ufcx: add new package (#29861)

var/spack/repos/builtin/packages/ufcx/package.py

@@ -0,0 +1,22 @@
+# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Ufcx(CMakePackage):
+    """FFCx provides the ufcx.h interface header for finite element kernels,
+       used by DOLFINx. ufcx.h can be installed from the FFCx repo without
+       making it dependent on Python.
+    """
+
+    homepage = 'https://github.com/FEniCS/ffcx'
+    git = 'https://github.com/FEniCS/ffcx.git'
+    url = 'https://github.com/FEniCS/ffcx/archive/refs/heads/main.zip'
+    maintainers = ['ma595']
+
+    version('main', branch='main')
+
+    root_cmakelists_dir = 'cmake'