Add support for oramod packages.

OpenRA.Game/FileSystem/FileSystem.cs

@@ -45,6 +45,8 @@ namespace OpenRA.FileSystem
 				return new ZipFile(this, filename);
 			if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
 				return new ZipFile(this, filename);
+			if (filename.EndsWith(".oramod", StringComparison.InvariantCultureIgnoreCase))
+				return new ZipFile(this, filename);
 			if (filename.EndsWith(".RS", StringComparison.InvariantCultureIgnoreCase))
 				return new D2kSoundResources(this, filename);
 			if (filename.EndsWith(".Z", StringComparison.InvariantCultureIgnoreCase))
@@ -61,8 +63,7 @@ namespace OpenRA.FileSystem
 			IReadOnlyPackage parent;
 			string subPath = null;
 			if (TryGetPackageContaining(filename, out parent, out subPath))
-				if (parent is Folder)
-					return new Folder(Path.Combine(((Folder)parent).Name, subPath));
+				return OpenPackage(subPath, parent);
 
 			return new Folder(Platform.ResolvePath(filename));
 		}
@@ -90,6 +91,15 @@ namespace OpenRA.FileSystem
 			if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
 				return new ZipFile(this, filename, parent.GetStream(filename));
 
+			if (parent is ZipFile)
+				return new ZipFolder(this, (ZipFile)parent, filename, filename);
+
+			if (parent is ZipFolder)
+			{
+				var folder = (ZipFolder)parent;
+				return new ZipFolder(this, folder.Parent, folder.Name + "/" + filename, filename);
+			}
+
 			return null;
 		}
 

OpenRA.Game/FileSystem/ZipFolder.cs

@@ -0,0 +1,75 @@
+#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 System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using ICSharpCode.SharpZipLib.Zip;
+using SZipFile = ICSharpCode.SharpZipLib.Zip.ZipFile;
+
+namespace OpenRA.FileSystem
+{
+	public sealed class ZipFolder : IReadOnlyPackage
+	{
+		public string Name { get; private set; }
+		public ZipFile Parent { get; private set; }
+		readonly string path;
+
+		static ZipFolder()
+		{
+			ZipConstants.DefaultCodePage = Encoding.UTF8.CodePage;
+		}
+
+		public ZipFolder(FileSystem context, ZipFile parent, string path, string filename)
+		{
+			if (filename.EndsWith("/"))
+				filename = filename.Substring(0, filename.Length - 1);
+
+			Name = filename;
+			Parent = parent;
+			if (path.EndsWith("/"))
+				path = path.Substring(0, path.Length - 1);
+
+			this.path = path;
+		}
+
+		public Stream GetStream(string filename)
+		{
+			// Zip files use '/' as a path separator
+			return Parent.GetStream(path + '/' + filename);
+		}
+
+		public IEnumerable<string> Contents
+		{
+			get
+			{
+				foreach (var entry in Parent.Contents)
+				{
+					if (entry.StartsWith(path) && entry != path)
+					{
+						var filename = entry.Substring(path.Length + 1);
+						var dirLevels = filename.Split('/').Count(c => !string.IsNullOrEmpty(c));
+						if (dirLevels == 1)
+							yield return filename;
+					}
+				}
+			}
+		}
+
+		public bool Contains(string filename)
+		{
+			return Parent.Contains(path + '/' + filename);
+		}
+
+		public void Dispose() { /* nothing to do */ }
+	}
+}

