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thefuck/thefuck/conf.py
2015-07-21 13:39:34 +00:00

136 lines
4.0 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_PRIORITY = 1000
DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
'wait_command': 3,
'require_confirmation': True,
'no_colors': False,
'debug': False,
'priority': {},
'env': {'LC_ALL': 'C', 'LANG': 'C', 'GIT_TRACE': '1'}}
ENV_TO_ATTR = {'THEFUCK_RULES': 'rules',
'THEFUCK_WAIT_COMMAND': 'wait_command',
'THEFUCK_REQUIRE_CONFIRMATION': 'require_confirmation',
'THEFUCK_NO_COLORS': 'no_colors',
'THEFUCK_PRIORITY': 'priority',
'THEFUCK_DEBUG': 'debug'}
SETTINGS_HEADER = u"""# ~/.thefuck/settings.py: The Fuck settings file
#
# The rules are defined as in the example bellow:
#
# rules = ['cd_parent', 'git_push', 'python_command', 'sudo']
#
# The default values are as follows. Uncomment and change to fit your needs.
# See https://github.com/nvbn/thefuck#settings for more information.
#
"""
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 _priority_from_env(val):
"""Gets priority pairs from env."""
for part in val.split(':'):
try:
rule, priority = part.split('=')
yield rule, int(priority)
except ValueError:
continue
def _val_from_env(env, attr):
"""Transforms env-strings to python."""
val = os.environ[env]
if attr == 'rules':
return _rules_from_env(val)
elif attr == 'priority':
return dict(_priority_from_env(val))
elif attr == 'wait_command':
return int(val)
elif attr in ('require_confirmation', 'no_colors', 'debug'):
return val.lower() == 'true'
else:
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)
def initialize_settings_file(user_dir):
settings_path = user_dir.joinpath('settings.py')
if not settings_path.is_file():
with settings_path.open(mode='w') as settings_file:
settings_file.write(SETTINGS_HEADER)
for setting in DEFAULT_SETTINGS.items():
settings_file.write(u'# {} = {}\n'.format(*setting))