1 files changed, 61 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.BuildTasks/HardLinkCopy.cs b/src/DotNetOpenAuth.BuildTasks/HardLinkCopy.cs
new file mode 100644
index 0000000..af2d1d0
--- /dev/null
+++ b/src/DotNetOpenAuth.BuildTasks/HardLinkCopy.cs
@@ -0,0 +1,61 @@
+//-----------------------------------------------------------------------
+// <copyright file="HardLinkCopy.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.BuildTasks {
+	using System;
+	using System.Collections.Generic;
+	using System.Linq;
+	using System.Text;
+	using Microsoft.Build.Framework;
+	using Microsoft.Build.Utilities;
+	using System.IO;
+
+	public class HardLinkCopy : Task {
+		[Required]
+		public ITaskItem[] SourceFiles { get; set; }
+
+		[Required]
+		public ITaskItem[] DestinationFiles { get; set; }
+
+		/// <summary>
+		/// Executes this instance.
+		/// </summary>
+		public override bool Execute() {
+			if (this.SourceFiles.Length != this.DestinationFiles.Length) {
+				this.Log.LogError("SourceFiles has {0} elements and DestinationFiles has {1} elements.", this.SourceFiles.Length, this.DestinationFiles.Length);
+				return false;
+			}
+
+			for (int i = 0; i < this.SourceFiles.Length; i++) {
+				bool hardLink;
+				bool.TryParse(this.DestinationFiles[i].GetMetadata("HardLink"), out hardLink);
+				string sourceFile = this.SourceFiles[i].ItemSpec;
+				string destinationFile = this.DestinationFiles[i].ItemSpec;
+				this.Log.LogMessage(
+					MessageImportance.Low,
+					"Copying {0} -> {1}{2}.",
+					sourceFile,
+					destinationFile,
+					hardLink ? " as hard link" : string.Empty);
+
+				if (!Directory.Exists(Path.GetDirectoryName(destinationFile))) {
+					Directory.CreateDirectory(Path.GetDirectoryName(destinationFile));
+				}
+
+				if (hardLink) {
+					if (File.Exists(destinationFile)) {
+						File.Delete(destinationFile);
+					}
+					NativeMethods.CreateHardLink(sourceFile, destinationFile);
+				} else {
+					File.Copy(sourceFile, destinationFile, true);
+				}
+			}
+
+			return !this.Log.HasLoggedErrors;
+		}
+	}
+}