Replaced hardcoded source actions by user defined ISourceAction.

OpenRA.Mods.Common/Installer/SourceActions/CopySourceAction.cs

@@ -0,0 +1,56 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2022 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 OpenRA.Mods.Common.Widgets.Logic;
+using FS = OpenRA.FileSystem.FileSystem;
+
+namespace OpenRA.Mods.Common.Installer
+{
+	public class CopySourceAction : ISourceAction
+	{
+		public void RunActionOnSource(MiniYaml actionYaml, string path, ModData modData, List<string> extracted, Action<string> updateMessage)
+		{
+			var sourceDir = Path.Combine(path, actionYaml.Value);
+			foreach (var node in actionYaml.Nodes)
+			{
+				var sourcePath = FS.ResolveCaseInsensitivePath(Path.Combine(sourceDir, node.Value.Value));
+				var targetPath = Platform.ResolvePath(node.Key);
+				if (File.Exists(targetPath))
+				{
+					Log.Write("install", "Ignoring installed file " + targetPath);
+					continue;
+				}
+
+				Log.Write("install", $"Copying {sourcePath} -> {targetPath}");
+				extracted.Add(targetPath);
+				Directory.CreateDirectory(Path.GetDirectoryName(targetPath));
+
+				using (var source = File.OpenRead(sourcePath))
+				using (var target = File.OpenWrite(targetPath))
+				{
+					var displayFilename = Path.GetFileName(targetPath);
+					var length = source.Length;
+
+					Action<long> onProgress = null;
+					if (length < InstallFromDiscLogic.ShowPercentageThreshold)
+						updateMessage(modData.Translation.GetString(InstallFromDiscLogic.CopyingFilename, Translation.Arguments("filename", displayFilename)));
+					else
+						onProgress = b => updateMessage(modData.Translation.GetString(InstallFromDiscLogic.CopyingFilenameProgress, Translation.Arguments("filename", displayFilename, "progress", 100 * b / length)));
+
+					InstallerUtils.CopyStream(source, target, length, onProgress);
+				}
+			}
+		}
+	}
+}