From c7babb62fe7418d23f7ae66c85a1519817c9b915 Mon Sep 17 00:00:00 2001
From: Jonathan Hyman <jonathan.hyman@post.harvard.edu>
Date: Wed, 24 Jun 2015 16:38:17 -0400
Subject: [PATCH] Generate the asset hash for a file based on its built
 contents, not the static contents from sprockets.

---
 lib/tasks/requirejs-rails_tasks.rake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/tasks/requirejs-rails_tasks.rake b/lib/tasks/requirejs-rails_tasks.rake
index d4296a59..a8691f41 100644
--- a/lib/tasks/requirejs-rails_tasks.rake
+++ b/lib/tasks/requirejs-rails_tasks.rake
@@ -160,7 +160,11 @@ OS X Homebrew users can use 'brew install node'.
         asset = requirejs.env.find_asset(asset_name)
 
         built_asset_path = requirejs.config.build_dir.join(asset_name)
-        digest_name = asset.digest_path
+
+        file_digest = ::Rails.application.assets.file_digest(built_asset_path)
+        hex_digest = Sprockets::DigestUtils.pack_hexdigest(file_digest)
+        digest_name = asset.logical_path.sub(/\.(\w+)$/) { |ext| "-#{hex_digest}#{ext}" }
+
         digest_asset_path = requirejs.config.target_dir + digest_name
 
         # Ensure that the parent directory `a/b` for modules with names like `a/b/c` exist.