From 976e38614e6b26b0138c86435c4215e86bbe3b0d Mon Sep 17 00:00:00 2001
From: NeuralFault <neuralfault@gmail.com>
Date: Tue, 17 Feb 2026 17:49:39 -0500
Subject: [PATCH] Added PIP_CONSTRAINT hook so pip process used for building
 CLIP inherit's the setuptools constraint in UV_BUILD_CONSTRAINT.

---
 StabilityMatrix.Core/Models/Packages/VladAutomatic.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/StabilityMatrix.Core/Models/Packages/VladAutomatic.cs b/StabilityMatrix.Core/Models/Packages/VladAutomatic.cs
index 09cc94b8..18411183 100644
--- a/StabilityMatrix.Core/Models/Packages/VladAutomatic.cs
+++ b/StabilityMatrix.Core/Models/Packages/VladAutomatic.cs
@@ -312,6 +312,8 @@ public override async Task InstallPackage(
             )
             .ConfigureAwait(false);
 
+        ApplySetuptoolsConstraints(venvRunner, installLocation);
+
         await venvRunner.PipInstall(["setuptools", "rich", "uv"]).ConfigureAwait(false);
         if (options.PythonOptions.PythonVersion is { Minor: < 12 })
         {
@@ -431,6 +433,8 @@ public override async Task<InstalledPackageVersion> Update(
             )
             .ConfigureAwait(false);
 
+        ApplySetuptoolsConstraints(venvRunner, installedPackage.FullPath!.Unwrap());
+
         await venvRunner.CustomInstall("launch.py --upgrade --test", onConsoleOutput).ConfigureAwait(false);
 
         try
@@ -468,6 +472,12 @@ public override async Task<InstalledPackageVersion> Update(
         return baseUpdateResult;
     }
 
+    private static void ApplySetuptoolsConstraints(IPyVenvRunner venvRunner, string installLocation)
+    {
+        var constraintPath = Path.Combine(installLocation, "venv", "uv-build-constraints.txt");
+        venvRunner.UpdateEnvironmentVariables(env => env.SetItem("PIP_CONSTRAINT", constraintPath));
+    }
+
     private class VladExtensionManager(VladAutomatic package)
         : GitPackageExtensionManager(package.PrerequisiteHelper)
     {