public virtual int Execute(ProcessStartInfo startInfo, CancellationToken cancellationToken, out string stdOut)
{
var outBuffer = new StringBuilder();
cancellationToken.ThrowIfCancellationRequested();
var process = Process.Start(startInfo);
if (process == null)
{
throw PluginException.CreateNotStartedMessage(Path);
}
process.OutputDataReceived += (object o, DataReceivedEventArgs e) => { outBuffer.AppendLine(e.Data); };
// Trace and error information may be written to standard error by the provider.
// It should be logged at the Information level so it will appear if Verbosity >= Normal.
process.ErrorDataReceived += (object o, DataReceivedEventArgs e) =>
{
if (!string.IsNullOrWhiteSpace(e?.Data))
{
// This is a workaround for mono issue: https://github.com/NuGet/Home/issues/4004
if (!process.HasExited)
{
_logger.LogInformation($"{process.ProcessName}: {e.Data}");
}
}
};
process.BeginOutputReadLine();
process.BeginErrorReadLine();
using (cancellationToken.Register(() => Kill(process)))
{
if (!process.WaitForExit(TimeoutSeconds * 1000))
{
Kill(process);
throw PluginException.CreateTimeoutMessage(Path, TimeoutSeconds);
}
// Give time for the Async event handlers to finish by calling WaitForExit again.
// if the first one succeeded
// Note: Read remarks from https://msdn.microsoft.com/en-us/library/ty0d8k56(v=vs.110).aspx
// for reason.
process.WaitForExit();
}
process.CancelErrorRead();
process.CancelOutputRead();
cancellationToken.ThrowIfCancellationRequested();
stdOut = outBuffer.ToString();
return(process.ExitCode);
}