1 # SPDX-License-Identifier: GPL-3.0-or-later
3 # This file is part of Nominatim. (https://nominatim.org)
5 # Copyright (C) 2025 by the Nominatim developer community.
6 # For a full list of authors see the git log.
8 Helper functions for executing external programs.
10 from typing import Any, Mapping, List, Optional
17 from ..db.connection import get_pg_env
18 from ..errors import UsageError
19 from ..version import OSM2PGSQL_REQUIRED_VERSION
21 LOG = logging.getLogger()
24 def run_osm2pgsql(options: Mapping[str, Any]) -> None:
25 """ Run osm2pgsql with the given options.
27 _check_osm2pgsql_version(options['osm2pgsql'])
29 env = get_pg_env(options['dsn'])
31 cmd = [_find_osm2pgsql_cmd(options['osm2pgsql']),
32 '--append' if options['append'] else '--create',
34 '--log-progress', 'true',
35 '--number-processes', '1' if options['append'] else str(options['threads']),
36 '--cache', str(options['osm2pgsql_cache']),
37 '--style', str(options['osm2pgsql_style'])
40 env['LUA_PATH'] = ';'.join((str(options['osm2pgsql_style_path'] / '?.lua'),
41 os.environ.get('LUA_PATH', ';')))
42 env['THEMEPARK_PATH'] = str(options['osm2pgsql_style_path'] / 'themes')
43 if 'THEMEPARK_PATH' in os.environ:
44 env['THEMEPARK_PATH'] += ':' + os.environ['THEMEPARK_PATH']
45 cmd.extend(('--output', 'flex'))
47 for flavour in ('data', 'index'):
48 if options['tablespaces'][f"main_{flavour}"]:
49 env[f"NOMINATIM_TABLESPACE_PLACE_{flavour.upper()}"] = \
50 options['tablespaces'][f"main_{flavour}"]
52 if options['flatnode_file']:
53 cmd.extend(('--flat-nodes', options['flatnode_file']))
55 cmd.extend(_mk_tablespace_options('slim', options))
57 if options.get('disable_jit', False):
58 env['PGOPTIONS'] = '-c jit=off -c max_parallel_workers_per_gather=0'
60 if 'import_data' in options:
61 cmd.extend(('-r', 'xml', '-'))
62 elif isinstance(options['import_file'], list):
63 for fname in options['import_file']:
64 cmd.append(str(fname))
66 cmd.append(str(options['import_file']))
68 subprocess.run(cmd, cwd=options.get('cwd', '.'),
69 input=options.get('import_data'),
73 def _mk_tablespace_options(ttype: str, options: Mapping[str, Any]) -> List[str]:
75 for flavour in ('data', 'index'):
76 if options['tablespaces'][f"{ttype}_{flavour}"]:
77 cmds.extend((f"--tablespace-{ttype}-{flavour}",
78 options['tablespaces'][f"{ttype}_{flavour}"]))
83 def _find_osm2pgsql_cmd(cmdline: Optional[str]) -> str:
87 in_path = shutil.which('osm2pgsql')
89 raise UsageError('osm2pgsql executable not found. Please install osm2pgsql first.')
94 def _check_osm2pgsql_version(cmdline: Optional[str]) -> None:
95 cmd = [_find_osm2pgsql_cmd(cmdline), '--version']
97 result = subprocess.run(cmd, capture_output=True, check=True)
100 raise UsageError("osm2pgsql does not print version information.")
102 verinfo = result.stderr.decode('UTF-8')
104 match = re.search(r'osm2pgsql version (\d+)\.(\d+)', verinfo)
106 raise UsageError(f"No version information found in output: {verinfo}")
108 if (int(match[1]), int(match[2])) < OSM2PGSQL_REQUIRED_VERSION:
109 raise UsageError(f"osm2pgsql is too old. Found version {match[1]}.{match[2]}. "
110 f"Need at least version {'.'.join(map(str, OSM2PGSQL_REQUIRED_VERSION))}.")