public int Run(string[] args)
{
AppDomain.CurrentDomain.UnhandledException += (_, e) => ReportError(e.ExceptionObject.ToString());
try
{
var targetAssembly = TargetAssembly.Resolve();
try
{
// Hot path: attempt to run the target first without any checks
return(targetAssembly.Run(args));
}
// Possible exception causes:
// - .NET host not found (DirectoryNotFoundException)
// - .NET host failed to initialize (ApplicationException)
catch
{
// Check for and install missing prerequisites
var missingPrerequisites = targetAssembly.GetMissingPrerequisites();
if (missingPrerequisites.Any())
{
var isInstallationSuccessful = InstallPrerequisites(targetAssembly, missingPrerequisites);
// User canceled installation or reboot is required
if (!isInstallationSuccessful)
{
return(0xB007);
}
// Reset environment to update PATH and other variables
// that may have been changed by the installation process.
EnvironmentEx.RefreshEnvironmentVariables();
}
// Attempt to run the target again, this time without ignoring exceptions
return(targetAssembly.Run(args));
}
}
catch (Exception ex)
{
ReportError(ex.ToString());
return(0xDEAD);
}
}