fboudra opened a new pull request, #51377: URL: https://github.com/apache/arrow/pull/51377
### Rationale for this change https://github.com/apache/arrow/issues/50398 https://github.com/apache/arrow/issues/50829 ### What changes are included in this PR? CI only, no Python code changes. The wheel matrix changes from one build per Python version to one cp311-abi3 build per platform (49 wheel tasks down to 7). The build runs on Python 3.14 because limited API builds need >= 3.13 dev headers (the vendored pythoncapi_compat.h shims for older versions reference internals the limited API hides), and the wheel tag is forced with SKBUILD_WHEEL_PY_API. That env var is a rename of SKBUILD_WHEEL__PY_API, which scikit-build-core >= 1.0 silently ignores because it joins the prefix and the dataclass field with single underscores. The per-version cp312 wheel drops out of the matrix, since the cp311-abi3 wheel already covers 3.11 through 3.15. Gates on the xlinux builds: - The limited API symbol audit (from PR 5) runs before auditwheel, against libpython3.11 from the wheel image, with a fallback to the python3.11 interpreter binary because the 2026.09 base images ship CPython without a shared libpython. Freethreading builds are exempt. - A performance gate: python/scripts/perf_gate.py runs 13 benchmarks after auditwheel and fails if any median is more than 2x the committed reference (python/scripts/perf_gate_reference.json). This is a cross-machine tripwire, not a comparison against upstream, so CI has no PyPI dependency. Regenerate the reference after intentional performance changes with --write. Testing per platform: the Linux abi3 row import-checks the wheel on 3.11, 3.12, 3.13, 3.14 and 3.15-rc, runs the full unittests on the build interpreter, and keeps the OS gates (Ubuntu 22.04 on 3.11, AlmaLinux 8 on 3.12, Ubuntu 24.04 on 3.12). The Windows abi3 row gains a Python 3.11 step that imports the abi3 .pyd against the unversioned python3.dll. The macOS abi3 row tests on 3.14. The freethreading rows are dropped: CPython does not support the limited API in free-threaded builds (3.14t hard errors on Py_LIMITED_API, gh-111506, and 3.15t limited API headers do not compile). Re-add them once CPython allows it. Also fixes python_wheel_validate_contents.py to accept the +g<sha> local version segment that setuptools_scm adds on dirty checkouts, which broke local wheel validation runs; CI checkouts are clean and were unaffected. Verification: local container runs of the manylinux 2.28 and musllinux 1.2 wheel tasks, green end to end (build, strip, symbol audit, auditwheel repair, perf gate), plus the musl wheel import swept on 3.11, 3.12, 3.13, 3.14 and 3.15-rc. First GHA runs of the macOS and Windows rows are pending. ### Are these changes tested? Yes ### Are there any user-facing changes? No ### Was AI used for this PR? **PR code and description written by:** - [x ] Human - [ ] AI **Reviewed before submission by:** - [ x] Human - [ ] AI - [ ] Not reviewed -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
