From 32e230a93322f733b44772c4e7d7661262ab3db1 Mon Sep 17 00:00:00 2001
From: Giovanni Bozzano <giovanni.bozzano.1996@gmail.com>
Date: Tue, 2 Sep 2025 17:28:27 +0200
Subject: [PATCH] Ignore destination symbolic links during build acceleration

---
 .../BuildUpToDateCheck.FileSystemOperationAggregator.cs   | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Microsoft.VisualStudio.ProjectSystem.Managed.VS/ProjectSystem/VS/UpToDate/BuildUpToDateCheck.FileSystemOperationAggregator.cs b/src/Microsoft.VisualStudio.ProjectSystem.Managed.VS/ProjectSystem/VS/UpToDate/BuildUpToDateCheck.FileSystemOperationAggregator.cs
index e90ad7068f7..736e82a771c 100644
--- a/src/Microsoft.VisualStudio.ProjectSystem.Managed.VS/ProjectSystem/VS/UpToDate/BuildUpToDateCheck.FileSystemOperationAggregator.cs
+++ b/src/Microsoft.VisualStudio.ProjectSystem.Managed.VS/ProjectSystem/VS/UpToDate/BuildUpToDateCheck.FileSystemOperationAggregator.cs
@@ -174,8 +174,12 @@ public void AddCopy(string source, string destination)
 
                             // TODO add retry logic in case of failed copies? MSBuild does this with CopyRetryCount and CopyRetryDelayMilliseconds
 
-                            // Copy the file
-                            _fileSystem.CopyFile(source, destination, overwrite: true, clearReadOnly: true);
+                            FileInfo destinationFileInfo = new(destination);
+                            if (!destinationFileInfo.Attributes.HasFlag(FileAttributes.ReparsePoint))
+                            {
+                                // Copy the file
+                                _fileSystem.CopyFile(source, destination, overwrite: true, clearReadOnly: true);
+                            }
 
                             copyCount++;
                         }