Proper implementation of ACCESS-OM3 SPD.

This now builds and install the OM3 executables and is aware of the different variants.

packages/access-om3/package.py

@@ -6,18 +6,56 @@
 from spack.package import *
 
 
-class AccessOm3(BundlePackage):
-    """Dummy package to install the ACCESS-OM3 dependencies."""
+class AccessOm3(CMakePackage):
+    """ACCESS-OM3 global ocean-sea ice-wave coupled model."""
 
     homepage = "https://www.github.com/COSIMA/access-om3"
-    # There is no URL since there is no code to download.
+    git = "https://github.com/COSIMA/access-om3.git"
 
     maintainers = ["micaeljtoliveira", "aekiss"]
 
-    version("0.0.1")
-
-    depends_on("[email protected]+external-parallelio~pnetcdf")
-    depends_on("[email protected]")
-    depends_on("[email protected]")
-
-    # There is no need for install() since there is no code.
+    version("main", branch="main", submodules=True)
+
+    variant(
+        "build_type", default="Release", description="The build type to build",
+        values=("Debug", "Release")
+    )
+    variant(
+        "configurations", default="MOM6-CICE6, CICE6-WW3, MOM6-CICE6-WW3",
+        values=("MOM6", "CICE6", "WW3", "MOM6-WW3", "MOM6-CICE6", "CICE6-WW3", "MOM6-CICE6-WW3"),
+        multi=True, description="ACCESS-OM3 configurations to build"
+    )
+    variant("openmp", default=False, description="Enable OpenMP")
+    variant("mom_symmetric", default=False, description="Use symmetric memory in MOM6")
+    variant(
+        "cice_io", default="PIO", description="CICE IO option",
+        values=("NectCDF", "PIO", "Binary"), multi=False
+    )
+
+    depends_on("[email protected]:", type="build")
+    depends_on("mpi")
+    depends_on("[email protected]:")
+    depends_on("[email protected]:")
+    depends_on("[email protected]:")
+    depends_on("[email protected]:")
+
+    flag_handler = CMakePackage.build_system_flags
+
+    def cmake_args(self):
+        args = [
+            self.define_from_variant("OM3_MOM_SYMMETRIC", "mom_symmetric"),
+            self.define_from_variant("OM3_OPENMP", "openmp"),
+            self.define("OM3_ENABLE_MOM6", "configurations=MOM6" in self.spec),
+            self.define("OM3_ENABLE_CICE6", "configurations=CICE6" in self.spec),
+            self.define("OM3_ENABLE_WW3", "configurations=WW3" in self.spec),
+            self.define("OM3_ENABLE_MOM6-WW3", "configurations=MOM6-WW3" in self.spec),
+            self.define("OM3_ENABLE_MOM6-CICE6", "configurations=MOM6-CICE6" in self.spec),
+            self.define("OM3_ENABLE_CICE6-WW3", "configurations=CICE6-WW3" in self.spec),
+            self.define("OM3_ENABLE_MOM6-CICE6-WW3", "configurations=MOM6-CICE6-WW3" in self.spec)
+        ]
+
+        args.append(self.define("CMAKE_C_COMPILER", self.spec["mpi"].mpicc))
+        args.append(self.define("CMAKE_CXX_COMPILER", self.spec["mpi"].mpicxx))
+        args.append(self.define("CMAKE_Fortran_COMPILER", self.spec["mpi"].mpifc))
+
+        return args