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Add GitHub Actions for ci and release
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‎.github/workflows/ci.yml‎

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name: CI
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# Build-checks every push and pull request. Does not publish anything —
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# releases are handled by release.yml on version tags.
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on:
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push:
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branches: ['**']
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tags-ignore: ['**'] # tags are handled by release.yml
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pull_request:
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# A newer push to the same branch/PR cancels an in-flight run.
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concurrency:
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group: ci-${{ github.ref }}
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cancel-in-progress: true
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jobs:
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macos-metal:
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name: macOS Metal (arm64)
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runs-on: macos-15
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steps:
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- uses: actions/checkout@v6
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- name: Verify Metal sources embed cleanly
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run: make check-metal-sources
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- name: Build executables
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run: make
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- name: Build shared library
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run: make shared
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- name: Build test binary
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run: make ds4_test
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linux-cuda-x86_64:
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name: Linux CUDA (x86_64)
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runs-on: ubuntu-24.04
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steps:
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- uses: actions/checkout@v6
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- name: Install CUDA toolkit
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run: |
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wget -q https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64/cuda-keyring_1.1-1_all.deb
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sudo dpkg -i cuda-keyring_1.1-1_all.deb
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sudo apt-get update
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sudo apt-get install -y --no-install-recommends cuda-toolkit-12-8
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- name: Build shared library (CUDA)
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run: |
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export PATH="/usr/local/cuda/bin:$PATH"
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make shared
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- name: Build CPU-only variant
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run: |
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make clean
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make cpu
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make shared-cpu
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linux-cuda-arm64:
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name: Linux CUDA (arm64/sbsa)
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runs-on: ubuntu-24.04-arm
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steps:
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- uses: actions/checkout@v4
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- name: Install CUDA toolkit
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run: |
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wget -q https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/sbsa/cuda-keyring_1.1-1_all.deb
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sudo dpkg -i cuda-keyring_1.1-1_all.deb
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sudo apt-get update
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sudo apt-get install -y --no-install-recommends cuda-toolkit-12-8
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- name: Build shared library (CUDA)
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run: |
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export PATH="/usr/local/cuda/bin:$PATH"
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make shared
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- name: Build CPU-only variant
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run: |
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make clean
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make cpu
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make shared-cpu

‎.github/workflows/release.yml‎

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name: Release
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# Build the libds4 FFI shared library for each supported platform and attach
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# the results to a GitHub Release. Triggered by pushing a version tag, e.g.:
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#
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# git tag v1.2.3 && git push nm v1.2.3
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#
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on:
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push:
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tags:
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- 'v*'
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permissions:
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contents: write # needed to create the Release and upload assets
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env:
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# The Makefile defaults NATIVE_CPU_FLAG to -march=native / -mcpu=native,
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# which bakes in the *CI runner's* CPU. A binary tuned that way can crash
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# with SIGILL on an older/different CPU, so release artifacts use a portable
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# baseline instead. Raise these if you only target newer hardware.
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CPU_FLAG_X86: -march=x86-64-v3 # AVX2-era x86_64 baseline
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CPU_FLAG_ARM64_MACOS: -mcpu=apple-m1 # Apple Silicon baseline
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CPU_FLAG_ARM64_LINUX: -mcpu=neoverse-v2 # Grace / GB10 (DGX Spark)
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# CUDA toolkit apt package suffix from NVIDIA's ubuntu2404 repo.
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CUDA_PKG_VERSION: 12-8
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jobs:
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macos-metal-arm64:
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name: macOS Metal (arm64)
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runs-on: macos-15
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steps:
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- uses: actions/checkout@v6
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- name: Build libds4 (Metal)
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run: make shared NATIVE_CPU_FLAG="$CPU_FLAG_ARM64_MACOS"
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- name: Package
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run: |
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PKG="libds4-${GITHUB_REF_NAME}-macos-arm64-metal"
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mkdir -p "$PKG"
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cp libds4.dylib ds4.h LICENSE "$PKG/"
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tar -czf "$PKG.tar.gz" "$PKG"
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- uses: actions/upload-artifact@v4
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with:
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name: libds4-macos-arm64-metal
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path: libds4-*-macos-arm64-metal.tar.gz
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linux-cuda-x86_64:
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name: Linux CUDA (x86_64)
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runs-on: ubuntu-24.04
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steps:
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- uses: actions/checkout@v6
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- name: Install CUDA toolkit
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run: |
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wget -q https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64/cuda-keyring_1.1-1_all.deb
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sudo dpkg -i cuda-keyring_1.1-1_all.deb
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sudo apt-get update
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sudo apt-get install -y --no-install-recommends "cuda-toolkit-${CUDA_PKG_VERSION}"
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- name: Build libds4 (CUDA)
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run: |
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export PATH="/usr/local/cuda/bin:$PATH"
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make shared NATIVE_CPU_FLAG="$CPU_FLAG_X86"
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- name: Package
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run: |
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PKG="libds4-${GITHUB_REF_NAME}-linux-x86_64-cuda"
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mkdir -p "$PKG"
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cp libds4.so ds4.h LICENSE "$PKG/"
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tar -czf "$PKG.tar.gz" "$PKG"
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- uses: actions/upload-artifact@v4
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with:
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name: libds4-linux-x86_64-cuda
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path: libds4-*-linux-x86_64-cuda.tar.gz
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linux-cuda-arm64:
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name: Linux CUDA (arm64/sbsa)
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runs-on: ubuntu-24.04-arm
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steps:
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- uses: actions/checkout@v6
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- name: Install CUDA toolkit
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run: |
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wget -q https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/sbsa/cuda-keyring_1.1-1_all.deb
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sudo dpkg -i cuda-keyring_1.1-1_all.deb
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sudo apt-get update
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sudo apt-get install -y --no-install-recommends "cuda-toolkit-${CUDA_PKG_VERSION}"
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- name: Build libds4 (CUDA)
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run: |
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export PATH="/usr/local/cuda/bin:$PATH"
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make shared NATIVE_CPU_FLAG="$CPU_FLAG_ARM64_LINUX"
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- name: Package
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run: |
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PKG="libds4-${GITHUB_REF_NAME}-linux-arm64-cuda"
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mkdir -p "$PKG"
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cp libds4.so ds4.h LICENSE "$PKG/"
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tar -czf "$PKG.tar.gz" "$PKG"
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- uses: actions/upload-artifact@v4
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with:
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name: libds4-linux-arm64-cuda
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path: libds4-*-linux-arm64-cuda.tar.gz
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release:
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name: Publish GitHub Release
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needs: [macos-metal-arm64, linux-cuda-x86_64, linux-cuda-arm64]
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runs-on: ubuntu-latest
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steps:
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- uses: actions/download-artifact@v8
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with:
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path: artifacts
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merge-multiple: true
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- name: Generate checksums
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run: |
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cd artifacts
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sha256sum * > SHA256SUMS
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- uses: softprops/action-gh-release@v3
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with:
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files: artifacts/*
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generate_release_notes: true

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