UnityAssetXrefs

Description

These MenuItems on the Assets menu allow you to list and automatically select all of the reverse dependencies of the currently selected Asset. It also includes a "Select All Missing refs" command which will list and select all Assets which have a "Missing" object reference somewhere in them.

Once you try this, you will need it.

by Matt "Trip" Maker, Monstrous Company :: http://monstro.us

UnityAssetXrefs.cs

<csharp> using UnityEngine; using UnityEditor; using System.Collections; using System.Collections.Generic; using System.Linq; using System.IO;

/// <summary> /// Right-click on an asset, choose "What objects use this?" or "What objects in scene uses this?" /// also, "Select All Missing refs" will point out every asset which has "Missing" object references in it. /// /// by Matt "Trip" Maker, Monstrous Company :: http://monstro.us /// /// from http://unifycommunity.com/wiki/index.php?title=UnityAssetXrefs /// /// </summary> public class UnityAssetXrefs {

public static bool ADependsOnB(Object obj, Object selectedObj) { if (selectedObj == null) return false; //optionally, exclude self. if (selectedObj == obj) return false;

Object[] dependencies = EditorUtility.CollectDependencies(new Object[1]{obj}); if (dependencies.Length < 2) return false; // if there's only one, it's us. //Debug.Log(obj.name + " has " + dependencies.Length + " dependencies", obj);

foreach (UnityEngine.Object dep in dependencies) if (dep && (dep == selectedObj)) return true; return false; }

[MenuItem("Assets/What objects in scene use this?", false, 20)]

   public static void SelectSceneUsesOfAsset() {

Object cur = Selection.activeObject; //optionally tell the user what's going on Object[] sceneObjects = Object.FindSceneObjectsOfType(typeof(Object)); Debug.Log("You have asked which of " + sceneObjects.Length + " assets make use of " + cur.name + ", a " + cur.GetType().ToString() + ".", cur);

List<Object> results = CollectReverseDependenciesInCurrentScene(cur); //TODO get only main assets of above Debug.Log(results.Count() + " uses in scene found for this asset.", cur); //printAssetPaths(results); foreach(Object result in results) Debug.Log(result.name + " / " + EditorUtility.GetPrefabParent(result).GetType().ToString(), result); setSelection(results); } public static List<Object> CollectReverseDependenciesInCurrentScene(Object b) { Object[] sceneObjects = Object.FindSceneObjectsOfType(typeof(Object)); return sceneObjects.Where(a => ADependsOnB(a,b)).ToList(); }

[MenuItem("Assets/What objects use this?", false, 20)]

   public static void SelectUsesOfAsset() {

if (Selection.objects.Length != 1) { Debug.LogWarning("Please select just one asset"); return; } Object cur = Selection.activeObject; float startTime = Time.realtimeSinceStartup; List<Object> results = CollectReverseDependencies(cur); Debug.Log(results.Count() + " reverse dependencies found for this asset in " + (Time.realtimeSinceStartup - startTime).ToString() + " secs.", cur); printAssetPaths(results); setSelection(results); }

public static List<Object> CollectReverseDependencies(Object b) { return allAssets.Where(a => ADependsOnB(a,b)).ToList(); }

public static List<Object> CollectReverseDependencies(Object[] objs) { List<Object> ret = new List<Object>(); foreach (Object obj in objs) ret.AddRange(CollectReverseDependencies(obj)); return ret; }

public static bool hasMissingRef(Object obj) { if (!obj) return false; Object[] dependencies = EditorUtility.CollectDependencies(new Object[1]{obj}); foreach (Object dep in dependencies) if (dep == null) return true; return false; }

[MenuItem("Assets/Select All Missing refs")] public static void SelectMissingRefs() { float startTime = Time.realtimeSinceStartup; List<Object> results = CollectMissingRefs(); Debug.Log(results.Count() + " missing references found in" + (Time.realtimeSinceStartup - startTime).ToString() + " secs."); printAssetPaths(results); setSelection(results); } public static List<Object> CollectMissingRefs() { return allAssets.Where(x => hasMissingRef(x)).ToList(); }

public static void printAssetPaths(List<Object> objs) { foreach (Object obj in objs) Debug.Log(AssetDatabase.GetAssetPath(obj), obj); }

public static void setSelection(List<Object> results) { if (results.Count() > 0) Selection.objects = results.ToArray(); }

// everything below this line would normally be in other libraries I've made, but I've brought these versions of them into here for simplicity public static List<Object> allAssets { get { // get every single one of the files in the Assets folder. List<FileInfo> files = DirSearch(new DirectoryInfo(Application.dataPath), "*.*");

// now make them all into Asset references. List<Object> assetRefs = new List<Object>();

foreach (FileInfo fi in files) { if (fi.Name.StartsWith(".")) continue; // Unity ignores dotfiles. assetRefs.Add(AssetDatabase.LoadMainAssetAtPath(getRelativeAssetPath(fi.FullName))); } return assetRefs; } }

public static string fixSlashes(string s) { const string forwardSlash = "/"; const string backSlash = "\\"; return s.Replace(backSlash, forwardSlash); }

/// given a path to a node in the filesystem, lop off anything above the project Assets folder in the pathname so it can work with UnityEditor's built-in commands public static string getRelativeAssetPath (string pathName) { //dataPath uses forward slashes on all platforms now return fixSlashes(pathName).Replace(Application.dataPath, "Assets"); }

// given a folder and a search filter, return a list of file references // (in the unlikely event you have some filesystem arrangement with recursive "hard links", be aware this may not work out well for you) public static List<FileInfo> DirSearch(DirectoryInfo d, string searchFor) { List<FileInfo> founditems = d.GetFiles(searchFor).ToList(); // Add (by recursing) subdirectory items. DirectoryInfo[] dis = d.GetDirectories(); foreach (DirectoryInfo di in dis) founditems.AddRange(DirSearch(di, searchFor));

return(founditems); }

}

</csharp>