56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
import os
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from pathlib import Path
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from flask import Flask
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from config import CONFIGS
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from .extensions import csrf, db, login_manager, migrate
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def create_app(config_name: str | None = None) -> Flask:
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"""Create and configure an isolated Steady application instance."""
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app = Flask(__name__, instance_relative_config=True)
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selected_config = config_name or os.environ.get("STEADY_ENV", "development")
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try:
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app.config.from_object(CONFIGS[selected_config])
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except KeyError as exc:
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valid_names = ", ".join(sorted(CONFIGS))
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raise ValueError(
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f"Unknown configuration {selected_config!r}; choose {valid_names}."
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) from exc
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Path(app.instance_path).mkdir(parents=True, exist_ok=True)
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_validate_config(app)
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_initialize_extensions(app)
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_register_blueprints(app)
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return app
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def _validate_config(app: Flask) -> None:
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if not app.config.get("SECRET_KEY"):
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raise RuntimeError("SECRET_KEY must be set outside development and testing.")
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def _initialize_extensions(app: Flask) -> None:
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db.init_app(app)
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migrate.init_app(app, db)
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login_manager.init_app(app)
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csrf.init_app(app)
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login_manager.login_view = "auth.login"
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login_manager.login_message_category = "info"
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def _register_blueprints(app: Flask) -> None:
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# Imports stay local so feature modules do not create circular imports.
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from .auth import bp as auth_blueprint
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from .core import bp as core_blueprint
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from .tasks import bp as tasks_blueprint
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app.register_blueprint(core_blueprint)
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app.register_blueprint(auth_blueprint, url_prefix="/auth")
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app.register_blueprint(tasks_blueprint, url_prefix="/tasks")
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