add force_metaconfig_on_freeze special properties

test/test_metaconfig.py

@@ -972,3 +972,64 @@ def test_meta_properties_meta_set_value():
     assert isinstance(ret[0], ValueError)
     del ret[0]
     del ret
+
+
+def test_metaconfig_force_metaconfig_on_freeze():
+    dummy1 = StrOption('dummy1', 'doc dummy', default='default')
+    dummy2 = StrOption('dummy2', 'doc dummy', default='default', properties=('force_default_on_freeze',))
+    group = OptionDescription('group', '', [dummy1, dummy2])
+    config = Config(group)
+    meta1 = MetaConfig([config], session_id='meta1')
+    meta1.owner.set(owners.meta1)
+    meta2 = MetaConfig([meta1], session_id='meta2')
+    meta2.owner.set(owners.meta2)
+    config.property.read_write()
+
+    config.option('dummy1').property.add('frozen')
+    config.option('dummy1').property.add('force_metaconfig_on_freeze')
+    config.option('dummy2').property.add('frozen')
+    #
+    assert config.option('dummy1').value.get() == 'default'
+    assert config.option('dummy1').owner.get() == 'default'
+    assert config.option('dummy2').value.get() == 'default'
+    assert config.option('dummy2').owner.get() == 'default'
+    #
+    meta2.option('dummy1').value.set('meta2')
+    meta2.option('dummy2').value.set('meta2')
+    #
+    assert config.option('dummy1').value.get() == 'meta2'
+    assert config.option('dummy1').owner.get() == 'meta2'
+    assert config.option('dummy2').value.get() == 'default'
+    assert config.option('dummy2').owner.get() == 'default'
+    #
+    config.option('dummy1').property.pop('frozen')
+    config.option('dummy2').property.pop('frozen')
+    config.option('dummy1').value.set('config')
+    config.option('dummy2').value.set('config')
+    config.option('dummy1').property.add('frozen')
+    config.option('dummy2').property.add('frozen')
+    #
+    assert config.option('dummy1').value.get() == 'meta2'
+    assert config.option('dummy1').owner.get() == 'meta2'
+    assert config.option('dummy2').value.get() == 'default'
+    assert config.option('dummy2').owner.get() == 'default'
+    #
+    meta1.option('dummy1').value.set('meta1')
+    meta1.option('dummy2').value.set('meta1')
+    #
+    assert config.option('dummy1').value.get() == 'meta1'
+    assert config.option('dummy1').owner.get() == 'meta1'
+    assert config.option('dummy2').value.get() == 'default'
+    assert config.option('dummy2').owner.get() == 'default'
+    #
+    meta1.option('dummy1').property.add('force_metaconfig_on_freeze')
+    assert config.option('dummy1').value.get() == 'meta2'
+    assert config.option('dummy1').owner.get() == 'meta2'
+    #
+    meta2.option('dummy1').property.add('force_metaconfig_on_freeze')
+    assert config.option('dummy1').value.get() == 'default'
+    assert config.option('dummy1').owner.get() == 'default'
+    #
+    meta1.option('dummy1').property.pop('force_metaconfig_on_freeze')
+    assert config.option('dummy1').value.get() == 'meta1'
+    assert config.option('dummy1').owner.get() == 'meta1'

test/test_option_default.py

@@ -120,6 +120,14 @@ def test_force_default_on_freeze_leader():
     raises(ConfigError, "Config(descr)")
 
 
+def test_force_metaconfig_on_freeze_leader():
+    dummy1 = BoolOption('dummy1', 'Test int option', multi=True, properties=('force_metaconfig_on_freeze',))
+    dummy2 = BoolOption('dummy2', 'Test string option', multi=True)
+    descr = Leadership("dummy1", "", [dummy1, dummy2])
+    descr = OptionDescription("root", "", [descr])
+    raises(ConfigError, "Config(descr)")
+
+
 def test_force_default_on_freeze_leader_frozen():
     dummy1 = BoolOption('dummy1', 'Test int option', multi=True, properties=('force_default_on_freeze', 'frozen'))
     dummy2 = BoolOption('dummy2', 'Test string option', multi=True)
@@ -129,6 +137,15 @@ def test_force_default_on_freeze_leader_frozen():
     raises(ConfigError, "api.option('dummy1.dummy1').property.pop('frozen')")
 
