Build Icon creates a file called icon_environment.env which can be sourced to...

Build Icon creates a file called icon_environment.env which can be sourced to set up the proper environment to run icon.

templates/common/build_icon.sh

@@ -70,3 +70,31 @@ if [ ! -f "${definitions_tar_file}" ]; then
   # Create a file containing the environment variable that needs to be set in order to use DWD's definitions:
   echo "export ECCODES_DEFINITION_PATH=${WORKDIR}/definitions.edzw-${eccodes_version}-1" >eccodes_defs.env
 fi
+
+
+# Create a file to set the proper environment to run ICON:
+
+cat >icon_environment.env <<EOF
+ # This file loads the proper environment to run icon.
+# Activate spack
+. ${WORKDIR}/proj/platforms/common/spack_utils.sh
+load_spack "%spack.init%" "%spack.root%" "%spack.url%" "%spack.branch%" "%spack.externals%" "%spack.compiler%" "%spack.disable_local_config%" "%spack.user_cache_path%" "%spack.user_config_path%" "%spack.upstreams%"
+
+
+# Get proper load command.
+SPACK_BUILD_ICON="%ICON.BUILD_CMD%"
+SPACK_LOAD_ICON="%ICON.LOAD_CMD%"
+
+if [ "${SPACK_LOAD_ICON}" == "build_cmd" ]; then
+  SPACK_LOAD_ICON=${SPACK_BUILD_ICON}
+fi
+# Load icon module
+spack load --first ${SPACK_LOAD_ICON}
+
+# Set environment variable for eccodes-dwd definitions:
+source ${WORKDIR}/eccodes_defs.env
+
+# Increase stack size limit
+ulimit -s unlimited
+
+EOF
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