linux-arm.yml

name: Linux ARM

on:
  pull_request:
    types: [synchronize, opened]
  push:
    branches:
      - main

env:
  DEBIAN_FRONTEND: noninteractive
  OPENCV_VERSION: 4.13.0
  OPENCV_CACHE_VERSION: 1

jobs:
  build:

    runs-on: ubuntu-24.04-arm
    
    steps:
      - uses: actions/checkout@v6
        with:
          path: opencvsharp
          
      - name: Install dependencies
        run: |
          sudo apt-get update -y 
          sudo apt-get install -y  --no-install-recommends \
            apt-transport-https \
            software-properties-common \
            ca-certificates \
            g++ \
            make \
            cmake \
            libtbb-dev \
            libatlas-base-dev \
            libgtk-3-dev \
            libavcodec-dev \
            libavformat-dev \
            libswscale-dev \
            libdc1394-dev \
            libxine2-dev \
            libv4l-dev \
            libtheora-dev \
            libvorbis-dev \
            libxvidcore-dev \
            libopencore-amrnb-dev \
            libopencore-amrwb-dev \
            libx264-dev \
            libtesseract-dev 

      - name: Restore OpenCV cache
        id: opencv-cache
        uses: actions/cache/restore@v5
        with:
          path: ${{ github.workspace }}/opencv_artifacts/
          key: opencv-arm-${{ env.OPENCV_VERSION }}-rev${{ env.OPENCV_CACHE_VERSION }}

      - name: Checkout OpenCV
        if: steps.opencv-cache.outputs.cache-hit != 'true'
        uses: actions/checkout@v6
        with:
            repository: opencv/opencv
            path: opencv
            ref: ${{ env.OPENCV_VERSION }}
      - name: Checkout OpenCV Contrib
        if: steps.opencv-cache.outputs.cache-hit != 'true'
        uses: actions/checkout@v6
        with:
            repository: opencv/opencv_contrib
            path: opencv_contrib
            ref: ${{ env.OPENCV_VERSION }}

      - name: Build OpenCV
        if: steps.opencv-cache.outputs.cache-hit != 'true'
        run: |
          cmake \
            -S opencv \
            -B opencv/build \
            -D CMAKE_BUILD_TYPE=Release \
            -D OPENCV_EXTRA_MODULES_PATH=${GITHUB_WORKSPACE}/opencv_contrib/modules \
            -D BUILD_SHARED_LIBS=OFF \
            -D ENABLE_CXX11=ON \
            -D BUILD_EXAMPLES=OFF \
            -D BUILD_DOCS=OFF \
            -D BUILD_PERF_TESTS=OFF \
            -D BUILD_TESTS=OFF \
            -D BUILD_JAVA=OFF \
            -D BUILD_opencv_apps=OFF \
            -D BUILD_opencv_barcode=OFF \
            -D BUILD_opencv_java_bindings_generator=OFF \
            -D BUILD_opencv_python_bindings_generator=OFF \
            -D BUILD_opencv_python_tests=OFF \
            -D BUILD_opencv_ts=OFF \
            -D BUILD_opencv_js=OFF \
            -D BUILD_opencv_js_bindings_generator=OFF \
            -D BUILD_opencv_bioinspired=OFF \
            -D BUILD_opencv_ccalib=OFF \
            -D BUILD_opencv_datasets=OFF \
            -D BUILD_opencv_dnn_objdetect=OFF \
            -D BUILD_opencv_dpm=OFF \
            -D BUILD_opencv_fuzzy=OFF \
            -D BUILD_opencv_gapi=ON \
            -D BUILD_opencv_intensity_transform=OFF \
            -D BUILD_opencv_mcc=OFF \
            -D BUILD_opencv_objc_bindings_generator=OFF \
            -D BUILD_opencv_rapid=OFF \
            -D BUILD_opencv_reg=OFF \
            -D BUILD_opencv_stereo=OFF \
            -D BUILD_opencv_structured_light=OFF \
            -D BUILD_opencv_surface_matching=OFF \
            -D BUILD_opencv_wechat_qrcode=ON \
            -D BUILD_opencv_videostab=OFF \
            -D WITH_GSTREAMER=OFF \
            -D WITH_ADE=OFF \
            -D OPENCV_ENABLE_NONFREE=ON \
            -D CMAKE_INSTALL_PREFIX=${GITHUB_WORKSPACE}/opencv_artifacts
          cmake --build opencv/build -j 3
          cmake --install opencv/build
          sudo ldconfig
          ls

