From 77dfce0ba3ec0ba5c8a8d49520045c2fc104a0bc Mon Sep 17 00:00:00 2001
From: Matthew Leibowitz <mattleibow@live.com>
Date: Fri, 17 Feb 2023 23:23:48 +0200
Subject: [PATCH] Use and clear a local nuget cache (#13256)

* Use and clear a local nuget cache

* more
---
 eng/cake/dotnet.cake | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/eng/cake/dotnet.cake b/eng/cake/dotnet.cake
index 630842987ba3..d78ddde04143 100644
--- a/eng/cake/dotnet.cake
+++ b/eng/cake/dotnet.cake
@@ -490,6 +490,8 @@ Task("VS")
             Error("!!!!BUILD TASKS FAILED: !!!!!");
         }
 
+        UseLocalNuGetCacheFolder();
+
         StartVisualStudioForDotNet6();
     }); 
 
@@ -568,6 +570,23 @@ void SetDotNetEnvironmentVariables()
         SetEnvironmentVariable("MSBuildDebugEngine", "1");
 }
 
+void UseLocalNuGetCacheFolder(bool reset = false)
+{
+    var temp = Context.Environment.GetSpecialPath(SpecialPath.LocalTemp);
+    var packages = temp.Combine("Microsoft.Maui.Cache/NuGet/packages");
+
+    EnsureDirectoryExists(packages);
+
+    CleanDirectories(packages.FullPath + "/microsoft.maui.*");
+    CleanDirectories(packages.FullPath + "/microsoft.aspnetcore.*");
+
+    if (reset)
+        CleanDirectories(packages.FullPath);
+
+    SetEnvironmentVariable("RestorePackagesPath", packages.FullPath);
+    SetEnvironmentVariable("NUGET_PACKAGES", packages.FullPath);
+}
+
 void StartVisualStudioForDotNet6()
 {
     string sln = Argument<string>("sln", null);