From 998fabaac586ee41824248f62b9d65fdf1992255 Mon Sep 17 00:00:00 2001
From: Rainer Sigwald <raines@microsoft.com>
Date: Fri, 7 Jan 2022 09:25:21 -0600
Subject: [PATCH] Share read for text resource files

Fixes #7229 by ensuring that MSBuild's processing of a `.txt` resource holds only the minimal lock: open for read and allowing other processes to read while it's open.
---
 src/Tasks/GenerateResource.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Tasks/GenerateResource.cs b/src/Tasks/GenerateResource.cs
index 0120745f6e3..478f632977c 100644
--- a/src/Tasks/GenerateResource.cs
+++ b/src/Tasks/GenerateResource.cs
@@ -3874,7 +3874,7 @@ internal sealed class LineNumberStreamReader : StreamReader
             private int _col;
 
             internal LineNumberStreamReader(String fileName, Encoding encoding, bool detectEncoding)
-                : base(File.Open(fileName, FileMode.Open, FileAccess.Read), encoding, detectEncoding)
+                : base(File.Open(fileName, FileMode.Open, FileAccess.Read, FileShare.Read), encoding, detectEncoding)
             {
                 _lineNumber = 1;
                 _col = 0;