Add manage externals to access MMM-physics repo

CMakeLists.txt

@@ -315,6 +315,29 @@ if ( ${USE_IPO} )
 endif()
 
 
+
+################################################################################
+##
+## Checkout external repositories using manage_externals
+##
+################################################################################
+message( STATUS "Checking out external repos via manage_externals" )
+set( LOG_FILE      ${CMAKE_CURRENT_BINARY_DIR}/checkout_externals.log )
+execute_process(
+                COMMAND
+                  ${PROJECT_SOURCE_DIR}/tools/manage_externals/checkout_externals --externals ${PROJECT_SOURCE_DIR}/arch/Externals.cfg
+                WORKING_DIRECTORY       ${PROJECT_SOURCE_DIR}
+                RESULT_VARIABLE         MANAGE_EXTERNALS_STATUS
+                OUTPUT_FILE             ${LOG_FILE}
+                ERROR_FILE              ${LOG_FILE}
+                )
+if ( ${MANAGE_EXTERNALS_STATUS} AND NOT ${MANAGE_EXTERNALS_STATUS} EQUAL 0 )
+  message( FATAL_ERROR "Failed to checkout external repos via manage_externals" )
+else()
+  message( STATUS "Finished checking out external repos via manage_externals" )
+endif()
+
+
 ################################################################################
 ##
 ## Create our flags / defines properties and variables to carry our information

arch/Externals.cfg

@@ -0,0 +1,10 @@
+[MMM-physics]
+local_path = ./phys/physics_mmm
+protocol = git
+repo_url = https://github.com/NCAR/MMM-physics.git
+tag = 20240626-MPASv8.2
+
+required = True
+
+[externals_description]
+schema_version = 1.0.0

phys/Makefile

@@ -249,6 +249,7 @@ LIBTARGET    =  physics
 TARGETDIR    =  ./
 
 $(LIBTARGET) :
+	(cd .. && ./tools/manage_externals/checkout_externals --externals ./arch/Externals.cfg)
 	$(MAKE) $(J) non_nmm ; \
 	$(AR) $(ARFLAGS) ../main/$(LIBWRFLIB) $(MODULES) $(OBJS)  \
 		$(FIRE_MODULES) $(DIAGNOSTIC_MODULES_EM) $(PHYSMMM_MODULES)