c# - 作为 .NET 进程运行时 Git diff 卡住

Question

运行 Git diff 会卡住，直到以 System.Diagnostics.Process 运行时终止。

代码:

class Program
    {
        static void Main(string[] args)
        {
            ProcessStartInfo pInfo = new ProcessStartInfo();
            pInfo.FileName = "git.exe";
            pInfo.Arguments = "diff --name-only --exit-code V2.4-Beta-01 HEAD";
            pInfo.WorkingDirectory = @"C:\Git";
            pInfo.UseShellExecute = false;
            pInfo.CreateNoWindow = true;
            pInfo.RedirectStandardError = true;
            pInfo.RedirectStandardOutput = true;

            Process p = new Process();
            p.StartInfo = pInfo;

            p.Start();

            p.WaitForExit(10000);

            if (!p.HasExited)
            {
                p.Kill();
                Console.WriteLine("Killed!!!");
            }

            Console.WriteLine(p.StandardOutput.ReadToEnd());
            Console.WriteLine(p.StandardError.ReadToEnd());
            Console.ReadLine();
        }
    }

如何避免这种情况，使程序在不超时的情况下正常存在？

Answer 1

问题是有人必须消耗 stdout 缓冲区，否则它会被填满并且进程会卡住(参见解释 here)。我尝试的差异检索了 983 行，这导致了缓冲区溢出。

以下是我的问题的解决方案:

class Program
    {
        static void Main(string[] args)
        {
            ProcessStartInfo pInfo = new ProcessStartInfo();
            pInfo.FileName = "git.exe";
            pInfo.Arguments = "diff --name-only --exit-code V2.4-Beta-01 HEAD";
            pInfo.WorkingDirectory = @"C:\Git";
            pInfo.UseShellExecute = false;
            pInfo.CreateNoWindow = true;
            pInfo.RedirectStandardError = true;
            pInfo.RedirectStandardOutput = true;

            string output = string.Empty;

            Process p = new Process();
            p.StartInfo = pInfo;

            p.OutputDataReceived += new DataReceivedEventHandler((sender, e) =>
            {
                if (!String.IsNullOrEmpty(e.Data))
                {
                    output += e.Data + Environment.NewLine;
                }
            });

            p.Start();

            p.BeginOutputReadLine();

            p.WaitForExit();
            p.Close();

            Console.WriteLine(output);
            Console.ReadLine();
        }
    }