leader/follower support

This commit is contained in:
2019-04-17 19:16:43 +02:00
parent 0f38946670
commit 111d0717b1
4 changed files with 708 additions and 194 deletions

View File

@ -12,7 +12,7 @@
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from typing import Union, List, Optional
from typing import Union, List, Dict, Tuple, Optional, Any
from argparse import ArgumentParser, Namespace, SUPPRESS, _HelpAction, HelpFormatter
from copy import copy
from gettext import gettext as _
@ -20,10 +20,11 @@ from gettext import gettext as _
try:
from tiramisu import Config
from tiramisu.error import PropertiesOptionError
from tiramisu.error import PropertiesOptionError, RequirementError
except ModuleNotFoundError:
Config = None
from tiramisu_json_api.error import PropertiesOptionError
RequirementError = PropertiesOptionError
try:
from tiramisu_json_api import Config as ConfigJson
if Config is None:
@ -33,34 +34,71 @@ except ModuleNotFoundError:
class TiramisuNamespace(Namespace):
def _populate(self):
#self._config.property.read_only()
def __init__(self,
config: Config) -> None:
super().__setattr__('_config', config)
super().__setattr__('list_force_no', {})
self._populate()
super().__init__()
def _populate(self) -> None:
for tiramisu_key, tiramisu_value in self._config.value.dict().items():
option = self._config.option(tiramisu_key)
if not option.option.issymlinkoption():
if tiramisu_value == [] and option.option.ismulti() and option.owner.isdefault():
if tiramisu_value == [] and \
option.option.ismulti() and \
option.owner.isdefault():
tiramisu_value = None
super().__setattr__(tiramisu_key, tiramisu_value)
#self._config.property.read_write()
def __init__(self, config):
self._config = config
super().__init__()
def __setattr__(self,
key: str,
value: Any) -> None:
if key in self.list_force_no:
true_key = self.list_force_no[key]
else:
true_key = key
option = self._config.option(true_key)
if option.option.isfollower():
_setattr = self._setattr_follower
true_value = ','.join(value[1:])
else:
_setattr = self._setattr
true_value = value
try:
_setattr(option, true_key, key, value)
except ValueError as err:
if option.option.type() == 'choice':
raise ValueError("invalid choice: '{}' (choose from {})".format(true_value, ', '.join([f"'{val}'" for val in option.value.list()])))
else:
raise err
def __setattr__(self, key, value):
if key == '_config':
super().__setattr__(key, value)
return
# self._config.property.read_write()
option = self._config.option(key)
if option.option.ismulti() and value is not None and not isinstance(value, list):
def _setattr(self,
option: 'Option',
true_key: str,
key: str,
value: Any) -> None:
if option.option.ismulti() and \
value is not None and \
not isinstance(value, list):
value = [value]
option.value.set(value)
def __getattribute__(self, key):
if key == '__dict__' and hasattr(self, '_config'):
self._populate()
return super().__getattribute__(key)
def _setattr_follower(self,
option: 'Option',
true_key: str,
key: str,
value: Any) -> None:
if not value[0].isdecimal():
raise ValueError('index must be a number, not {}'.format(value[0]))
index = int(value[0])
if option.option.type() == 'boolean':
value = key not in self.list_force_no
elif option.option.issubmulti():
value = value[1:]
else:
value = value[1]
self._config.option(true_key, index).value.set(value)
class TiramisuHelpFormatter(HelpFormatter):
@ -81,6 +119,62 @@ class _TiramisuHelpAction(_HelpAction):
_HelpAction.__call__(self, parser, None, None)
class _BuildKwargs:
def __init__(self,
name: str,
option: 'Option',
cmdlineparser: 'TiramisuCmdlineParser',
properties: List[str],
force_no: bool) -> None:
self.kwargs = {}
self.cmdlineparser = cmdlineparser
self.properties = properties
self.force_no = force_no
