Reimplement InstallShieldCAB extraction.

OpenRA.Mods.Common/UtilityCommands/ListInstallShieldCabContentsCommand.cs

@@ -0,0 +1,41 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2016 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using OpenRA.Mods.Common.FileFormats;
+
+namespace OpenRA.Mods.Common.UtilityCommands
+{
+	class ListInstallShieldCabContentsCommand : IUtilityCommand
+	{
+		public string Name { get { return "--list-installshield-cab"; } }
+
+		public bool ValidateArguments(string[] args)
+		{
+			return args.Length == 2;
+		}
+
+		[Desc("DATA.HDR", "Lists the filenames contained within an Installshield CAB volume set")]
+		public void Run(ModData modData, string[] args)
+		{
+			var package = new InstallShieldCABCompression(File.OpenRead(args[1]), null);
+			foreach (var volume in package.Contents.OrderBy(kv => kv.Key))
+			{
+				Console.WriteLine("Volume: {0}", volume.Key);
+				foreach (var filename in volume.Value)
+					Console.WriteLine("\t{0}", filename);
+			}
+		}
+	}
+}