def apply_config(raw, validators):
raw = _normalize(raw, validators)
# find invalid options
invalid = deepcopy(raw)
for k, config in validators.items():
options = [opt for opt in config.options() if opt.alias is None]
for option in options:
if dict_has_path(invalid, option.name):
dict_del_path(invalid, option.name)
if k in invalid or (not k and invalid):
first = dict_paths(invalid, k)[0]
candidates = [opt.name for opt in options]
suggestion = did_you_mean(candidates, first)
raise _invalid_option(first, help_topic=config.name, suggestion=suggestion, kind='key')
# validate and cast options
for option in options:
if dict_has_path(raw, option.name):
value = dict_get_path(raw, option.name)
dict_del_path(raw, option.name)
config.configure(option, value)
return raw
def configure(self, option, value):
try:
value = option.cast_value(value)
value = option.transform_value(value)
option.validate_value(value)
if isinstance(value, dict):
if dict_has_path(self._values, option.name):
dict_merge(dict_get_path(self._values, option.name), value)
else:
dict_set_path(self._values, option.name, value)
except VergeMLError as err:
# set help topic
err.help_topic = self.name
raise err
def _normalize(raw, validators):
raw = deepcopy(raw)
res = {}
for _, conf in validators.items():
options = Option.discover(conf)
aliases = [opt for opt in options if opt.alias]
for alias in aliases:
if dict_has_path(raw, alias.name):
v = dict_get_path(raw, alias.name)
if not alias.type or isinstance(v, alias.type):
dict_set_path(res, alias.alias, v)
dict_del_path(raw, alias.name)
for k, v in deepcopy(raw).items():
if "." in k:
dict_set_path(res, k, v)
del raw[k]
return dict_merge(res, raw)
def get(self, path):
"""Get a value by its path.
For example, to access the variable 'id' in the dict 'device', use device.id as path.
"""
return dict_get_path(self._config, path, None)
def test_get_path_top():
dic = {'x': {'y': {'z': 1}}}
assert dict_get_path(dic, 'x') == {'y': {'z': 1}}
def test_get_path():
dic = {'x': {'y': {'z': 1}}}
assert dict_get_path(dic, 'x.y.z') == 1