      - name: Save OpenCV cache
        if: steps.opencv-cache.outputs.cache-hit != 'true' && github.event_name == 'push' && github.ref == 'refs/heads/main'
        uses: actions/cache/save@v5
        with:
          path: ${{ github.workspace }}/opencv_artifacts/
          key: opencv-arm-${{ env.OPENCV_VERSION }}-rev${{ env.OPENCV_CACHE_VERSION }}
      
      - name: Build OpenCvSharpExtern
        run: |
          cmake \
            -S opencvsharp/src \
            -B opencvsharp/src/build \
            -D CMAKE_BUILD_TYPE=Release \
            -D CMAKE_PREFIX_PATH=${GITHUB_WORKSPACE}/opencv_artifacts
          cmake --build opencvsharp/src/build -j
          ls opencvsharp/src/build/OpenCvSharpExtern
          cp opencvsharp/src/build/OpenCvSharpExtern/libOpenCvSharpExtern.so ${GITHUB_WORKSPACE}/opencvsharp/nuget/

      - name: Check OpenCvSharpExtern
        run: |
          cd ${GITHUB_WORKSPACE}/opencvsharp/nuget/
          ldd libOpenCvSharpExtern.so
          nm libOpenCvSharpExtern.so
          echo -ne "#include <stdio.h> \n int core_Mat_sizeof(); int main(){ int i = core_Mat_sizeof(); printf(\"sizeof(Mat) = %d\", i); return 0; }" > test.c
          gcc -I./ -L./ test.c -o test -lOpenCvSharpExtern
          LD_LIBRARY_PATH=. ./test

      - name: Install .NET
        uses: actions/setup-dotnet@v5
        with:
          dotnet-version: '8.0.x'

      - name: Create NuGet package
        env: 
          BETA: "-beta"
        run: |
          yyyymmdd=`date '+%Y%m%d'`
          echo $yyyymmdd
          version="${OPENCV_VERSION}.${yyyymmdd}${BETA}"
          echo "Package version: $version"
          
          cd ${GITHUB_WORKSPACE}/opencvsharp
          dotnet pack nuget/OpenCvSharp4.runtime.linux-arm.csproj -o ${GITHUB_WORKSPACE}/artifacts_arm -p:Version=$version
          
          ls ${GITHUB_WORKSPACE}/artifacts_arm

      - uses: actions/upload-artifact@v6
        with:
          name: artifacts_linux_arm
          path: artifacts_arm
        
      - name: Test
        run: |
          cd ${GITHUB_WORKSPACE}/opencvsharp/test/OpenCvSharp.Tests
          dotnet build -c Release -f net8.0
          cp ${GITHUB_WORKSPACE}/opencvsharp/nuget/libOpenCvSharpExtern.so ${GITHUB_WORKSPACE}/opencvsharp/test/OpenCvSharp.Tests/bin/Release/net8.0/
          cp ${GITHUB_WORKSPACE}/opencvsharp/nuget/libOpenCvSharpExtern.so ${GITHUB_WORKSPACE}/opencvsharp/test/OpenCvSharp.Tests/
          sudo cp ${GITHUB_WORKSPACE}/opencvsharp/nuget/libOpenCvSharpExtern.so /usr/lib/
          LD_LIBRARY_PATH=. dotnet test OpenCvSharp.Tests.csproj -c Release -f net8.0 --runtime linux-arm64 --logger "trx;LogFileName=test-results.trx" < /dev/null