hydra_isse_791_2

hydra_isse_791_2.py

# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved
from dataclasses import dataclass
from typing import Any

from omegaconf import MISSING, DictConfig, OmegaConf

import hydra
from hydra.core.config_store import ConfigStore
from hydra.types import ObjectConf

cs = ConfigStore.instance()


def name_print(name):
    print(name)


@dataclass
class NameConf:
    name: str = ""


cs.store(
    group="fn",
    name="NR",
    node=ObjectConf(target="my_app.name_print", params=NameConf(),),
)


@dataclass
class MySQLConfig:
    driver: str = "mysql"
    host: str = "localhost"
    port: int = 3306


@dataclass
class PostGreSQLConfig:
    driver: str = "postgresql"
    host: str = "localhost"
    port: int = 5432
    timeout: int = 10


# Config is extending DictConfig to allow type safe access to the pretty() function below
@dataclass
class Config(DictConfig):
    db: Any = MISSING
    fn: Any = MISSING


cs.store(name="config", node=Config)
cs.store(group="db", name="mysql", node=MySQLConfig)
cs.store(group="db", name="postgresql", node=PostGreSQLConfig)


@hydra.main(config_name="config")
def my_app(cfg: Config) -> None:
    hydra.utils.instantiate(cfg.fn)
    print(cfg.pretty())


if __name__ == "__main__":
    my_app()