private void TimerCallback(object unusedState)
{
string errorMessage = null;
using (ITracer activity = this.tracer.StartActivity("Checking for product upgrades.", EventLevel.Informational))
{
try
{
ProductUpgraderInfo info = new ProductUpgraderInfo(
this.tracer,
this.fileSystem);
// The upgrade check always goes against GitHub
GitHubUpgrader productUpgrader = GitHubUpgrader.Create(
this.tracer,
this.fileSystem,
dryRun: false,
noVerify: false,
error: out errorMessage);
if (productUpgrader == null)
{
string message = string.Format(
"{0}.{1}: GitHubUpgrader.Create failed to create upgrader: {2}",
nameof(ProductUpgradeTimer),
nameof(this.TimerCallback),
errorMessage);
activity.RelatedWarning(
metadata: new EventMetadata(),
message: message,
keywords: Keywords.Telemetry);
info.RecordHighestAvailableVersion(highestAvailableVersion: null);
return;
}
InstallerPreRunChecker prerunChecker = new InstallerPreRunChecker(this.tracer, string.Empty);
if (!prerunChecker.TryRunPreUpgradeChecks(out errorMessage))
{
string message = string.Format(
"{0}.{1}: PreUpgradeChecks failed with: {2}",
nameof(ProductUpgradeTimer),
nameof(this.TimerCallback),
errorMessage);
activity.RelatedWarning(
metadata: new EventMetadata(),
message: message,
keywords: Keywords.Telemetry);
info.RecordHighestAvailableVersion(highestAvailableVersion: null);
return;
}
if (!productUpgrader.UpgradeAllowed(out errorMessage))
{
errorMessage = errorMessage ??
$"{nameof(ProductUpgradeTimer)}.{nameof(this.TimerCallback)}: Upgrade is not allowed, but no reason provided.";
activity.RelatedWarning(
metadata: new EventMetadata(),
message: errorMessage,
keywords: Keywords.Telemetry);
info.RecordHighestAvailableVersion(highestAvailableVersion: null);
return;
}
if (!this.TryQueryForNewerVersion(
activity,
productUpgrader,
out Version newerVersion,
out errorMessage))
{
string message = string.Format(
"{0}.{1}: TryQueryForNewerVersion failed with: {2}",
nameof(ProductUpgradeTimer),
nameof(this.TimerCallback),
errorMessage);
activity.RelatedWarning(
metadata: new EventMetadata(),
message: message,
keywords: Keywords.Telemetry);
info.RecordHighestAvailableVersion(highestAvailableVersion: null);
return;
}
info.RecordHighestAvailableVersion(highestAvailableVersion: newerVersion);
}
catch (Exception ex) when(
ex is IOException ||
ex is UnauthorizedAccessException ||
ex is NotSupportedException)
{
this.tracer.RelatedWarning(
CreateEventMetadata(ex),
"Exception encountered recording highest available version");
}
catch (Exception ex)
{
this.tracer.RelatedError(
CreateEventMetadata(ex),
"Unhanlded exception encountered recording highest available version");
Environment.Exit((int)ReturnCode.GenericError);
}
}
}
