52 lines
2.2 KiB
Python
52 lines
2.2 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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def graph_report():
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material = bpy.data.materials.get("WebGapNodeTreeMaterial")
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if material is None or not material.use_nodes:
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raise RuntimeError("WebGapNodeTreeMaterial is missing")
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tree = material.node_tree
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return {
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"id": "nodetree:WebGapNodeTreeMaterial",
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"name": tree.name,
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"nodeTypes": sorted(node.bl_idname for node in tree.nodes),
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"nodeNames": sorted(node.name for node in tree.nodes),
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"linkCount": len(tree.links),
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"links": sorted([[link.from_node.bl_idname, link.from_socket.name, link.to_node.bl_idname, link.to_socket.name] for link in tree.links]),
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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-nodetree-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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before = graph_report()
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descriptor, temporary = tempfile.mkstemp(prefix="m16-nodetree-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 = graph_report()
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finally:
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pathlib.Path(temporary).unlink(missing_ok=True)
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if before != after:
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raise RuntimeError(f"node tree save/reopen drift: {before} != {after}")
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report = {"schemaVersion": 1, "task": "M16-GAP-00016", "operation": "NODETREE_DATABLOCK_DESKTOP", "fixture": str(fixture), "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(), "nodeTree": after, "saveReopen": "EXACT", "blenderVersion": bpy.app.version_string}
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output.parent.mkdir(parents=True, exist_ok=True)
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output.write_text(json.dumps(report, indent=2, sort_keys=True) + "\n", encoding="utf-8")
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print(f"nodetree-desktop-ok id={after['id']} nodes={len(after['nodeTypes'])} links={after['linkCount']} saveReopen=exact")
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if __name__ == "__main__":
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main()
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