/// <summary>
/// 异步初始化
/// </summary>
public IEnumerator InitializeAsync()
{
MotionLog.Log($"Beginning to initialize patch manager.");
// 加载缓存
_cache = PatchCache.LoadCache();
// 检测沙盒被污染
// 注意：在覆盖安装的时候，会保留沙盒目录里的文件，所以需要强制清空
{
// 如果是首次打开，记录APP版本号
if (PatchHelper.CheckSandboxCacheFileExist() == false)
{
_cache.CacheAppVersion = Application.version;
_cache.SaveCache();
}
else
{
// 每次启动时比对APP版本号是否一致
if (_cache.CacheAppVersion != Application.version)
{
MotionLog.Warning($"Cache is dirty ! Cache version is {_cache.CacheAppVersion}, APP version is {Application.version}");
ClearCache();
// 重新写入最新的APP版本号
_cache.CacheAppVersion = Application.version;
_cache.SaveCache();
}
}
}
// 加载APP内的补丁清单
MotionLog.Log($"Load app patch manifest.");
{
string filePath = AssetPathHelper.MakeStreamingLoadPath(PatchDefine.PatchManifestFileName);
string url = AssetPathHelper.ConvertToWWWPath(filePath);
WebGetRequest downloader = new WebGetRequest(url);
downloader.DownLoad();
yield return(downloader);
if (downloader.HasError())
{
downloader.ReportError();
downloader.Dispose();
throw new System.Exception($"Fatal error : Failed download file : {url}");
}
// 解析补丁清单
string jsonData = downloader.GetText();
_appPatchManifest = PatchManifest.Deserialize(jsonData);
downloader.Dispose();
}
// 加载沙盒内的补丁清单
MotionLog.Log($"Load sandbox patch manifest.");
if (PatchHelper.CheckSandboxPatchManifestFileExist())
{
string filePath = AssetPathHelper.MakePersistentLoadPath(PatchDefine.PatchManifestFileName);
string jsonData = File.ReadAllText(filePath);
_localPatchManifest = PatchManifest.Deserialize(jsonData);
}
else
{
_localPatchManifest = _appPatchManifest;
}
}