228 lines
9.6 KiB
Python
228 lines
9.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
"master slaves support"
|
|
# Copyright (C) 2014-2018 Team tiramisu (see AUTHORS for all contributors)
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU Lesser General Public License as published by the
|
|
# Free Software Foundation, either version 3 of the License, or (at your
|
|
# option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
|
|
# details.
|
|
#
|
|
# 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/>.
|
|
#
|
|
# The original `Config` design model is unproudly borrowed from
|
|
# the rough pypy's guys: http://codespeak.net/svn/pypy/dist/pypy/config/
|
|
# the whole pypy projet is under MIT licence
|
|
# ____________________________________________________________
|
|
import weakref
|
|
from itertools import chain
|
|
|
|
|
|
from ..i18n import _
|
|
from ..setting import groups, undefined, OptionBag
|
|
from .optiondescription import OptionDescription
|
|
from .option import Option
|
|
from ..error import SlaveError, PropertiesOptionError, RequirementError
|
|
from ..function import ParamOption
|
|
|
|
|
|
class MasterSlaves(OptionDescription):
|
|
__slots__ = ('master', 'slaves')
|
|
|
|
def __init__(self,
|
|
name,
|
|
doc,
|
|
children,
|
|
requires=None,
|
|
properties=None):
|
|
|
|
super(MasterSlaves, self).__init__(name,
|
|
doc,
|
|
children,
|
|
requires=requires,
|
|
properties=properties)
|
|
self._group_type = groups.master
|
|
slaves = []
|
|
if len(children) < 2:
|
|
raise ValueError(_('a master and a slave are mandatories in masterslaves "{}"').format(name))
|
|
master = children[0]
|
|
for idx, child in enumerate(children):
|
|
if child.impl_is_symlinkoption():
|
|
raise ValueError(_('masterslaves "{0}" shall not have '
|
|
"a symlinkoption").format(self.impl_get_display_name()))
|
|
if not isinstance(child, Option):
|
|
raise ValueError(_('masterslaves "{0}" shall not have '
|
|
'a subgroup').format(self.impl_get_display_name()))
|
|
if not child.impl_is_multi():
|
|
raise ValueError(_('only multi option allowed in masterslaves "{0}" but option '
|
|
'"{1}" is not a multi').format(self.impl_get_display_name(),
|
|
child.impl_get_display_name()))
|
|
if idx != 0 and child.impl_getdefault() != []:
|
|
raise ValueError(_('not allowed default value for option "{0}" '
|
|
'in masterslaves "{1}"'
|
|
'').format(child.impl_get_display_name(),
|
|
self.impl_get_display_name()))
|
|
# no empty property for save
|
|
if idx != 0:
|
|
child_properties = list(child._properties)
|
|
child_properties.remove('empty')
|
|
child._properties = frozenset(child_properties)
|
|
slaves.append(child)
|
|
child._add_dependency(self)
|
|
child._master_slaves = weakref.ref(self)
|
|
callback, callback_params = master.impl_get_callback()
|
|
if callback is not None and callback_params != None:
|
|
for callbk in chain(callback_params.args, callback_params.kwargs.values()):
|
|
if isinstance(callbk, ParamOption):
|
|
if callbk.option in slaves:
|
|
raise ValueError(_("callback of master's option shall "
|
|
"not refered a slave's ones"))
|
|
# master should not have requires, only MasterSlaves should have
|
|
# so move requires to MasterSlaves
|
|
# if MasterSlaves has requires to, cannot manage the move so raises
|
|
master_requires = getattr(master, '_requires', None)
|
|
if master_requires:
|
|
if self.impl_getrequires():
|
|
raise RequirementError(_('master {} have requirement, but MasterSlaves {} too'
|
|
'').format(master.impl_getname(),
|
|
self.impl_getname()))
