Nominatim configuration accessor.
"""
from typing import Dict, Any, List, Mapping, Optional
+import importlib.util
import logging
import os
+import sys
from pathlib import Path
import json
import yaml
from dotenv import dotenv_values
+from psycopg2.extensions import parse_dsn
from nominatim.typing import StrPath
from nominatim.errors import UsageError
+import nominatim.paths
LOG = logging.getLogger()
CONFIG_CACHE : Dict[str, Any] = {}
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 OS environment (or the dictionary given in `environ`)
* from the .env file in the project directory of the installation
* from the default installation in the configuration directory
avoid conflicts with other environment variables.
"""
- def __init__(self, project_dir: Path, config_dir: Path,
+ def __init__(self, project_dir: Optional[Path],
environ: Optional[Mapping[str, str]] = None) -> 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 and (project_dir / '.env').is_file():
- self._config.update(dotenv_values(str((project_dir / '.env').resolve())))
+ self.config_dir = nominatim.paths.CONFIG_DIR
+ self._config = dotenv_values(str(self.config_dir / 'env.defaults'))
+ if self.project_dir is not None and (self.project_dir / '.env').is_file():
+ self.project_dir = self.project_dir.resolve()
+ self._config.update(dotenv_values(str(self.project_dir / '.env')))
class _LibDirs:
module: Path
osm2pgsql: Path
- php: Path
- sql: Path
- data: Path
+ php = nominatim.paths.PHPLIB_DIR
+ sql = nominatim.paths.SQLLIB_DIR
+ data = nominatim.paths.DATA_DIR
self.lib_dir = _LibDirs()
+ self._private_plugins: Dict[str, object] = {}
def set_libdirs(self, **kwargs: StrPath) -> None:
""" Set paths to library functions and data.
"""
for key, value in kwargs.items():
- setattr(self.lib_dir, key, Path(value).resolve())
+ setattr(self.lib_dir, key, Path(value))
def __getattr__(self, name: str) -> str:
cfgpath = Path(value)
if not cfgpath.is_absolute():
+ assert self.project_dir is not None
cfgpath = self.project_dir / cfgpath
return cfgpath.resolve()
return dsn
+ def get_database_params(self) -> Mapping[str, str]:
+ """ Get the configured parameters for the database connection
+ as a mapping.
+ """
+ dsn = self.DATABASE_DSN
+
+ if dsn.startswith('pgsql:'):
+ return dict((p.split('=', 1) for p in dsn[6:].split(';')))
+
+ return parse_dsn(dsn)
+
+
def get_import_style_file(self) -> Path:
""" Return the import style file as a path object. Translates the
name of the standard styles automatically into a file in the
style = getattr(self, 'IMPORT_STYLE')
if style in ('admin', 'street', 'address', 'full', 'extratags'):
- return self.config_dir / f'import-{style}.style'
+ return self.config_dir / f'import-{style}.lua'
return self.find_config_file('', 'IMPORT_STYLE')
- def get_os_env(self) -> Dict[str, Optional[str]]:
+ def get_os_env(self) -> Dict[str, str]:
""" Return a copy of the OS environment with the Nominatim configuration
merged in.
"""
- env = dict(self._config)
+ env = {k: v for k, v in self._config.items() if v is not None}
env.update(self.environ)
return env
return result
+ def load_plugin_module(self, module_name: str, internal_path: str) -> Any:
+ """ Load a Python module as a plugin.
+
+ The module_name may have three variants:
+
+ * A name without any '.' is assumed to be an internal module
+ and will be searched relative to `internal_path`.
+ * If the name ends in `.py`, module_name is assumed to be a
+ file name relative to the project directory.
+ * Any other name is assumed to be an absolute module name.
+
+ In either of the variants the module name must start with a letter.
+ """
+ if not module_name or not module_name[0].isidentifier():
+ raise UsageError(f'Invalid module name {module_name}')
+
+ if '.' not in module_name:
+ module_name = module_name.replace('-', '_')
+ full_module = f'{internal_path}.{module_name}'
+ return sys.modules.get(full_module) or importlib.import_module(full_module)
+
+ if module_name.endswith('.py'):
+ if self.project_dir is None or not (self.project_dir / module_name).exists():
+ raise UsageError(f"Cannot find module '{module_name}' in project directory.")
+
+ if module_name in self._private_plugins:
+ return self._private_plugins[module_name]
+
+ file_path = str(self.project_dir / module_name)
+ spec = importlib.util.spec_from_file_location(module_name, file_path)
+ if spec:
+ module = importlib.util.module_from_spec(spec)
+ # Do not add to global modules because there is no standard
+ # module name that Python can resolve.
+ self._private_plugins[module_name] = module
+ assert spec.loader is not None
+ spec.loader.exec_module(module)
+
+ return module
+
+ return sys.modules.get(module_name) or importlib.import_module(module_name)
+
+
def find_config_file(self, filename: StrPath,
config: Optional[str] = None) -> Path:
""" Resolve the location of a configuration file given a filename and
projects / nominatim.git / blobdiff