if not self.force_no:
self.kwargs['help'] = option.doc().replace('%', '%%')
if 'positional' not in self.properties:
is_short_name = self.cmdlineparser._is_short_name(name, 'longargument' in self.properties)
if self.force_no:
ga_name = self.gen_argument_name(name, is_short_name)
self.cmdlineparser.namespace.list_force_no[ga_name] = option.path()
else:
ga_name = name
self.kwargs['dest'] = self.gen_argument_name(option.path(), False)
self.args = [self.cmdlineparser._gen_argument(ga_name, is_short_name)]
else:
self.args = [option.path()]
def __setitem__(self,
key: str,
value: Any) -> None:
self.kwargs[key] = value
def add_argument(self,
option: 'Option'):
is_short_name = self.cmdlineparser._is_short_name(option.name(), 'longargument' in self.properties)
if self.force_no:
name = self.gen_argument_name(option.name(), is_short_name)
else:
name = option.name()
self.args.insert(0, self.cmdlineparser._gen_argument(name, is_short_name))
def gen_argument_name(self, name, is_short_name):
if self.force_no:
if is_short_name:
prefix = 'n'
else:
prefix = 'no-'
if '.' in name:
sname = name.rsplit('.', 1)
name = sname[0] + '.' + prefix + sname[1]
else:
name = prefix + name
return name
def get(self) -> Tuple[Dict]:
return self.args, self.kwargs
class TiramisuCmdlineParser(ArgumentParser):
def __init__(self,
config: Union[Config, ConfigJson],
@ -91,6 +185,7 @@ class TiramisuCmdlineParser(ArgumentParser):
self.fullpath = fullpath
self.config = config
kwargs['formatter_class'] = TiramisuHelpFormatter
self.namespace = TiramisuNamespace(self.config)
super().__init__(*args, **kwargs)
self.register('action', 'help', _TiramisuHelpAction)
self._config_to_argparser(_forhelp,
@ -118,9 +213,19 @@ class TiramisuCmdlineParser(ArgumentParser):
actions.pop(0)
return super()._match_arguments_partial(actions, arg_string_pattern)
def _parse_known_args(self, args=None, namespace=None):
def _is_short_name(self, name, longargument):
return len(name) == 1 and not longargument
namespace_, args_ = super()._parse_known_args(args, namespace)
def _gen_argument(self, name, is_short_name):
if is_short_name:
return self.prefix_chars + name
return self.prefix_chars * 2 + name
def _parse_known_args(self, args=None, namespace=None):
try:
namespace_, args_ = super()._parse_known_args(args, namespace)
except ValueError as err:
self.error(err)
if args != args_ and args_ and args_[0].startswith(self.prefix_chars):
# option that was disabled are no more disable
# so create a new parser
@ -148,21 +253,39 @@ class TiramisuCmdlineParser(ArgumentParser):
def add_subparsers(self, *args, **kwargs):
raise NotImplementedError(_('do not use add_subparsers'))
def _gen_argument(self, name, longargument, no_prefix=False):
shortarg = len(name) == 1 and not longargument
if no_prefix:
if shortarg:
prefix = 'n'
def _option_is_not_default(self,
properties,
type,
name,
value):
if 'positional' not in properties:
is_short_name = self._is_short_name(name, 'longargument' in properties)
self.prog += ' {}'.format(self._gen_argument(name, is_short_name))
if type != 'boolean':
self.prog += f' {value}'
def _config_list(self,
config: Config,
prefix: Optional[str],
_forhelp: bool,
group):
for obj in config.list(type='all'):
# do not display frozen option
if 'frozen' in obj.option.properties():
continue
if obj.option.isoptiondescription():
if _forhelp:
group = self.add_argument_group(obj.option.doc())
if prefix:
prefix_ = prefix + '.' + obj.option.name()
else:
prefix_ = obj.option.path()
self._config_to_argparser(_forhelp, obj, prefix_, group)
elif obj.option.type() == 'boolean' and not obj.option.issymlinkoption():
yield obj, False
yield obj, True
else:
prefix = 'no-'
if '.' in name:
sname = name.rsplit('.', 1)
name = sname[0] + '.' + prefix + sname[1]
else:
name = prefix + name
