private static ReturnValue Upgrade(string appPath, string appName, string version)
{
return(ReturnValue.Wrap(() =>
{
var sourceFolder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, appName, version);
if (!Directory.Exists(sourceFolder))
{
throw new DirectoryNotFoundException(string.Format("source app folder '{0}' not found", sourceFolder));
}
if (!Directory.Exists(appPath))
{
throw new DirectoryNotFoundException(string.Format("target app folder '{0}' not found", sourceFolder));
}
var attempt = 1;
var success = false;
while (attempt <= MaxAttempts && (!success))
{
Log(string.Format("Upgrade attempt #{0}..", attempt));
success = AttemptUpgrade(sourceFolder, appPath);
Thread.Sleep(1000);
attempt++;
}
if (attempt > MaxAttempts)
{
ReturnValue.Abort(string.Format("Unable to Upgrade after {0} attempts.", MaxAttempts));
}
Log("Upgrade sucessful.");
}, string.Format("Upgrading {0} to {1}, {2}", appPath, appName, version)));
}