Best Python code snippet using dbt-osmosis_python
osmosis.py
Source:osmosis.py
...1002 if not deserialized_info["meta"]:1003 deserialized_info.pop("meta")1004 knowledge[name].update(deserialized_info)1005 return knowledge1006 def get_node_columns_with_inherited_knowledge(1007 self,1008 node: ManifestNode,1009 ) -> Dict[str, Dict[str, Any]]:1010 """Build a knowledgebase for the model based on iterating through ancestors"""1011 family_tree = self.build_node_ancestor_tree(node)1012 knowledge = self.inherit_column_level_knowledge(family_tree)1013 return knowledge1014 @staticmethod1015 def get_column_sets(1016 database_columns: Iterable[str],1017 yaml_columns: Iterable[str],1018 documented_columns: Iterable[str],1019 ) -> Tuple[List[str], List[str], List[str]]:1020 """Returns:1021 missing_columns: Columns in database not in dbt -- will be injected into schema file1022 undocumented_columns: Columns missing documentation -- descriptions will be inherited and injected into schema file where prior knowledge exists1023 extra_columns: Columns in schema file not in database -- will be removed from schema file1024 """1025 missing_columns = [1026 x for x in database_columns if x.lower() not in (y.lower() for y in yaml_columns)1027 ]1028 undocumented_columns = [1029 x for x in database_columns if x.lower() not in (y.lower() for y in documented_columns)1030 ]1031 extra_columns = [1032 x for x in yaml_columns if x.lower() not in (y.lower() for y in database_columns)1033 ]1034 return missing_columns, undocumented_columns, extra_columns1035 def propagate_documentation_downstream(self, force_inheritance: bool = False) -> None:1036 schema_map = self.build_schema_folder_mapping()1037 with self.adapter.connection_named("dbt-osmosis"):1038 for unique_id, node in track(list(self.filtered_models())):1039 logger().info("\n:point_right: Processing model: [bold]%s[/bold] \n", unique_id)1040 # Get schema file path, must exist to propagate documentation1041 schema_path: Optional[SchemaFileLocation] = schema_map.get(unique_id)1042 if schema_path is None or schema_path.current is None:1043 logger().info(1044 ":bow: No valid schema file found for model %s", unique_id1045 ) # We can't take action1046 continue1047 # Build Sets1048 database_columns: Set[str] = set(self.get_columns(node))1049 yaml_columns: Set[str] = set(column for column in node.columns)1050 if not database_columns:1051 logger().info(1052 ":safety_vest: Unable to resolve columns in database, falling back to using yaml columns as base column set\n"1053 )1054 database_columns = yaml_columns1055 # Get documentated columns1056 documented_columns: Set[str] = set(1057 column1058 for column, info in node.columns.items()1059 if info.description and info.description not in self.placeholders1060 )1061 # Queue1062 missing_columns, undocumented_columns, extra_columns = self.get_column_sets(1063 database_columns, yaml_columns, documented_columns1064 )1065 if force_inheritance:1066 # Consider all columns "undocumented" so that inheritance is not selective1067 undocumented_columns = database_columns1068 # Engage1069 n_cols_added = 01070 n_cols_doc_inherited = 01071 n_cols_removed = 01072 if len(missing_columns) > 0 or len(undocumented_columns) or len(extra_columns) > 0:1073 schema_file = self.yaml_handler.load(schema_path.current)1074 (1075 n_cols_added,1076 n_cols_doc_inherited,1077 n_cols_removed,1078 ) = self.update_schema_file_and_node(1079 missing_columns,1080 undocumented_columns,1081 extra_columns,1082 node,1083 schema_file,1084 )1085 if n_cols_added + n_cols_doc_inherited + n_cols_removed > 0:1086 # Dump the mutated schema file back to the disk1087 if not self.dry_run:1088 self.yaml_handler.dump(schema_file, schema_path.current)1089 logger().info(":sparkles: Schema file updated")1090 # Print Audit Report1091 n_cols = float(len(database_columns))1092 n_cols_documented = float(len(documented_columns)) + n_cols_doc_inherited1093 perc_coverage = (1094 min(100.0 * round(n_cols_documented / n_cols, 3), 100.0)1095 if n_cols > 01096 else "Unable to Determine"1097 )1098 logger().info(1099 self.audit_report.format(1100 database=node.database,1101 schema=node.schema,1102 table=node.name,1103 total_columns=n_cols,1104 n_cols_added=n_cols_added,1105 n_cols_doc_inherited=n_cols_doc_inherited,1106 n_cols_removed=n_cols_removed,1107 coverage=perc_coverage,1108 )1109 )1110 @staticmethod1111 def remove_columns_not_in_database(1112 extra_columns: Iterable[str],1113 node: ManifestNode,1114 yaml_file_model_section: Dict[str, Any],1115 ) -> int:1116 """Removes columns found in dbt model that do not exist in database from both node and model simultaneously1117 THIS MUTATES THE NODE AND MODEL OBJECTS so that state is always accurate"""1118 changes_committed = 01119 for column in extra_columns:1120 node.columns.pop(column, None)1121 yaml_file_model_section["columns"] = [1122 c for c in yaml_file_model_section["columns"] if c["name"] != column1123 ]1124 changes_committed += 11125 logger().info(":wrench: Removing column %s from dbt schema", column)1126 return changes_committed1127 def update_undocumented_columns_with_prior_knowledge(1128 self,1129 undocumented_columns: Iterable[str],1130 node: ManifestNode,1131 yaml_file_model_section: Dict[str, Any],1132 ) -> int:1133 """Update undocumented columns with prior knowledge in node and model simultaneously1134 THIS MUTATES THE NODE AND MODEL OBJECTS so that state is always accurate"""1135 knowledge = self.get_node_columns_with_inherited_knowledge(node)1136 inheritables = ("description", "tags", "meta")1137 changes_committed = 01138 for column in undocumented_columns:1139 prior_knowledge = knowledge.get(column, {})1140 progenitor = prior_knowledge.pop("progenitor", "Unknown")1141 prior_knowledge = {k: v for k, v in prior_knowledge.items() if k in inheritables}1142 if not prior_knowledge:1143 continue1144 if column not in node.columns:1145 node.columns[column] = ColumnInfo.from_dict({"name": column, **prior_knowledge})1146 else:1147 node.columns[column].replace(kwargs={"name": column, **prior_knowledge})1148 for model_column in yaml_file_model_section["columns"]:1149 if model_column["name"] == column:...
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