Assets are distinct based on :path and :bundle

Fixes #10

src/optimus/strategies.clj

@@ -19,11 +19,11 @@
   asset-1)
 
 (defn- guard-against-duplicate-assets [assets]
-  (let [path->assets (group-by :path assets)]
+  (let [pb->assets (group-by (juxt :path :bundle) assets)]
     (->> assets
-         (map :path)
+         (map (juxt :path :bundle))
          (distinct)
-         (map path->assets)
+         (map pb->assets)
          (map #(reduce collapse-equal-assets %)))))
 
 (defn serve-live-assets [app get-assets optimize options]

test/optimus/strategies_test.clj

@@ -88,6 +88,16 @@
  (let [app (serve-frozen-assets return-request get-assets dont-optimize {})]
    (app {}) => {:optimus-assets [{:path "/code.js" :contents "abc"}]}))
 
+(fact
+ "Assets are allowed to be duplicated if they belong to different bundles."
+
+ (defn get-assets [] [{:path "/code.js" :contents "abc" :bundle "app1.js"}
+                      {:path "/code.js" :contents "abc" :bundle "app2.js"}])
+
+ (let [app (serve-live-assets return-request get-assets dont-optimize {})]
+   (app {}) => {:optimus-assets [{:path "/code.js" :contents "abc" :bundle "app1.js"}
+                                 {:path "/code.js" :contents "abc" :bundle "app2.js"}]}))
+
 (fact
  "Duplicate assets that are not equal are not tolerated."