Replaced hardcoded source actions by user defined ISourceAction.

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

@@ -0,0 +1,32 @@
+#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;
+
+namespace OpenRA.Mods.Common.Installer
+{
+	public class DeleteSourceAction : ISourceAction
+	{
+		public void RunActionOnSource(MiniYaml actionYaml, string path, ModData modData, List<string> extracted, Action<string> updateMessage)
+		{
+			// Yaml path must be specified relative to a named directory (e.g. ^SupportDir)
+			if (!actionYaml.Value.StartsWith("^"))
+				return;
+
+			var sourcePath = Platform.ResolvePath(actionYaml.Value);
+
+			Log.Write("debug", $"Deleting {sourcePath}");
+			File.Delete(sourcePath);
+		}
+	}
+}