private string[] DeleteFiles()
{
FileIndex index = FileIndex.Deserialize(InstallationSettings.InstallationFolder + "/UpdateIndex.dat");
List <string> failedToRemove = new List <string>();
string[] filesSortedByDepth = index.files.OrderByDescending(path => path.Split(new Char[] { '\\', '/' }, StringSplitOptions.RemoveEmptyEntries).Length).ToArray();
foreach (string cur in filesSortedByDepth) //Delete files, deepest first, topmost last.
{
try {
string curFile = InstallationSettings.InstallationFolder + '/' + cur;
System.IO.File.Delete(curFile);
DirectoryInfo subDirInfo = Directory.GetParent(curFile);
if (subDirInfo.GetFiles().Length == 0 && subDirInfo.GetDirectories().Length == 0)
{
subDirInfo.Delete();
}
} catch (Exception) {
failedToRemove.Add(cur);
}
}
System.IO.File.Delete(InstallationSettings.InstallationFolder + "/UpdateIndex.dat");
DirectoryInfo dirInfo = new DirectoryInfo(InstallationSettings.InstallationFolder);
if (dirInfo.GetFiles().Length == 0 && dirInfo.GetDirectories().Length == 0)
{
dirInfo.Delete();
}
return(failedToRemove.ToArray());
}
public void ApplyUpdate(AppInfo appInfo, UpdateInfo info, UpdateHost updateInfoSource)
{
string lockFile = InstallationSettings.InstallationFolder + "/Updater.lock";
if (File.Exists(lockFile))
{
throw new Exception("Could not update: the application folder is already locked by another updater instance.");
}
else
{
File.Create(lockFile).Close();
}
TriggerProgressEvent(0, "Calculating updater tasks");
FileIndex index = FileIndex.Deserialize(InstallationSettings.InstallationFolder + "/UpdateIndex.dat");
UpdateTask[] tasks = GetUpdaterTasks(appInfo, info, updateInfoSource, index);
List <UpdateTask> failedTasks = RunTasks(tasks, true, 10);
TriggerProgressEvent(percentageDone, "Retrying failed tasks");
for (int i = 0; i < failedTasks.Count; i++)
{
UpdateTask task = failedTasks[i];
try {
task.Run();
} catch (WebException ex) {
if (MessageBox.Show("Updater could not download file: " + ex.Message + "\r\n(" + ex.Data["Target"] + ")", "Failed to download file", MessageBoxButtons.RetryCancel, MessageBoxIcon.Error).Equals(DialogResult.Retry))
{
i--; //Retry
}
else
{
Application.Exit();
}
} catch (UnauthorizedAccessException ex) {
if (MessageBox.Show("Updater could access file or folder: " + ex.Message + "\r\n(" + ex.Data["Target"] + ")", "Failed to download file", MessageBoxButtons.RetryCancel, MessageBoxIcon.Error).Equals(DialogResult.Retry))
{
i--; //Retry
}
else
{
Application.Exit();
}
}
}
TriggerProgressEvent(98, "Updating local file index");
index = new FileIndex(index.appID);
index.applicationVersion = info.version;
index.files.AddRange(info.fileChecksums.Keys);
index.Serialize(InstallationSettings.InstallationFolder + "/UpdateIndex.dat");
File.Delete(lockFile);
}
private void StartUpdateCheck()
{
Updater updater = new Updater();
updater.RetrieveAppInfo((appInfo, hostURL) =>
{
BeginInvoke((Action)(() => {
if (appInfo == null)
{
if (MessageBox.Show(this, "Cannot check for updates: No valid update mirrors online. Launch application anyway?", "Failed to check for updates", MessageBoxButtons.YesNo, MessageBoxIcon.Warning).Equals(DialogResult.Yes))
{
Program.LaunchTargetApplication(this);
}
this.Close();
return;
}
if (!File.Exists(InstallationSettings.InstallationFolder + "/UpdateIndex.dat"))
{
if (MessageBox.Show(this, "The installation seems to be corrupt: UpdateIndex.dat is missing. Launch application anyway?", "Failed to check for updates", MessageBoxButtons.YesNo, MessageBoxIcon.Error).Equals(DialogResult.Yes))
{
Program.LaunchTargetApplication(this);
}
this.Close();
return;
}
FileIndex index = FileIndex.Deserialize(InstallationSettings.InstallationFolder + "/UpdateIndex.dat");
if (index.applicationVersion < appInfo.LatestVersion)
{
progressLabel.Text = LauncherLocale.Current.Get("Updater.Main.RetrievingUpdateInfo");
double[] newVersions = GetUpdatedVersions(appInfo, index.applicationVersion, appInfo.LatestVersion);
MetroForm form;
if (newVersions.Length == 1)
{
form = new SingleUpdateDetailsForm(updater, appInfo, hostURL, newVersions[0]);
}
else
{
form = new MultiUpdateDetailsForm(updater, appInfo, hostURL, newVersions);
}
this.Hide();
form.ShowDialog();
}
progressLabel.Text = LauncherLocale.Current.Get("Updater.Main.LaunchApplication");
Program.LaunchTargetApplication(this);
this.Close();
}));
});
}
