nominatim/clicmd/transition.py

   1 """
   2 Implementation of the 'transition' subcommand.
   3
   4 This subcommand provides standins for functions that were available
   5 through the PHP scripts but are now no longer directly accessible.
   6 This module will be removed as soon as the transition phase is over.
   7 """
   8 import logging
   9 from pathlib import Path
  10
  11 from ..db.connection import connect
  12 from ..db import status
  13 from ..errors import UsageError
  14
  15 # Do not repeat documentation of subcommand classes.
  16 # pylint: disable=C0111
  17 # Using non-top-level imports to avoid eventually unused imports.
  18 # pylint: disable=E0012,C0415
  19
  20 LOG = logging.getLogger()
  21
  22 class AdminTransition:
  23     """\
  24     Internal functions for code transition. Do not use.
  25     """
  26
  27     @staticmethod
  28     def add_args(parser):
  29         group = parser.add_argument_group('Sub-functions')
  30         group.add_argument('--create-db', action='store_true',
  31                            help='Create nominatim db')
  32         group.add_argument('--setup-db', action='store_true',
  33                            help='Build a blank nominatim db')
  34         group.add_argument('--import-data', action='store_true',
  35                            help='Import a osm file')
  36         group.add_argument('--load-data', action='store_true',
  37                            help='Copy data to live tables from import table')
  38         group.add_argument('--index', action='store_true',
  39                            help='Index the data')
  40         group = parser.add_argument_group('Options')
  41         group.add_argument('--no-partitions', action='store_true',
  42                            help='Do not partition search indices')
  43         group.add_argument('--osm-file', metavar='FILE',
  44                            help='File to import')
  45         group.add_argument('--drop', action='store_true',
  46                            help='Drop tables needed for updates, making the database readonly')
  47         group.add_argument('--osm2pgsql-cache', metavar='SIZE', type=int,
  48                            help='Size of cache to be used by osm2pgsql (in MB)')
  49         group.add_argument('--no-analyse', action='store_true',
  50                            help='Do not perform analyse operations during index')
  51         group.add_argument('--ignore-errors', action='store_true',
  52                            help="Ignore certain erros on import.")
  53
  54     @staticmethod
  55     def run(args):
  56         from ..tools import database_import
  57
  58         if args.create_db:
  59             LOG.warning('Create DB')
  60             database_import.create_db(args.config.get_libpq_dsn())
  61
  62         if args.setup_db:
  63             LOG.warning('Setup DB')
  64
  65             with connect(args.config.get_libpq_dsn()) as conn:
  66                 database_import.setup_extensions(conn)
  67                 database_import.install_module(args.module_dir, args.project_dir,
  68                                                args.config.DATABASE_MODULE_PATH,
  69                                                conn=conn)
  70
  71             database_import.import_base_data(args.config.get_libpq_dsn(),
  72                                              args.data_dir, args.no_partitions)
  73
  74         if args.import_data:
  75             LOG.warning('Import data')
  76             if not args.osm_file:
  77                 raise UsageError('Missing required --osm-file argument')
  78             database_import.import_osm_data(Path(args.osm_file),
  79                                             args.osm2pgsql_options(0, 1),
  80                                             drop=args.drop,
  81                                             ignore_errors=args.ignore_errors)
  82
  83         if args.load_data:
  84             LOG.warning('Load data')
  85             with connect(args.config.get_libpq_dsn()) as conn:
  86                 database_import.truncate_data_tables(conn, args.config.MAX_WORD_FREQUENCY)
  87             database_import.load_data(args.config.get_libpq_dsn(),
  88                                       args.data_dir,
  89                                       args.threads or 1)
  90
  91             with connect(args.config.get_libpq_dsn()) as conn:
  92                 try:
  93                     status.set_status(conn, status.compute_database_date(conn))
  94                 except Exception as exc: # pylint: disable=broad-except
  95                     LOG.error('Cannot determine date of database: %s', exc)
  96
  97         if args.index:
  98             LOG.warning('Indexing')
  99             from ..indexer.indexer import Indexer
 100             indexer = Indexer(args.config.get_libpq_dsn(), args.threads or 1)
 101             indexer.index_full()