144 lines
5.1 KiB
Python
144 lines
5.1 KiB
Python
import importlib
|
|
import logging
|
|
from logging.config import dictConfig
|
|
from pathlib import Path
|
|
from typing import Optional
|
|
|
|
from appdirs import AppDirs
|
|
from dynaconf import Dynaconf, Validator
|
|
|
|
import mobilizon_reshare
|
|
from mobilizon_reshare.config import strategies, publishers, notifiers
|
|
from mobilizon_reshare.config.notifiers import notifier_names
|
|
from mobilizon_reshare.config.publishers import publisher_names
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
base_validators = [
|
|
# strategy to decide events to publish
|
|
Validator("selection.strategy", must_exist=True, is_type_of=str),
|
|
# url of the main Mobilizon instance to download events from
|
|
Validator("source.mobilizon.url", must_exist=True, is_type_of=str),
|
|
Validator("source.mobilizon.group", must_exist=True, is_type_of=str),
|
|
Validator("db_url", must_exist=True, is_type_of=str),
|
|
Validator("locale", must_exist=True, is_type_of=str, default="en-us"),
|
|
]
|
|
|
|
activeness_validators = [
|
|
Validator(f"publisher.{publisher_name}.active", must_exist=True, is_type_of=bool)
|
|
for publisher_name in publisher_names
|
|
] + [
|
|
Validator(f"notifier.{notifier_name}.active", must_exist=True, is_type_of=bool)
|
|
for notifier_name in notifier_names
|
|
]
|
|
|
|
|
|
def current_version() -> str:
|
|
with importlib.resources.open_text(mobilizon_reshare, "VERSION") as fp:
|
|
return fp.read()
|
|
|
|
|
|
def init_logging(settings: Optional[Dynaconf] = None):
|
|
if settings is None:
|
|
settings = get_settings()
|
|
dictConfig(settings["logging"])
|
|
|
|
|
|
def get_settings_files_paths() -> Optional[str]:
|
|
|
|
dirs = AppDirs(appname="mobilizon-reshare", version=current_version())
|
|
bundled_settings_ref = importlib.resources.files(
|
|
"mobilizon_reshare"
|
|
) / "settings.toml"
|
|
with importlib.resources.as_file(bundled_settings_ref) as bundled_settings_path:
|
|
for config_path in [
|
|
Path(dirs.user_config_dir, "mobilizon_reshare.toml").absolute(),
|
|
Path(dirs.site_config_dir, "mobilizon_reshare.toml").absolute(),
|
|
bundled_settings_path.absolute(),
|
|
]:
|
|
if config_path and Path(config_path).exists():
|
|
logger.debug(f"Loading configuration from {config_path}")
|
|
return config_path
|
|
|
|
|
|
def build_settings(validators: Optional[list[Validator]] = None) -> Dynaconf:
|
|
"""
|
|
Creates a Dynaconf base object. Configuration files are checked in this order:
|
|
|
|
1. User configuration directory. On Linux that's `$XDG_CONFIG_HOME/mobilizon_reshare/<mobilizon-reshare-version>`;
|
|
2. System configuration directory. On Linux that's the first element of
|
|
`$XDG_CONFIG_DIRS` + `/mobilizon_reshare/<mobilizon-reshare-version>`.
|
|
3. The default configuration distributed with the package.
|
|
|
|
The first available configuration file will be loaded.
|
|
"""
|
|
ENVVAR_PREFIX = "MOBILIZON_RESHARE"
|
|
config = Dynaconf(
|
|
environments=True,
|
|
envvar_prefix=ENVVAR_PREFIX,
|
|
settings_files=get_settings_files_paths(),
|
|
validators=validators or [],
|
|
)
|
|
|
|
# TODO use validation control in dynaconf 3.2.0 once released
|
|
config.validators.validate()
|
|
return config
|
|
|
|
|
|
def build_and_validate_settings() -> Dynaconf:
|
|
"""
|
|
Creates a settings object to be used in the application. It collects and apply generic validators and validators
|
|
specific for each publisher, notifier and publication strategy.
|
|
"""
|
|
|
|
# we first do a preliminary load of the settings without validation. We will later use them to determine which
|
|
# publishers, notifiers and strategy have been selected
|
|
raw_settings = build_settings(validators=activeness_validators)
|
|
|
|
# we retrieve validators that are conditional. Each module will analyze the settings and decide which validators
|
|
# need to be applied.
|
|
strategy_validators = strategies.get_validators(raw_settings)
|
|
publisher_validators = publishers.get_validators(raw_settings)
|
|
notifier_validators = notifiers.get_validators(raw_settings)
|
|
|
|
# we rebuild the settings, providing all the selected validators.
|
|
settings = build_settings(
|
|
base_validators
|
|
+ strategy_validators
|
|
+ publisher_validators
|
|
+ notifier_validators,
|
|
)
|
|
|
|
return settings
|
|
|
|
|
|
# this singleton and functions are necessary to put together
|
|
# the necessities of the testing suite, the CLI and still having a single entrypoint to the config.
|
|
# The CLI needs to provide the settings file at run time so we cannot work at import time.
|
|
# The normal Dynaconf options to specify the settings files are also not a valid option because of the two steps
|
|
# validation that prevents us to employ their mechanism to specify settings files. This could probably be reworked
|
|
# better in the future.
|
|
|
|
|
|
class CustomConfig:
|
|
@classmethod
|
|
def get_instance(cls):
|
|
if not hasattr(cls, "_instance") or cls._instance is None:
|
|
cls._instance = cls()
|
|
return cls._instance
|
|
|
|
def __init__(self):
|
|
self.settings = build_and_validate_settings()
|
|
|
|
@classmethod
|
|
def clear(cls):
|
|
cls._instance = None
|
|
|
|
|
|
def get_settings() -> Dynaconf:
|
|
return CustomConfig.get_instance().settings
|
|
|
|
|
|
def get_settings_without_validation() -> Dynaconf:
|
|
return build_settings()
|