Add --replay-metadata utility command.

OpenRA.Mods.Common/OpenRA.Mods.Common.csproj

@@ -530,6 +530,7 @@
     <Compile Include="LoadScreens\BlankLoadScreen.cs" />
     <Compile Include="UtilityCommands\CheckYaml.cs" />
     <Compile Include="UtilityCommands\CheckCodeStyle.cs" />
+    <Compile Include="UtilityCommands\ReplayMetadataCommand.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>

OpenRA.Mods.Common/UtilityCommands/ReplayMetadataCommand.cs

@@ -0,0 +1,40 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 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. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using OpenRA.FileFormats;
+
+namespace OpenRA.Mods.Common.UtilityCommands
+{
+	class ReplayMetadataCommand : IUtilityCommand
+	{
+		public string Name { get { return "--replay-metadata"; } }
+
+		[Desc("REPLAYFILE", "Print the game metadata from a replay file.")]
+		public void Run(ModData modData, string[] args)
+		{
+			var replay = ReplayMetadata.Read(args[1]);
+			var info = replay.GameInfo;
+
+			var lines = FieldSaver.Save(info).ToLines(replay.FilePath);
+			foreach (var line in lines)
+				Console.WriteLine(line);
+
+			Console.WriteLine("\tPlayers:");
+			var playerCount = 0;
+			foreach (var p in info.Players)
+			{
+				var playerLines = FieldSaver.Save(p).ToLines("{0}".F(playerCount++));
+				foreach (var line in playerLines)
+					Console.WriteLine("\t\t" + line);
+			}
+		}
+	}
+}