Enable init_year for CMIP6 only

esm_cat_generator.py

@@ -80,8 +80,9 @@ class Process(object):
                     entry_facets = [facets[i] for i in drs.dir_keys]
                     entry = [IPSL_DATA_ROOT + path.as_posix(), self.project]
                     entry.extend(entry_facets)
-                    entry.extend([facets['init_year'],
-                                  facets['period_start'],
+                    if self.project == 'CMIP6':
+                        entry.append(facets['init_year'])
+                    entry.extend([facets['period_start'],
                                   facets['period_end'],
                                   facets['climatology'],
                                   latest.title()])