 
+def test_force_metaconfig_on_freeze_leader_frozen():
+    dummy1 = BoolOption('dummy1', 'Test int option', multi=True, properties=('force_metaconfig_on_freeze', 'frozen'))
+    dummy2 = BoolOption('dummy2', 'Test string option', multi=True)
+    descr = Leadership("dummy1", "", [dummy1, dummy2])
+    descr = OptionDescription("root", "", [descr])
+    api = Config(descr)
+    raises(ConfigError, "api.option('dummy1.dummy1').property.pop('frozen')")
+
+
 def test_force_default_on_freeze_follower():
     dummy1 = BoolOption('dummy1', 'Test int option', multi=True)
     dummy2 = BoolOption('dummy2', 'Test string option', multi=True, properties=('force_default_on_freeze',))

test/test_permissive.py

@@ -185,6 +185,7 @@ def test_forbidden_permissive():
     api = Config(descr)
     api.property.read_write()
     raises(ConfigError, "api.permissive.set(frozenset(['force_default_on_freeze']))")
+    raises(ConfigError, "api.permissive.set(frozenset(['force_metaconfig_on_freeze']))")
 
 
 def test_permissive_option():

tiramisu/option/leadership.py

@@ -167,7 +167,7 @@ class Leadership(OptionDescription):
                                    follower_path,
                                    index,
                                    config_bag)
-            # do not check force_default_on_freeze
+            # do not check force_default_on_freeze or force_metaconfig_on_freeze
             soption_bag.properties = set()
             if not values.is_default_owner(soption_bag,
                                            validate_meta=False) and followerlen > index:

tiramisu/option/optiondescription.py

@@ -90,12 +90,15 @@ class CacheOptionDescription(BaseOption):
                                                     '"force_store_value" property').format(
                                                         option.impl_get_display_name()))
                         force_store_values.append((subpath, option))
-                    if __debug__ and 'force_default_on_freeze' in properties and \
+                    if __debug__ and ('force_default_on_freeze' in properties or \
+                            'force_metaconfig_on_freeze' in properties) and \
                             'frozen' not in properties and \
                             option.impl_is_leader():
                         raise ConfigError(_('a leader ({0}) cannot have '
-                                            '"force_default_on_freeze" property without "frozen"'
+                                            '"force_default_on_freeze" or '
-                                            '').format(subpath))
+                                            '"force_metaconfig_on_freeze" '
+                                            'property without "frozen"'
+                                            '').format(option.impl_get_display_name()))
                 for cons_id, func, all_cons_opts, params in option.get_consistencies():
                     option._valid_consistencies(all_cons_opts[1:], init=False)
                     if func not in ALLOWED_CONST_LIST and is_multi:

tiramisu/setting.py

@@ -113,6 +113,7 @@ RW_REMOVE = frozenset(['permissive', 'everything_frozen', 'mandatory',
 
 FORBIDDEN_SET_PROPERTIES = frozenset(['force_store_value'])
 FORBIDDEN_SET_PERMISSIVES = frozenset(['force_default_on_freeze',
+                                       'force_metaconfig_on_freeze',
                                        'force_store_value'])
 
 
@@ -164,11 +165,14 @@ class OptionBag:
 
     def __delattr__(self, key):
         if key in ['properties', 'permissives']:
+            try:
+                super().__delattr__(key)
+            except AttributeError:
+                pass
             return
         raise KeyError('unknown key {} for ConfigBag'.format(key))  # pragma: no cover
 
     def copy(self):
-        kwargs = {}
         option_bag = OptionBag()
         for key in self.__slots__:
             if key == 'properties' and self.config_bag is undefined:
@@ -302,10 +306,10 @@ groups = GroupModule()
 groups.default = groups.DefaultGroupType('default')
 
 """groups.leadership
-        leadership group is a special optiondescription, all suboptions should be
+        leadership group is a special optiondescription, all suboptions should
-        multi option and all values should have same length, to find leader's
+        be multi option and all values should have same length, to find
-        option, the optiondescription's name should be same than de leader's
+        leader's option, the optiondescription's name should be same than de
-        option"""
+        leader's option"""
 groups.leadership = groups.LeadershipGroupType('leadership')
 
