fix: CI

Author: MarioRodrigues10

lib/cesium_link/links.ex

@@ -64,17 +64,27 @@ defmodule CesiumLink.Links do
 
   """
   def list_unarchived_links_by_index do
-    case CesiumLink.Standalone.get("links") do
-      nil ->
+    case safe_get_from_redis("links") do
+      {:ok, nil} ->
         links = list_unarchived_links_by_index_from_db()
         CesiumLink.Standalone.put("links", links)
         links
 
-      links ->
+      {:ok, links} ->
         links
+
+      {:error, _reason} ->
+        list_unarchived_links_by_index_from_db()
     end
   end
 
+  defp safe_get_from_redis(key) do
+      {:ok, CesiumLink.Standalone.get(key)}
+    rescue
+      exception ->
+        {:error, exception}
+  end
+
   def list_unarchived_links_by_index_from_db do
     Repo.all(from l in Link, where: l.archived == false, order_by: [asc: l.index])
   end

lib/cesium_link/redis_cache.ex

@@ -1,4 +1,7 @@
 defmodule CesiumLink.Standalone do
+  @moduledoc """
+  Standalone redis cache.
+  """
   use Nebulex.Cache,
     otp_app: :safira,
     adapter: NebulexRedisAdapter