python312Packages.materialx: 1.38.10 -> 1.39.0

[r-ryantm]

Automatic update generated by nixpkgs-update tools. This update was made based on information from passthru.updateScript.

meta.description for python312Packages.materialx is: Open standard for representing rich material and look-development content in computer graphics

meta.homepage for python312Packages.materialx is: https://materialx.org

meta.changelog for python312Packages.materialx is: https://github.com/AcademySoftwareFoundation/MaterialX/blob/refs/tags/v1.39.0/CHANGELOG.md

Updates performed

• Ran passthru.UpdateScript

To inspect upstream changes

Impact

Checks done

---

• built on NixOS
• The tests defined in passthru.tests, if any, passed
• found 1.39.0 with grep in /nix/store/qw5p5lyffd8fqbncnz8jcnz7jfmf0vc8-python3.12-materialx-1.39.0
• found 1.39.0 in filename of file in /nix/store/qw5p5lyffd8fqbncnz8jcnz7jfmf0vc8-python3.12-materialx-1.39.0

---

Rebuild report (if merged into master) (click to expand)

9 total rebuild path(s)

9 package rebuild(s)

First fifty rebuilds by attrpath

blender
blender-hip
materialx
openusd
python311Packages.materialx
python311Packages.openusd
python312Packages.materialx
python312Packages.openusd

Instructions to test this update (click to expand)

---

Either download from Cachix:

nix-store -r /nix/store/qw5p5lyffd8fqbncnz8jcnz7jfmf0vc8-python3.12-materialx-1.39.0 \
  --option binary-caches 'https://cache.nixos.org/ https://nix-community.cachix.org/' \
  --option trusted-public-keys '
  nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=
  cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
  '

(The Cachix cache is only trusted for this store-path realization.)
For the Cachix download to work, your user must be in the trusted-users list or you can use sudo since root is effectively trusted.

Or, build yourself:

nix-build -A python312Packages.materialx https://github.com/r-ryantm/nixpkgs/archive/3af973f6a8eb435812b905079a26fd45f3a6714c.tar.gz

Or:

nix build github:r-ryantm/nixpkgs/3af973f6a8eb435812b905079a26fd45f3a6714c#python312Packages.materialx

After you've downloaded or built it, look at the files and if there are any, run the binaries:

ls -la /nix/store/qw5p5lyffd8fqbncnz8jcnz7jfmf0vc8-python3.12-materialx-1.39.0
ls -la /nix/store/qw5p5lyffd8fqbncnz8jcnz7jfmf0vc8-python3.12-materialx-1.39.0/bin

---

Pre-merge build results

We have automatically built all packages that will get rebuilt due to
this change.

This gives evidence on whether the upgrade will break dependent packages.
Note sometimes packages show up as failed to build independent of the
change, simply because they are already broken on the target branch.

Result of nixpkgs-review run on x86_64-linux 1

5 packages failed to build:

• blender
• blender-hip
• openusd
• python311Packages.openusd
• python312Packages.openusd

2 packages built:

• materialx (python312Packages.materialx)
• python311Packages.materialx

---

Maintainer pings

cc @gador for testing.

[gador]

This breaks downstream packages due to several errors in MaterialX cmake interface.
Using 1.39.1-rc1 with the following patch applied, works:

diff --git a/pkgs/development/python-modules/materialx/default.nix b/pkgs/development/python-modules/materialx/default.nix
index b1e11ba6de23..ff9f536c762a 100644
--- a/pkgs/development/python-modules/materialx/default.nix
+++ b/pkgs/development/python-modules/materialx/default.nix
@@ -12,19 +12,27 @@
   openimageio,
   imath,
   python,
+  fetchpatch2,
 }:

 buildPythonPackage rec {
   pname = "materialx";
-  version = "1.38.10";
+  version = "1.39.1-rc1";

   src = fetchFromGitHub {
     owner = "AcademySoftwareFoundation";
     repo = "MaterialX";
-    rev = "v${version}";
-    hash = "sha256-/kMHmW2dptZNtjuhE5s+jvPRIdtY+FRiVtMU+tiBgQo=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-xA91/QfBepO4E6i8sEC9jlcQMCPTK7wyiL2ztv4yzl8=";
   };

+  patches = [
+    (fetchpatch2 {
+      url = "https://patch-diff.githubusercontent.com/raw/AcademySoftwareFoundation/MaterialX/pull/1971.patch?full_index=1";
+      hash = "sha256-M2/uZgzmWwrPbeYY4/1YGS9LAbPZFmEB52XVao9cXbA=";
+    })
+  ];
+
   format = "other";

   nativeBuildInputs = [

Since this requires the rc-1 version and a patch, lets wait for upstream to release a bugfix release we can just use

[gador]

Also downstream package openusd fails to build due to breaking API changes. An unmerged PR has been submitted: PixarAnimationStudios/OpenUSD#3159