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.
47 lines
1.9 KiB
TOML
47 lines
1.9 KiB
TOML
[build-system]
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requires = ["scikit-build-core>=0.11", "nanobind>=2.7"]
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build-backend = "scikit_build_core.build"
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[project]
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name = "n3xd-ocp"
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# <occt-version>.N, so the kernel a wheel wraps is readable from its version
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# alone and occt_version() keeps reporting the truth. Iteration builds carry a
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# .devN suffix: the registry never allows republishing a version, and its
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# cleanup rule collects only the dev ones. CMake asserts the prefix matches
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# the OCCT it found.
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version = "7.9.3.1.dev1"
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description = "nanobind bindings for the OpenCASCADE geometry kernel (drop-in OCP)"
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readme = "README.md"
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requires-python = ">=3.12"
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license = { text = "LGPL-2.1-only" }
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authors = [{ name = "N3XD" }]
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classifiers = [
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"Private :: Do Not Upload",
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"Programming Language :: Python :: 3.12",
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"Programming Language :: C++",
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]
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[project.urls]
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Repository = "https://git.stroblme.de/N3XD/ocp"
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[tool.scikit-build]
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minimum-version = "0.11"
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build-dir = "build/{wheel_tag}"
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wheel.packages = ["python/OCP", "python/n3xd_ocp"]
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# Stubs are generated during the build and gitignored, and file selection is
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# git-based by default — so they must be re-included by hand or the wheel ships
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# without the typing surface that retires the backend's ty suppression.
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sdist.include = ["python/OCP/*.pyi", "python/n3xd_ocp/*.pyi"]
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# abi3 from day one, matching the forge/assay convention: one wheel spans 3.12
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# and 3.13, so the interpreter bump (roadmap 10D) needs no rebuild here.
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wheel.py-api = "cp312"
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# No sdist is ever published — it could not build without the OCCT builder
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# image, and offering one would invite the production host (4 cores) to try.
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# That is enforced by only ever building wheels (scripts/build_wheel.sh) rather
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# than by an exclude rule here: scikit-build-core feeds sdist.exclude into the
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# wheel's package-file mapping too, so excluding "*" silently ships a wheel
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# with the compiled extension and none of the Python package.
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[tool.pytest.ini_options]
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testpaths = ["tests"]
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