speckle.xunit.runner.wpf/xunit.runner.worker/Program.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Pipes;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using xunit.runner.data;

namespace xunit.runner.worker
{
    public static class Program
    {
        private const int ExitSuccess = 0;
        private const int ExitError = 1;

        public static int Main(string[] args)
        {
            if (args.Length < 2)
            {
                Usage();
                return ExitError;
            }

            var pipeName = args[0];
            var parentPid = Int32.Parse(args[1]);
            var process = Process.GetProcessById(parentPid);
            if (process == null)
            {
                Console.WriteLine($"Invalid parent pid {parentPid}");
                return ExitError;
            }

            Task.Run(() => WaitForParentExit(process));

            var listener = new Listener(pipeName);
            listener.Go();
            return ExitSuccess;
        }

        private static void WaitForParentExit(Process process)
        {
            process.WaitForExit();
            Environment.Exit(ExitSuccess);
        }

        private static void Usage()
        {
            Console.WriteLine("xunit.runner.worker [pipe name] [action] [assembly path]");
            Console.WriteLine("\tpipe name:     Name of the pipe this worker should communicate on");
            Console.WriteLine("\taction:        Action performed by the worker (run or discover tests");
            Console.WriteLine("\assembly path:  Path of assembly to perform the action against");
        }
    }
}