HybridCLR 热更新（打AB包）练习_hybirdclr补充元数据

public class ABTool : EditorWindow
{
    static string dllpath = Application.dataPath + "/../" + HybridCLRSettings.Instance.hotUpdateDllCompileOutputRootDir;
    public static List<string> AOTMetaAssemblyNames { get; } = new List<string>()
    {
        "mscorlib.dll",
        "System.dll",
        "System.Core.dll",
 
    };
   [MenuItem("ABTool/生成AB包")]
    public static void CreatAB()
    {
        BuildTarget target = EditorUserBuildSettings.activeBuildTarget;
        //找到对应目录
        DirectoryInfo direction = new DirectoryInfo(dllpath + "/" + target);
        //获取目录下所有文件
        FileInfo[] files = direction.GetFiles("*", SearchOption.AllDirectories);
        //把所有dll文件拷贝到s目录下
        foreach (var item in files)
        {
            if (item.Name.EndsWith(".dll"))
            {
                string dllPath = $"{dllpath + "/" + target}/{item.Name}";
                string dllBytesPath = $"{Application.streamingAssetsPath }/{item.Name}.bytes";
                File.Copy(dllPath, dllBytesPath, true);
                Debug.Log($"hotfix dll{dllPath}->{ dllBytesPath}");
            }
        }
        //预制体
        List<AssetBundleBuild> abs = new List<AssetBundleBuild>();
        //找到预制体目录下的所有目录
        AddABPath(abs, $"{Application.dataPath}/Prefabs/");
        AddABPath(abs, $"{Application.dataPath}/Resources/");
        //构建AB包放到S目录下
        BuildPipeline.BuildAssetBundles(Application.streamingAssetsPath, abs.ToArray(), BuildAssetBundleOptions.None, target);
        //加载补充元数据
        CopyAOTAssembliesToStreamingAssets();
 
        AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
 
    }
    public static void CopyAOTAssembliesToStreamingAssets()
    {
        var target = EditorUserBuildSettings.activeBuildTarget;
        string aotAssembliesSrcDir = SettingsUtil.GetAssembliesPostIl2CppStripDir(target);
        string aotAssembliesDrcDir = Application.streamingAssetsPath;
 
        foreach (var dll in AOTMetaAssemblyNames)
        {
            string srcDllPath = $"{aotAssembliesSrcDir}/{dll}";
            if (!File.Exists(srcDllPath))
            {
                Debug.LogError($"ab中添加AOT补充元数据dll:{srcDllPath}时发生错误，文件不存在。裁剪后的AOT dll在BuildPlayer时才能生成，因此需要你先构建一次游戏App后再打包。");
                continue;
            }
            string dllBytesPath = $"{aotAssembliesDrcDir}/{dll}.bytes";
            File.Copy(srcDllPath, dllBytesPath, true);
            Debug.Log($"[CopyAOTAssembliesToStreamingAssets] copy AOT dll{srcDllPath}->{dllBytesPath}");
        }
    }
 
    public static void AddABPath(List<AssetBundleBuild> abs, string path)
    {
        DirectoryInfo directionInfo = new DirectoryInfo(path);//用于创建 移动..目录
        DirectoryInfo[] directions = directionInfo.GetDirectories();//返回子目录
        //每个目录打一个AB包
        for (int i = 0; i < directions.Length; i++)
        {
            List<string> prefabAssets = new List<string>();
            Debug.Log("打包文件夹：" + directions[i].Name);
            FileInfo[] fileinfos = directions[i].GetFiles("*", SearchOption.AllDirectories);
            Debug.Log("目录下文件夹个数：" + fileinfos.Length);
            foreach (var item in fileinfos)
            {
                if (item.Name.EndsWith(".meta"))
                {
                    continue;
                }
                Debug.Log("打包文件：" + item.Name);
                prefabAssets.Add(item.FullName.Replace("\\", "/"));
                AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
            }
 
            AssetBundleBuild PrefabsAb = new AssetBundleBuild
            {
                assetBundleName = directions[i].Name,
                assetNames = prefabAssets.Select(s => ToReleateAssetPath(s)).ToArray()
            };
            abs.Add(PrefabsAb);
        }
    }
    public static string ToReleateAssetPath(string s)
    {
        string path = s.Substring(s.IndexOf("Assets/"));
        Debug.Log(path);
        return path;
    }
    [MenuItem("ABTool/生成version")]//版本
    public static void MakeVersion()
    {
        string json = AssetDatabase.LoadAssetAtPath<TextAsset>("Assets/Resources/Config/config.json").text;
        Config config = JsonConvert.DeserializeObject<Config>(json);
        List<VersionData> versionDatas = new List<VersionData>();
        //第一条是假数据，用力判断是否需要热更新
        VersionData version = new VersionData();
        //判断使用测试版还是正式版热更新
        config.upid++;
        version.abName = config.isBate ? config.hotPath_Bate : config.hotPath;
        version.len = config.upid;//更新号
        version.md5 = config.version;//版本号
        versionDatas.Add(version);
        //重新写入
        json = JsonConvert.SerializeObject(config);
        File.WriteAllText(Application.dataPath+ "/Resources/Config/config.json", json);
        //找到s目录下所有文件
        string[] files = Directory.GetFiles(Application.streamingAssetsPath, ".", SearchOption.AllDirectories);
 
        foreach (var item in files)
        {
            //取后缀名
            string extensionName = Path.GetExtension(item);
            //排除.meat和.manifest文件
            if (extensionName.Contains("meta") || extensionName.Contains("manifest")) continue;
            Debug.Log(item);
            string abName = item.Replace(Application.dataPath, "Assets");
            abName = abName.Replace("\\", "/");
            string assetBundleName = "";
            assetBundleName = abName.Replace("Assets/StreamingAssets/", string.Empty);
            VersionData versionData = new VersionData();
            versionData.abName = assetBundleName;
            versionData.len = File.ReadAllText(item).Length;
            versionData.md5 = FileMD5(item);
            versionDatas.Add(versionData);
 
        }
        //写入文件
        string versionInfo = JsonConvert.SerializeObject(versionDatas);
        File.WriteAllText(Application.streamingAssetsPath + "/version.txt", versionInfo, Encoding.UTF8);
        AssetDatabase.Refresh();
        Debug.Log("version.txt创建成功");
    }
    static string FileMD5(string filepath)
    {
        FileStream fileStream = new FileStream(filepath, FileMode.Open);
        MD5 mD5 = new MD5CryptoServiceProvider();
        byte[] bytes = mD5.ComputeHash(fileStream);
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i <bytes.Length; i++)
        {
            sb.Append(bytes[i].ToString("x2"));
        }
        return sb.ToString();
    }
 
}