捕获PowerShell的输出在C＃Pipeline.Invoke后抛出 [英] Capturing Powershell output in C# after Pipeline.Invoke throws

问题描述

我正在从C＃应用程序一个PowerShell测试脚本。该脚本可能会失败，因为一个坏的小命令导致pipe.Invoke（）抛出异常。

我能捕捉到我需要的有关异常的所有信息，但我希望能够到这一点显示该脚本的输出。因为结果出现时抛出一个异常为空我没有任何运气。

有我丢失的东西？谢谢！

  m_Runspace = RunspaceFactory.CreateRunspace（）;
m_Runspace.Open（）;
管线管= m_Runspace.CreatePipeline（）;
pipe.Commands.AddScript（File.ReadAllText（脚本文件））;
pipe.Commands.Add（赛字符串）;
尝试{
   结果= pipe.Invoke（）;
}
赶上（System.Exception的）
{
   m_Runspace.Close（）;
   //我怎样才能到异常之前自带PowerShell的输出？
}
 

解决方案

我结束了使用的解决方案是实现我们自己的PSHost处理PowerShell中的输出。这样做的最初信息来自<一个href=\"http://community.bartdesmet.net/blogs/bart/archive/2008/07/06/windows-powershell-through-ironruby-writing-a-custom-pshost.aspx\">http://community.bartdesmet.net/blogs/bart/archive/2008/07/06/windows-powershell-through-ironruby-writing-a-custom-pshost.aspx在构建一个定制的PS主机一节。

在我的情况下，它也需要使用自定义PSHostRawUserInterface为好。

下面是一个什么样做了简要概述。我只列出我实际上的形式实现的功能，但有许多是只包含抛出新NotImplementedException（）;

 私有类myPSHost：PSHost
{
   （同上面的链接中提到的）
}
私有类myPSHostUI：PSHostUserInterface
{
   私人myPSHostRawUI rawui =新myPSHostRawUI（）;   公共覆盖无效写入//所有变化
   公众覆盖PSHostRawUserInterface RawUI {{返回rawui; }}}
私有类myPSHostRawUI：PSHostRawUserInterface
{
   公众覆盖ConsoleColor ForegroundColor
   公众覆盖ConsoleColor BackgroundColor中
   公众覆盖缓冲区大小大小
}
 

I'm running a Powershell test script from a C# application. The script can fail due to a bad cmdlet which causes pipe.Invoke() to throw an exception.

I'm able to capture all the information I need about the exception, but I'd like to be able to display the script's output up to that point. I haven't had any luck since results appears to be null when an exception is thrown.

Is there something I'm missing? Thanks!

m_Runspace = RunspaceFactory.CreateRunspace();
m_Runspace.Open();
Pipeline pipe = m_Runspace.CreatePipeline();
pipe.Commands.AddScript(File.ReadAllText(ScriptFile));
pipe.Commands.Add("Out-String");
try {
   results = pipe.Invoke();
}
catch (System.Exception)
{
   m_Runspace.Close();
   // How can I get to the Powershell output that comes before the exception?
}

解决方案

The solution I ended up using was to implement our own PSHost to handle PowerShell's output. The initial information for this came from http://community.bartdesmet.net/blogs/bart/archive/2008/07/06/windows-powershell-through-ironruby-writing-a-custom-pshost.aspx in the "Building a custom PS host" section.

In my case it did require using a custom PSHostRawUserInterface as well.

Here's the quick overview of what was done. I've only listed the function I actually implimented, but there's many that are just contain throw new NotImplementedException();

private class myPSHost : PSHost
{
   (Same as what the above link mentions)
}
private class myPSHostUI : PSHostUserInterface
{
   private myPSHostRawUI rawui = new myPSHostRawUI();

   public override void Write // all variations
   public override PSHostRawUserInterface RawUI { get { return rawui; } }

}
private class myPSHostRawUI : PSHostRawUserInterface
{
   public override ConsoleColor ForegroundColor
   public override ConsoleColor BackgroundColor
   public override Size BufferSize
}

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