From cda0733a7f3e199037256b5f28996992b1f6136f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20K=C3=B6plinger?= <alex.koeplinger@outlook.com>
Date: Thu, 2 Apr 2026 01:16:48 +0200
Subject: [PATCH] Revert "Delete package source mapping from NuGet.config
 (#16628)"

This reverts commit 631897b8599ae6371ef023d22e1cd9988aec9af4.
---
 NuGet.config | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/NuGet.config b/NuGet.config
index 10463f58216..f0da823560c 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -17,6 +17,49 @@
     <add key="dotnet11" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json" />
     <add key="dotnet11-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11-transport/nuget/v3/index.json" />
   </packageSources>
+  <packageSourceMapping>
+    <clear />
+    <packageSource key="dotnet-public">
+      <package pattern="microsoft.*" />
+      <package pattern="runtime.*" />
+      <package pattern="system.*" />
+      <package pattern="*" />
+    </packageSource>
+    <packageSource key="dotnet-tools">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet-eng">
+      <package pattern="microsoft.*" />
+      <package pattern="*" />
+    </packageSource>
+    <packageSource key="dotnet-libraries">
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet-libraries-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet9">
+      <package pattern="microsoft.*" />
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet9-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet10">
+      <package pattern="microsoft.*" />
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet10-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+    <packageSource key="dotnet11">
+      <package pattern="microsoft.*" />
+      <package pattern="system.*" />
+    </packageSource>
+    <packageSource key="dotnet11-transport">
+      <package pattern="microsoft.*" />
+    </packageSource>
+  </packageSourceMapping>
   <disabledPackageSources>
     <clear />
   </disabledPackageSources>