Add pip install support via scikit-build-core + cibuildwheel (#4862) #35

	# Copyright (c) Meta Platforms, Inc. and affiliates.
	#
	# This source code is licensed under the MIT license found in the
	# LICENSE file in the root directory of this source tree.

	name: Build pip wheels

	on:
	workflow_call:
	workflow_dispatch:
	pull_request:
	branches:
	- main
	paths:
	- 'pyproject.toml'
	- 'faiss/python/**'
	- '.github/workflows/build-pip.yml'

	jobs:
	build-wheels:
	name: Build wheels on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-14, windows-2022, 2-core-ubuntu-arm]
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	fetch-tags: true

	- name: Build wheels
	uses: pypa/cibuildwheel@v2.22
	env:
	CIBW_BUILD_VERBOSITY: 1

	- name: Upload wheels
	uses: actions/upload-artifact@v4
	with:
	name: wheels-${{ matrix.os }}
	path: wheelhouse/*.whl

	build-sdist:
	name: Build source distribution
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	fetch-tags: true

	- name: Build sdist
	run: pipx run build --sdist

	- name: Upload sdist
	uses: actions/upload-artifact@v4
	with:
	name: sdist
	path: dist/*.tar.gz

	publish:
	name: Publish to PyPI
	needs: [build-wheels, build-sdist]
	runs-on: ubuntu-latest
	if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
	environment:
	name: pypi
	url: https://pypi.org/p/faiss-cpu
	permissions:
	id-token: write
	steps:
	- name: Download all artifacts
	uses: actions/download-artifact@v4
	with:
	path: dist
	merge-multiple: true

	- name: Publish to PyPI
	uses: pypa/gh-action-pypi-publish@release/v1

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