Added mod metadata listing to OpenRA.Utility

OpenRA.Utility/Program.cs

@@ -6,22 +6,89 @@ using OpenRA.FileFormats;
 
 namespace OpenRA.Utility
 {
+	static class Exts
+	{
+		public static string JoinString(this IEnumerable<string> self, string joiner)
+		{
+			if (self == null || self.Count() == 0) return "";
+			StringBuilder sb = new StringBuilder();
+			foreach (var s in self)
+			{
+				sb.Append(s);
+				sb.Append(joiner);
+			}
+			sb.Remove(sb.Length - joiner.Length, joiner.Length);
+			return sb.ToString();
+		}
+	}
+
 	class Program
 	{
+		static KeyValuePair<string, string> SplitArgs(string arg)
+		{
+			int i = arg.IndexOf('=');
+			if (i < 0) return new KeyValuePair<string, string>(arg, "");
+			return new KeyValuePair<string, string>(arg.Substring(0, i), arg.Substring(i + 1));
+		}
+
+		delegate void ArgCallback(string argValue);
+
+		static Dictionary<string, ArgCallback> argCallbacks;
+
 		static void Main(string[] args)
 		{
-			for (int i = 0; i < args.Length; i++)
+			argCallbacks = new Dictionary<string, ArgCallback>();
+			argCallbacks.Add("--list-mods", ListMods);
+			argCallbacks.Add("--mod-info", ListModInfo);
+			argCallbacks.Add("--list-mod-heirarchy", ListModHeirarchy);
+			
+			if (args.Length == 0) { PrintUsage(); return; }
+			var arg = SplitArgs(args[0]);
+			ArgCallback callback;
+			if (argCallbacks.TryGetValue(arg.Key, out callback))
+				callback(arg.Value);
+			else
+				PrintUsage();
+		}
+
+		static void PrintUsage()
+		{
+			Console.WriteLine("Usage: OpenRA.Utility.exe [OPTION]");
+			Console.WriteLine();
+			Console.WriteLine("  --list-mods             List currently installed mods");
+			Console.WriteLine("  --mod-info=MOD          List metadata for MOD");
+			Console.WriteLine("  --list-mod-heirarchy    Print a tree of the mod heirarchy");
+		}
+
+		static void ListMods(string argValue)
+		{
+			foreach (var m in Mod.AllMods.Where(x => !x.Key.StartsWith("Invalid mod:")).Select(x => x.Key))
+				Console.WriteLine(m);
+		}
+
+		static void ListModInfo(string argValue)
+		{
+			var mod = Mod.AllMods
+				.Where(x => x.Key.Equals(argValue))
+				.Select(x => x.Value)
+				.FirstOrDefault();
+			if (mod == null)
 			{
-				switch (args[i])
-				{
-					case "--list-mods":
-						foreach (var m in Mod.AllMods.Select( x => x.Key ))
-							Console.WriteLine(m);
-						break;
-					default:
-						break;
-				}
+				Console.WriteLine("Error: Mod `{0}` is not installed or could not be found.", argValue);
+				return;
 			}
+
+			Console.WriteLine("Title: {0}", mod.Title);
+			Console.WriteLine("Version: {0}", mod.Version);
+			Console.WriteLine("Author: {0}", mod.Author);
+			Console.WriteLine("Description: {0}", mod.Description);
+			Console.WriteLine("Requires: {0}", mod.RequiresMods.JoinString(","));
+			Console.WriteLine("Standalone: {0}", mod.Standalone.ToString());
+		}
+
+		static void ListModHeirarchy(string argValue)
+		{
+			Console.WriteLine("TODO");
 		}
 	}
 }