HGKeeper

# vi:et:ts=4 sw=4 sts=4

# envconfig2: easily read your config from the environment

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software Foundation,

# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

import json as realjson

import os

import urlparse

__version__ = '0.3'

prefix = None

prefix_required = False

def find_variable(name, required):

names = []

if prefix:

names.append('{}_{}'.format(prefix, name))

if not prefix_required:

names.append(name)

for name in names:

if name in os.environ:

return name

if required:

msg = 'required environment variable {} not set'.format(name)

raise ValueError(msg)

return None

def boolean(name, default=None, required=False):