public async Task <bool> StartAsync()
{
// 获取远程的Version.txt
string versionUrl = "";
try
{
using (UnityWebRequestAsync webRequestAsync = new UnityWebRequestAsync())
{
versionUrl = GlobalConfigComponent.Instance.GlobalProto.GetUrl() + "StreamingAssets/" + "Version.txt";
var result = await webRequestAsync.DownloadAsync(versionUrl);
if (string.IsNullOrWhiteSpace(result))
{
remoteVersionConfig = MongoHelper.FromJson <VersionConfig>(webRequestAsync.Request.downloadHandler.text);
}
else
{
Log.Error($"url: {versionUrl}; result:{result}");
return(false);
}
}
}
catch (Exception e)
{
Log.Error($"url: {versionUrl} {e}");
return(false);
}
// 获取streaming目录的Version.txt
VersionConfig streamingVersionConfig = null;
string versionPath = Path.Combine(PathHelper.AppResPath4Web, "Version.txt");
using (UnityWebRequestAsync request = new UnityWebRequestAsync())
{
var result = await request.DownloadAsync(versionPath);
if (string.IsNullOrWhiteSpace(result))
{
streamingVersionConfig = MongoHelper.FromJson <VersionConfig>(request.Request.downloadHandler.text);
}
}
// 删掉远程不存在的文件
DirectoryInfo directoryInfo = new DirectoryInfo(PathHelper.AppHotfixResPath);
if (directoryInfo.Exists)
{
FileInfo[] fileInfos = directoryInfo.GetFiles();
foreach (FileInfo fileInfo in fileInfos)
{
if (remoteVersionConfig.FileInfoDict.ContainsKey(fileInfo.Name))
{
continue;
}
if (fileInfo.Name == "Version.txt")
{
continue;
}
fileInfo.Delete();
}
}
else
{
directoryInfo.Create();
}
// 对比MD5
foreach (FileVersionInfo fileVersionInfo in remoteVersionConfig.FileInfoDict.Values)
{
// 对比md5
string localFileMD5 = GetBundleMD5(streamingVersionConfig, fileVersionInfo.File);
if (fileVersionInfo.MD5 == localFileMD5)
{
continue;
}
bundles.Enqueue(fileVersionInfo.File);
TotalSize += fileVersionInfo.Size;
}
return(true);
}
public async Task <bool> DownloadAsync()
{
var result = true;
if (bundles.Count == 0 && downloadingBundle == "")
{
return(result);
}
try
{
while (true)
{
if (bundles.Count == 0)
{
break;
}
downloadingBundle = bundles.Dequeue();
while (true)
{
try
{
using (webRequest = new UnityWebRequestAsync())
{
await webRequest.DownloadAsync(GlobalConfigComponent.Instance.GlobalProto.GetUrl() + "StreamingAssets/" + downloadingBundle);
byte[] data = webRequest.Request.downloadHandler.data;
string path = Path.Combine(PathHelper.AppHotfixResPath, downloadingBundle);
using (FileStream fs = new FileStream(path, FileMode.Create))
{
fs.Write(data, 0, data.Length);
}
}
}
catch (Exception e)
{
Log.Error($"download bundle error: {downloadingBundle}\n{e}");
result = false;
continue;
}
break;
}
downloadedBundles.Add(downloadingBundle);
downloadingBundle = "";
webRequest = null;
}
}
catch (Exception e)
{
Log.Exception(e);
result = false;
}
return(result);
}