# SPDX-License-Identifier: GPL-2.0-only # # This file is part of Nominatim. (https://nominatim.org) # # Copyright (C) 2022 by the Nominatim developer community. # For a full list of authors see the git log. """ Implementation of the 'import' subcommand. """ from typing import Optional import argparse import logging from pathlib import Path import psutil from nominatim.config import Configuration from nominatim.db.connection import connect from nominatim.db import status, properties from nominatim.tokenizer.base import AbstractTokenizer from nominatim.version import NOMINATIM_VERSION from nominatim.clicmd.args import NominatimArgs from nominatim.errors import UsageError # Do not repeat documentation of subcommand classes. # pylint: disable=C0111 # Using non-top-level imports to avoid eventually unused imports. # pylint: disable=C0415 LOG = logging.getLogger() class SetupAll: """\ Create a new Nominatim database from an OSM file. This sub-command sets up a new Nominatim database from scratch starting with creating a new database in Postgresql. The user running this command needs superuser rights on the database. """ def add_args(self, parser: argparse.ArgumentParser) -> None: group_name = parser.add_argument_group('Required arguments') group1 = group_name.add_mutually_exclusive_group(required=True) group1.add_argument('--osm-file', metavar='FILE', action='append', help='OSM file to be imported' ' (repeat for importing multiple files)') group1.add_argument('--continue', dest='continue_at', choices=['load-data', 'indexing', 'db-postprocess'], help='Continue an import that was interrupted') group2 = parser.add_argument_group('Optional arguments') group2.add_argument('--osm2pgsql-cache', metavar='SIZE', type=int, help='Size of cache to be used by osm2pgsql (in MB)') group2.add_argument('--reverse-only', action='store_true', help='Do not create tables and indexes for searching') group2.add_argument('--no-partitions', action='store_true', help=("Do not partition search indices " "(speeds up import of single country extracts)")) group2.add_argument('--no-updates', action='store_true', help="Do not keep tables that are only needed for " "updating the database later") group2.add_argument('--offline', action='store_true', help="Do not attempt to load any additional data from the internet") group3 = parser.add_argument_group('Expert options') group3.add_argument('--ignore-errors', action='store_true', help='Continue import even when errors in SQL are present') group3.add_argument('--index-noanalyse', action='store_true', help='Do not perform analyse operations during index (expert only)') group3.add_argument('--only-import-data', action='store_true', help='Do not attempt to create the database') group3.add_argument('--only-prepare-database', action='store_true', help='Create the database but do not import any data') def run(self, args: NominatimArgs) -> int: # pylint: disable=too-many-statements from ..data import country_info from ..tools import database_import, refresh, postcodes, freeze from ..indexer.indexer import Indexer num_threads = args.threads or psutil.cpu_count() or 1 country_info.setup_country_config(args.config) if args.continue_at is None: files = args.get_osm_file_list() if not files and not args.only_prepare_database: raise UsageError("No input files (use --osm-file).") if args.only_import_data and args.only_prepare_database: raise UsageError( "Cannot use --only-import-data and --only-prepare-database together." ) if args.only_prepare_database or self._is_complete_import(args): LOG.warning('Creating database') database_import.setup_database_skeleton(args.config.get_libpq_dsn(), rouser=args.config.DATABASE_WEBUSER) if not self._is_complete_import(args): return 0 if not args.only_prepare_database or \ args.only_import_data or \ self._is_complete_import(args): # Check if the correct plugins are installed database_import.check_existing_database_plugins(args.config.get_libpq_dsn()) LOG.warning('Setting up country tables') country_info.setup_country_tables(args.config.get_libpq_dsn(), args.config.lib_dir.data, args.no_partitions) LOG.warning('Importing OSM data file') database_import.import_osm_data(files, args.osm2pgsql_options(0, 