--- a/hooks/syncsources.py Mon Jan 04 18:40:30 2016 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,208 +0,0 @@
-# copyright 2010-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
-# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
-#
-# This file is part of CubicWeb.
-#
-# CubicWeb 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 2.1 of the License, or (at your option)
-# any later version.
-#
-# CubicWeb 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 CubicWeb. If not, see <http://www.gnu.org/licenses/>.
-"""hooks for repository sources synchronization"""
-
-from cubicweb import _
-
-from socket import gethostname
-
-from logilab.common.decorators import clear_cache
-
-from cubicweb import validation_error
-from cubicweb.predicates import is_instance
-from cubicweb.server import SOURCE_TYPES, hook
-
-class SourceHook(hook.Hook):
- __abstract__ = True
- category = 'cw.sources'
-
-
-# repo sources synchronization #################################################
-
-class SourceAddedOp(hook.Operation):
- entity = None # make pylint happy
- def postcommit_event(self):
- self.cnx.repo.add_source(self.entity)
-
-class SourceAddedHook(SourceHook):
- __regid__ = 'cw.sources.added'
- __select__ = SourceHook.__select__ & is_instance('CWSource')
- events = ('after_add_entity',)
- def __call__(self):
- try:
- sourcecls = SOURCE_TYPES[self.entity.type]
- except KeyError:
- msg = _('Unknown source type')
- raise validation_error(self.entity, {('type', 'subject'): msg})
- # ignore creation of the system source done during database
- # initialisation, as config for this source is in a file and handling
- # is done separatly (no need for the operation either)
- if self.entity.name != 'system':
- sourcecls.check_conf_dict(self.entity.eid, self.entity.host_config,
- fail_if_unknown=not self._cw.vreg.config.repairing)
- SourceAddedOp(self._cw, entity=self.entity)
-
-
-class SourceRemovedOp(hook.Operation):
- uri = None # make pylint happy
- def postcommit_event(self):
- self.cnx.repo.remove_source(self.uri)
-
-class SourceRemovedHook(SourceHook):
- __regid__ = 'cw.sources.removed'
- __select__ = SourceHook.__select__ & is_instance('CWSource')
- events = ('before_delete_entity',)
- def __call__(self):
- if self.entity.name == 'system':
- msg = _("You cannot remove the system source")
- raise validation_error(self.entity, {None: msg})
- SourceRemovedOp(self._cw, uri=self.entity.name)
-
-
-class SourceConfigUpdatedOp(hook.DataOperationMixIn, hook.Operation):
-
- def precommit_event(self):
- self.__processed = []
- for source in self.get_data():
- if not self.cnx.deleted_in_transaction(source.eid):
- conf = source.repo_source.check_config(source)
- self.__processed.append( (source, conf) )
-
- def postcommit_event(self):
- for source, conf in self.__processed:
- source.repo_source.update_config(source, conf)
-
-
-class SourceRenamedOp(hook.LateOperation):
- oldname = newname = None # make pylint happy
-
- def precommit_event(self):
- source = self.cnx.repo.sources_by_uri[self.oldname]
- sql = 'UPDATE entities SET asource=%(newname)s WHERE asource=%(oldname)s'
- self.cnx.system_sql(sql, {'oldname': self.oldname,
- 'newname': self.newname})
-
- def postcommit_event(self):
- repo = self.cnx.repo
- # XXX race condition
- source = repo.sources_by_uri.pop(self.oldname)
- source.uri = self.newname
- source.public_config['uri'] = self.newname
- repo.sources_by_uri[self.newname] = source
- repo._type_source_cache.clear()
- clear_cache(repo, 'source_defs')
-
-
-class SourceUpdatedHook(SourceHook):
- __regid__ = 'cw.sources.configupdate'
- __select__ = SourceHook.__select__ & is_instance('CWSource')
