Console app to generate a xunit project file from a file search

gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Xml;

namespace BuildXUnitProjectFile
{
	class Program
	{
		static void Main(string[] args)
		{
			if (args.Length != 3)
			{
				Console.WriteLine(@"This program takes 3 arguments, a start directory, a dll search path, and an output file:  BuildXUnitProjectFile.exe ""c:\temp"" ""*test*.dll"" assemblies.xunit");
				return;
			}

			string startDir = args[0];
			string search = args[1];
			string output = args[2];
			if (!Directory.Exists(args[0]))
			{
				Console.WriteLine("Start directory doesn't exist: exiting");
				return;
			}

			using (XmlTextWriter xml = new XmlTextWriter(output, Encoding.UTF8))
			{
				xml.Formatting = Formatting.Indented;
				xml.WriteStartElement("xunit");
				xml.WriteStartElement("assemblies");
				DirectoryInfo di = new DirectoryInfo(args[0]);
				FileInfo[] files = di.GetFiles(search, SearchOption.AllDirectories);
				foreach (FileInfo fi in files)
				{
					xml.WriteStartElement("assembly");
					xml.WriteAttributeString("filename",fi.FullName);
					xml.WriteAttributeString("shadow-copy","true");
					xml.WriteEndElement();
				}
				xml.WriteEndElement();
				xml.WriteEndElement();
			}
		}
	}
}