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Upgraded to Rails 3.1.rc6

EDIT: I confirm it’s fixed in 3.1.0-stable, and this patch is not compatible with the stable version.

This night I upgraded my main app of the moment to Rails 3.1.rc6. I followed this awesome post and everything went fine. I had to fix one or two tests, and now I have to think about what goes to the asset pipeline or not, but everything works fine!

One little gotcha with this version though, Sprockets outputs a lot (and I mean a LOT) of deprecation warnings because of this: https://github.com/rails/rails/issues/2598

The interesting part of this patch can easily be backported in an initializer until 3.1-stable is released. Let’s put it in config/initializers/sprockets_warnings_silencer.rb :

require 'sprockets/helpers/rails_helper'

module Helpers
  module RailsHelper
    class AssetPaths
      def digest_for(logical_path)
        if asset = asset_environment[logical_path]
          return asset.digest_path
        end

        logical_path
      end

      def rewrite_asset_path(source, dir)
        if source[0] == ?/
          source
        else
          source = digest_for(source) if performing_caching?
          source = File.join(dir, source)
          source = "/#{url}" unless source =~ /^\//
          source
        end
      end
    end
  end
end

Now let’s explore all the awesome features of Rails 3.1 ! (and first split my bloated CSS and Javascript files)