f3e21c6b98
Accumulated uncommitted work: GHOST Web backend, WebGL/GPU web layer, web workflow engine and protocol, tooling, docs and task records. Large generated evidence, user-testing archives, build snapshots and imported test assets remain untracked. Co-Authored-By: Claude Code <noreply@anthropic.com>
79 lines
4.5 KiB
Python
79 lines
4.5 KiB
Python
"""File -> Export jobs using Blender's registered exporters and RNA validation."""
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import hashlib
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import json
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from pathlib import Path
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import shutil
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import zipfile
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import bpy
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from server_operator_properties import validated_operator_properties
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FORMATS = {
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'GLB': ('export_scene.gltf', 'glb', 'use_selection', {'export_format': 'GLB'}),
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'GLTF': ('export_scene.gltf', 'gltf', 'use_selection', {'export_format': 'GLTF_SEPARATE', 'export_texture_dir': 'textures'}),
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'FBX': ('export_scene.fbx', 'fbx', 'use_selection', {'path_mode': 'COPY', 'embed_textures': True}),
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'OBJ': ('wm.obj_export', 'obj', 'export_selected_objects', {'path_mode': 'COPY'}),
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'STL': ('wm.stl_export', 'stl', 'export_selected_objects', {}),
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'PLY': ('wm.ply_export', 'ply', 'export_selected_objects', {}),
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'USD': ('wm.usd_export', 'usdc', 'selected_objects_only', {'export_textures': True, 'relative_paths': True}),
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'ALEMBIC': ('wm.alembic_export', 'abc', 'selected', {}),
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}
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def export_scene(root, spec, artifact, output):
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identifier, extension, selection_key, defaults = FORMATS[spec['format']]
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family, name = identifier.split('.')
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if family == 'export_scene':
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import addon_utils
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addon_utils.enable('io_scene_gltf2' if name == 'gltf' else 'io_scene_fbx', default_set=False, persistent=False)
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operator = getattr(getattr(bpy.ops, family), name)
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try:
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rna = operator.get_rna_type()
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except RuntimeError as error:
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raise RuntimeError('NATIVE_EXPORTER_UNAVAILABLE: ' + identifier) from error
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destination = root / 'export'
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destination.mkdir()
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filename = destination / ('scene.' + extension)
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supplied = spec.get('properties', {})
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# Output locations and batch modes belong to this job, never to caller input.
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blocked = {'filepath', 'directory', 'filename', 'files', 'check_existing',
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'filter_glob', 'batch_mode', 'use_batch_own_dir', 'as_background_job',
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'export_format', 'export_texture_dir', 'export_animation',
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'use_selection', 'export_selected_objects', 'selected_objects_only', 'selected'}
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for key in supplied:
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if key in blocked or any(token in key.lower() for token in ('path', 'directory', 'filename')):
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raise RuntimeError('NATIVE_EXPORT_MANAGED_PROPERTY: ' + key)
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values = dict(defaults, **supplied)
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values.update(filepath=str(filename), **{selection_key: spec['selectedOnly']})
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if 'check_existing' in rna.properties: values['check_existing'] = False
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if 'as_background_job' in rna.properties: values['as_background_job'] = False
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if spec['selectedOnly'] and not any(obj.select_get() for obj in bpy.context.view_layer.objects):
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raise RuntimeError('NATIVE_EXPORT_SELECTION_EMPTY')
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values = validated_operator_properties(operator, values)
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if not operator.poll(): raise RuntimeError('NATIVE_EXPORT_CONTEXT_UNAVAILABLE: ' + identifier)
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state = operator('EXEC_DEFAULT', **values)
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if 'FINISHED' not in state or not filename.is_file() or filename.stat().st_size == 0:
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raise RuntimeError('NATIVE_EXPORT_NO_OUTPUT: ' + identifier)
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files = []
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for file in sorted(destination.rglob('*')):
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if file.is_symlink(): raise RuntimeError('NATIVE_EXPORT_SYMLINK')
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if file.is_file():
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files.append({'name': file.relative_to(destination).as_posix(), 'bytes': file.stat().st_size,
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'sha256': hashlib.sha256(file.read_bytes()).hexdigest()})
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if len(files) > 10000 or sum(item['bytes'] for item in files) > 128 * 1024 * 1024:
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raise RuntimeError('NATIVE_EXPORT_PACKAGE_BUDGET')
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receipt = {'format': spec['format'], 'operator': identifier, 'blenderVersion': bpy.app.version_string,
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'selectedOnly': spec['selectedOnly'], 'files': files}
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(destination / 'export-receipt.json').write_text(json.dumps(receipt, indent=2), encoding='utf8')
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package = root / 'export-package.zip'
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with zipfile.ZipFile(package, 'w', zipfile.ZIP_DEFLATED) as bundle:
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for file in sorted(destination.rglob('*')):
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if file.is_file(): bundle.write(file, file.relative_to(destination).as_posix())
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artifact(package, 'application/zip')
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# Multi-file formats must be downloaded as the package to retain relative resources.
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if len(files) == 1:
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standalone = root / filename.name
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shutil.copyfile(filename, standalone)
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artifact(standalone, 'model/gltf-binary' if extension == 'glb' else 'application/octet-stream')
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output.write(json.dumps(receipt, indent=2) + '\n')
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