private void DownLoad(AutoUpdaterInfo info, bool redownLoad = false)
{
if (string.IsNullOrEmpty(info.DownloadUrl))
{
OnCompletedCallBack("下载文件无效", false);
return;
}
var filename = Path.GetFileName(info.DownloadUrl);
var downloadFolder = CommonUnitity.GetDownLoadFolder();
var fullname = Path.Combine(downloadFolder, filename);
var subFolderList = Directory.EnumerateDirectories(downloadFolder);
foreach (var tempFolder in subFolderList)
{
Directory.Delete(tempFolder, true);
}
if (File.Exists(fullname))
{
//如果已经存在该文件，且文件版本号和新文件版本号一致，那么直接跳过
if (redownLoad)
{
//要求重新下载
File.Delete(fullname);
CommonUnitity.ClearFolder(downloadFolder);
}
else
{
//如果文件已经存在
if (DownloadProgressChanged != null)
{
DownloadProgressChanged(1, 1, 100);
}
Do(new DownloadUserToken()
{
Client = _webClient, FileName = fullname, ExcuteFileName = info.ExcuteFileName
});
return;
}
}
_webClient.DownloadFileCompleted += OnDownloadFileCompleted;
_webClient.DownloadProgressChanged += OnDownloadProgressChanged;
DownloadUserToken userToken = new DownloadUserToken()
{
Client = _webClient, FileName = fullname, ExcuteFileName = info.ExcuteFileName
};
_webClient.DownloadFileAsync(new Uri(info.DownloadUrl), fullname, userToken);
}
private void Do(DownloadUserToken args)
{
bool hasBackup = false;
var baseDirectory = CommonUnitity.GetSystemBinUrl();
var backupdir = CommonUnitity.GetBackupFolder();
try
{
if (!File.Exists(args.FileName))
{
_logger.Error("升级错误" + args.FileName);
OnCompletedCallBack("下载文件失败", false);
return;
}
//解压
var unzipFolder = CommonUnitity.GetUnzipFolder(args.FileName);
var autoupdaterFiles = Unzip(unzipFolder, args.FileName);
var downloadBinDirectory = GetDownloadBinDirectory(autoupdaterFiles);
CommonUnitity.ClearFolder(backupdir);
hasBackup = true;
//备份待升级文档
Backup(backupdir, baseDirectory, downloadBinDirectory, autoupdaterFiles);
//更新指定文件
MoveToBaseDirectory(baseDirectory, downloadBinDirectory, autoupdaterFiles);
var info = AutoUpdaterInfo.Current;
info.Version = info.NewVersion;
info.Save();
//升级成功
OnCompletedCallBack(string.Empty, true);
Directory.Delete(unzipFolder, true);
}
catch (Exception ex)
{
if (hasBackup)
{
Restore(backupdir, baseDirectory);
}
_logger.Error(ex, "升级错误" + args.FileName);
OnCompletedCallBack(ex.Message, false);
return;
}
}
