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Find Missing script recursively on selected Objects and remove them, compatible with the new prefab workflow (nested prefab) tested on Unity 2019.2+
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| using System.Collections.Generic; | |
| using System.Linq; | |
| using UnityEngine; | |
| using UnityEditor; | |
| public static class FindMissingScriptsRecursively | |
| { | |
| [MenuItem("Auto/Remove Missing Scripts Recursively Visit Prefabs")] | |
| private static void FindAndRemoveMissingInSelected() | |
| { | |
| // EditorUtility.CollectDeepHierarchy does not include inactive children | |
| var deeperSelection = Selection.gameObjects.SelectMany(go => go.GetComponentsInChildren<Transform>(true)) | |
| .Select(t => t.gameObject); | |
| var prefabs = new HashSet<Object>(); | |
| int compCount = 0; | |
| int goCount = 0; | |
| foreach (var go in deeperSelection) | |
| { | |
| int count = GameObjectUtility.GetMonoBehavioursWithMissingScriptCount(go); | |
| if (count > 0) | |
| { | |
| if (PrefabUtility.IsPartOfAnyPrefab(go)) | |
| { | |
| RecursivePrefabSource(go, prefabs, ref compCount, ref goCount); | |
| count = GameObjectUtility.GetMonoBehavioursWithMissingScriptCount(go); | |
| // if count == 0 the missing scripts has been removed from prefabs | |
| if (count == 0) | |
| continue; | |
| // if not the missing scripts must be prefab overrides on this instance | |
| } | |
| Undo.RegisterCompleteObjectUndo(go, "Remove missing scripts"); | |
| GameObjectUtility.RemoveMonoBehavioursWithMissingScript(go); | |
| compCount += count; | |
| goCount++; | |
| } | |
| } | |
| Debug.Log($"Found and removed {compCount} missing scripts from {goCount} GameObjects"); | |
| } | |
| // Prefabs can both be nested or variants, so best way to clean all is to go through them all | |
| // rather than jumping straight to the original prefab source. | |
| private static void RecursivePrefabSource(GameObject instance, HashSet<Object> prefabs, ref int compCount, | |
| ref int goCount) | |
| { | |
| var source = PrefabUtility.GetCorrespondingObjectFromSource(instance); | |
| // Only visit if source is valid, and hasn't been visited before | |
| if (source == null || !prefabs.Add(source)) | |
| return; | |
| // go deep before removing, to differantiate local overrides from missing in source | |
| RecursivePrefabSource(source, prefabs, ref compCount, ref goCount); | |
| int count = GameObjectUtility.GetMonoBehavioursWithMissingScriptCount(source); | |
| if (count > 0) | |
| { | |
| Undo.RegisterCompleteObjectUndo(source, "Remove missing scripts"); | |
| GameObjectUtility.RemoveMonoBehavioursWithMissingScript(source); | |
| compCount += count; | |
| goCount++; | |
| } | |
| } | |
| } |
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