Let's do the check at parsing time, and fix a couple of format issues and oopsies

Custom_Hooks/eb_hooks.py

@@ -46,7 +46,7 @@ VETOED_INSTALLATIONS = {
         'juwelsbooster': ['impi'],
         'juwels': [],
         'jurecadc': [],
-        'jurecabooster': ['OpenMPI', 'CUDA', 'nvidia-driver', 'UCX', 'NVHPC']
+        'jurecabooster': ['OpenMPI', 'CUDA', 'nvidia-driver', 'UCX', 'NVHPC'],
         'jusuf': ['impi'],
         'hdfml': [],
 }
@@ -64,10 +64,26 @@ REQUIRE_MODALTSOFTNAME = {
     "intel-compilers": "Intel",
 }
 
+def installation_vetoer(ec):
+    "Check whether this package is NOT supposed to be installed in this system, and abort if necessary"
+    name = ec['name']
+    system_name = os.getenv('LMOD_SYSTEM_NAME')
+    if name in VETOED_INSTALLATIONS[system_name]:
+        print_warning(
+                "\nYou are attempting to install software that should not be installed in this system.\n"
+                "Please double check the list of packages that you are attempting to install. The following\n"
+                f"packages can't be installed in {system_name}:\n"
+            )
+        for package in VETOED_INSTALLATIONS[system_name]:
+            print(f"- {package}")
+        exit(1)
 
 def parse_hook(ec, *args, **kwargs):
     """Custom parse hook to manage installations intended for JSC systems."""
 
+    # First of all check if this should be installed
+    installation_vetoer(ec)
+
     ec_dict = ec.asdict()
     # Compilers are are a family (in the Lmod sense)
     if ec.name in SUPPORTED_COMPILERS:
@@ -193,28 +209,10 @@ family("mpi")
                 "  eb --robot=$EASYBUILD_ROBOT:$EBROOTEASYBUILD/easybuild/easyconfigs --try-update-deps ...."
             )
 
-def installation_vetoer(self):
-    "Check whether this package is NOT supposed to be installed in this system, and abort if necessary"
-    ec = self.cfg
-    name = ec['name']
-    system_name = os.getenv('SYSTEMNAME')
-    if name in VETOED_INSTALLATIONS[system_name]:
-        print_warning(
-                "\nYou are attempting to install software that should not be installed in this system.\n"
-                "\nPlease double check the list of packages that you are attempting to install. The following\n"
-                f"\npackages can't be installed in {system_name}:\n"
-            )
-        for package in VETOED_INSTALLATIONS[system_name]:
-            print_warning(f"- {package}\n")
-        exit(1)
-
 def pre_ready_hook(self, *args, **kwargs):
     "When we are building something, do some checks for bad behaviour"
     ec = self.cfg
 
-    # First of all check if this should be installed
-    installation_vetoer(ec)
-
     # Grab name, path, toolchain, install path and check if we are installing
     # GCCcore/MPI
     name = ec["name"]