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thefuck/thefuck/conf.py
2015-04-22 23:04:22 +02:00

95 lines
2.7 KiB
Python

from copy import copy
from imp import load_source
import os
import sys
from six import text_type
from . import logs, types
class _DefaultRulesNames(types.RulesNamesList):
def __add__(self, items):
return _DefaultRulesNames(list(self) + items)
def __contains__(self, item):
return item.enabled_by_default or \
super(_DefaultRulesNames, self).__contains__(item)
def __eq__(self, other):
if isinstance(other, _DefaultRulesNames):
return super(_DefaultRulesNames, self).__eq__(other)
else:
return False
DEFAULT_RULES = _DefaultRulesNames([])
DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
'wait_command': 3,
'require_confirmation': False,
'no_colors': False}
ENV_TO_ATTR = {'THEFUCK_RULES': 'rules',
'THEFUCK_WAIT_COMMAND': 'wait_command',
'THEFUCK_REQUIRE_CONFIRMATION': 'require_confirmation',
'THEFUCK_NO_COLORS': 'no_colors'}
def _settings_from_file(user_dir):
"""Loads settings from file."""
settings = load_source('settings',
text_type(user_dir.joinpath('settings.py')))
return {key: getattr(settings, key)
for key in DEFAULT_SETTINGS.keys()
if hasattr(settings, key)}
def _rules_from_env(val):
"""Transforms rules list from env-string to python."""
val = val.split(':')
if 'DEFAULT_RULES' in val:
val = DEFAULT_RULES + [rule for rule in val if rule != 'DEFAULT_RULES']
return val
def _val_from_env(env, attr):
"""Transforms env-strings to python."""
val = os.environ[env]
if attr == 'rules':
val = _rules_from_env(val)
elif attr == 'wait_command':
val = int(val)
elif attr in ('require_confirmation', 'no_colors'):
val = val.lower() == 'true'
return val
def _settings_from_env():
"""Loads settings from env."""
return {attr: _val_from_env(env, attr)
for env, attr in ENV_TO_ATTR.items()
if env in os.environ}
def get_settings(user_dir):
"""Returns settings filled with values from `settings.py` and env."""
conf = copy(DEFAULT_SETTINGS)
try:
conf.update(_settings_from_file(user_dir))
except Exception:
logs.exception("Can't load settings from file",
sys.exc_info(),
types.Settings(conf))
try:
conf.update(_settings_from_env())
except Exception:
logs.exception("Can't load settings from env",
sys.exc_info(),
types.Settings(conf))
if not isinstance(conf['rules'], types.RulesNamesList):
conf['rules'] = types.RulesNamesList(conf['rules'])
return types.Settings(conf)