def _KwargsForAttribute(self, name, attribute, required=False):
"""Constructs the kwargs for adding an attribute to argparse."""
# If this is the only argument in the group, the help text should be the
# "group" help.
if len(filter(bool, self.attribute_to_args_map.values())) == 1:
help_text = self.group_help
else:
# Expand the help text.
help_text = attribute.help_text.format(
resource=self.concept_spec.name)
plural = attribute == self.concept_spec.anchor and self.plural
kwargs_dict = {
'help': help_text,
'type': attribute.value_type,
'completer': attribute.completer
}
if util.IsPositional(name):
if plural and required:
kwargs_dict.update({'nargs': '+'})
# The following should not usually happen because anchor args are
# required.
elif plural and not required:
kwargs_dict.update({'nargs': '*'})
elif not required:
kwargs_dict.update({'nargs': '?'})
else:
kwargs_dict.update({'metavar': util.MetavarFormat(name)})
if required:
kwargs_dict.update({'required': True})
if plural:
kwargs_dict.update({'type': arg_parsers.ArgList()})
return kwargs_dict
def _KwargsForAttribute(self, name, attribute, is_anchor=False):
"""Constructs the kwargs for adding an attribute to argparse."""
# Argument is modal if it's the anchor, unless there are fallthroughs.
# If fallthroughs can ever be configured in the ResourceInfo object,
# a more robust solution will be needed, e.g. a GetFallthroughsForAttribute
# method.
required = is_anchor and not attribute.fallthroughs
# If this is the only argument in the group, the help text should be the
# "group" help.
if len(list(filter(bool, self.attribute_to_args_map.values()))) == 1:
help_text = self.group_help
else:
# Expand the help text.
help_text = attribute.help_text.format(
resource=self.resource_spec.name)
plural = attribute == self.resource_spec.anchor and self.plural
if attribute.completer:
completer = attribute.completer
elif not self.resource_spec.disable_auto_completers:
completer = completers.CompleterForAttribute(
self.resource_spec, attribute.name)
else:
completer = None
kwargs_dict = {
'help': help_text,
'type': attribute.value_type,
'completer': completer
}
if util.IsPositional(name):
if plural and required:
kwargs_dict.update({'nargs': '+'})
# The following should not usually happen because anchor args are
# required.
elif plural and not required:
kwargs_dict.update({'nargs': '*'})
elif not required:
kwargs_dict.update({'nargs': '?'})
else:
kwargs_dict.update({'metavar': util.MetavarFormat(name)})
if required:
kwargs_dict.update({'required': True})
if plural:
kwargs_dict.update({'type': arg_parsers.ArgList()})
return kwargs_dict
def _KwargsForAttribute(self, name, attribute, is_anchor=False):
"""Constructs the kwargs for adding an attribute to argparse."""
# Argument is modal if it's the anchor, unless there are fallthroughs.
# If fallthroughs can ever be configured in the ResourceInfo object,
# a more robust solution will be needed, e.g. a GetFallthroughsForAttribute
# method.
required = is_anchor and not self.fallthroughs_map.get(
attribute.name, [])
final_help_text = self._GetHelpTextForAttribute(attribute,
is_anchor=is_anchor)
plural = attribute == self.resource_spec.anchor and self.plural
if attribute.completer:
completer = attribute.completer
elif not self.resource_spec.disable_auto_completers:
completer = completers.CompleterForAttribute(
self.resource_spec, attribute.name)
else:
completer = None
kwargs_dict = {
'help': final_help_text,
'type': attribute.value_type,
'completer': completer
}
if util.IsPositional(name):
if plural and required:
kwargs_dict.update({'nargs': '+'})
# The following should not usually happen because anchor args are
# required.
elif plural and not required:
kwargs_dict.update({'nargs': '*'})
elif not required:
kwargs_dict.update({'nargs': '?'})
else:
kwargs_dict.update({'metavar': util.MetavarFormat(name)})
if required:
kwargs_dict.update({'required': True})
if plural:
kwargs_dict.update({'type': arg_parsers.ArgList()})
return kwargs_dict
def _KwargsForAttribute(self, name, attribute, required=False):
"""Constructs the kwargs for adding an attribute to argparse."""
# If this is the only argument in the group, the help text should be the
# "group" help.
if len(filter(bool, self.attribute_to_args_map.values())) == 1:
help_text = self.group_help
else:
# Expand the help text.
help_text = attribute.help_text.format(
resource=self.concept_spec.name)
kwargs_dict = {
'help': help_text,
'type': attribute.value_type,
'completer': attribute.completer
}
if util.IsPositional(name):
if required:
kwargs_dict.update({'nargs': 1})
else:
kwargs_dict.update({'metavar': util.MetavarFormat(name)})
if required:
kwargs_dict.update({'required': True})
return kwargs_dict