mirror of
https://github.com/osm-search/Nominatim.git
synced 2024-09-21 07:58:07 +03:00
107 lines
3.5 KiB
Python
107 lines
3.5 KiB
Python
"""
|
|
Nominatim configuration accessor.
|
|
"""
|
|
import logging
|
|
import os
|
|
from pathlib import Path
|
|
|
|
from dotenv import dotenv_values
|
|
|
|
from .errors import UsageError
|
|
|
|
LOG = logging.getLogger()
|
|
|
|
class Configuration:
|
|
""" Load and manage the project configuration.
|
|
|
|
Nominatim uses dotenv to configure the software. Configuration options
|
|
are resolved in the following order:
|
|
|
|
* from the OS environment (or the dirctionary given in `environ`
|
|
* from the .env file in the project directory of the installation
|
|
* from the default installation in the configuration directory
|
|
|
|
All Nominatim configuration options are prefixed with 'NOMINATIM_' to
|
|
avoid conflicts with other environment variables.
|
|
"""
|
|
|
|
def __init__(self, project_dir, config_dir, environ=None):
|
|
self.environ = environ or os.environ
|
|
self.project_dir = project_dir
|
|
self.config_dir = config_dir
|
|
self._config = dotenv_values(str((config_dir / 'env.defaults').resolve()))
|
|
if project_dir is not None:
|
|
self._config.update(dotenv_values(str((project_dir / '.env').resolve())))
|
|
|
|
# Add defaults for variables that are left empty to set the default.
|
|
# They may still be overwritten by environment variables.
|
|
if not self._config['NOMINATIM_ADDRESS_LEVEL_CONFIG']:
|
|
self._config['NOMINATIM_ADDRESS_LEVEL_CONFIG'] = \
|
|
str(config_dir / 'address-levels.json')
|
|
|
|
|
|
def __getattr__(self, name):
|
|
name = 'NOMINATIM_' + name
|
|
|
|
return self.environ.get(name) or self._config[name]
|
|
|
|
def get_bool(self, name):
|
|
""" Return the given configuration parameter as a boolean.
|
|
Values of '1', 'yes' and 'true' are accepted as truthy values,
|
|
everything else is interpreted as false.
|
|
"""
|
|
return self.__getattr__(name).lower() in ('1', 'yes', 'true')
|
|
|
|
|
|
def get_int(self, name):
|
|
""" Return the given configuration parameter as an int.
|
|
"""
|
|
try:
|
|
return int(self.__getattr__(name))
|
|
except ValueError:
|
|
LOG.fatal("Invalid setting NOMINATIM_%s. Needs to be a number.", name)
|
|
raise UsageError("Configuration error.")
|
|
|
|
|
|
def get_libpq_dsn(self):
|
|
""" Get configured database DSN converted into the key/value format
|
|
understood by libpq and psycopg.
|
|
"""
|
|
dsn = self.DATABASE_DSN
|
|
|
|
def quote_param(param):
|
|
key, val = param.split('=')
|
|
val = val.replace('\\', '\\\\').replace("'", "\\'")
|
|
if ' ' in val:
|
|
val = "'" + val + "'"
|
|
return key + '=' + val
|
|
|
|
if dsn.startswith('pgsql:'):
|
|
# Old PHP DSN format. Convert before returning.
|
|
return ' '.join([quote_param(p) for p in dsn[6:].split(';')])
|
|
|
|
return dsn
|
|
|
|
|
|
def get_import_style_file(self):
|
|
""" Return the import style file as a path object. Translates the
|
|
name of the standard styles automatically into a file in the
|
|
config style.
|
|
"""
|
|
style = self.__getattr__('IMPORT_STYLE')
|
|
|
|
if style in ('admin', 'street', 'address', 'full', 'extratags'):
|
|
return self.config_dir / 'import-{}.style'.format(style)
|
|
|
|
return Path(style)
|
|
|
|
|
|
def get_os_env(self):
|
|
""" Return a copy of the OS environment with the Nominatim configuration
|
|
merged in.
|
|
"""
|
|
env = dict(self._config)
|
|
env.update(self.environ)
|
|
|
|
return env
|