if shortarg:
return self.prefix_chars + name
return self.prefix_chars * 2 + name
yield obj, None
def _config_to_argparser(self,
_forhelp: bool,
@ -172,107 +295,128 @@ class TiramisuCmdlineParser(ArgumentParser):
if group is None:
group = super()
actions = {}
for obj in config.list(type='all'):
leadership_len = None
for obj, force_no in self._config_list(config, prefix, _forhelp, group):
option = obj.option
if option.isoptiondescription():
if _forhelp:
group = self.add_argument_group(option.doc())
if prefix:
prefix_ = prefix + '.' + option.name()
else:
prefix_ = option.path()
self._config_to_argparser(_forhelp, obj, prefix_, group)
continue
if 'frozen' in option.properties():
continue
if option.isleader():
value = obj.value.get()
leadership_len = len(value)
elif option.isfollower():
value = []
for index in range(leadership_len):
value.append(self.config.option(obj.option.path(), index).value.get())
else:
value = obj.value.get()
name = option.name()
if name.startswith(self.prefix_chars):
raise ValueError(_('name cannot startswith "{}"').format(self.prefix_chars))
if self.fullpath and prefix:
name = prefix + '.' + name
properties = obj.property.get()
kwargs = {'help': option.doc().replace('%', '%%')}
if option.isfollower():
properties = obj.option.properties()
else:
properties = obj.property.get()
if option.issymlinkoption():
symlink_name = option.name(follow_symlink=True)
if symlink_name in actions:
actions[symlink_name][0][0].insert(0, self._gen_argument(option.name(), 'longargument' in properties))
if len(actions[symlink_name]) == 2:
actions[symlink_name][1][0].insert(0, self._gen_argument(option.name(), False, True))
for action in actions[symlink_name]:
action.add_argument(option)
continue
if _forhelp and not obj.owner.isdefault() and obj.value.get() is not None:
if 'positional' not in properties:
self.prog += ' {}'.format(self._gen_argument(name, 'longargument' in properties))
if option.type() != 'boolean':
self.prog += ' {}'.format(obj.value.get())
kwargs = _BuildKwargs(name, option, self, properties, force_no)
if not option.isfollower() and _forhelp and not obj.owner.isdefault() and value is not None:
if not force_no:
self._option_is_not_default(properties,
option.type(),
name,
value)
else:
if 'positional' in properties:
if option.type() == 'boolean':
raise ValueError(_('boolean option must not be positional'))
# if not 'mandatory' in properties:
# raise ValueError('"positional" argument must be "mandatory" too')
args = [option.path()]
if not 'mandatory' in properties:
raise ValueError('"positional" argument must be "mandatory" too')
if _forhelp:
kwargs['default'] = obj.value.default()
else:
kwargs['default'] = obj.value.get()
kwargs['default'] = value
kwargs['nargs'] = '?'
else:
kwargs['dest'] = option.path()
kwargs['default'] = SUPPRESS
if _forhelp and 'mandatory' in properties:
kwargs['required'] = True
if option.type() == 'boolean':
if option.type() == 'boolean' and not option.isfollower():
if 'storefalse' in properties:
if force_no:
action = 'store_true'
else:
action = 'store_false'
elif force_no:
action = 'store_false'
no_action = 'store_true'
else:
action = 'store_true'
no_action = 'store_false'
kwargs['action'] = action
args = [self._gen_argument(name, 'longargument' in properties)]
#
nkwargs = copy(kwargs)
nkwargs['action'] = no_action
del nkwargs['help']
nargs = [self._gen_argument(name, 'longargument' in properties, True)]
actions[option.name()] = [(args, kwargs), (nargs, nkwargs)]
continue
args = [self._gen_argument(name, 'longargument' in properties)]
if _forhelp:
value = obj.value.default()
else:
value = obj.value.get()
if value not in [None, []]:
#kwargs['default'] = kwargs['const'] = option.default()
#kwargs['action'] = 'store_const'
kwargs['nargs'] = '?'
