1 # SPDX-License-Identifier: GPL-2.0-only
3 # This file is part of Nominatim. (https://nominatim.org)
5 # Copyright (C) 2022 by the Nominatim developer community.
6 # For a full list of authors see the git log.
8 Implementation of 'refresh' subcommand.
10 from typing import Tuple, Optional
13 from pathlib import Path
15 from nominatim.config import Configuration
16 from nominatim.db.connection import connect
17 from nominatim.tokenizer.base import AbstractTokenizer
18 from nominatim.clicmd.args import NominatimArgs
20 # Do not repeat documentation of subcommand classes.
21 # pylint: disable=C0111
22 # Using non-top-level imports to avoid eventually unused imports.
23 # pylint: disable=E0012,C0415
25 LOG = logging.getLogger()
27 def _parse_osm_object(obj: str) -> Tuple[str, int]:
28 """ Parse the given argument into a tuple of OSM type and ID.
29 Raises an ArgumentError if the format is not recognized.
31 if len(obj) < 2 or obj[0].lower() not in 'nrw' or not obj[1:].isdigit():
32 raise argparse.ArgumentTypeError("Cannot parse OSM ID. Expect format: [N|W|R]<id>.")
34 return (obj[0].upper(), int(obj[1:]))
39 Recompute auxiliary data used by the indexing process.
41 This sub-commands updates various static data and functions in the database.
42 It usually needs to be run after changing various aspects of the
43 configuration. The configuration documentation will mention the exact
44 command to use in such case.
46 Warning: the 'update' command must not be run in parallel with other update
47 commands like 'replication' or 'add-data'.
49 def __init__(self) -> None:
50 self.tokenizer: Optional[AbstractTokenizer] = None
52 def add_args(self, parser: argparse.ArgumentParser) -> None:
53 group = parser.add_argument_group('Data arguments')
54 group.add_argument('--postcodes', action='store_true',
55 help='Update postcode centroid table')
56 group.add_argument('--word-tokens', action='store_true',
57 help='Clean up search terms')
58 group.add_argument('--word-counts', action='store_true',
59 help='Compute frequency of full-word search terms')
60 group.add_argument('--address-levels', action='store_true',
61 help='Reimport address level configuration')
62 group.add_argument('--functions', action='store_true',
63 help='Update the PL/pgSQL functions in the database')
64 group.add_argument('--wiki-data', action='store_true',
65 help='Update Wikipedia/data importance numbers')
66 group.add_argument('--secondary-importance', action='store_true',
67 help='Update secondary importance raster data')
68 group.add_argument('--importance', action='store_true',
69 help='Recompute place importances (expensive!)')
70 group.add_argument('--website', action='store_true',
71 help='Refresh the directory that serves the scripts for the web API')
72 group.add_argument('--data-object', action='append',
73 type=_parse_osm_object, metavar='OBJECT',
74 help='Mark the given OSM object as requiring an update'
75 ' (format: [NWR]<id>)')
76 group.add_argument('--data-area', action='append',
77 type=_parse_osm_object, metavar='OBJECT',
78 help='Mark the area around the given OSM object as requiring an update'
79 ' (format: [NWR]<id>)')
81 group = parser.add_argument_group('Arguments for function refresh')
82 group.add_argument('--no-diff-updates', action='store_false', dest='diffs',
83 help='Do not enable code for propagating updates')
84 group.add_argument('--enable-debug-statements', action='store_true',
85 help='Enable debug warning statements in functions')
88 def run(self, args: NominatimArgs) -> int: #pylint: disable=too-many-branches, too-many-statements
89 from ..tools import refresh, postcodes
90 from ..indexer.indexer import Indexer
94 if postcodes.can_compute(args.config.get_libpq_dsn()):
95 LOG.warning("Update postcodes centroid")
96 tokenizer = self._get_tokenizer(args.config)
97 postcodes.update_postcodes(args.config.get_libpq_dsn(),
98 args.project_dir, tokenizer)
99 indexer = Indexer(args.config.get_libpq_dsn(), tokenizer,
101 indexer.index_postcodes()
103 LOG.error("The place table doesn't exist. "
104 "Postcode updates on a frozen database is not possible.")
107 LOG.warning('Updating word tokens')
108 tokenizer = self._get_tokenizer(args.config)
109 tokenizer.update_word_tokens()
112 LOG.warning('Recompute word statistics')
113 self._get_tokenizer(args.config).update_statistics(args.config,
114 threads=args.threads or 1)
116 if args.address_levels:
117 LOG.warning('Updating address levels')
118 with connect(args.config.get_libpq_dsn()) as conn:
119 refresh.load_address_levels_from_config(conn, args.config)
121 # Attention: must come BEFORE functions
122 if args.secondary_importance:
123 with connect(args.config.get_libpq_dsn()) as conn:
124 # If the table did not exist before, then the importance code
125 # needs to be enabled.
126 if not conn.table_exists('secondary_importance'):
127 args.functions = True
129 LOG.warning('Import secondary importance raster data from %s', args.project_dir)
130 if refresh.import_secondary_importance(args.config.get_libpq_dsn(),
131 args.project_dir) > 0:
132 LOG.fatal('FATAL: Cannot update secondary importance raster data')
136 LOG.warning('Create functions')
137 with connect(args.config.get_libpq_dsn()) as conn:
138 refresh.create_functions(conn, args.config,
139 args.diffs, args.enable_debug_statements)
140 self._get_tokenizer(args.config).update_sql_functions(args.config)
143 data_path = Path(args.config.WIKIPEDIA_DATA_PATH
145 LOG.warning('Import wikipedia article importance from %s', data_path)
146 if refresh.import_wikipedia_articles(args.config.get_libpq_dsn(),
148 LOG.fatal('FATAL: Wikipedia importance file not found in %s', data_path)
151 # Attention: importance MUST come after wiki data import.
153 LOG.warning('Update importance values for database')
154 with connect(args.config.get_libpq_dsn()) as conn:
155 refresh.recompute_importance(conn)
158 webdir = args.project_dir / 'website'
159 LOG.warning('Setting up website directory at %s', webdir)
160 # This is a little bit hacky: call the tokenizer setup, so that
161 # the tokenizer directory gets repopulated as well, in case it
163 self._get_tokenizer(args.config)
164 with connect(args.config.get_libpq_dsn()) as conn:
165 refresh.setup_website(webdir, args.config, conn)
167 if args.data_object or args.data_area:
168 with connect(args.config.get_libpq_dsn()) as conn:
169 for obj in args.data_object or []:
170 refresh.invalidate_osm_object(*obj, conn, recursive=False)
171 for obj in args.data_area or []:
172 refresh.invalidate_osm_object(*obj, conn, recursive=True)
178 def _get_tokenizer(self, config: Configuration) -> AbstractTokenizer:
179 if self.tokenizer is None:
180 from ..tokenizer import factory as tokenizer_factory
182 self.tokenizer = tokenizer_factory.get_tokenizer_for_db(config)
184 return self.tokenizer