OpenRA.Game/ModMetadata.cs

@@ -14,6 +14,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using OpenRA.FileSystem;
+using OpenRA.Primitives;
 
 namespace OpenRA
 {
@@ -40,10 +41,19 @@ namespace OpenRA
 				try
 				{
 					IReadOnlyPackage package = null;
-					if (Directory.Exists(pair.Value))
-						package = new Folder(pair.Value);
+					if (Directory.Exists(pair.Second))
+						package = new Folder(pair.Second);
 					else
-						throw new InvalidDataException(pair.Value + " is not a valid mod package");
+					{
+						try
+						{
+							package = new ZipFile(null, pair.Second);
+						}
+						catch
+						{
+							throw new InvalidDataException(pair.Second + " is not a valid mod package");
+						}
+					}
 
 					if (!package.Contains("mod.yaml"))
 						continue;
@@ -54,7 +64,7 @@ namespace OpenRA
 						continue;
 
 					var metadata = FieldLoader.Load<ModMetadata>(nd["Metadata"]);
-					metadata.Id = pair.Key;
+					metadata.Id = pair.First;
 					metadata.Package = package;
 
 					if (nd.ContainsKey("RequiresMods"))
@@ -65,11 +75,13 @@ namespace OpenRA
 					if (nd.ContainsKey("ContentInstaller"))
 						metadata.Content = FieldLoader.Load<ContentInstaller>(nd["ContentInstaller"]);
 
-					ret.Add(pair.Key, metadata);
+					// Mods in the support directory and oramod packages (which are listed later
+					// in the CandidateMods list) override mods in the main install.
+					ret[pair.First] = metadata;
 				}
 				catch (Exception ex)
 				{
-					Console.WriteLine("An exception occurred when trying to load ModMetadata for `{0}`:".F(pair.Key));
+					Console.WriteLine("An exception occurred when trying to load ModMetadata for `{0}`:".F(pair.First));
 					Console.WriteLine(ex.Message);
 				}
 			}
@@ -77,12 +89,16 @@ namespace OpenRA
 			return ret;
 		}
 
-		static Dictionary<string, string> GetCandidateMods()
+		static IEnumerable<Pair<string, string>> GetCandidateMods()
 		{
 			// Get mods that are in the game folder.
 			var basePath = Platform.ResolvePath(Path.Combine(".", "mods"));
 			var mods = Directory.GetDirectories(basePath)
-				.ToDictionary(x => x.Substring(basePath.Length + 1));
+				.Select(x => Pair.New(x.Substring(basePath.Length + 1), x))
+				.ToList();
+
+			foreach (var m in Directory.GetFiles(basePath, "*.oramod"))
+				mods.Add(Pair.New(Path.GetFileNameWithoutExtension(m), m));
 
 			// Get mods that are in the support folder.
 			var supportPath = Platform.ResolvePath(Path.Combine("^", "mods"));
@@ -90,7 +106,10 @@ namespace OpenRA
 				return mods;
 
 			foreach (var pair in Directory.GetDirectories(supportPath).ToDictionary(x => x.Substring(supportPath.Length + 1)))
-				mods.Add(pair.Key, pair.Value);
+				mods.Add(Pair.New(pair.Key, pair.Value));
+
+			foreach (var m in Directory.GetFiles(supportPath, "*.oramod"))
+				mods.Add(Pair.New(Path.GetFileNameWithoutExtension(m), m));
 
 			return mods;
 		}

OpenRA.Game/OpenRA.Game.csproj

@@ -255,6 +255,7 @@
     <Compile Include="Graphics\RgbaColorRenderer.cs" />
     <Compile Include="Traits\Player\IndexedPlayerPalette.cs" />
     <Compile Include="Traits\ActivityUtils.cs" />
+    <Compile Include="FileSystem\ZipFolder.cs" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="FileSystem\D2kSoundResources.cs" />

OpenRA.Mods.Common/Widgets/Logic/Editor/SaveMapLogic.cs

@@ -121,7 +121,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 					directoryDropdown.ShowDropDown("LABEL_DROPDOWN_TEMPLATE", 210, writableDirectories, setupItem);
 			}
 
-			var mapIsUnpacked = map.Package != null && map.Package is Folder;
+			var mapIsUnpacked = map.Package != null && (map.Package is Folder || map.Package is ZipFolder);
 
 			var filename = widget.Get<TextFieldWidget>("FILENAME");
 			filename.Text = map.Package == null ? "" : mapIsUnpacked ? Path.GetFileName(map.Package.Name) : Path.GetFileNameWithoutExtension(map.Package.Name);