Flamenco: Allow BAT-packing of only relative-path assets

CHANGELOG.md

@@ -3,13 +3,16 @@
 
 ## Version 1.9.5 (in development)
 
+- Requires Blender-Asset-Tracer 0.7 or newer.
 - Fix crashing Blender when running in background mode (e.g. without GUI).
 - Flamenco: Include extra job parameters to allow for encoding a video at the end of a render
   job that produced an image sequence.
 - Flamenco: Compress all blend files, and not just the one we save from Blender.
-  Requires BAT 0.5 or newer.
 - Flamenco: Store more info in the `jobinfo.json` file. This is mostly useful for debugging issues
   on the render farm, as now things like the exclusion filter and Manager settings are logged too.
+- Flamenco: Allow BAT-packing of only those assets that are referred to by relative path (e.g.
+  a path starting with `//`). Assets with an absolute path are ignored, and assumed to be reachable
+  at the same path by the Workers.
 
 
 ## Version 1.9.4 (2018-11-01)

blender_cloud/blender.py

@@ -248,6 +248,15 @@ class BlenderCloudPreferences(AddonPreferences):
         soft_max=4,
         update=project_specific.store,
     )
+    flamenco_relative_only = BoolProperty(
+        name='Relative Paths Only',
+        description='When enabled, only assets that are referred to with a relative path are '
+                    'packed, and assets referred to by an absolute path are excluded from the '
+                    'BAT pack. When disabled, all assets are packed.',
+        default=False,
+        update=project_specific.store,
+    )
+
     flamenco_open_browser_after_submit = BoolProperty(
         name='Open Browser after Submitting Job',
         description='When enabled, Blender will open a webbrowser',
@@ -473,6 +482,7 @@ class BlenderCloudPreferences(AddonPreferences):
             path_box.label(text='Blend file is not in your project path, '
                                 'unable to give output path example.')
 
+        flamenco_box.prop(self, 'flamenco_relative_only')
         flamenco_box.prop(self, 'flamenco_open_browser_after_submit')
 
 

blender_cloud/flamenco/__init__.py

@@ -87,10 +87,9 @@ def manager_updated(self: 'FlamencoManagerGroup', context):
         return
 
     with project_specific.mark_as_loading():
-        for name in project_specific.FLAMENCO_PER_PROJECT_PER_MANAGER:
+        project_specific.update_preferences(prefs,
-            if name not in pppm:
+                                            project_specific.FLAMENCO_PER_PROJECT_PER_MANAGER,
-                continue
+                                            pppm)
-            setattr(prefs, name, pppm[name])
 
 
 class FlamencoManagerGroup(PropertyGroup):
@@ -422,6 +421,7 @@ class FLAMENCO_OT_render(async_loop.AsyncModalOperatorMixin,
         proj_abspath = bpy.path.abspath(prefs.cloud_project_local_path)
         projdir = Path(proj_abspath).resolve()
         exclusion_filter = (prefs.flamenco_exclude_filter or '').strip()
+        relative_only = prefs.flamenco_relative_only
 
         self.log.debug('outdir : %s', outdir)
         self.log.debug('projdir: %s', projdir)
@@ -436,7 +436,8 @@ class FLAMENCO_OT_render(async_loop.AsyncModalOperatorMixin,
 
         try:
             outfile, missing_sources = await bat_interface.copy(
-                bpy.context, filepath, projdir, outdir, exclusion_filter)
+                bpy.context, filepath, projdir, outdir, exclusion_filter,
+                relative_only=relative_only)
         except bat_interface.FileTransferError as ex:
             self.log.error('Could not transfer %d files, starting with %s',
                            len(ex.files_remaining), ex.files_remaining[0])

blender_cloud/flamenco/bat_interface.py

@@ -10,7 +10,6 @@ import bpy
 from blender_asset_tracer import pack
 from blender_asset_tracer.pack import progress, transfer
 
-
 log = logging.getLogger(__name__)
 
 _running_packer = None  # type: pack.Packer
@@ -97,7 +96,9 @@ async def copy(context,
                base_blendfile: pathlib.Path,
                project: pathlib.Path,
                target: pathlib.Path,
-               exclusion_filter: str) -> typing.Tuple[pathlib.Path, typing.Set[pathlib.Path]]:
+               exclusion_filter: str,
+               *,
+               relative_only: bool) -> typing.Tuple[pathlib.Path, typing.Set[pathlib.Path]]:
     """Use BAT🦇 to copy the given file and dependencies to the target location.
 
     :raises: FileTransferError if a file couldn't be transferred.
@@ -109,7 +110,8 @@ async def copy(context,
 
     wm = bpy.context.window_manager
 
-    with pack.Packer(base_blendfile, project, target, compress=True) as packer:
+    with pack.Packer(base_blendfile, project, target, compress=True, relative_only=relative_only) \
+            as packer:
         with _packer_lock:
             if exclusion_filter:
                 packer.exclude(*exclusion_filter.split())

blender_cloud/project_specific.py

@@ -2,6 +2,7 @@
 
 import contextlib
 import logging
+import typing
 
 # Names of BlenderCloudPreferences properties that are both project-specific
 # and simple enough to store directly in a dict.
@@ -16,6 +17,7 @@ FLAMENCO_PER_PROJECT_PER_MANAGER = (
     'flamenco_job_file_path',
     'flamenco_job_output_path',
     'flamenco_job_output_strip_components',
+    'flamenco_relative_only',
 )
 
 log = logging.getLogger(__name__)
@@ -36,6 +38,27 @@ def mark_as_loading():
         project_settings_loading -= 1
 
 
+def update_preferences(prefs, names_to_update: typing.Iterable[str],
+                       new_values: typing.Mapping[str, typing.Any]):
+    for name in names_to_update:
+        if not hasattr(prefs, name):
+            log.debug('not setting %r, property cannot be found', name)
+            continue
+
+        if name in new_values:
+            log.debug('setting %r = %r', name, new_values[name])
+            setattr(prefs, name, new_values[name])
+        else:
+            # The property wasn't stored, so set the default value instead.
+            bl_type, args = getattr(prefs.bl_rna, name)
+            log.debug('finding default value for %r', name)
+            if 'default' not in args:
+                log.debug('no default value for %r, not touching', name)
+                continue
+            log.debug('found default value for %r = %r', name, args['default'])
+            setattr(prefs, name, args['default'])
+
+
 def handle_project_update(_=None, _2=None):
     """Handles changing projects, which may cause extensions to be disabled/enabled.
 
@@ -78,9 +101,7 @@ def handle_project_update(_=None, _2=None):
             log.debug('loading project-specific settings:\n%s', pformat(ps.to_dict()))
 
         # Restore simple properties.
-        for name in PROJECT_SPECIFIC_SIMPLE_PROPS:
+        update_preferences(prefs, PROJECT_SPECIFIC_SIMPLE_PROPS, ps)
-            if name in ps and hasattr(prefs, name):
-                setattr(prefs, name, ps[name])
 
         # Restore Flamenco settings.
         prefs.flamenco_manager.available_managers = ps.get('flamenco_available_managers', [])

requirements.txt

@@ -3,7 +3,7 @@
 lockfile==0.12.2
 pillarsdk==1.7.0
 wheel==0.29.0
-blender-asset-tracer>=0.5
+blender-asset-tracer>=0.7
 
 # Secondary requirements:
 asn1crypto==0.24.0