', github: 'alindeman/rails4_upgrade'Run rake rails4:check:
$ rake rails4:check
** GEM COMPATIBILITY CHECK **
+--------------------+----------------------+
| Dependency Path | Rails Requirement |
+--------------------+----------------------+
| draper 0.18.0 | actionpack ~> 3.2 |
| draper 0.18.0 | activesupport ~> 3.2 |
| simple_form 2.0.4 | actionpack ~> 3.0 |
| simple_form 2.0.4 | activemodel ~> 3.0 |
+--------------------+----------------------+
I'm open to accepting pull requests that improve the functionality of the gem.
If there's an upgrade procedure that can be automated or semi-automated, let's discuss it. Open an issue.
Ideas:
- Recommending versions of gems that may be compatible with Rails 4
- Removing deprecated configuration options
- Adding newly required or recommended configuration options