Always put /+assets in the cache

uitwww/__main__.py

@@ -41,6 +41,23 @@ def run(cache, gunicorn_config, port, public, workers, debug):
     app = uitwww.create_app(cache)
     app.wsgi_app = utils.ReverseProxied(app.wsgi_app)
 
+    src_directory = os.path.dirname(os.path.abspath(__file__))
+
+    # Link static assets to the cache directory, if it's enabled
+    static_dirs = {"static": "+assets"}
+    if cache is not None:
+        if not os.path.exists(cache):
+            os.makedirs(cache)
+
+        for src, dest in static_dirs.items():
+            dest = os.path.join(cache, dest)
+            # The destinationa already exists
+            if os.path.exists(dest):
+                continue
+
+            os.symlink(os.path.join(src_directory, src), dest)
+
+
     host = "127.0.0.1"
     if public:
         host = "0.0.0.0"
@@ -48,7 +65,7 @@ def run(cache, gunicorn_config, port, public, workers, debug):
     # In debug mode, run the flask builtin webserver
     if debug:
         extra_files = [
-            os.path.join(os.path.dirname(__file__), "navbar.json"),
+            os.path.join(src_directory, "navbar.json"),
         ]
 
         app.run(debug=True, port=port, host=host, extra_files=extra_files)