build-usearch.yml

# SPDX-FileCopyrightText: 2026 The RISE Project
# SPDX-License-Identifier: MIT
---
# Based on the `build_wheels` job of
# https://github.com/unum-cloud/USearch/blob/v2.26.1/.github/workflows/release.yml
name: Build usearch wheels (riscv64)

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Version glob to (re)build; empty builds every version of docs/packages/usearch.yaml not released yet'
        required: false
        default: ''
  pull_request:
    branches: [main]
    paths:
      - '.github/workflows/build-usearch.yml'
      - 'docs/packages/usearch.yaml'
  push:
    branches: [main]
    paths:
      - '.github/workflows/build-usearch.yml'
      - 'docs/packages/usearch.yaml'

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

permissions:
  contents: read  # to fetch code (actions/checkout)

env:
  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64

jobs:
  setup:
    uses: $/.github/workflows/_setup.yml
    with:
      package: usearch
      version: ${{ inputs.version }}

  build_wheels:
    needs: [setup]
    if: needs.setup.outputs.versions != '[]'
    name: Build usearch ${{ matrix.version }} ${{ matrix.python }}-manylinux_riscv64
    runs-on: ubuntu-24.04-riscv
    timeout-minutes: 90
    strategy:
      fail-fast: false
      matrix:
        version: ${{ fromJSON(needs.setup.outputs.versions) }}
        python: ["cp312", "cp313", "cp314", "cp314t"]

    env:
      USEARCH_VERSION: ${{ matrix.version }}

    steps:
      - name: Checkout usearch v${{ env.USEARCH_VERSION }}
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
        with:
          repository: unum-cloud/USearch
          ref: v${{ env.USEARCH_VERSION }}
          persist-credentials: false

      - name: Build wheels
        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
        with:
          output-dir: wheelhouse/
          only: ${{ matrix.python }}-manylinux_riscv64
        env:
          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
          # setup.py unconditionally links -static-libstdc++ on Linux; the
          # image's gcc-c++ package doesn't pull in the static archive, so
          # add it to upstream's own before-all (glibc-devel wget python3-devel).
          CIBW_BEFORE_ALL_LINUX: >-
            yum update -y --disablerepo=extras --setopt=install_weak_deps=0 &&
            yum install -y --disablerepo=extras glibc-devel wget python3-devel libstdc++-static
          # numpy has no riscv64 wheel on public PyPI yet; numkong and cmake
          # already publish one there, so only numpy needs our registry.
          # PIP_PREFER_BINARY (gotcha 354) keeps an unpinned numpy build
          # requirement from racing a same-day PyPI release that our own
          # riscv64 wheel hasn't been published for yet, which otherwise
          # falls back to a from-source build that ICEs the manylinux gcc.
          CIBW_ENVIRONMENT: >-
            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
            PIP_PREFER_BINARY=1
          # Upstream disables cibuildwheel's own test step (pyproject.toml:
          # "everything is happening in a super slow container" / tests run in
          # prerelease.yml instead) - run that suite here since it's the only
          # place riscv64 wheels get tested. numba/cppyy/peachpy are skipped:
          # none has a riscv64 wheel, and every test using them already
          # self-skips via ImportError (or a platform.machine() check for
          # peachpy) when the optional package is absent.
          CIBW_TEST_REQUIRES: pytest pytest-repeat
          CIBW_TEST_COMMAND: pytest {package}/python/scripts

      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
        with:
          name: usearch-${{ env.USEARCH_VERSION }}-${{ matrix.python }}-manylinux_riscv64
          path: wheelhouse/*.whl
          if-no-files-found: error

  gpl_sources:
    needs: [setup]
    if: needs.setup.outputs.versions != '[]'
    strategy:
      fail-fast: false
      matrix:
        version: ${{ fromJSON(needs.setup.outputs.versions) }}
    name: Collect GPL sources
    runs-on: ubuntu-24.04-riscv
    env:
      USEARCH_VERSION: ${{ matrix.version }}

    steps:
      - name: Checkout python-wheels
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
        with:
          persist-credentials: false

      # setup.py unconditionally passes -static-libstdc++ on Linux, embedding
      # the image's gcc runtime into usearch/compiled.*.so.
      - uses: ./actions/collect-gpl-sources
        with:
          image: ${{ env.MANYLINUX_RISCV64_IMAGE }}
          packages: gcc
          output: gpl-sources.tar

      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
        with:
          name: usearch-${{ env.USEARCH_VERSION }}-gpl-sources
          path: gpl-sources.tar
          if-no-files-found: error

  publish:
    name: Publish usearch ${{ matrix.version }}
    needs: [setup, build_wheels, gpl_sources]
    if: needs.setup.outputs.versions != '[]'
    strategy:
      fail-fast: false
      matrix:
        version: ${{ fromJSON(needs.setup.outputs.versions) }}
    permissions:
      contents: write
      pull-requests: write
    uses: $/.github/workflows/_publish-wheel.yml
    secrets:
      app-private-key: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
    with:
      artifact-pattern: usearch-${{ matrix.version }}-*-manylinux_riscv64
      gpl-sources-artifact: usearch-${{ matrix.version }}-gpl-sources
      gpl-sources-description: gcc