Disable link to the storage page if it doesn't exist

Otherwise, it returns an 404 error.

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

bin/dashboard

@@ -116,12 +116,20 @@ def render(packaging_data, storage_data, destdir):
     env = jinja2.Environment(
         loader=jinja2.FileSystemLoader("templates/"), autoescape=True
     )
+
+    if packaging_data is not None and storage_data is not None:
+        both_data = True
+    else:
+        both_data = False
+
     for html, data in ("index", packaging_data), ("storage", storage_data):
         if data is None:
             continue
 
         logging.debug(f"Generating {destdir}/{html}.html")
-        rendered = env.get_template(f"{html}.html.jinja2").render(**data)
+        rendered = env.get_template(f"{html}.html.jinja2").render(
+            **data, both_data=both_data
+        )
         with open(destdir / f"{html}.html", "w") as html_file:
             html_file.write(rendered)
 

templates/base.html.jinja2

@@ -37,7 +37,7 @@
         <div>
           <a href="index.html" class="text-muted">Packages</a>
           <span>●</span>
-          <a href="storage.html" class="text-muted">Storage Usage</a>
+          <a href="storage.html" class="text-muted {{'btn-link disabled' if not both_data }}">Storage Usage</a>
         </div>
       </div>