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
  52     @staticmethod
  53     def run(args):
  54         from ..tools import database_import
  55
  56         if args.create_db:
  57             LOG.warning('Create DB')
  58             database_import.create_db(args.config.get_libpq_dsn())
  59
  60         if args.setup_db:
  61             LOG.warning('Setup DB')
  62
  63             with connect(args.config.get_libpq_dsn()) as conn:
  64                 database_import.setup_extensions(conn)
  65                 database_import.install_module(args.module_dir, args.project_dir,
  66                                                args.config.DATABASE_MODULE_PATH,
  67                                                conn=conn)
  68
  69             database_import.import_base_data(args.config.get_libpq_dsn(),
  70                                              args.data_dir, args.no_partitions)
  71
  72         if args.import_data:
  73             LOG.warning('Import data')
  74             if not args.osm_file:
  75                 raise UsageError('Missing required --osm-file argument')
  76             database_import.import_osm_data(Path(args.osm_file),
  77                                             args.osm2pgsql_options(0, 1),
  78                                             drop=args.drop)
  79
  80         if args.load_data:
  81             LOG.warning('Load data')
  82             with connect(args.config.get_libpq_dsn()) as conn:
  83                 database_import.truncate_data_tables(conn, args.config.MAX_WORD_FREQUENCY)
  84             database_import.load_data(args.config.get_libpq_dsn(),
  85                                       args.data_dir,
  86                                       args.threads or 1)
  87
  88             with connect(args.config.get_libpq_dsn()) as conn:
  89                 try:
  90                     status.set_status(conn, status.compute_database_date(conn))
  91                 except Exception as exc: # pylint: disable=broad-except
  92                     LOG.error('Cannot determine date of database: %s', exc)
  93
  94         if args.index:
  95             LOG.warning('Indexing')
  96             from ..indexer.indexer import Indexer
  97             indexer = Indexer(args.config.get_libpq_dsn(), args.threads or 1)
  98             indexer.index_full()