if option.ismulti():
if _forhelp and 'mandatory' in properties:
kwargs['nargs'] = '+'
else:
kwargs['nargs'] = '*'
if option.type() == 'string':
pass
elif option.type() == 'integer':
kwargs['type'] = int
elif option.type() == 'choice':
kwargs['choices'] = obj.value.list()
else:
pass
#raise NotImplementedError('not supported yet')
actions[option.name()] = [(args, kwargs)]
if option.type() == 'boolean':
kwargs['metavar'] = 'INDEX'
if option.type() != 'boolean':
if _forhelp:
value = obj.value.default()
if value not in [None, []]:
#kwargs['default'] = kwargs['const'] = option.default()
#kwargs['action'] = 'store_const'
kwargs['nargs'] = '?'
if not option.isfollower() and option.ismulti():
if _forhelp and 'mandatory' in properties:
kwargs['nargs'] = '+'
else:
kwargs['nargs'] = '*'
if option.isfollower() and not option.type() == 'boolean':
metavar = option.name().upper()
if option.issubmulti():
kwargs['nargs'] = '+'
else:
kwargs['nargs'] = 2
if _forhelp and 'mandatory' not in properties:
metavar = f'[{metavar}]'
if option.type() == 'choice':
choice_list = obj.value.list()
if choice_list[0] == '':
del choice_list[0]
choices = '{{{}}}'.format(','.join(choice_list))
if 'mandatory' not in properties:
choices = f'[{choices}]'
kwargs['metavar'] = ('INDEX', choices)
else:
kwargs['metavar'] = ('INDEX', metavar)
if option.type() == 'string':
pass
elif option.type() == 'integer' or option.type() == 'boolean':
# when boolean we are here only if follower
kwargs['type'] = int
if _forhelp and option.type() == 'boolean':
kwargs['metavar'] = 'INDEX'
kwargs['nargs'] = 1
elif option.type() == 'choice' and not option.isfollower():
kwargs['choices'] = obj.value.list()
else:
pass
#raise NotImplementedError('not supported yet')
actions.setdefault(option.name(), []).append(kwargs)
for values in actions.values():
for args, kwargs in values:
for value in values:
args, kwargs = value.get()
group.add_argument(*args, **kwargs)
def _valid_mandatory(self):
pass
def parse_args(self,
*args,
valid_mandatory=True,
**kwargs):
kwargs['namespace'] = TiramisuNamespace(self.config)
kwargs['namespace'] = self.namespace
try:
namespaces = super().parse_args(*args, **kwargs)
del namespaces.__dict__['_config']
except PropertiesOptionError as err:
name = err._option_bag.option.impl_getname()
properties = self.config.option(name).property.get()
@ -286,19 +430,31 @@ class TiramisuCmdlineParser(ArgumentParser):
else:
self.error('unrecognized arguments: {}'.format(name))
if valid_mandatory:
errors = []
for key in self.config.value.mandatory():
properties = self.config.option(key).property.get()
if 'positional' not in properties:
if self.fullpath or '.' not in key:
name = key
properties = self.config.option(key).option.properties()
if not self.config.option(key).option.isfollower():
if 'positional' not in properties:
if self.fullpath or '.' not in key:
name = key
else:
name = key.rsplit('.', 1)[1]
is_short_name = self._is_short_name(name, 'longargument' in self.config.option(key).property.get())
args = self._gen_argument(name, is_short_name)
else:
name = key.rsplit('.', 1)[1]
args = self._gen_argument(name, 'longargument' in self.config.option(key).property.get())
args = key
else:
args = key
if 'positional' not in properties:
args = self._gen_argument(key, False)
else:
args = key
if not self.fullpath and '.' in args:
args = args.rsplit('.', 1)[1]
self.error('the following arguments are required: {}'.format(args))
if 'positional' not in properties:
args = self._gen_argument(args, False)
errors.append(args)
if errors:
self.error('the following arguments are required: {}'.format(', '.join(errors)))
return namespaces
def format_usage(self,