Script to combine source files into single text file

combine.cs

#!/usr/bin/csharp

using System;
using System.IO;
using R7.Scripting;

class Combine 
{
	public void Run ()
	{
		Directory.SetCurrentDirectory("/home/redhound/Рабочий стол/Регистрация СДК/код/R7.HelpDesk/R7.HelpDesk");
		var log = new Log("combine.log");

		try 
		{
                	// provided by git ls-files    
			var files = File.ReadAllLines ("ls-files.txt");
		
			var outfile = "single-file.txt";
			
			var excludeExt = new [] { ".txt", ".md", ".png", ".jpg", ".gif", ".resx" };

			var f = new FileStream (outfile, FileMode.Create, FileAccess.Write, FileShare.None);
			var sw = new StreamWriter (f);
			sw.AutoFlush = true;

			foreach (string file in files)
			{
				var exclude = false;
				var fileExt = Path.GetExtension(file).ToLowerInvariant ();
				foreach (var ext in excludeExt)
					if (fileExt == ext)
					{
						exclude = true;
						break;
					}

				if (exclude) continue;

				try 
				{
					sw.WriteLine ();
					sw.WriteLine ("Содержимое файла " + file + ":");
					sw.WriteLine ();

					var lines = File.ReadAllLines (file);

					foreach (var line in lines)
						sw.WriteLine (line);

					Console.WriteLine (file);
				}
				catch (Exception ex)
				{
					log.WriteLine ("Error: " + ex.Message);
				}
			}

			sw.Close();
			f.Close();
		}
		catch (Exception ex)
		{
			log.WriteLine ("Error: " + ex.Message);
		}
		log.Close();
	}
}

new Combine().Run ();