build-and-release.yaml

name: Build Release

on: workflow_dispatch

permissions:
  contents: write

jobs:
  build_wheels:
    name: Build wheels on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-22.04, windows-2022, macos-14, macos-15]

    steps:
      - uses: actions/checkout@v6
        with:
          submodules: "recursive"

      # Used to host cibuildwheel
      - uses: actions/setup-python@v6
        with:
          python-version: "3.9"

      - name: Install dependencies (Linux/MacOS)
        if: runner.os != 'Windows'
        run: |
          python -m pip install --upgrade pip
          python -m pip install uv
          RUST_LOG=trace python -m uv pip install -e .[all] --verbose
        shell: bash

      - name: Install dependencies (Windows)
        if: runner.os == 'Windows'
        env:
          RUST_LOG: trace        
        run: |
          python -m pip install --upgrade pip
          python -m pip install uv
          python -m uv pip install -e .[all] --verbose
        shell: cmd

      - name: Build wheels
        uses: pypa/cibuildwheel@v3.4.1
        env:
          # Keep repair disabled by default for non-Linux platforms in this job.
          CIBW_REPAIR_WHEEL_COMMAND: ""
          # Linux needs auditwheel repair so manylinux and musllinux wheels are
          # published with distinct platform tags instead of generic linux tags.
          CIBW_REPAIR_WHEEL_COMMAND_LINUX: "LD_LIBRARY_PATH=/project/llama_cpp/lib auditwheel repair -w {dest_dir} {wheel}"
          # cibuildwheel v3 defaults to manylinux_2_28 images whose current
          # GCC toolchain emits symbols newer than the policy allows.
          CIBW_MANYLINUX_X86_64_IMAGE: "manylinux2014"
          # The release wheel is tagged py3-none, so one build per platform
          # covers all supported Python versions and avoids duplicate names.
          CIBW_BUILD_LINUX: "cp38-*"
          CIBW_BUILD_MACOS: "cp39-*"
          CIBW_BUILD_WINDOWS: "cp39-*"
          # Skip cibuildwheel's default i686 sidecar and keep Linux release
          # wheels on a portable x86_64 CPU baseline.
          CIBW_ARCHS_LINUX: "auto64"
          CIBW_ARCHS_WINDOWS: "AMD64"
          CIBW_ENVIRONMENT_LINUX: CMAKE_ARGS="-DGGML_NATIVE=off"
          # Keep macOS release wheels on a portable CPU baseline instead of
          # inheriting the hosted runner's native flags.
          CIBW_ENVIRONMENT_MACOS: CMAKE_ARGS="-DGGML_NATIVE=off"
        with:
          package-dir: .
          output-dir: wheelhouse

      - uses: actions/upload-artifact@v7
        with:
          name: wheels-${{ matrix.os }}
          path: ./wheelhouse/*.whl

  build_wheels_arm64:
    name: Build arm64 wheels
    runs-on: ubuntu-24.04-arm
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: "recursive"

      - name: Build wheels
        uses: pypa/cibuildwheel@v3.4.1
        env:
          CIBW_SKIP: "pp*"
          CIBW_REPAIR_WHEEL_COMMAND: "LD_LIBRARY_PATH=$PWD/llama_cpp/lib auditwheel repair -w {dest_dir} {wheel}"
          CIBW_ARCHS: "aarch64"
          # Keep this consistent with the x86_64 Linux release wheels.
          CIBW_MANYLINUX_AARCH64_IMAGE: "manylinux2014"
          # Keep native arm64 builds on a portable CPU baseline instead of
          # tuning wheels to the hosted runner.
          CIBW_ENVIRONMENT: CMAKE_ARGS="-DGGML_NATIVE=off"
          # The release wheel is tagged py3-none, so one build covers all
          # supported Python versions and avoids duplicate wheel names.
          CIBW_BUILD: "cp38-*"
        with:
          output-dir: wheelhouse

      - name: Upload wheels as artifacts
        uses: actions/upload-artifact@v7
        with:
          name: wheels_arm64
          path: ./wheelhouse/*.whl

  build_wheels_riscv64:
    name: Build riscv64 wheel
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: "recursive"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4
        with:
          platforms: linux/riscv64

      - name: Build wheels
        uses: pypa/cibuildwheel@v3.4.1
        env:
          CIBW_SKIP: "*musllinux* pp*"
          CIBW_REPAIR_WHEEL_COMMAND: ""
          CIBW_ARCHS: "riscv64"
          # Build riscv64 wheels against a conservative baseline instead of
          # enabling RVV-related extensions from the build container.
          CIBW_ENVIRONMENT: CMAKE_ARGS="-DGGML_NATIVE=off -DGGML_RVV=off -DGGML_RV_ZFH=off -DGGML_RV_ZVFH=off -DGGML_RV_ZICBOP=off -DGGML_RV_ZIHINTPAUSE=off"
          # The release wheel is tagged py3-none, so one riscv64 build is
          # enough and avoids duplicate same-name release artifacts.
          CIBW_BUILD: "cp310-*"
        with:
          output-dir: wheelhouse

      - name: Upload wheels as artifacts
        uses: actions/upload-artifact@v7
        with:
          name: wheels_riscv64
          path: ./wheelhouse/*.whl

  build_sdist:
    name: Build source distribution
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6
        with:
          submodules: "recursive"

      - uses: actions/setup-python@v6
        with:
          python-version: "3.9"

      - name: Install dependencies (Linux/MacOS)
        if: runner.os != 'Windows'
        run: |
          python -m pip install --upgrade pip
          python -m pip install uv
          RUST_LOG=trace python -m uv pip install -e .[all] --verbose
          python -m uv pip install build
        shell: bash

      - name: Install dependencies (Windows)
        if: runner.os == 'Windows'
        env:
          RUST_LOG: trace        
        run: |
          python -m pip install --upgrade pip
          python -m pip install uv
          python -m uv pip install -e .[all] --verbose
          python -m uv pip install build
        shell: cmd

      - name: Build source distribution
        run: |
          python -m build --sdist

      - uses: actions/upload-artifact@v7
        with:
          name: sdist
          path: ./dist/*.tar.gz

  release:
    name: Release
    needs: [build_wheels, build_wheels_arm64, build_wheels_riscv64, build_sdist]
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest

    steps:
      - uses: actions/download-artifact@v8
        with:
          merge-multiple: true
          path: dist

      - uses: softprops/action-gh-release@v3
        with:
          files: dist/*
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}