restructure file system

templates/common/macros.html

@@ -0,0 +1,11 @@
+{% macro format_size(size) %}
+    {% if size < 1024 %}
+        {{ size }} B
+    {% elif size < 1024 * 1024 %}
+        {{ (size / 1024)|round(1) }} KB
+    {% elif size < 1024 * 1024 * 1024 %}
+        {{ (size / (1024 * 1024))|round(1) }} MB
+    {% else %}
+        {{ (size / (1024 * 1024 * 1024))|round(1) }} GB
+    {% endif %}
+{% endmacro %}