files produced by asset:precompile don't match urls generated by stylesheet_link_tag (missing digest) in minimal rails 4 site

Question

I\'m using Ruby 2.0.0-p247 and Rails 4.0.0

If I make a minimal Rails 4 site like this:

rails new minimal
cd minimal
rails g         


        

Answer 1

I was able to resolve asset links not including the digest by bumping the asset version number.

     # Version of your assets, change this if you want to expire all your assets
-    config.assets.version = '1.0'
+    config.assets.version = '2.0'

You'll find this either in config/application.rb if you're upgrading or in the newer location config/initializers/asset.rb

Answer 2

While I was writing up this question I came across this blog post which suggests it is a bug.

http://railsblog.kieser.net/2013/08/rails4-phusion-passenger-asset-pipeline.html

Of the various suggestions, just setting the compilation fallback true...

config.assets.compile = true

seems to be sufficient to kick Rails in to generating appropriately digested URLs:

<link data-turbolinks-track="true" href="/assets/application-f1a14051f17824976271b9c0460232f0.css" media="all" rel="stylesheet" />
<script data-turbolinks-track="true" src="/assets/application-723d1be6cc741a3aabb1cec24276d681.js"></script>

The other suggestion, explicitly setting RAILS_ENV and RAILS_GROUPS seemed to produce different digest strings on the precompiled files, but they always seem to match up with the generated HTML regardless.