Source code for invenio_config.env

# -*- coding: utf-8 -*-
# This file is part of Invenio.
# Copyright (C) 2015-2018 CERN.
# Invenio is free software; you can redistribute it and/or modify it
# under the terms of the MIT License; see LICENSE file for more details.

"""Invenio environment configuration."""

from __future__ import absolute_import, print_function

import ast

import os

[docs]class InvenioConfigEnvironment(object): """Load configuration from environment variables. .. versionadded:: 1.0.0 """ def __init__(self, app=None, prefix='INVENIO_'): """Initialize extension.""" self.prefix = prefix if app: self.init_app(app)
[docs] def init_app(self, app): """Initialize Flask application.""" prefix_len = len(self.prefix) for varname, value in os.environ.items(): if not varname.startswith(self.prefix): continue # Prepare values varname = varname[prefix_len:] value = value or app.config.get(varname) # Evaluate value try: value = ast.literal_eval(value) except (SyntaxError, ValueError): pass # Set value app.config[varname] = value