77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
#!/usr/bin/env python3
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import hashlib
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import json
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import os
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import pathlib
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import sys
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import tempfile
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import bpy
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TEXT_NAME = "WBV2-P1-002-SceneIRContract"
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def read_contract():
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text = bpy.data.texts.get(TEXT_NAME)
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if text is None:
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raise RuntimeError("SCENEIR_CONTRACT_INVALID: contract text is missing")
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source = text.as_string()
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return source, json.loads(source)
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def scene_summary():
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obj = bpy.data.objects.get("WBV2P1002CubeObject")
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if obj is None or obj.type != "MESH":
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raise RuntimeError("SCENEIR_CONTRACT_INVALID: cube object is missing")
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mesh = obj.data
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mesh.calc_loop_triangles()
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positions = [value for vertex in mesh.vertices for value in vertex.co]
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normalized_positions = [int(value) if value == int(value) else round(value, 6) for value in positions]
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return {
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"objectId": "object:" + obj.name,
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"meshId": "mesh:" + mesh.name,
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"vertexCount": len(mesh.vertices),
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"triangleCount": len(mesh.loop_triangles),
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"positionHash": hashlib.sha256(json.dumps(normalized_positions, separators=(",", ":")).encode("utf-8")).hexdigest(),
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}
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def main():
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arguments = sys.argv[sys.argv.index("--") + 1 :]
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if len(arguments) != 2:
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raise SystemExit("usage: blender -b --python check-wbv2-p1-002-desktop.py -- FIXTURE REPORT")
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fixture, output = (pathlib.Path(value).resolve() for value in arguments)
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bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
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source, before = read_contract()
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summary = scene_summary()
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descriptor, temporary = tempfile.mkstemp(prefix="wbv2-p1-002-reopen-", suffix=".blend", dir=fixture.parent)
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os.close(descriptor)
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try:
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bpy.ops.wm.save_as_mainfile(filepath=temporary, check_existing=False, compress=True)
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bpy.ops.wm.open_mainfile(filepath=temporary, load_ui=False)
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after_source, after = read_contract()
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after_summary = scene_summary()
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finally:
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pathlib.Path(temporary).unlink(missing_ok=True)
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if before != after or source != after_source or summary != after_summary:
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raise RuntimeError("SCENEIR_CONTRACT_INVALID: desktop save/reopen drift")
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value = {
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"schemaVersion": 1,
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"task": "WBV2-P1-002",
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"operation": "SCENEIR_STABLE_IDS_BINARY_DELTA_DESKTOP",
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"fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
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"contract": after,
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"summary": after_summary,
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"sourceSha256": hashlib.sha256(after_source.encode("utf-8")).hexdigest(),
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"saveReopen": "EXACT",
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"blenderVersion": bpy.app.version_string,
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}
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output.parent.mkdir(parents=True, exist_ok=True)
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output.write_text(json.dumps(value, indent=2, sort_keys=True) + "\n", encoding="utf-8")
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print(f"wbv2-p1-002-desktop-ok mesh={after_summary['meshId']} vertices={after_summary['vertexCount']} triangles={after_summary['triangleCount']} saveReopen=exact")
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if __name__ == "__main__":
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main()
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