# coding=utf-8
"""
Utilities for settings loading
Since envparse modifies os.environ on while loading .env files we need and
alternate solution that wont't touch os.environ by default.
"""
import logging
import re
import shlex
import six
if six.PY3: # pragma: no cover
from pathlib import Path
else:
from pathlib2 import Path # pragma: no cover
log = logging.getLogger(__name__)
[docs]def parse_env(content): # pragma: no cover
# content = six.u(content)
# This comes from evnparse.Env.read_envfile. Kudos!
for line in content.splitlines():
if line.startswith("#"):
continue
tokens = list(shlex.shlex(line, posix=True))
# parses the assignment statement
if len(tokens) < 3:
continue
name, op = tokens[:2]
value = ''.join(tokens[2:])
if op != '=': # noqa
continue
if not re.match(r'[A-Za-z_][A-Za-z_0-9]*', name): # noqa
continue
value = value.replace(r'\n', '\n').replace(r'\t', '\t')
yield name, value
[docs]def get_env_from_file(path):
if not isinstance(path, Path): # pragma: no cover
path = Path(str(path))
return dict(parse_env(path.read_text()))
[docs]def get_key_from_file(env_file=None):
"""This is a utility to ease testing with secrets.env file present or not"""
env_file = env_file or get_default_env_file()
if not env_file.exists():
return None
return get_env_from_file(env_file).get('FAKTUROWNIA_API_TOKEN', None)
[docs]def get_default_env_file():
"""Returns secrets.env from project root, should not be used outside testing"""
return Path(__file__).parents[2] / 'secrets.env'