Unity Build & Patch

MapleRiver

1.Build

配置必要参数
创建AB
创建ABList
压缩AB
文件迁移
打包
包体加固

1.配置项

一些配置相关的内容，包括：打包目标平台、是否需要打AB、是否需要打ABList、AB是否需要压缩等，具体根据项目需要进行添加即可。
此外还有一些打包需要的固定路径，如包体存放路径，AB路径等等可以通过一些常量或是Asset进行配置

2.创建AB

创建AB

3.创建ABList

生成ABList是为了后面我们做Patch做准备，当资源发生更改时，我们需要知道哪些资源更改了，我们需要Patch哪些资源。修改的资源变化有多大，提供给玩家需要更新的资源大小信息等。


public static void GenerateAssetBundleList()
{
    AssetBundleManifest manifest = LoadAssetBundleManifest();
    if (manifest == null)
    {
        Debug.LogError("LoadAssetBundleManifest Failed");
        return;
    }
    var allAssetBundles = manifest.GetAllAssetBundles().ToList();
    allAssetBundles.Add(BuildSetting.Instance.AssetBundleFolder);
    var abList = new AssetBundleList();
    foreach (var abName in allAssetBundles)
    {
        var abPath = GetAssetBundleBuildPath(abName);
        FileInfo fileInfo = new FileInfo(abPath);
        var md5 = StringUtils.GetFileHash(abPath);
        //写入资源名，资源大小，md5等信息
        abList.AddABInfo(abName, fileInfo.Length, md5);
        Debug.Log("Generate AssetBundle MD5: " + abName);
    }
    //serialize AssetBundleList
    var path = GetABListBuildPath();
    abList.Save(path);
    Debug.Log("Generate AssetBundleList Success: " + path);
}

public static void GenerateAssetBundleList()

{

AssetBundleManifest manifest = LoadAssetBundleManifest();

if (manifest == null)

{

Debug.LogError("LoadAssetBundleManifest Failed");

return;

}

var allAssetBundles = manifest.GetAllAssetBundles().ToList();

allAssetBundles.Add(BuildSetting.Instance.AssetBundleFolder);

var abList = new AssetBundleList();

foreach (var abName in allAssetBundles)

{

var abPath = GetAssetBundleBuildPath(abName);

FileInfo fileInfo = new FileInfo(abPath);

var md5 = StringUtils.GetFileHash(abPath);

//写入资源名，资源大小，md5等信息

abList.AddABInfo(abName, fileInfo.Length, md5);

Debug.Log("Generate AssetBundle MD5: " + abName);

}

//serialize AssetBundleList

var path = GetABListBuildPath();

abList.Save(path);

Debug.Log("Generate AssetBundleList Success: " + path);

}

4.AB压缩

为了让我们的包体更小，首包外放的时候资源会使用压缩包，第一次进游戏的时候进行解压缩。后面在更新patch的时候一般就不会再使用压缩AB了。(我只想Patch其中的一个文件，如果打压缩AB还要全下载下来)

//自定义cmd指令执行7z压缩（要注意先安装7z压缩环境哦https://www.7-zip.org/）
var args = "a \"" + path + ".7z\" \"" + path + "/*\" ";
var cmd = "C:/Program Files/7-Zip/7z.exe";

System.Diagnostics.ProcessStartInfo info = new System.Diagnostics.ProcessStartInfo(cmd, args);
info.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
info.UseShellExecute = false;
info.RedirectStandardOutput = true;
System.Diagnostics.Process process = System.Diagnostics.Process.Start(info);
string content = process.StandardOutput.ReadToEnd();
process.WaitForExit();

//自定义cmd指令执行7z压缩（要注意先安装7z压缩环境哦https://www.7-zip.org/）

var args = "a \"" + path + ".7z\" \"" + path + "/*\" ";

var cmd = "C:/Program Files/7-Zip/7z.exe";

System.Diagnostics.ProcessStartInfo info = new System.Diagnostics.ProcessStartInfo(cmd, args);

info.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;

info.UseShellExecute = false;

info.RedirectStandardOutput = true;

System.Diagnostics.Process process = System.Diagnostics.Process.Start(info);

string content = process.StandardOutput.ReadToEnd();

process.WaitForExit();

5.文件迁移

把压缩后的压缩包迁移到StreamingAssets，保证资源打进包内。
这没啥可说的，就是记得io前先创建对应的文件夹路径就可以了，直接使用File.Copy都不用自己开流写入保存。

//搞一个递归创建文件夹的函数
public static void RecursivelyCreateDirectory(string fullDirectoryPath)
{
    if (Directory.Exists(fullDirectoryPath))
        return;
    string text = string.Empty;
    string text2 = fullDirectoryPath;
    List<string> list = new List<string>();
    while (!Directory.Exists(text2))
    {
        if (text2.LastIndexOf(Path.DirectorySeparatorChar) == text2.Length - 1)
        {
            text2 = text2.Substring(0, text2.Length - 1);
        }
        int num = text2.LastIndexOf(Path.DirectorySeparatorChar);
        text = text2.Substring(num + 1, text2.Length - (num + 1));
        list.Add(text);
        text2 = text2.Substring(0, num);
    }
    while (list.Count > 0)
    {
        int num = list.Count - 1;
        text = list[num];
        list.RemoveAt(num);
        text2 = text2 + Path.DirectorySeparatorChar + text;
        Directory.CreateDirectory(text2);
    }
}

//搞一个递归创建文件夹的函数

public static void RecursivelyCreateDirectory(string fullDirectoryPath)

{

if (Directory.Exists(fullDirectoryPath))

return;

string text = string.Empty;

string text2 = fullDirectoryPath;

List<string> list = new List<string>();

while (!Directory.Exists(text2))

{

if (text2.LastIndexOf(Path.DirectorySeparatorChar) == text2.Length - 1)

{

text2 = text2.Substring(0, text2.Length - 1);

}

int num = text2.LastIndexOf(Path.DirectorySeparatorChar);

text = text2.Substring(num + 1, text2.Length - (num + 1));

list.Add(text);

text2 = text2.Substring(0, num);

}

while (list.Count > 0)

{

int num = list.Count - 1;

text = list[num];

list.RemoveAt(num);

text2 = text2 + Path.DirectorySeparatorChar + text;

Directory.CreateDirectory(text2);

}

6.打包

AB都处理完了，接下来就是打apk了。没啥好说的，调一下API就行了。

BuildPipeline.BuildPlayer(EditorBuildSettings.scenes, outputPackage, platform, option);

1	BuildPipeline.BuildPlayer(EditorBuildSettings.scenes, outputPackage, platform, option);

7.加固包体

这就看接入的加固SDK了，SDK一般都有固定的加固流程，只要使用对应平台的指令就可以完成加固了。

2.Patch

Patch的编辑器流程其实和Build类似

创建AB
构建ABList
差异处理
差异AB上传到服务器

其中创建AB和构建ABList其实和Build的流程是完全一样的。
差异处理就是通过对比本地ABList和服务器上的ABList把不同的AB找出来。
然后把这些差异AB上传到服务器就可以拉，记得也要把ABList上传哦~

江枫