mirror of
https://github.com/osm-search/Nominatim.git
synced 2026-02-16 15:47:58 +00:00
5b46fcad8e
The new functions always creates normal and partitioned functions. Also adds specialised connection and cursor classes for adding frequently used helper functions.
67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
"""
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Nominatim configuration accessor.
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"""
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import os
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from dotenv import dotenv_values
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class Configuration:
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""" Load and manage the project configuration.
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Nominatim uses dotenv to configure the software. Configuration options
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are resolved in the following order:
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* from the OS environment
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* from the .env file in the project directory of the installation
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* from the default installation in the configuration directory
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All Nominatim configuration options are prefixed with 'NOMINATIM_' to
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avoid conflicts with other environment variables.
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"""
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def __init__(self, project_dir, config_dir):
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self.project_dir = project_dir
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self._config = dotenv_values(str((config_dir / 'env.defaults').resolve()))
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if project_dir is not None:
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self._config.update(dotenv_values(str((project_dir / '.env').resolve())))
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# Add defaults for variables that are left empty to set the default.
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# They may still be overwritten by environment variables.
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if not self._config['NOMINATIM_ADDRESS_LEVEL_CONFIG']:
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self._config['NOMINATIM_ADDRESS_LEVEL_CONFIG'] = \
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str(config_dir / 'address-levels.json')
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def __getattr__(self, name):
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name = 'NOMINATIM_' + name
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return os.environ.get(name) or self._config[name]
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def get_bool(self, name):
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""" Return the given configuration parameters as a boolean.
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Values of '1', 'yes' and 'true' are accepted as truthy values,
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everything else is interpreted as false.
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"""
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return self.__getattr__(name).lower() in ('1', 'yes', 'true')
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def get_libpq_dsn(self):
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""" Get configured database DSN converted into the key/value format
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understood by libpq and psycopg.
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"""
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dsn = self.DATABASE_DSN
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if dsn.startswith('pgsql:'):
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# Old PHP DSN format. Convert before returning.
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return dsn[6:].replace(';', ' ')
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return dsn
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def get_os_env(self):
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""" Return a copy of the OS environment with the Nominatim configuration
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merged in.
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"""
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env = dict(self._config)
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env.update(os.environ)
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return env
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