Unity3D研究院之查找资源被哪里引用了

Unity3D研究院之查找资源被哪里引用了

https://www.xuanyusong.com/archives/4207

Unity提供了一个方法 AssetDatabase.GetDependencies()，但是它只能查找这个资源引用了那些资源。 但是我想要的是查找某个资源被那些资源引用了，这是两种相反的查找公式。 其实网上也有很多这样的插件了，似乎代码量都太多了。昨天晚上加班时脑洞打开，想到了一个简单的方法。通过GUID全局搜索匹配。。几行代码就能搞定～～

如下图所示，右键随便选择一个资源，点击 Find References。

然后开始匹配资源。

匹配结束后会把匹配到的资源Log出来。以下代码直接放到你的工程里就可以直接用。

C#

using UnityEngine;
using System.Collections;
using UnityEditor;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Collections.Generic;
public class FindReferences
{

    [MenuItem("Assets/Find References", false, 10)]
    static private void Find()
    {
        EditorSettings.serializationMode = SerializationMode.ForceText;
        string path = AssetDatabase.GetAssetPath(Selection.activeObject);
        if (!string.IsNullOrEmpty(path))
        {
            string guid = AssetDatabase.AssetPathToGUID(path);
            List withoutExtensions = new List(){".prefab",".unity",".mat",".asset"};
            string[] files = Directory.GetFiles(Application.dataPath, "*.*", SearchOption.AllDirectories)
                .Where(s => withoutExtensions.Contains(Path.GetExtension(s).ToLower())).ToArray();
            int startIndex = 0;
            EditorApplication.update = delegate()
            {
                string file = files[startIndex];

                bool isCancel = EditorUtility.DisplayCancelableProgressBar("匹配资源中", file, (float)startIndex / (float)files.Length);
                if (Regex.IsMatch(File.ReadAllText(file), guid))
                {
                    Debug.Log(file, AssetDatabase.LoadAssetAtPath<Object>(GetRelativeAssetsPath(file)));
                }
                startIndex++;
                if (isCancel || startIndex >= files.Length)
                {
                    EditorUtility.ClearProgressBar();
                    EditorApplication.update = null;
                    startIndex = 0;
                    Debug.Log("匹配结束");
                }
            };
        }
    }
    [MenuItem("Assets/Find References", true)]
    static private bool VFind()
    {
        string path = AssetDatabase.GetAssetPath(Selection.activeObject);
        return (!string.IsNullOrEmpty(path));
    }
    static private string GetRelativeAssetsPath(string path)
    {
        return "Assets" + Path.GetFullPath(path).Replace(Path.GetFullPath(Application.dataPath), "").Replace('\\', '/');
    }
}

美中不足的地方就是查找速度了。。其实正则表达式匹配的速度还是很快，慢的地方是File.ReadAllText(file) 如果大家有更好的办法，欢迎推荐～

今天我无意发现了一个更快的方法，可惜只能在mac上用。比我上面的方法要快N倍啊，快的丧心病狂啊～欢迎大家用啊～～。。。

https://gist.github.com/jringrose/617d4cba87757591ce28

C#

using UnityEngine;
using System.Collections;
using UnityEditor;
using System.Collections.Generic;
public class FindProject {
#if UNITY_EDITOR_OSX
[MenuItem("Assets/Find References In Project", false, 2000)]
private static void FindProjectReferences()
{
string appDataPath = Application.dataPath;
string output = "";
string selectedAssetPath = AssetDatabase.GetAssetPath (Selection.activeObject);
List<string> references = new List<string>();
string guid = AssetDatabase.AssetPathToGUID (selectedAssetPath);
var psi = new System.Diagnostics.ProcessStartInfo();
psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Maximized;
psi.FileName = "/usr/bin/mdfind";
psi.Arguments = "-onlyin " + Application.dataPath + " " + guid;
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.RedirectStandardError = true;
System.Diagnostics.Process process = new System.Diagnostics.Process();
process.StartInfo = psi;
process.OutputDataReceived += (sender, e) => {
if(string.IsNullOrEmpty(e.Data))
return;
string relativePath = "Assets" + e.Data.Replace(appDataPath, "");
// skip the meta file of whatever we have selected
if(relativePath == selectedAssetPath + ".meta")
return;
references.Add(relativePath);
};
process.ErrorDataReceived += (sender, e) => {
if(string.IsNullOrEmpty(e.Data))
return;
output += "Error: " + e.Data + "\n";
};
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
process.WaitForExit(2000);
foreach(var file in references){
output += file + "\n";
Debug.Log(file, AssetDatabase.LoadMainAssetAtPath(file));
}
Debug.LogWarning(references.Count + " references found for object " + Selection.activeObject.name + "\n\n" + output);
}
#endif