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Code Issues Releases Wiki Activity

Use power of LazyInitialise to murder TFW/TAOENV global state

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This commit is contained in:
Kristóf Tóth 2018-06-01 14:00:44 +02:00
parent 06c2fc97ad
commit 8817f991a5
3 changed files with 20 additions and 9 deletions
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19
lib/envvars/__init__.py
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@ -4,9 +4,20 @@
from collections import namedtuple
from os import environ
from tfw.decorators import LazyInitialise
def prefixed_envvars_to_namedtuple(prefix: str, tuple_name: str):
envvars = {envvar.replace(prefix, '', 1): environ.get(envvar)
class LazyEnvironment:
def __init__(self, prefix, tuple_name):
self._prefix = prefix
self._tuple_name = tuple_name
@LazyInitialise
def environment(self):
return self.prefixed_envvars_to_namedtuple()
def prefixed_envvars_to_namedtuple(self):
envvars = {envvar.replace(self._prefix, '', 1): environ.get(envvar)
for envvar in environ.keys()
if envvar.startswith(prefix)}
return namedtuple(tuple_name, envvars)(**envvars)
if envvar.startswith(self._prefix)}
return namedtuple(self._tuple_name, envvars)(**envvars)

4
lib/tao/config/envvars.py
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@ -1,6 +1,6 @@
# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
# All Rights Reserved. See LICENSE file for details.
from envvars import prefixed_envvars_to_namedtuple
from envvars import LazyEnvironment
TAOENV = prefixed_envvars_to_namedtuple('AVATAO_', 'taoenvtuple')
TAOENV = LazyEnvironment('AVATAO_', 'taoenvtuple').environment

4
lib/tfw/config/envvars.py
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@ -1,6 +1,6 @@
# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
# All Rights Reserved. See LICENSE file for details.
from envvars import prefixed_envvars_to_namedtuple
from envvars import LazyEnvironment
TFWENV = prefixed_envvars_to_namedtuple('TFW_', 'tfwenvtuple')
TFWENV = LazyEnvironment('TFW_', 'tfwenvtuple').environment