private static bool TryInstallAgent()
{
Logger.Info("Installing GCE Agent (version {0}).", ReleaseVersion);
string backupPath = InstallerUtils.GetTempDirName();
try
{
// After version 3.1.0.0, we switched the service name and
// display name for the agent. For back compatibility, we need
// check both service name and display name here.
if (ServiceController.GetServices().Any(x =>
x.ServiceName.Equals(ServiceName, StringComparison.InvariantCultureIgnoreCase) ||
x.DisplayName.Equals(ServiceName, StringComparison.InvariantCultureIgnoreCase)))
{
InstallerUtils.InstallBinaries(
ReleaseVersion,
AgentBinaries,
AgentPath,
backupPath,
service: ServiceName);
}
else
{
InstallerUtils.InstallBinaries(
ReleaseVersion,
AgentBinaries,
AgentPath,
backupPath,
service: null);
InstallerUtils.RegisterService(
string.Format(@"{0}\{1}", AgentPath, AgentBinaries[0]),
ServiceName,
ServiceDisplayName);
using (ServiceController serviceController = new ServiceController(ServiceName))
{
serviceController.Start();
serviceController.WaitForStatus(ServiceControllerStatus.Running);
}
}
}
catch (Exception e)
{
Logger.Error(
"Failed to install GCE Agent (version {0}). Exception: {1}.",
ReleaseVersion,
e.ToString());
return(false);
}
finally
{
InstallerUtils.DeleteDir(backupPath);
}
Logger.Info("GCE Agent (version {0}) installation completed.", ReleaseVersion);
return(true);
}
private static void TryWriteRegistry()
{
try
{
InstallerUtils.WriteUpdateStatsKey(ApplicationId);
InstallerUtils.WriteUpdateKey(ApplicationId, ReleaseVersion, ApplicationName);
}
catch (Exception ex)
{
// This branch should never happen when the installer is
// executed by Omaha client.
// However, if a user run the installer manually and does not
// have access to HKLM, this step will fail.
Logger.Error("Failed to write registry. Exception: {0}.", ex.ToString());
}
}
private static bool TryInstallSysprep()
{
InstallerUtils.GetSources(ReleaseVersion, ComputeEnginePath);
string sourcePath = Path.Combine(ComputeEnginePath, InstallerUtils.SourcePath);
string sysprepSource = Path.Combine(
sourcePath,
string.Format(@"compute-image-windows-{0}", ReleaseVersion),
"gce",
SysprepDirectory);
string[] sysprepFileNames = Directory.GetFiles(sysprepSource).Select(Path.GetFileName).ToArray();
string destPath = Path.Combine(ComputeEnginePath, SysprepDirectory);
string backupPath = InstallerUtils.GetTempDirName();
try
{
InstallerUtils.ReplaceFiles(
sysprepFileNames,
sysprepSource,
destPath,
backupPath,
suffix: string.Empty);
}
catch (Exception e)
{
Logger.Error(
"Failed to install Sysprep (version {0}). Exception: {1}.",
ReleaseVersion,
e.ToString());
InstallerUtils.Rollback(sysprepFileNames, destPath, backupPath, service: null);
return(false);
}
finally
{
InstallerUtils.CleanUp(sysprepFileNames, destPath);
InstallerUtils.DeleteDir(sourcePath);
InstallerUtils.DeleteDir(backupPath);
}
return(true);
}
