- 最近搞了下 unity 的 AssetBundle（以下简称 AB） 资源冗余检测，并导出一个md文件列出冗余的资源及其被打入进哪几个AB中，方便排除冗余
思路
- 科普下AB资源冗余，当然这里并不会详细说明，只会放个链接 点我 （需要科学上网）
- 可以搜到大部分的文章都是在说一个 侑虎科技 的第三方检测平台，我也去上面检测了下正确检测出来，据说是免费几次后就需要付费。但是资源不加密就上传上去貌似不是很靠谱，资源大了上传也麻烦。所以就自己实现了一个检测。
- 检测的思路也很简单
- 先用主AB生产一个所有 资源及所在AB 的一个 映射表
- 递归遍历打出来的包下的所有的AB，通过
AssetDatabase.GetDependencies获取到 AB中资源名字在 AssetDatabase 中所有的依赖。（此时要求工程下Asset下有正常的资源） - 遍历所有依赖，是否在 映射表 中，如果 不存在 且 超过两次，相同 资源A 被打进了两个AB中，而不是 资源A 打成一个AB，被其他AB依赖进去。
- 最后会收集到这些 不存在 且 超过两次 的资源名及被打进去的AB文件名，导出到一个md文件中，使用md编辑器查看（这里推荐个md客户端叫 Haroopad，平常都用这个写md）
- 检测的思路也很简单
源码 及 使用
- 鉴于源码就一个cs文件，就不上传到git，直接这里贴了，同时也会上传几个测试的 源资源（test_res.rar）、打包出的 有冗余(ABoutput.rar)、无冗余(ABoutput_red.rar) 的资源
使用：
- 分别解压出来，test_res目录放到工程Asset目录下（AssetDatabase才能找到资源，获取依赖），打包出的资源随意放（最好英文路径）
选择打包出的资源的主AB
开始检测，有冗余会导出md文件
资源传送门：unity3d冗余测试资源.rar
源码：
using System; using System.Collections.Generic; using System.Text; using UnityEngine; using UnityEditor; using System.IO; using System.Linq; class ABRedundancyChecker : EditorWindow { class CRedAsset { public CRedAsset() { } public string mName = ""; public string mType = ""; public List<string> mUsers = new List<string>(); } List<Type> mAssetTypeList = new List<Type> { typeof(Material), typeof(Texture2D), typeof(AnimationClip), typeof(AudioClip), typeof(Sprite), typeof(Shader), typeof(Font), typeof(Mesh) }; const string kABRedundencyDir = "/a_ABRedundency"; //输出文件的目录 const string kSearchPattern = "*.assetbundle"; string kResultPath = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + kABRedundencyDir; //const string kABPath = "Assets/test_res/ABoutput_red"; //const string kManiFest = "ABoutput"; bool mIsForQ6 = false; string mABPath = "D:\\svn_q6_app\\win64\\q6-v0.0.63.0\\q6_Data\\StreamingAssets\\resource"; string mMainAb = "resource"; List<string> mAllABFiles = null; Dictionary<string, string> mAssetGenMap = null; Dictionary<string, CRedAsset> mRedAssetMap = null; float mCheckTime = 0f; static ABRedundancyChecker mInstance = null; public static ABRedundancyChecker Ins { get { if (mInstance == null) mInstance = new ABRedundancyChecker(); return mInstance; } } //[MenuItem("AB冗余检测/AB检测")] ////[MenuItem("Q5/Bundle相关/Bundle冗余检测")] //public static void Launch() //{ // ABRedundancyChecker.Ins.StartCheck(); //} // 提供给其他脚本调用的接口 public void StartCheck(string path, string abName) { mABPath = path; mMainAb = abName; mIsForQ6 = true; StartCheck(); } void StartCheck() { EditorUtility.DisplayCancelableProgressBar("AB资源冗余检测中", "资源读取中......", 0f); mCheckTime = UnityEngine.Time.realtimeSinceStartup; if (mAllABFiles == null) mAllABFiles = new List<string>(); if (mAssetGenMap == null) mAssetGenMap = new Dictionary<string, string>(); if (mRedAssetMap == null) mRedAssetMap = new Dictionary<string, CRedAsset>(); if (!GenAssetMap(mABPath, mMainAb)) { EditorUtility.ClearProgressBar(); EditorUtility.DisplayDialog("错误", "请检查是否选择正确的AB资源", "Ok"); return; } GetAllFiles(mAllABFiles, mABPath, kSearchPattern); int startIndex = 0; EditorApplication.CallbackFunction myUpdate = null; myUpdate = () => { string file = mAllABFiles[startIndex]; AssetBundle ab = null; try { ab = CreateABAdapter(file); string[] arr = file.Split('/'); CheckABInfo(ab, arr[arr.Length - 1]); } catch (Exception e) { Debug.LogError("MyError:" + e.StackTrace); } finally { if (ab != null) ab.Unload(true); } bool isCancel = EditorUtility.DisplayCancelableProgressBar("AB资源冗余检测中", file, (float)startIndex / (float)mAllABFiles.Count); startIndex++; if (isCancel || startIndex >= mAllABFiles.Count) { EditorUtility.ClearProgressBar(); if (!isCancel) { CullNotRed(); mCheckTime = UnityEngine.Time.realtimeSinceStartup - mCheckTime; EditorUtility.DisplayDialog("AssetBundle资源冗余检测结果", Export(), "Ok"); } mAllABFiles.Clear(); mAllABFiles = null; mAssetGenMap.Clear(); mAssetGenMap = null; mRedAssetMap.Clear(); mRedAssetMap = null; Resources.UnloadUnusedAssets(); EditorUtility.UnloadUnusedAssetsImmediate(); GC.Collect(); EditorApplication.update -= myUpdate; startIndex = 0; } }; EditorApplication.update += myUpdate; } //适配项目打包（有加密） 或 原生打包 AssetBundle CreateABAdapter(string path) { //if (mIsForQ6) // return UtilCommon.CreateBundleFromFile(path); //else return AssetBundle.LoadFromFile(path); } bool GenAssetMap(string path, string maniFest) { path = path.Replace("\\", "/"); AssetBundle maniFestAb = CreateABAdapter(System.IO.Path.Combine(path, maniFest)); if (maniFestAb == null) return false; AssetBundleManifest manifest = maniFestAb.LoadAsset<AssetBundleManifest>("AssetBundleManifest"); if (manifest == null) return false; string[] allBundles = manifest.GetAllAssetBundles(); maniFestAb.Unload(true); foreach (string abName in allBundles) { string filePath = System.IO.Path.Combine(path, abName); AssetBundle ab = CreateABAdapter(filePath); foreach (string asset in ab.GetAllAssetNames()) { mAssetGenMap.Add(asset.ToLower(), abName); } foreach (string asset in ab.GetAllScenePaths()) { mAssetGenMap.Add(asset.ToLower(), abName); } ab.Unload(true); } if (mAssetGenMap.Count == 0) return false; return true; } void CheckABInfo(AssetBundle ab, string abName) { EditorSettings.serializationMode = SerializationMode.ForceText; string[] names = ab.GetAllAssetNames(); string[] dependencies = AssetDatabase.GetDependencies(names); string[] allDepen = dependencies.Length > 0 ? dependencies : names; string currDep = ""; for (int i = 0; i < allDepen.Length; i++) { currDep = allDepen[i].ToLower(); CalcuDenpend(currDep, abName); //UnityEngine.Object obj = ab.LoadAsset(currDep, typeof(UnityEngine.Object)); //if (obj != null) //{ // Debugger.Log("--- obj type:{0}", GetObjectType(obj)); //} } } //todo: 待加入 类型 void CalcuDenpend(string depName, string abName) { if (depName.EndsWith(".cs")) return; if (!mAssetGenMap.ContainsKey(depName)) //不存在这个ab，记录一下 { if (!mRedAssetMap.ContainsKey(depName)) { CRedAsset ra = new CRedAsset(); ra.mName = depName; ra.mType = "我了个去"; mRedAssetMap.Add(depName, ra); ra.mUsers.Add(abName); } else { CRedAsset ra = mRedAssetMap[depName]; ra.mUsers.Add(abName); } } } // mRedAssetMap 中 CRedAsset 的 mUsers 只有一个的，视为不冗余的资源，直接打到了该 ab 中 void CullNotRed() { List<string> keys = new List<string>(); foreach (var item in mRedAssetMap) { if (item.Value.mUsers.Count == 1) keys.Add(item.Key); } foreach (var value in keys) mRedAssetMap.Remove(value); } List<string> GetAllFiles(List<string> files, string folder, string pattern) { folder = folder.Replace("\\", "/"); System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(folder); foreach (var file in dir.GetFiles(pattern)) { files.Add((System.IO.Path.Combine(folder, file.Name).Replace("\\", "/")).ToLower()); } foreach (var sub in dir.GetDirectories()) { files = GetAllFiles(files, System.IO.Path.Combine(folder, sub.Name), pattern); } return files; } string GetObjectType(UnityEngine.Object obj) { string longType = obj.GetType().ToString(); string[] longTypeArr = longType.Split('.'); return longTypeArr[longTypeArr.Length - 1]; } private string AppendSlash(string path) { if (path == null || path == "") return ""; int idx = path.LastIndexOf('/'); if (idx == -1) return path + "/"; if (idx == path.Length - 1) return path; return path + "/"; } string Export() { if (mRedAssetMap.Count == 0) return "未检查到有资源冗余"; List<CRedAsset> raList = mRedAssetMap.Values.ToList<CRedAsset>(); string currTime = System.DateTime.Now.ToString("yyyyMMdd_HHmmss"); string path = string.Format("{0}/{1}_{2}.md", kResultPath, "ABRedundency", currTime); if (!System.IO.Directory.Exists(kResultPath)) System.IO.Directory.CreateDirectory(kResultPath); using (FileStream fs = File.Create(path)) { StringBuilder sb = new StringBuilder(); sb.Append(string.Format("## 资源总量:{0}，冗余总量:{1}，检测时间:{2}，耗时：{3:F2}s\r\n---\r\n", mAllABFiles.Count, raList.Count, currTime, mCheckTime)); sb.Append("| 排序 | 资源名称 | 资源类型 | AB文件数量 | AB文件名 |\r\n"); sb.Append("|---|---|:---:|:---:|---|\r\n"); CRedAsset ra = null; StringBuilder abNames = new StringBuilder(); raList.Sort((CRedAsset ra1, CRedAsset ra2) => {//排序优先级： ab文件个数 -> 名字 int ret = ra2.mUsers.Count.CompareTo(ra1.mUsers.Count); if (ret == 0) ret = ra1.mName.CompareTo(ra2.mName); return ret; }); for (int i = 0; i < raList.Count; i++) { ra = raList[i]; foreach (var abName in ra.mUsers) abNames.Append(string.Format("**{0}**, ", abName)); //abNames.Append(string.Format("{0}<br>", abName)); //另一种使用换行 sb.Append(string.Format("| {0} | **{1}** | {2} | {3} | {4} |\r\n" , i + 1, ra.mName, ra.mType, ra.mUsers.Count, abNames.ToString())); abNames.Length = 0; } byte[] info = new UTF8Encoding(true).GetBytes(sb.ToString()); fs.Write(info, 0, info.Length); } return "有冗余，导出结果：" + path.Replace("\\", "/"); } //---------------- gui begin ------------ [MenuItem("AB冗余检测/AB检测")] static void Init() { EditorWindow.GetWindow(typeof(ABRedundancyChecker), false, "AB资源冗余检测"); } void Awake() { mInstance = this; } string mSelPath = ""; public void OnGUI() { EditorGUILayout.Space(); EditorGUILayout.LabelField("路径:", EditorStyles.boldLabel); EditorGUILayout.Space(); GUILayout.Label(mSelPath); EditorGUILayout.Space(); if (GUILayout.Button("选择主AB文件")) mSelPath = EditorUtility.OpenFilePanelWithFilters("选择主AB文件", mSelPath, null); EditorGUILayout.Space(); //mIsForQ6 = EditorGUILayout.Toggle("是否Q6(Q6有解密机制)", mIsForQ6); EditorGUILayout.Space(); if (GUILayout.Button("开始检测")) { if (mSelPath == "") EditorUtility.DisplayDialog("错误", "请先 选择主AB文件", "Ok"); else { mSelPath = mSelPath.Replace("\\", "/"); string[] arr = mSelPath.Split('/'); mMainAb = arr[arr.Length - 1]; mABPath = mSelPath.Substring(0, mSelPath.LastIndexOf('/')); StartCheck(); } } } }
作者：yangxuan0261 发表于2017/3/23 14:49:42 原文链接
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