def _get_option_error(name, spec, config_options):
required = 'default' not in spec and 'env_fallback' not in spec
if required and name not in config_options:
return 'Option %s is missing' % name
else:
value = maybe_cast_list(config_options.get(name, empty), spec['type'])
if value is not empty and not isinstance(value, spec['type']):
return 'Wrong type: found {}, expected {}'.format(
type(value), spec['type'])
return None
def _get_option_error(name, spec, config_options):
required = 'default' not in spec and 'env_fallback' not in spec
if required and name not in config_options:
return 'Option %s is missing' % name
else:
value = maybe_cast_list(config_options.get(name, empty), spec['type'])
if value is not empty and not isinstance(value, spec['type']):
return 'Wrong type: found {}, expected {}'.format(
type(value), spec['type'])
return None
def check_options(self):
for option_name, option_spec in self.supported_options.iteritems():
option_value = maybe_cast_list(self.read_option(option_name), option_spec['type'])
if option_value and not isinstance(option_value, option_spec['type']):
raise ConfigurationError('Value for option %s should be of type: %s' %
(option_name, option_spec['type']))
if 'default' in option_spec:
continue
if 'env_fallback' in option_spec and option_value is None:
if not os.environ.get(option_spec['env_fallback']):
raise ConfigurationError(
'Missing value for option {}. (tried also: {} from env)'.format(
option_name, option_spec['env_fallback'])
)
elif option_value is None:
raise ConfigurationError('Missing value for option %s' % option_name)
def test_maybe_cast_list(self):
# Don't do anything if it isn't a list
assert maybe_cast_list(None, list) is None
assert maybe_cast_list(50, list) == 50
# Works when we expect normal lists
assert type(maybe_cast_list([], list)) == list
# Cast to more specific list subclasses whenever possible
assert type(maybe_cast_list([4, 5], (int_list))) == int_list
assert type(maybe_cast_list(['asd', 5], (str_list))) == str_list
# Return original value if can't cast
assert type(maybe_cast_list(['asd', 5], (int_list))) == list
# Try to cast to every list subclass
assert type(maybe_cast_list(['asd', 5], (int_list, str_list))) == str_list
def check_options(self):
for option_name, option_spec in self.supported_options.iteritems():
option_value = maybe_cast_list(self.read_option(option_name),
option_spec['type'])
if option_value and not isinstance(option_value,
option_spec['type']):
raise ConfigurationError(
'Value for option %s should be of type: %s' %
(option_name, option_spec['type']))
if 'default' in option_spec:
continue
if 'env_fallback' in option_spec and option_value is None:
if not os.environ.get(option_spec['env_fallback']):
raise ConfigurationError(
'Missing value for option {}. (tried also: {} from env)'
.format(option_name, option_spec['env_fallback']))
elif option_value is None:
raise ConfigurationError('Missing value for option %s' %
option_name)
def test_maybe_cast_list(self):
# Don't do anything if it isn't a list
assert maybe_cast_list(None, list) is None
assert maybe_cast_list(50, list) == 50
# Works when we expect normal lists
assert type(maybe_cast_list([], list)) == list
# Cast to more specific list subclasses whenever possible
assert type(maybe_cast_list([4, 5], (int_list))) == int_list
assert type(maybe_cast_list(['asd', 5], (str_list))) == str_list
# Return original value if can't cast
assert type(maybe_cast_list(['asd', 5], (int_list))) == list
# Try to cast to every list subclass
assert type(maybe_cast_list(['asd', 5],
(int_list, str_list))) == str_list