- events = ('before_update_entity',)
- def __call__(self):
- if 'name' in self.entity.cw_edited:
- oldname, newname = self.entity.cw_edited.oldnewvalue('name')
- if oldname == 'system':
- msg = _("You cannot rename the system source")
- raise validation_error(self.entity, {('name', 'subject'): msg})
- SourceRenamedOp(self._cw, oldname=oldname, newname=newname)
- if 'config' in self.entity.cw_edited or 'url' in self.entity.cw_edited:
- if self.entity.name == 'system' and self.entity.config:
- msg = _("Configuration of the system source goes to "
- "the 'sources' file, not in the database")
- raise validation_error(self.entity, {('config', 'subject'): msg})
- SourceConfigUpdatedOp.get_instance(self._cw).add_data(self.entity)
-
-
-class SourceHostConfigUpdatedHook(SourceHook):
- __regid__ = 'cw.sources.hostconfigupdate'
- __select__ = SourceHook.__select__ & is_instance('CWSourceHostConfig')
- events = ('after_add_entity', 'after_update_entity', 'before_delete_entity',)
- def __call__(self):
- if self.entity.match(gethostname()):
- if self.event == 'after_update_entity' and \
- not 'config' in self.entity.cw_edited:
- return
- try:
- SourceConfigUpdatedOp.get_instance(self._cw).add_data(self.entity.cwsource)
- except IndexError:
- # XXX no source linked to the host config yet
- pass
-
-
-# source mapping synchronization ###############################################
-#
-# Expect cw_for_source/cw_schema are immutable relations (i.e. can't change from
-# a source or schema to another).
-
-class SourceMappingImmutableHook(SourceHook):
- """check cw_for_source and cw_schema are immutable relations
-
- XXX empty delete perms would be enough?
- """
- __regid__ = 'cw.sources.mapping.immutable'
- __select__ = SourceHook.__select__ & hook.match_rtype('cw_for_source', 'cw_schema')
- events = ('before_add_relation',)
- def __call__(self):
- if not self._cw.added_in_transaction(self.eidfrom):
- msg = _("You can't change this relation")
- raise validation_error(self.eidfrom, {self.rtype: msg})
-
-
-class SourceMappingChangedOp(hook.DataOperationMixIn, hook.Operation):
- def check_or_update(self, checkonly):
- cnx = self.cnx
- # take care, can't call get_data() twice
- try:
- data = self.__data
- except AttributeError:
- data = self.__data = self.get_data()
- for schemacfg, source in data:
- if source is None:
- source = schemacfg.cwsource.repo_source
- if cnx.added_in_transaction(schemacfg.eid):
- if not cnx.deleted_in_transaction(schemacfg.eid):
- source.add_schema_config(schemacfg, checkonly=checkonly)
- elif cnx.deleted_in_transaction(schemacfg.eid):
- source.del_schema_config(schemacfg, checkonly=checkonly)
- else:
- source.update_schema_config(schemacfg, checkonly=checkonly)
-
- def precommit_event(self):
- self.check_or_update(True)
-
- def postcommit_event(self):
- self.check_or_update(False)
-
-
-class SourceMappingChangedHook(SourceHook):
- __regid__ = 'cw.sources.schemaconfig'
- __select__ = SourceHook.__select__ & is_instance('CWSourceSchemaConfig')
- events = ('after_add_entity', 'after_update_entity')
- def __call__(self):
- if self.event == 'after_add_entity' or (
- self.event == 'after_update_entity' and 'options' in self.entity.cw_edited):
- SourceMappingChangedOp.get_instance(self._cw).add_data(
- (self.entity, None) )
-
-class SourceMappingDeleteHook(SourceHook):
- __regid__ = 'cw.sources.delschemaconfig'
- __select__ = SourceHook.__select__ & hook.match_rtype('cw_for_source')
- events = ('before_delete_relation',)
- def __call__(self):
- SourceMappingChangedOp.get_instance(self._cw).add_data(
- (self._cw.entity_from_eid(self.eidfrom),
- self._cw.entity_from_eid(self.eidto).repo_source) )