detray: new package (#45024)

* detray: new package

This commit adds the detray package, a detector description library for
HEP experiments that is designed to be GPU-friendly.

* Update var/spack/repos/builtin/packages/detray/package.py

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

* Update var/spack/repos/builtin/packages/detray/package.py

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

---------

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

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

@@ -0,0 +1,83 @@
+# Copyright 2013-2024 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.package import *
+
+
+class Detray(CMakePackage):
+    """Detray is a description library for high energy physics experiments that
+    works entirely without polymorphism, making it exceptionally suitable for
+    use on GPU platforms."""
+
+    homepage = "https://github.com/acts-project/detray"
+    url = "https://github.com/acts-project/detray/archive/refs/tags/v0.67.0.tar.gz"
+
+    tags = ["hep"]
+
+    maintainers("stephenswat")
+
+    license("MPL-2.0", checked_by="stephenswat")
+
+    version("0.69.1", sha256="7100ec86a47458a35f5943cd6c7da07c68b8c1c2f62d36d13b8bb50568d0abe5")
+    version("0.68.0", sha256="6d57835f22ced9243fbcc29b84ea4c01878a46bfa5910e320c933e9bf8e96612")
+    version("0.67.0", sha256="87b1b29f333c955ea6160f9dda89628490d85a9e5186c2f35f57b322bbe27e18")
+
+    variant("csv", default=True, description="Enable the CSV IO plugin")
+    variant(
+        "cxxstd",
+        default="17",
+        values=("17", "20", "23"),
+        multi=False,
+        description="C++ standard used",
+    )
+    variant("json", default=True, description="Enable the JSON IO plugin")
+    variant(
+        "scalar",
+        default="float",
+        values=("float", "double"),
+        multi=False,
+        description="Scalar type to use by default",
+    )
+    variant("eigen", default=True, description="Enable the Eigen math plugin")
+    variant("smatrix", default=False, description="Enable the SMatrix math plugin")
+    variant("vc", default=True, description="Enable the Vc math plugin")
+
+    depends_on("cmake@3.11:", type="build")
+    depends_on("vecmem@1.6.0:")
+    depends_on("covfie@0.10.0:")
+    depends_on("nlohmann-json@3.11.0:", when="+json")
+    depends_on("dfelibs@20211029:")
+    depends_on("acts-algebra-plugins@0.18.0: +vecmem")
+    depends_on("acts-algebra-plugins +vc", when="+vc")
+    depends_on("acts-algebra-plugins +eigen", when="+eigen")
+    depends_on("acts-algebra-plugins +smatrix", when="+smatrix")
+
+    with when("+smatrix"):
+        depends_on("acts-algebra-plugins cxxstd=17", when="cxxstd=17")
+        depends_on("acts-algebra-plugins cxxstd=20", when="cxxstd=20")
+        depends_on("acts-algebra-plugins cxxstd=23", when="cxxstd=23")
+
+    depends_on("actsvg +meta")
+
+    def cmake_args(self):
+        args = [
+            self.define("DETRAY_USE_SYSTEM_LIBS", True),
+            self.define_from_variant("CMAKE_CXX_STANDARD", "cxxstd"),
+            self.define_from_variant("CMAKE_CUDA_STANDARD", "cxxstd"),
+            self.define_from_variant("CMAKE_SYCL_STANDARD", "cxxstd"),
+            self.define_from_variant("DETRAY_CUSTOM_SCALARTYPE", "scalar"),
+            self.define_from_variant("DETRAY_EIGEN_PLUGIN", "eigen"),
+            self.define_from_variant("DETRAY_SMATRIX_PLUGIN", "smatrix"),
+            self.define_from_variant("DETRAY_IO_CSV", "csv"),
+            self.define_from_variant("DETRAY_IO_JSON", "json"),
+            self.define("DETRAY_SVG_DISPLAY", True),
+            self.define("DETRAY_SETUP_ACTSVG", True),
+            self.define("DETRAY_BUILD_TESTING", False),
+            self.define("DETRAY_SETUP_GOOGLETEST", False),
+            self.define("DETRAY_SETUP_BENCHMARK", False),
+            self.define("DETRAY_BUILD_TUTORIALS", False),
+        ]
+
+        return args