1), drop=args.no_updates, ignore_errors=args.ignore_errors) LOG.warning('Importing wikipedia importance data') data_path = Path(args.config.WIKIPEDIA_DATA_PATH or args.project_dir) if refresh.import_wikipedia_articles(args.config.get_libpq_dsn(), data_path) > 0: LOG.error('Wikipedia importance dump file not found. ' 'Calculating importance values of locations will not ' 'use Wikipedia importance data.') LOG.warning('Importing secondary importance raster data') if refresh.import_secondary_importance(args.config.get_libpq_dsn(), args.project_dir) != 0: LOG.error('Secondary importance file not imported. ' 'Falling back to default ranking.') self._setup_tables(args.config, args.reverse_only) if args.continue_at is None or args.continue_at == 'load-data': LOG.warning('Initialise tables') with connect(args.config.get_libpq_dsn()) as conn: database_import.truncate_data_tables(conn) LOG.warning('Load data into placex table') database_import.load_data(args.config.get_libpq_dsn(), num_threads) LOG.warning("Setting up tokenizer") tokenizer = self._get_tokenizer(args.continue_at, args.config) if args.continue_at is None or args.continue_at == 'load-data': LOG.warning('Calculate postcodes') postcodes.update_postcodes(args.config.get_libpq_dsn(), args.project_dir, tokenizer) if args.continue_at is None or args.continue_at in ('load-data', 'indexing'): LOG.warning('Indexing places') indexer = Indexer(args.config.get_libpq_dsn(), tokenizer, num_threads) indexer.index_full(analyse=not args.index_noanalyse) LOG.warning('Post-process tables') with connect(args.config.get_libpq_dsn()) as conn: database_import.create_search_indices(conn, args.config, drop=args.no_updates, threads=num_threads) LOG.warning('Create search index for default country names.') country_info.create_country_names(conn, tokenizer, args.config.get_str_list('LANGUAGES')) if args.no_updates: freeze.drop_update_tables(conn) tokenizer.finalize_import(args.config) LOG.warning('Recompute word counts') tokenizer.update_statistics() webdir = args.project_dir / 'website' LOG.warning('Setup website at %s', webdir) with connect(args.config.get_libpq_dsn()) as conn: refresh.setup_website(webdir, args.config, conn) self._finalize_database(args.config.get_libpq_dsn(), args.offline) return 0 def _is_complete_import(self, args: NominatimArgs) -> bool: """ Determine if the import is complete or if only the database should be prepared. """ return not args.only_import_data and not args.only_prepare_database def _setup_tables(self, config: Configuration, reverse_only: bool) -> None: """ Set up the basic database layout: tables, indexes and functions. """ from ..tools import database_import, refresh with connect(config.get_libpq_dsn()) as conn: LOG.warning('Create functions (1st pass)') refresh.create_functions(conn, config, False, False) LOG.warning('Create tables') database_import.create_tables(conn, config, reverse_only=reverse_only) refresh.load_address_levels_from_config(conn, config) LOG.warning('Create functions (2nd pass)') refresh.create_functions(conn, config, False, False) LOG.warning('Create table triggers') database_import.create_table_triggers(conn, config) LOG.warning('Create partition tables') database_import.create_partition_tables(conn, config) LOG.warning('Create functions (3rd pass)') refresh.create_functions(conn, config, False, False) def _get_tokenizer(self, continue_at: Optional[str], config: Configuration) -> AbstractTokenizer: """ Set up a new tokenizer or load an already initialised one. """ from ..tokenizer import factory as tokenizer_factory if continue_at is None or continue_at == 'load-data': # (re)initialise the tokenizer data return tokenizer_factory.create_tokenizer(config) # just load the tokenizer return tokenizer_factory.get_tokenizer_for_db(config) def _finalize_database(self, dsn: str, offline: bool) -> None: """ Determine the database date and set the status accordingly. """ with connect(dsn) as conn: if not offline: try: dbdate = status.compute_database_date(conn) status.set_status(conn, dbdate) LOG.info('Database is at %s.', dbdate) except Exception as exc: # pylint: disable=broad-except LOG.error('Cannot determine date of database: %s', exc) properties.set_property(conn, 'database_version', str(NOMINATIM_VERSION))