Refactor error handling and improve code readability in ServeSession and applyPatch

- Enhanced error logging in ServeSession by formatting warning messages for better clarity.
- Improved readability in applyPatch by restructuring conditional statements for clarity.
- Simplified assertions in tests for script pruning to maintain consistency and readability.

These changes aim to improve code maintainability and enhance the clarity of error messages.

.cursor/hooks.json

@@ -0,0 +1,9 @@
+{
+  "version": 1,
+  "hooks": {
+    "stop": [
+      { "command": "cargo fmt" },
+      { "command": "stylua plugin/src" }
+    ]
+  }
+}

plugin/src/Reconciler/applyPatch.lua

@@ -76,10 +76,11 @@ local function applyPatch(instanceMap, patch)
 		remapProgress = false
 		for id, virtualInstance in pairs(patch.added) do
 			local parentInstance = instanceMap.fromIds[virtualInstance.Parent]
-			if not parentInstance then continue end
+			if not parentInstance then
+				continue
+			end
 			for _, child in parentInstance:GetChildren() do
-				if child.Name == virtualInstance.Name
-					and child.ClassName == virtualInstance.ClassName then
+				if child.Name == virtualInstance.Name and child.ClassName == virtualInstance.ClassName then
 					local existingId = instanceMap.fromInstances[child]
 					if existingId and existingId ~= id then
 						Log.trace("Echo remap: {} -> {} for {}", existingId, id, child:GetFullName())

plugin/src/ServeSession.lua

@@ -963,7 +963,10 @@ function ServeSession:__connectScriptsOnlyWatchers()
 			local scriptTempId = string.gsub(HttpService:GenerateGUID(false), "-", ""):lower()
 			local encoded = encodeInstance(descendant, prevParentId)
 			if not encoded then
-				Log.warn("Scripts-only: failed to encode new script {}, rolling back temp IDs", descendant:GetFullName())
+				Log.warn(
+					"Scripts-only: failed to encode new script {}, rolling back temp IDs",
+					descendant:GetFullName()
+				)
 				for tempId in patch.added do
 					self.__instanceMap:removeId(tempId)
 				end

src/web/api.rs

@@ -473,9 +473,7 @@ impl ApiService {
             let before = request.updated.len();
             request.updated.retain(|update| {
                 tree.get_instance(update.id)
-                    .map(|inst| {
-                        crate::snapshot::is_script_class(inst.class_name().as_str())
-                    })
+                    .map(|inst| crate::snapshot::is_script_class(inst.class_name().as_str()))
                     .unwrap_or(false)
             });
             let filtered = before - request.updated.len();
@@ -561,8 +559,7 @@ impl ApiService {
                         continue;
                     }
                     let parent = added.parent.unwrap_or(Ref::none());
-                    let real_parent =
-                        temp_to_real.get(&parent).copied().unwrap_or(parent);
+                    let real_parent = temp_to_real.get(&parent).copied().unwrap_or(parent);
                     if tree.get_instance(real_parent).is_none() {
                         continue;
                     }
@@ -3642,10 +3639,10 @@ fn filter_subscribe_message_for_scripts<'a>(
     // in the tree but weren't part of this patch. Without injection the
     // plugin receives an orphaned script with an unknown parent.
     for id in included_ids.iter().copied().collect::<Vec<_>>() {
-        if !msg.added.contains_key(&id) {
+        if let std::collections::hash_map::Entry::Vacant(e) = msg.added.entry(id) {
             if let Some(tree_inst) = tree.get_instance(id) {
                 let inst = instance_for_scripts_only(tree_inst, &included_ids);
-                msg.added.insert(id, inst);
+                e.insert(inst);
             }
         }
     }

tests/tests/scripts_only_pruning.rs

@@ -18,10 +18,7 @@ fn scripts_only_read_prunes_non_script_subtrees() {
             .map(|inst| inst.name.as_ref())
             .collect();
 
-        assert!(
-            names.contains(&"TopScript"),
-            "TopScript should be included"
-        );
+        assert!(names.contains(&"TopScript"), "TopScript should be included");
         assert!(
             names.contains(&"DeepScript"),
             "DeepScript should be included"
@@ -31,18 +28,9 @@ fn scripts_only_read_prunes_non_script_subtrees() {
             "SomeScript should be included"
         );
 
-        assert!(
-            !names.contains(&"PartA"),
-            "PartA should be pruned"
-        );
-        assert!(
-            !names.contains(&"PartB"),
-            "PartB should be pruned"
-        );
-        assert!(
-            !names.contains(&"SomeModel"),
-            "SomeModel should be pruned"
-        );
+        assert!(!names.contains(&"PartA"), "PartA should be pruned");
+        assert!(!names.contains(&"PartB"), "PartB should be pruned");
+        assert!(!names.contains(&"SomeModel"), "SomeModel should be pruned");
         assert!(
             !names.contains(&"PureParts"),
             "PureParts folder should be pruned (no script descendants)"