Move Shp conversion/remap commands to Mods.Cnc

OpenRA.Mods.Cnc/UtilityCommands/Glob.cs

@@ -0,0 +1,127 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 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.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace OpenRA.Mods.Cnc.UtilityCommands
+{
+	public static class Glob
+	{
+		public static bool Enabled = true;
+
+		static readonly char[] GlobChars = new char[] { '*', '?' };
+		static readonly char[] DirectorySeparators = new char[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar };
+
+		static bool NeedsExpansion(string filePath)
+		{
+			if (!Enabled)
+				return false;
+
+			return filePath.IndexOfAny(GlobChars) >= 0;
+		}
+
+		public static IEnumerable<string> Expand(string filePath)
+		{
+			if (!NeedsExpansion(filePath))
+			{
+				yield return filePath;
+				yield break;
+			}
+
+			// Split using DirectorySeparators but keep the separators
+			var parts = new List<string>();
+
+			for (var startIndex = 0; startIndex < filePath.Length;)
+			{
+				var index = filePath.IndexOfAny(DirectorySeparators, startIndex);
+				if (index == -1)
+				{
+					parts.Add(filePath.Substring(startIndex));
+					break;
+				}
+
+				parts.Add(filePath.Substring(startIndex, index - startIndex + 1));
+				startIndex = index + 1;
+			}
+
+			if (parts.Count > 0 && (parts[0] == "." || parts[0] == ".."))
+				parts[0] += Path.DirectorySeparatorChar;
+
+			// If it's empty
+			// or if
+			//    it's not rooted
+			//    and it doesn't start with "./" or "../"
+			// prepend "./"
+			if (parts.Count == 0
+				|| (parts[0][0] != Path.DirectorySeparatorChar
+				&& parts[0][0] != Path.AltDirectorySeparatorChar
+				&& parts[0].Contains(':') == false
+				&& parts[0] != "." + Path.DirectorySeparatorChar
+				&& parts[0] != "." + Path.AltDirectorySeparatorChar
+				&& parts[0] != ".." + Path.DirectorySeparatorChar
+				&& parts[0] != ".." + Path.AltDirectorySeparatorChar))
+				parts.Insert(0, "." + Path.DirectorySeparatorChar);
+
+			// If the last entry ends with a directory separator, append a '*'
+			if (parts[parts.Count - 1][parts[parts.Count - 1].Length - 1] == Path.DirectorySeparatorChar
+				|| parts[parts.Count - 1][parts[parts.Count - 1].Length - 1] == Path.AltDirectorySeparatorChar)
+				parts.Add("*");
+
+			var root = parts[0];
+			var dirs = parts.Skip(1).Take(parts.Count - 2).ToList();
+			var file = parts[parts.Count - 1];
+
+			foreach (var path in Expand(root, dirs, 0, file))
+				yield return path;
+		}
+
+		static IEnumerable<string> Expand(string basePath, IList<string> dirs, int dirIndex, string file)
+		{
+			if (dirIndex < dirs.Count)
+			{
+				var dir = dirs[dirIndex];
+
+				if (!NeedsExpansion(dir))
+				{
+					var path = Path.Combine(basePath, dir);
+
+					if (!Directory.Exists(path))
+						yield break;
+					else
+					{
+						foreach (var s in Expand(path, dirs, dirIndex + 1, file))
+							yield return s;
+					}
+				}
+				else
+				{
+					if (dir[dir.Length - 1] == Path.DirectorySeparatorChar || dir[dir.Length - 1] == Path.AltDirectorySeparatorChar)
+						dir = dir.Substring(0, dir.Length - 1);
+					foreach (var subDir in Directory.EnumerateDirectories(basePath, dir, SearchOption.TopDirectoryOnly))
+						foreach (var s in Expand(subDir, dirs, dirIndex + 1, file))
+							yield return s;
+				}
+			}
+			else
+			{
+				if (!NeedsExpansion(file))
+					yield return Path.Combine(basePath, file);
+				else
+				{
+					foreach (var s in Directory.GetFiles(basePath, file, SearchOption.TopDirectoryOnly))
+						yield return s;
+				}
+			}
+		}
+	}
+}