[vecmem] new package for optional dependency of acts (#28029)

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

@@ -0,0 +1,48 @@
+# Copyright 2013-2021 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 Vecmem(CMakePackage, CudaPackage):
+    """VecMem is a vectorised data model base and helper classes."""
+
+    homepage = "https://github.com/acts-project/vecmem"
+    url      = "https://github.com/acts-project/vecmem/archive/refs/tags/v0.5.0.tar.gz"
+    list_url = "https://github.com/acts-project/vecmem/releases"
+
+    maintainers = ['wdconinc', 'HadrienG2']
+
+    version('0.8.0', sha256='a13f7178c940d6bf3386e7e8f5eb158e6435882533bffe888d3c9775eeb2f20e')
+    version('0.7.0', sha256='c00266bc80df8f568103f2874ce349fe8f74fb7e361901d562cce41ab7f9b85c')
+    version('0.6.0', sha256='e6c8262844a5ff7f03df7f849a1e7cf1a68214730ac54c35c14333522ff31723')
+    version('0.5.0', sha256='b9739e8fcdf27fa9ef509743cd8f8f62f871b53b0a63b93f24ea9865c2b00a3a')
+    version('0.4.0', sha256='51dfadc2b97f34530c642abdf86dcb6392e753dd68ef011bac89382dcf8aaad4')
+    version('0.3.0', sha256='4e7851ab46fee925800405c5ae18e99b62644d624d3544277a522a06fb812dbf')
+    version('0.2.0', sha256='33aea135989684e325cb097e455ff0f9d1a9e85ff32f671e3b3ed6cc036176ac')
+    version('0.1.0', sha256='19e24e3262aa113cd4242e7b94e2de34a4b362e78553730a358f64351c6a0a01')
+
+    variant('hip', default=False, description='Build the vecmem::hip library')
+    variant('sycl', default=False, description='Build the vecmem::sycl library')
+
+    depends_on('cmake@3.17:', type='build')
+    depends_on('hip', when='+hip')
+    depends_on('sycl', when='+sycl')
+
+    def cmake_args(self):
+        args = [
+            self.define_from_variant('VECMEM_BUILD_CUDA_LIBRARY', 'cuda'),
+            self.define_from_variant('VECMEM_BUILD_HIP_LIBRARY', 'hip'),
+            self.define_from_variant('VECMEM_BUILD_SYCL_LIBRARY', 'sycl'),
+            self.define('VECMEM_BUILD_TESTING', self.run_tests)
+        ]
+
+        if '+cuda' in self.spec:
+            cuda_arch_list = self.spec.variants['cuda_arch'].value
+            cuda_arch = cuda_arch_list[0]
+            if cuda_arch != 'none':
+                args.append('-DCUDA_FLAGS=-arch=sm_{0}'.format(cuda_arch))
+
+        return args