internal static ProgressTracker StartProgress(ProgressTracker parentTracker, string message, Request request)
{
if (request == null)
{
return null;
}
// if parent tracker is null, use 0 for parent id, else use the progressid of parent tracker
return new ProgressTracker(request.StartProgress(parentTracker == null ? 0 : parentTracker.ProgressID, message));
}
private static bool ExecuteUninstallCommand(string fastPackageReference, Request request, string file, string args)
{
Timer timer = null;
object timerLock = new object();
bool cleanUp = false;
ProgressTracker tracker = new ProgressTracker(request.StartProgress(0, Resources.Messages.Uninstalling));
double percent = tracker.StartPercent;
Action cleanUpAction = () => {
lock (timerLock)
{
// check whether clean up is already done before or not
if (!cleanUp)
{
try
{
if (timer != null)
{
// stop timer
timer.Change(Timeout.Infinite, Timeout.Infinite);
timer.Dispose();
timer = null;
}
}
catch
{
}
cleanUp = true;
}
}
};
var start = new ProcessStartInfo
{
FileName = file,
Arguments = args,
UseShellExecute = false,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
//LoadUserProfile = true,
};
using (var proc = Process.Start(start))
{
// percent between startProgress and endProgress
var progressPercent = tracker.ConvertPercentToProgress(percent += 0.01);
request.Progress(tracker.ProgressID, (int)progressPercent, Resources.Messages.RunningCommand, file);
if (proc == null)
{
return false;
}
timer = new Timer(_ => {
percent += 0.025;
if (progressPercent < 90)
{
request.Progress(tracker.ProgressID, (int) progressPercent, Resources.Messages.RunningCommand, file);
}
if (request.IsCanceled)
{
cleanUpAction();
}
}, null, 0, 3000);
proc.WaitForExit();
if (proc.ExitCode != 0)
{
request.Error(ErrorCategory.InvalidOperation, fastPackageReference, Resources.Messages.UninstallFailed, file, proc.StandardError.ReadToEnd());
request.CompleteProgress(tracker.ProgressID, false);
return false;
}
request.CompleteProgress(tracker.ProgressID, true);
return true;
}
}