TGS3 (#3)

Let's just get this merged instead of having a massive PR

Original PR: tgstation/tgstation#26534

TGServerService/Program.cs

@@ -0,0 +1,76 @@
+using System.Collections.Generic;
+using System.IO;
+
+namespace TGServerService
+{
+	public static class Program
+	{
+		static void Main() => new TGServerService();	//wondows
+		
+		//Everything in this file is just generic helpers
+
+		//http://stackoverflow.com/questions/1701457/directory-delete-doesnt-work-access-denied-error-but-under-windows-explorer-it
+		public static void DeleteDirectory(string path, bool ContentsOnly = false)
+		{
+			var di = new DirectoryInfo(path);
+			if (!di.Exists)
+				return;
+			NormalizeAndDelete(di);
+			if(!ContentsOnly)
+				di.Delete(true);
+		}
+		static void NormalizeAndDelete(DirectoryInfo dir)
+		{
+			foreach (var subDir in dir.GetDirectories())
+			{
+				NormalizeAndDelete(subDir);
+				subDir.Delete(true);
+			}
+			foreach (var file in dir.GetFiles())
+			{
+				file.Attributes = FileAttributes.Normal;
+			}
+		}
+
+		public static void CopyDirectory(string sourceDirName, string destDirName, IList<string> ignore = null, bool ignoreIfNotExists = false)
+		{
+			// If the destination directory doesn't exist, create it.
+			if (!Directory.Exists(destDirName))
+			{
+				Directory.CreateDirectory(destDirName);
+			}
+			// Get the subdirectories for the specified directory.
+			DirectoryInfo dir = new DirectoryInfo(sourceDirName);
+
+			if (!dir.Exists)
+			{
+				if (ignoreIfNotExists)
+					return;
+				throw new DirectoryNotFoundException(
+					"Source directory does not exist or could not be found: "
+					+ sourceDirName);
+			}
+
+			DirectoryInfo[] dirs = dir.GetDirectories();
+
+			// Get the files in the directory and copy them to the new location.
+			FileInfo[] files = dir.GetFiles();
+			foreach (FileInfo file in files)
+			{
+				if (ignore != null && ignore.Contains(file.Name))
+					continue;
+				string temppath = Path.Combine(destDirName, file.Name);
+				file.CopyTo(temppath, true);
+			}
+
+			// copy them and their contents to new location.
+			foreach (DirectoryInfo subdir in dirs)
+			{
+				if (ignore != null && ignore.Contains(subdir.Name))
+					continue;
+				string temppath = Path.Combine(destDirName, subdir.Name);
+				CopyDirectory(subdir.FullName, temppath, ignore);
+			}
+		}
+	}
+}