{"category": "Unity Engine/Editor/Extensions", "keywords": "Unity, Editor, GameObject, Missing, Script"} Log GameObjects with missing scripts in loaded scenes, remove missing scripts from selected GameObjects recursively in the Unity Editor.

MissingScriptTool.cs

public static class MissingScriptTool
{
    [MenuItem("Tools/Bamboo/GameObject/Log GameObjects with Missing Script in Loaded Scenes")]
    public static void LogGameObjectsWithMissingScriptInLoadedScenes()
    {
        var missingScriptCount = 0;
        var sceneCount = SceneManager.loadedSceneCount;
        for (var i = 0; i < sceneCount; i++)
        {
            var scene = SceneManager.GetSceneAt(i);
            var rootGameObjects = scene.GetRootGameObjects();
            foreach (var rootGameObject in rootGameObjects)
            {
                missingScriptCount += LogMissingScriptsOnGameObjectRecursively(rootGameObject);
            }
        }

        Debug.Log($"Found {missingScriptCount} missing script(s) in loaded scene(s).");
    }

    public static int LogMissingScriptsOnGameObjectRecursively(GameObject rootGameObject)
    {
        var missingScriptCount = GameObjectUtility.GetMonoBehavioursWithMissingScriptCount(rootGameObject);
        if (missingScriptCount > 0)
        {
            Debug.Log($"Found {missingScriptCount} missing script(s) on {rootGameObject.name}.", rootGameObject);
        }

        foreach (Transform child in rootGameObject.transform)
        {
            missingScriptCount += LogMissingScriptsOnGameObjectRecursively(child.gameObject);
        }

        return missingScriptCount;
    }

    [MenuItem("Tools/Bamboo/GameObject/Remove Missing Scripts From Selected GameObjects Recursively")]
    [MenuItem("GameObject/Bamboo/Remove Missing Scripts Recursively")]
    public static void RemoveMissingScriptsFromSelectedGameObjectsRecursively()
    {
        var selectedGameObjects = Selection.gameObjects;
        foreach (var gameObject in selectedGameObjects)
        {
            Undo.RegisterFullObjectHierarchyUndo(gameObject, nameof(RemoveMissingScriptsRecursively));
            RemoveMissingScriptsRecursively(gameObject);
        }
    }

    [MenuItem("Tools/Bamboo/GameObject/Remove Missing Scripts From Selected GameObjects Recursively", validate = true)]
    [MenuItem("GameObject/Bamboo/Remove Missing Scripts Recursively", validate = true)]
    public static bool RemoveMissingScriptsFromSelectedGameObjectsRecursivelyValidate()
    {
        return Selection.gameObjects.Length > 0;
    }

    public static void RemoveMissingScriptsRecursively(this GameObject gameObject)
    {
        var removedCount = GameObjectUtility.RemoveMonoBehavioursWithMissingScript(gameObject);
        if (removedCount > 0)
        {
            Debug.Log($"Removed {removedCount} missing script(s) from {gameObject.name}.", gameObject);
        }

        foreach (Transform child in gameObject.transform)
        {
            child.gameObject.RemoveMissingScriptsRecursively();
        }
    }
}