spawner: Add option to pull stdout from console.

Author: freezy

VisualPinball.Engine.Mpf.Test/Program.cs

@@ -38,7 +38,10 @@ public static async Task Main(string[] args)
 			var s = Stopwatch.StartNew();
 			var mpfApi = new MpfApi(machineFolder);
 
-			mpfApi.Launch(new MpfConsoleOptions { ShowLogInsteadOfConsole = false });
+			mpfApi.Launch(new MpfConsoleOptions {
+				ShowLogInsteadOfConsole = true,
+				CatchStdOut = true,
+			});
 
 			mpfApi.StartGame(new Dictionary<string, bool> {
 				{"sw_11", false},

VisualPinball.Engine.Mpf/MpfApi.cs

@@ -31,7 +31,7 @@ public static MachineDescription GetMachineDescription(string machineFolder)
 		{
 			var client = new MpfClient();
 			var spawner = new MpfSpawner(machineFolder);
-			spawner.Spawn(new MpfConsoleOptions());
+			spawner.Spawn(new MpfConsoleOptions { ShowLogInsteadOfConsole = true });
 			client.Connect("localhost:50051");
 			client.StartGame(new Dictionary<string, bool>(), false);
 			var description = client.GetMachineDescription();

VisualPinball.Engine.Mpf/MpfSpawner.cs

@@ -64,14 +64,22 @@ private void RunMpf(string mpfExePath, MpfConsoleOptions options)
 				FileName = mpfExePath,
 				WorkingDirectory = _pwd,
 				Arguments = args,
-				UseShellExecute = true,
-				RedirectStandardOutput = false,
-
+				UseShellExecute = !options.CatchStdOut,
+				RedirectStandardOutput = options.CatchStdOut,
 			};
 
 			using (var process = Process.Start(info)) {
 				_ready.Release();
-				process.WaitForExit();
+				if (!options.CatchStdOut) {
+					process.WaitForExit();
+
+				} else {
+					using (var reader = process.StandardOutput) {
+						var result = reader.ReadToEnd();
+						Console.Write(result);
+						process.WaitForExit();
+					}
+				}
 			}
 		}
 
@@ -109,5 +117,6 @@ public class MpfConsoleOptions
 		public bool UseMediaController;
 		public bool ShowLogInsteadOfConsole;
 		public bool VerboseLogging = true;
+		public bool CatchStdOut;
 	}
 }