|
|
master_calproperties = getattr(master, '_calc_properties', None)
|
|
if master_calproperties:
|
|
if properties is not None:
|
|
self.validate_properties(name, master_calproperties, frozenset(properties))
|
|
setattr(self, '_calc_properties', master_calproperties)
|
|
setattr(self, '_requires', master_requires)
|
|
delattr(master, '_requires')
|
|
all_requires = getattr(self, '_requires', None)
|
|
if all_requires:
|
|
for requires_ in all_requires:
|
|
for require in requires_:
|
|
for require_opt, values in require[0]:
|
|
if require_opt.impl_is_multi():
|
|
if require_opt.impl_is_master_slaves():
|
|
raise ValueError(_('malformed requirements option "{0}" '
|
|
'must not be in slave for "{1}"').format(
|
|
require_opt.impl_getname(), self.impl_getname()))
|
|
|
|
def is_master(self, opt):
|
|
master = self._children[0][0]
|
|
return opt.impl_getname() == master or (opt.impl_is_dynsymlinkoption() and
|
|
opt._opt.impl_getname() == master)
|
|
|
|
def getmaster(self):
|
|
return self._children[1][0]
|
|
|
|
def getslaves(self):
|
|
for slave in self._children[1][1:]:
|
|
yield slave
|
|
|
|
def in_same_group(self, opt):
|
|
if opt.impl_is_dynsymlinkoption():
|
|
c_opt = opt._opt
|
|
else:
|
|
c_opt = opt
|
|
return c_opt in self._children[1]
|
|
|
|
def reset(self,
|
|
values,
|
|
option_bag,
|
|
_commit=True):
|
|
|
|
config_bag = option_bag.config_bag.copy()
|
|
config_bag.remove_validation()
|
|
for slave in self.getslaves():
|
|
slave_path = slave.impl_getpath()
|
|
soption_bag = OptionBag()
|
|
soption_bag.set_option(slave,
|
|
slave_path,
|
|
None,
|
|
config_bag)
|
|
values.reset(soption_bag,
|
|
_commit=_commit)
|
|
|
|
def pop(self,
|
|
values,
|
|
index,
|
|
option_bag,
|
|
slaves=undefined):
|
|
|
|
if slaves is undefined:
|
|
slaves = self.getslaves()
|
|
config_bag = option_bag.config_bag.copy()
|
|
config_bag.remove_validation()
|
|
for slave in slaves:
|
|
slave_path = slave.impl_getpath()
|
|
slavelen = values._p_.get_max_length(slave_path)
|
|
soption_bag = OptionBag()
|
|
soption_bag.set_option(slave,
|
|
slave_path,
|
|
index,
|
|
config_bag)
|
|
# do not check force_default_on_freeze
|
|
soption_bag.properties = set()
|
|
if not values.is_default_owner(soption_bag,
|
|
validate_meta=False):
|
|
if slavelen > index:
|
|
values._p_.resetvalue_index(slave_path,
|
|
index,
|
|
True)
|
|
if slavelen > index + 1:
|
|
for idx in range(index + 1, slavelen):
|
|
if values._p_.hasvalue(slave_path, idx):
|
|
values._p_.reduce_index(slave_path,
|
|
idx)
|
|
|
|
def reset_cache(self,
|
|
path,
|
|
values,
|
|
settings,
|
|
resetted_opts):
|
|
master = self.getmaster()
|
|
slaves = self.getslaves()
|
|
self._reset_cache(path,
|
|
master,
|
|
slaves,
|
|
values,
|
|
settings,
|
|
resetted_opts)
|
|
|
|
def _reset_cache(self,
|
|
path,
|
|
master,
|
|
slaves,
|
|
values,
|
|
settings,
|
|
resetted_opts):
|
|
super().reset_cache(path,
|
|
values,
|
|
settings,
|
|
resetted_opts)
|
|
mpath = master.impl_getpath()
|
|
master.reset_cache(mpath,
|
|
values,
|
|
settings,
|
|
None)
|
|
for slave in slaves:
|
|
spath = slave.impl_getpath()
|
|
slave.reset_cache(spath,
|
|
values,
|
|
settings,
|
|
None)
|
|
resetted_opts.append(spath)
|
|
|
|
def impl_validate_value(self,
|
|
option,
|
|
value,
|
|
context):
|
|
if isinstance(value, list) and len(value) < context._impl_length:
|
|
raise SlaveError(_('cannot reduce length of the master "{}"'
|
|
'').format(option.impl_get_display_name()))
|
|
|
|
def impl_is_master_slaves(self, *args, **kwargs):
|
|
return True
|