Merge branch 'update_user_installs' into '2020'

Update UserInstallations to be able to build software for user or group

See merge request hps-public/easybuild-repository!594

Custom_Hooks/eb_hooks.py

@@ -83,6 +83,17 @@ def parse_hook(ec, *args, **kwargs):
                 REQUIRE_MODALTSOFTNAME[ec.name],
             )
 
+    # Check if the module should be installed as hidden
+    hidden_pkgs = os.getenv("EASYBUILD_HIDE_DEPS").split(',')
+    if ec.name in hidden_pkgs:
+        key = "hidden"
+        if not key in ec_dict or ec_dict[key] is False:
+            ec[key] = True
+            ec.log.info(
+                "[parse hook] Hiding software found in $EASYBUILD_HIDE_DEPS: %s",
+                ec.name,
+            )
+
     # Check if CUDA is in the dependencies, if so add the GPU Lmod tag
     if (
         "CUDA" in [dep[0] for dep in iter(ec_dict["dependencies"])]