multi-user/multi_user/handlers.py

156 lines
6.2 KiB
Python

# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
# ##### END GPL LICENSE BLOCK #####
import logging
import bpy
from bpy.app.handlers import persistent
from replication import porcelain
from replication.constants import RP_COMMON, STATE_ACTIVE, STATE_SYNCING, UP
from replication.exception import ContextError, NonAuthorizedOperationError
from replication.interface import session
from . import shared_data, utils
def sanitize_deps_graph(remove_nodes: bool = False):
""" Cleanup the replication graph
"""
if session and session.state == STATE_ACTIVE:
start = utils.current_milli_time()
rm_cpt = 0
for node in session.repository.graph.values():
node.instance = session.repository.rdp.resolve(node.data)
if node is None \
or (node.state == UP and not node.instance):
if remove_nodes:
try:
porcelain.rm(session.repository,
node.uuid,
remove_dependencies=False)
logging.info(f"Removing {node.uuid}")
rm_cpt += 1
except NonAuthorizedOperationError:
continue
logging.info(f"Sanitize took { utils.current_milli_time()-start} ms, removed {rm_cpt} nodes")
def update_external_dependencies():
"""Force external dependencies(files such as images) evaluation
"""
external_types = ['WindowsPath', 'PosixPath', 'Image']
nodes_ids = [n.uuid for n in session.repository.graph.values() if n.data['type_id'] in external_types]
for node_id in nodes_ids:
node = session.repository.graph.get(node_id)
if node and node.owner in [session.repository.username, RP_COMMON]:
porcelain.commit(session.repository, node_id)
porcelain.push(session.repository, 'origin', node_id)
@persistent
def on_scene_update(scene):
"""Forward blender depsgraph update to replication
"""
if session and session.state == STATE_ACTIVE:
context = bpy.context
blender_depsgraph = bpy.context.view_layer.depsgraph
dependency_updates = [u for u in blender_depsgraph.updates]
settings = utils.get_preferences()
incoming_updates = shared_data.session.applied_updates
distant_update = [getattr(u.id, 'uuid', None) for u in dependency_updates if getattr(u.id, 'uuid', None) in incoming_updates]
if distant_update:
for u in distant_update:
shared_data.session.applied_updates.remove(u)
logging.debug(f"Ignoring distant update of {dependency_updates[0].id.name}")
return
# NOTE: maybe we don't need to check each update but only the first
for update in reversed(dependency_updates):
update_uuid = getattr(update.id, 'uuid', None)
if update_uuid:
node = session.repository.graph.get(update.id.uuid)
check_common = session.repository.rdp.get_implementation(update.id).bl_check_common
if node and (node.owner == session.repository.username or check_common):
logging.debug(f"Evaluate {update.id.name}")
if node.state == UP:
try:
porcelain.commit(session.repository, node.uuid)
porcelain.push(session.repository,
'origin', node.uuid)
except ReferenceError:
logging.debug(f"Reference error {node.uuid}")
except ContextError as e:
logging.debug(e)
except Exception as e:
logging.error(e)
else:
continue
elif isinstance(update.id, bpy.types.Scene):
scene = bpy.data.scenes.get(update.id.name)
scn_uuid = porcelain.add(session.repository, scene)
porcelain.commit(session.repository, scn_uuid)
porcelain.push(session.repository, 'origin', scn_uuid)
scene_graph_changed = [u for u in reversed(dependency_updates) if getattr(u.id, 'uuid', None) and isinstance(u.id,(bpy.types.Scene,bpy.types.Collection))]
if scene_graph_changed:
porcelain.purge_orphan_nodes(session.repository)
update_external_dependencies()
@persistent
def resolve_deps_graph(dummy):
"""Resolve deps graph
Temporary solution to resolve each node pointers after a Undo.
A future solution should be to avoid storing dataclock reference...
"""
if session and session.state == STATE_ACTIVE:
sanitize_deps_graph(remove_nodes=True)
@persistent
def load_pre_handler(dummy):
if session and session.state in [STATE_ACTIVE, STATE_SYNCING]:
bpy.ops.session.stop()
@persistent
def update_client_frame(scene):
if session and session.state == STATE_ACTIVE:
porcelain.update_user_metadata(session.repository, {
'frame_current': scene.frame_current
})
def register():
bpy.app.handlers.undo_post.append(resolve_deps_graph)
bpy.app.handlers.redo_post.append(resolve_deps_graph)
bpy.app.handlers.load_pre.append(load_pre_handler)
bpy.app.handlers.frame_change_pre.append(update_client_frame)
def unregister():
bpy.app.handlers.undo_post.remove(resolve_deps_graph)
bpy.app.handlers.redo_post.remove(resolve_deps_graph)
bpy.app.handlers.load_pre.remove(load_pre_handler)
bpy.app.handlers.frame_change_pre.remove(update_client_frame)