Bumped version to 1.20

Disable BAT's Strict Pointer Mode to work around issues with dangling
pointers in the Blender Animation Studio files. These seem to be caused
by not-perfectly-resynced library overrides. Ignoring those pointers
seems to cause less problems than crashing on them.

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Blender Cloud changelog
 
+## Version 1.20 (2021-07-22)
+- Bump blender-asset-tracer version 1.3.1 -> 1.5.1.
+- Blender-asset-tracer "Strict Pointer Mode" disabled, to avoid issues with
+  not-entirely-synced library overrides.
+
+## Version 1.19 (2021-02-23)
+
+- Another Python 3.9+ compatibility fix.
+
 ## Version 1.18 (2021-02-16)
 
 - Add compatibility with Python 3.9 (as used in Blender 2.93).

blender_cloud/__init__.py

@@ -21,7 +21,7 @@
 bl_info = {
     "name": "Blender Cloud",
     "author": "Sybren A. Stüvel, Francesco Siddi, Inês Almeida, Antony Riakiotakis",
-    "version": (1, 18),
+    "version": (1, 20),
     "blender": (2, 80, 0),
     "location": "Addon Preferences panel, and Ctrl+Shift+Alt+A anywhere for texture browser",
     "description": "Texture library browser and Blender Sync. Requires the Blender ID addon "

blender_cloud/blender.py

@@ -47,7 +47,7 @@ log = logging.getLogger(__name__)
 icons = None
 
 
-@pyside_cache("version")
+@pyside_cache
 def blender_syncable_versions(self, context):
     """Returns the list of items used by SyncStatusProperties.version EnumProperty."""
 
@@ -117,7 +117,7 @@ class SyncStatusProperties(PropertyGroup):
         self["available_blender_versions"] = new_versions
 
 
-@pyside_cache("project")
+@pyside_cache
 def bcloud_available_projects(self, context):
     """Returns the list of items used by BlenderCloudProjectGroup.project EnumProperty."""
 

blender_cloud/flamenco/__init__.py

@@ -54,6 +54,8 @@ from bpy.props import (
 from .. import async_loop, pillar, project_specific, utils
 from ..utils import pyside_cache, redraw
 
+import blender_asset_tracer.blendfile
+
 log = logging.getLogger(__name__)
 
 # Global flag used to determine whether panels etc. can be drawn.
@@ -91,7 +93,7 @@ def scene_sample_count(scene) -> int:
     return samples
 
 
-@pyside_cache("manager")
+@pyside_cache
 def available_managers(self, context):
     """Returns the list of items used by a manager-selector EnumProperty."""
 
@@ -649,6 +651,12 @@ class FLAMENCO_OT_render(
 
         self.log.debug("projdir: %s", projdir)
 
+        # Due to issues with library overrides and unsynced pointers, it's quite
+        # common for the Blender Animation Studio to get crashes of BAT. To avoid
+        # these, Strict Pointer Mode is disabled.
+
+        blender_asset_tracer.blendfile.set_strict_pointer_mode(False)
+
         if is_shaman_url(prefs.flamenco_job_file_path):
             endpoint, _ = bat_interface.parse_shaman_endpoint(
                 prefs.flamenco_job_file_path

blender_cloud/utils.py

@@ -19,6 +19,7 @@
 import json
 import pathlib
 import typing
+from typing import Any, Dict, Optional, Tuple
 
 
 def sizeof_fmt(num: int, suffix="B") -> str:
@@ -35,7 +36,7 @@ def sizeof_fmt(num: int, suffix="B") -> str:
     return "%.1f Yi%s" % (num, suffix)
 
 
-def find_in_path(path: pathlib.Path, filename: str) -> typing.Optional[pathlib.Path]:
+def find_in_path(path: pathlib.Path, filename: str) -> Optional[pathlib.Path]:
     """Performs a breadth-first search for the filename.
 
     Returns the path that contains the file, or None if not found.
@@ -66,41 +67,29 @@ def find_in_path(path: pathlib.Path, filename: str) -> typing.Optional[pathlib.P
     return None
 
 
-def pyside_cache(propname):
+# Mapping from (module name, function name) to the last value returned by that function.
+_pyside_cache: Dict[Tuple[str, str], Any] = {}
+
+
+def pyside_cache(wrapped):
     """Decorator, stores the result of the decorated callable in Python-managed memory.
 
     This is to work around the warning at
     https://www.blender.org/api/blender_python_api_master/bpy.props.html#bpy.props.EnumProperty
     """
 
-    if callable(propname):
-        raise TypeError('Usage: pyside_cache("property_name")')
+    import functools
 
-    def decorator(wrapped):
-        """Stores the result of the callable in Python-managed memory.
-
-        This is to work around the warning at
-        https://www.blender.org/api/blender_python_api_master/bpy.props.html#bpy.props.EnumProperty
-        """
-
-        import functools
-
-        @functools.wraps(wrapped)
-        # We can't use (*args, **kwargs), because EnumProperty explicitly checks
-        # for the number of fixed positional arguments.
-        def wrapper(self, context):
-            result = None
-            try:
-                result = wrapped(self, context)
-                return result
-            finally:
-                try:
-                    rna_type, rna_info = self.bl_rna.__annotations__[propname]
-                except AttributeError:
-                    rna_type, rna_info = getattr(self.bl_rna, propname)
-                rna_info["_cached_result"] = result
-
-        return wrapper
+    @functools.wraps(wrapped)
+    # We can't use (*args, **kwargs), because EnumProperty explicitly checks
+    # for the number of fixed positional arguments.
+    def decorator(self, context):
+        result = None
+        try:
+            result = wrapped(self, context)
+            return result
+        finally:
+            _pyside_cache[wrapped.__module__, wrapped.__name__] = result
 
     return decorator
 

requirements.txt

@@ -3,7 +3,7 @@
 lockfile==0.12.2
 pillarsdk==1.8.0
 wheel==0.29.0
-blender-asset-tracer==1.3.1
+blender-asset-tracer==1.5.1
 
 # Secondary requirements:
 asn1crypto==0.24.0

setup.py

@@ -248,8 +248,9 @@ setup(
         "install_egg_info": AvoidEggInfo,
         "wheels": BuildWheels,
     },
+    name="blender_cloud",
     description="The Blender Cloud addon allows browsing the Blender Cloud from Blender.",
-    version="1.18",
+    version="1.20",
     author="Sybren A. Stüvel",
     author_email="sybren@stuvel.eu",
     packages=find_packages("."),