chore: edge will now give a warning when failing to load from cache o…

…n startup (#456)

server/src/builder.rs

@@ -52,9 +52,21 @@ async fn hydrate_from_persistent_storage(
     storage: Arc<dyn EdgePersistence>,
 ) {
     let (token_cache, features_cache, engine_cache) = cache;
-    let tokens = storage.load_tokens().await.unwrap_or_default();
-    let features = storage.load_features().await.unwrap_or_default();
-    let refresh_targets = storage.load_refresh_targets().await.unwrap_or_default();
+    let tokens = storage.load_tokens().await.unwrap_or_else(|error| {
+        warn!("Failed to load tokens from cache {error:?}");
+        vec![]
+    });
+    let features = storage.load_features().await.unwrap_or_else(|error| {
+        warn!("Failed to load features from cache {error:?}");
+        Default::default()
+    });
+    let refresh_targets = storage
+        .load_refresh_targets()
+        .await
+        .unwrap_or_else(|error| {
+            warn!("Failed to load refresh targets from cache {error:?}");
+            vec![]
+        });
     for token in tokens {
         tracing::debug!("Hydrating tokens {token:?}");
         token_cache.insert(token.token.clone(), token);
@@ -134,8 +146,12 @@ async fn get_data_source(args: &EdgeArgs) -> Option<Arc<dyn EdgePersistence>> {
                 RedisPersister::new_with_cluster(urls).expect("Failed to connect to redis cluster")
             }),
         }
-        .unwrap_or_else(|| panic!("Could not build a redis persister from redis_args {:?}",
-                args.redis));
+        .unwrap_or_else(|| {
+            panic!(
+                "Could not build a redis persister from redis_args {:?}",
+                args.redis
+            )
+        });
         return Some(Arc::new(redis_persister));
     }