update install of dwd icon tools, now allowing to use hashed compiler versions

conf/common/build.yml

@@ -31,6 +31,11 @@ icon:
   load_cmd: build_cmd
   version: master # The latest release at the moment of creating this file was 2.6.5-nwp0
 
+dwdicontools:
+  build_cmd: "dwd-icon-tools% %SPACK.COMPILER%"
+  load_cmd: build_cmd
+
+
 python_environment:
   # Name of the virtual environment in the remote platform experiment folder
   folder_name: python_environment

templates/common/build_icon.sh

@@ -49,7 +49,13 @@ else
 fi
 
 # Build dwd-icon-tools
-spack install dwd-icon-tools % "%spack.compiler%"
+SPACK_BUILD_DWDICONTOOLS="%DWDICONTOOLS.BUILD_CMD%"
+SPACK_LOAD_DWDICONTOOLS="%DWDICONTOOLS.LOAD_CMD%"
+if [ "${SPACK_LOAD_DWDICONTOOLS}" == "build_cmd" ]; then SPACK_LOAD_DWDICONTOOLS=${SPACK_BUILD_DWDICONTOOLS}; fi
+if [ ! -z "$SPACK_BUILD_DWDICONTOOLS" ]; then
+  spack install --reuse $SPACK_BUILD_DWDICONTOOLS
+  spack load --first ${SPACK_LOAD_DWDICONTOOLS}
+fi
 
 # Need to get ECCODES DWD definitions:
 eccodes_version=$(spack spec $SPACK_BUILD_ICON | grep eccodes | grep -o "@.*%" | grep -o "[0-9\.]*")