194 lines
8.4 KiB
Python
194 lines
8.4 KiB
Python
# Copyright (C) 2018 Team tiramisu (see AUTHORS for all contributors)
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by the
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# Free Software Foundation, either version 3 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from typing import Union, List
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from argparse import ArgumentParser, Namespace, SUPPRESS
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from tiramisu import Option, OptionDescription, Config, BoolOption, StrOption, IntOption, \
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ChoiceOption, SymLinkOption
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from tiramisu.error import PropertiesOptionError
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class TiramisuNamespace(Namespace):
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def _populate(self):
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self._config.property.read_only()
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for tiramisu_key, tiramisu_value in self._config.value.dict().items():
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option = self._config.option(tiramisu_key)
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if not isinstance(option.option.get(), SymLinkOption):
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if tiramisu_value == [] and option.option.ismulti() and option.owner.isdefault():
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tiramisu_value = None
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super().__setattr__(tiramisu_key, tiramisu_value)
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self._config.property.read_write()
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def __init__(self, config):
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self._config = config
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super().__init__()
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def __setattr__(self, key, value):
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if key == '_config':
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super().__setattr__(key, value)
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return
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self._config.property.read_write()
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option = self._config.option(key)
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if option.option.ismulti() and value is not None and not isinstance(value, list):
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value = [value]
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option.value.set(value)
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def __getattribute__(self, key):
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if key == '__dict__' and hasattr(self, '_config'):
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self._populate()
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return super().__getattribute__(key)
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class TiramisuCmdlineParser(ArgumentParser):
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def __init__(self, *args, **kwargs):
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self.config = None
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super().__init__(*args, **kwargs)
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def _match_arguments_partial(self, actions, arg_string_pattern):
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# used only when check first proposal for first value
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# we have to remove all actions with propertieserror
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# so only first settable option will be returned
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actions_pop = []
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for idx, action in enumerate(actions):
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if self.config.unrestraint.option(action.dest).property.get(only_raises=True):
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actions_pop.append(idx)
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else:
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break
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for idx in actions_pop:
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actions.pop(0)
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return super()._match_arguments_partial(actions, arg_string_pattern)
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def add_argument(self, *args, **kwargs):
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if args == ('-h', '--help'):
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super().add_argument(*args, **kwargs)
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else:
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raise NotImplementedError('do not use add_argument')
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def add_subparsers(self, *args, **kwargs):
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raise NotImplementedError('do not use add_subparsers')
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def _config_to_argparser(self,
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_forhelp: bool):
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actions = {}
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for obj in self.config.unrestraint.option.list():
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if obj.option.properties(only_raises=True) or 'frozen' in obj.option.properties():
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continue
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option = obj.option
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tiramisu_option = option.get()
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name = option.name()
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if name.startswith(self.prefix_chars):
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raise ValueError('name cannot startswith "{}"'.format(self.prefix_chars))
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properties = obj.property.get()
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kwargs = {'help': option.doc(),
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'default': SUPPRESS}
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if 'positional' in properties:
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#if not 'mandatory' in properties:
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# raise ValueError('"positional" argument must be "mandatory" too')
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args = [name]
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if option.requires():
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kwargs['nargs'] = '?'
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else:
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if len(name) == 1 and 'longargument' not in properties:
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args = [self.prefix_chars + name]
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else:
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args = [self.prefix_chars * 2 + name]
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if _forhelp and 'mandatory' in properties:
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kwargs['required'] = True
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if isinstance(tiramisu_option, BoolOption):
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if 'mandatory' in properties:
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raise ValueError('"mandatory" property is not allowed for BoolOption')
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#if not isinstance(option.default(), bool):
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# raise ValueError('default value is mandatory for BoolOption')
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if option.default() is False:
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action = 'store_true'
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else:
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action = 'store_false'
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kwargs['action'] = action
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else:
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if option.default() not in [None, []]:
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#kwargs['default'] = kwargs['const'] = option.default()
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#kwargs['action'] = 'store_const'
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kwargs['nargs'] = '?'
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if option.ismulti():
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if _forhelp and 'mandatory' in properties:
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kwargs['nargs'] = '+'
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else:
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kwargs['nargs'] = '*'
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if isinstance(tiramisu_option, StrOption):
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pass
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elif isinstance(tiramisu_option, IntOption):
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kwargs['type'] = int
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elif isinstance(tiramisu_option, SymLinkOption):
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tiramisu_option = tiramisu_option.impl_getopt()
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actions[tiramisu_option.impl_getname()][0].insert(0, args[0])
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continue
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elif isinstance(tiramisu_option, ChoiceOption):
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kwargs['choices'] = obj.value.list()
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else:
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pass
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#raise NotImplementedError('not supported yet')
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actions[option.name()] = (args, kwargs)
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for args, kwargs in actions.values():
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super().add_argument(*args, **kwargs)
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def add_arguments(self,
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tiramisu: Union[Config, Option, List[Option], OptionDescription],
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_forhelp: bool=False) -> None:
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if not isinstance(tiramisu, Config):
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if not isinstance(tiramisu, OptionDescription):
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if isinstance(tiramisu, Option):
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tiramisu = [tiramisu]
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tiramisu = OptionDescription('root', 'root', tiramisu)
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tiramisu = Config(tiramisu)
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self.config = tiramisu
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self._config_to_argparser(_forhelp)
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def parse_args(self, *args, **kwargs):
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kwargs['namespace'] = TiramisuNamespace(self.config)
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namespaces = super().parse_args(*args, **kwargs)
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try:
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del namespaces.__dict__['_config']
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except PropertiesOptionError as err:
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if err.proptype == ['mandatory']:
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name = err._option_bag.option.impl_getname()
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properties = self.config.option(name).property.get()
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if 'positional' not in properties:
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if len(name) == 1 and 'longargument' not in properties:
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name = self.prefix_chars + name
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else:
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name = self.prefix_chars * 2 + name
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self.error('the following arguments are required: {}'.format(name))
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else:
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self.error('unexpected error: {}'.format(err))
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return namespaces
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def format_usage(self, *args, _forhelp=False, **kwargs):
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if _forhelp:
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return super().format_usage(*args, **kwargs)
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help_formatter = TiramisuCmdlineParser(self.prog)
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help_formatter.add_arguments(self.config, _forhelp=True)
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return help_formatter.format_usage(*args, **kwargs, _forhelp=True)
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def format_help(self, *args, _forhelp=False, **kwargs):
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if _forhelp:
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return super().format_help(*args, **kwargs)
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help_formatter = TiramisuCmdlineParser(self.prog)
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help_formatter.add_arguments(self.config, _forhelp=True)
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return help_formatter.format_help(*args, **kwargs, _forhelp=True)
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def get_config(self):
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return self.config
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