stroblme
6139852768
Builds n3xd-ocp end to end and publishes 7.9.3.1.dev1 to the Gitea registry, where it installs anonymously and passes its suite. - occt/Dockerfile: OCCT 7.9.3 compiled once into a manylinux_2_28 builder image (base digest + tarball sha256 pinned), Draw/VTK/Tk/Xlib/OpenGL off, FreeType on, -O2 without fast-math or march=native. A final layer asserts TKService/TKV3d exist with no libGL/libX11 DT_NEEDED, which is what lets the app image drop libgl1/libx11-6. Mounted into, never built FROM. - scikit-build-core + nanobind STABLE_ABI -> one cp312-abi3 extension that registers every OCP.* submodule via PyImport_AddModule, so `import OCP.TopoDS` needs no shim and cls.__module__ is right. Version <occt>.N is asserted against the OCCT found, keeping occt_version() truthful. - occt_handle.h: type caster for opencascade::handle<T> over OCCT's intrusive refcount. Wrappers are non-owning instances holding exactly one handle in their keep-alive list, reusing an existing wrapper so identity survives a round trip. Transient constructors go through ocp_new (never nb::init<>, which would let OCCT delete nanobind's storage); the caster refuses a refcount-0 object rather than corrupt the heap. Verified under ASAN with no memory-safety errors, plus an RSS bound over 50k create/destroy cycles. - Sub-shapes are returned by value everywhere, making the TShape lifetime class that segfaulted a process-global face memo unrepresentable. - Standard_Failure derives RuntimeError, with ~20 concrete types dispatched on the dynamic OCCT type (cad_pool marshals failures home by type name). - Inc 0 surface: gp subset, TopAbs, TopoDS (+ downcasts), TopExp, TopLoc, TopTools, BRep, BinTools, Poly, Standard. 34 of the app's 139 symbols. - n3xd_ocp: additive APIs kept out of the OCP namespace so parity testing stays meaningful. bintools (shape <-> bytes, GIL-free, byte-identical) and _debug. Two findings worth the record, both verified against the stock wheel rather than assumed: upstream binds __hash__ but leaves __eq__ at identity, which is exactly what geom_memo.py's hash-bucket + IsSame scan is built around, so we match it instead of "fixing" it; and BinTools can release the GIL after all, by slurping the file-like object instead of bridging a streambuf that would call back into Python. Gate: BREP round-trips are byte-identical to cadquery-ocp-novtk across six fixtures (the generator asserts stock idempotency first). That matters beyond IPC — derive.py content-addresses BREP payloads by sha256 and stores the ref.
52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
"""Shared fixtures.
|
|
|
|
Inc 0 binds no modelling API, so shapes for the tests are built the long way:
|
|
a compound assembled through BRep_Builder, and shapes read back from the
|
|
committed .brep fixtures (tests/data), which were produced by the *stock*
|
|
wheel — see tools/gen_fixtures.py.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import io
|
|
import json
|
|
import pathlib
|
|
|
|
import pytest
|
|
from OCP.BinTools import BinTools
|
|
from OCP.TopoDS import TopoDS_Shape
|
|
|
|
DATA = pathlib.Path(__file__).parent / "data"
|
|
|
|
|
|
def load_brep(path: pathlib.Path) -> TopoDS_Shape:
|
|
shape = TopoDS_Shape()
|
|
with path.open("rb") as fh:
|
|
BinTools.Read_s(shape, io.BytesIO(fh.read()))
|
|
return shape
|
|
|
|
|
|
@pytest.fixture(scope="session")
|
|
def manifest() -> dict:
|
|
path = DATA / "manifest.json"
|
|
if not path.exists():
|
|
pytest.skip("fixtures not generated — run tools/gen_fixtures.py")
|
|
return json.loads(path.read_text())
|
|
|
|
|
|
@pytest.fixture(scope="session")
|
|
def fixture_shapes(manifest) -> dict[str, TopoDS_Shape]:
|
|
return {name: load_brep(DATA / f"{name}.brep") for name in manifest["shapes"]}
|
|
|
|
|
|
@pytest.fixture
|
|
def a_face(fixture_shapes):
|
|
"""First face of the meshed box fixture."""
|
|
from OCP.TopAbs import TopAbs_FACE
|
|
from OCP.TopExp import TopExp
|
|
from OCP.TopTools import TopTools_IndexedMapOfShape
|
|
|
|
faces = TopTools_IndexedMapOfShape()
|
|
TopExp.MapShapes_s(fixture_shapes["box_meshed"], TopAbs_FACE, faces)
|
|
return faces.FindKey(1)
|