 """    groups.family
@@ -607,10 +611,9 @@ class Settings(object):
     def set_context_properties(self,
                                properties,
                                context):
-        self.setproperties(None,
+        self._p_.setproperties(None,
-                           properties,
+                               properties)
-                           None,
+        context.cfgimpl_reset_cache(None)
-                           context)
 
     def setproperties(self,
                       path,
@@ -621,32 +624,28 @@ class Settings(object):
         (never save properties if same has option properties)
         """
         # should have index !!!
-        if path is not None and option_bag.option.impl_getrequires() is not None:
+        opt = option_bag.option
+        if opt.impl_getrequires() is not None:
             not_allowed_props = properties & \
-                    getattr(option_bag.option, '_calc_properties', static_set)
+                    getattr(opt, '_calc_properties', static_set)
             if not_allowed_props:
                 raise ValueError(_('cannot set property {} for option "{}" this property is '
                                    'calculated').format(display_list(list(not_allowed_props),
                                                                      add_quote=True),
-                                                        option_bag.option.impl_get_display_name()))
+                                                        opt.impl_get_display_name()))
-        if option_bag is None:
+        if opt.impl_is_symlinkoption():
-            opt = None
-        else:
-            opt = option_bag.option
-        if opt and opt.impl_is_symlinkoption():
             raise TypeError(_("can't assign property to the symlinkoption \"{}\""
                               "").format(opt.impl_get_display_name()))
-        if 'force_default_on_freeze' in properties and \
+        if ('force_default_on_freeze' in properties or 'force_metaconfig_on_freeze' in properties) and \
                 'frozen' not in properties and \
                 opt.impl_is_leader():
             raise ConfigError(_('a leader ({0}) cannot have '
-                                '"force_default_on_freeze" property without "frozen"'
+                                '"force_default_on_freeze" or "force_metaconfig_on_freeze" property without "frozen"'
                                 '').format(opt.impl_get_display_name()))
         self._p_.setproperties(path,
                                properties)
         # values too because of follower values could have a PropertiesOptionError has value
         context.cfgimpl_reset_cache(option_bag)
-        if option_bag is not None:
         del option_bag.properties
 
     def set_context_permissives(self,

tiramisu/value.py

@@ -114,10 +114,12 @@ class Values(object):
                                          owners.default,
                                          index=_index,
                                          with_value=True)
-        if owner != owners.default and not ('frozen' in option_bag.properties and \
+        if owner != owners.default and \
-                'force_default_on_freeze' in option_bag.properties):
+                not ('frozen' in option_bag.properties and 'force_default_on_freeze' in option_bag.properties) and \
+                not ('frozen' in option_bag.properties and 'force_metaconfig_on_freeze' in option_bag.properties):
             # if a value is store in storage, check if not frozen + force_default_on_freeze
             # if frozen + force_default_on_freeze => force default value
+            # if frozen + force_metaconfig_on_freeze => force value of metaconfig
             return value
         return self.getdefaultvalue(option_bag)
 
@@ -325,8 +327,17 @@ class Values(object):
         doption_bag = option_bag.copy()
         config_bag = option_bag.config_bag.copy()
         config_bag.context = meta
-        config_bag.unrestraint()
         doption_bag.config_bag = config_bag
+        if 'force_metaconfig_on_freeze' in option_bag.properties:
+            # remove force_metaconfig_on_freeze only if option in metaconfig
+            # hasn't force_metaconfig_on_freeze properties
+            ori_properties = doption_bag.properties
+            del doption_bag.properties
+            if 'force_metaconfig_on_freeze' not in doption_bag.properties:
+                doption_bag.properties = ori_properties - {'force_metaconfig_on_freeze'}
+            else:
+                doption_bag.properties = ori_properties
+        config_bag.unrestraint()
         meta_option_bag = meta.cfgimpl_get_values().getowner(doption_bag,
                                                              only_default=True)
         if meta_option_bag == owners.default:
@@ -378,11 +389,14 @@ class Values(object):
             owner = self._p_.getowner(option_bag.path,
                                       owners.default,
                                       index=option_bag.index)
-        if owner is owners.default and validate_meta is not False:
+        if validate_meta is not False and (owner is owners.default or \
+                                           'force_metaconfig_on_freeze' in option_bag.properties):
             moption_bag = self._get_meta(option_bag)
             if moption_bag:
                 owner = moption_bag.config_bag.context.cfgimpl_get_values().getowner(moption_bag,
                                                                                      only_default=only_default)
+            elif 'force_metaconfig_on_freeze' in option_bag.properties:
+                return owners.default
         return owner
 
     def setowner(self,