Minor CompareFiles optimization when source/target are same path

1 files changed, 6 insertions, 0 deletions

diff --git a/src/WixToolset.Core.WindowsInstaller/Bind/FileSystemManager.cs b/src/WixToolset.Core.WindowsInstaller/Bind/FileSystemManager.cs
index 75477271..fe65ccef 100644
--- a/src/WixToolset.Core.WindowsInstaller/Bind/FileSystemManager.cs
+++ b/src/WixToolset.Core.WindowsInstaller/Bind/FileSystemManager.cs
@@ -2,6 +2,7 @@
 
 namespace WixToolset.Core.WindowsInstaller.Bind
 {
+    using System;
     using System.Collections.Generic;
     using System.IO;
     using WixToolset.Extensibility;
@@ -31,6 +32,11 @@ namespace WixToolset.Core.WindowsInstaller.Bind
 
         private static bool BuiltinCompareFiles(string firstPath, string secondPath)
         {
+            if (String.Equals(firstPath, secondPath, StringComparison.OrdinalIgnoreCase))
+            {
+                return true;
+            }
+
             using (var firstStream = File.OpenRead(firstPath))
             using (var secondStream = File.OpenRead(secondPath))
             {