wasm.yml

name: wasm
# on: pull_request
on:
  push:
    tags:
      - '*'
  pull_request:
    branches: ["main"]

env:
  EMSCRIPTEN_VERSION: 3.1.69
  OPENCV_SUBDIR: lib/cmake/opencv4

jobs:
  webassembly:
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        opencv-version: [4.10.0]
    env:
      SOURCE_DIR: ${{ github.workspace}}/opencv-${{ matrix.opencv-version }}
      CONTRIB_SOURCE_DIR: ${{ github.workspace}}/opencv_contrib-${{ matrix.opencv-version }}
      PACKAGE_NAME: libopencv-webassembly
      COMMON_CMAKE_OPTIONS: |
        -DCMAKE_TOOLCHAIN_FILE=${{ github.workspace}}/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake \
        -DCMAKE_INSTALL_PREFIX=install \
        -DCMAKE_BUILD_TYPE=Release \
        -DENABLE_PIC=FALSE \
        -DCPU_DISPATCH='' \
        -DCV_TRACE=OFF \
        -DBUILD_SHARED_LIBS=OFF \
        -DWITH_1394=OFF \
        -DWITH_ADE=OFF \
        -DWITH_VTK=OFF \
        -DWITH_EIGEN=OFF \
        -DWITH_FFMPEG=OFF \
        -DWITH_GSTREAMER=OFF \
        -DWITH_GTK=OFF \
        -DWITH_GTK_2_X=OFF \
        -DWITH_IPP=OFF \
        -DWITH_JASPER=OFF \
        -DWITH_JPEG=ON \
        -DWITH_WEBP=ON \
        -DWITH_OPENEXR=OFF \
        -DWITH_OPENGL=OFF \
        -DWITH_OPENVX=OFF \
        -DWITH_OPENNI=OFF \
        -DWITH_OPENNI2=OFF \
        -DWITH_PNG=ON \
        -DWITH_TBB=OFF \
        -DWITH_TIFF=OFF \
        -DWITH_V4L=OFF \
        -DWITH_OPENCL=OFF \
        -DWITH_OPENCL_SVM=OFF \
        -DWITH_OPENCLAMDFFT=OFF \
        -DWITH_OPENCLAMDBLAS=OFF \
        -DWITH_GPHOTO2=OFF \
        -DWITH_LAPACK=OFF \
        -DWITH_ITT=OFF \
        -DWITH_QUIRC=OFF \
        -DWITH_VULKAN=OFF \
        -DBUILD_ZLIB=ON \
        -DBUILD_opencv_apps=OFF \
        -DBUILD_opencv_calib3d=ON \
        -DBUILD_opencv_dnn=ON \
        -DBUILD_opencv_features2d=ON \
        -DBUILD_opencv_flann=ON \
        -DBUILD_opencv_gapi=ON \
        -DBUILD_opencv_ml=ON \
        -DBUILD_opencv_photo=ON \
        -DBUILD_opencv_imgcodecs=ON \
        -DBUILD_opencv_shape=OFF \
        -DBUILD_opencv_videoio=OFF \
        -DBUILD_opencv_videostab=OFF \
        -DBUILD_opencv_highgui=OFF \
        -DBUILD_opencv_superres=ON \
        -DBUILD_opencv_stitching=ON \
        -DBUILD_opencv_java=OFF \
        -DBUILD_opencv_js=ON \
        -DBUILD_opencv_python2=OFF \
        -DBUILD_opencv_python3=OFF \
        -DBUILD_EXAMPLES=OFF \
        -DBUILD_PACKAGE=OFF \
        -DBUILD_TESTS=OFF \
        -DBUILD_PERF_TESTS=OFF \
        -DBUILD_DOCS=OFF \
        -DWITH_PTHREADS_PF=OFF \
        -DCV_ENABLE_INTRINSICS=OFF \
        -DBUILD_WASM_INTRIN_TESTS=OFF \
        -DCMAKE_C_FLAGS="-s WASM=1 -s SINGLE_FILE=1 -s USE_PTHREADS=0" \
        -DCMAKE_CXX_FLAGS="-s WASM=1 -s SINGLE_FILE=1 -s USE_PTHREADS=0" \
    steps:
    - uses: actions/checkout@v4
    - name: emsdk
      run: |
        git clone https://github.com/emscripten-core/emsdk.git
        cd emsdk
        ./emsdk install $EMSCRIPTEN_VERSION
        ./emsdk activate $EMSCRIPTEN_VERSION
    - name: setup-opencv-source
      run: |
        git clone -b ${{ matrix.opencv-version }} https://github.com/opencv/opencv.git ${{ env.SOURCE_DIR }}
        git clone -b ${{ matrix.opencv-version }} https://github.com/opencv/opencv_contrib.git ${{ env.CONTRIB_SOURCE_DIR }}
    - name: build
      run: |
        source emsdk/emsdk_env.sh
        cd ${{ env.SOURCE_DIR }}
        mkdir build && cd build
        cmake ${{ env.COMMON_CMAKE_OPTIONS }} -S .. \
          -DOPENCV_EXTRA_MODULES_PATH="${{ env.CONTRIB_SOURCE_DIR }}/modules"
        cmake --build . --target install
    - name: package
      run: |
        rm -rf ${{ env.PACKAGE_NAME }}
        cp -rf ${{ env.SOURCE_DIR }}/build/install ${{ env.PACKAGE_NAME }}
        tar -zcvf ${{ env.PACKAGE_NAME }}.tar.gz -C ${{ env.PACKAGE_NAME }} .
    - name: upload
      uses: actions/upload-artifact@v4
      with:
        name: ${{ env.PACKAGE_NAME }}
        path: ${{ env.PACKAGE_NAME }}
    # - name: test
    #   run: |
    #     cd test
    #     mkdir build && cd build
    #     cmake ${{ env.COMMON_CMAKE_OPTIONS }} -S .. \
    #         -DCMAKE_C_FLAGS="-s WASM=1 -s USE_PTHREADS=0" \
    #         -DCMAKE_CXX_FLAGS="-s WASM=1 -s USE_PTHREADS=0" \
    #         -DOpenCV_DIR=${{ github.workspace }}/${{ env.PACKAGE_NAME }}/${{ env.OPENCV_SUBDIR }}
    - name: release
      uses: softprops/action-gh-release@v2
      if: startsWith(github.ref, 'refs/tags/')
      with:
        draft: true
        prerelease: false
        token: ${{ secrets.GITHUB_TOKEN }}
        files: ${{ env.PACKAGE_NAME }}.tar.gz

  # release:
  #   permissions:
  #     contents: write  # for softprops/action-gh-release to create a release
  #   needs: [webassembly]
  #   runs-on: ubuntu-latest
  #   steps:
  #   - name: download
  #     uses: actions/download-artifact@v4
  #     with:
  #       path: artifacts

  #   - name: create-release
  #     uses: softprops/action-gh-release@v2
  #     if: startsWith(github.ref, 'refs/tags/')
  #     with:
  #       draft: true
  #       prerelease: false
  #       token: ${{ secrets.GITHUB_TOKEN }}
  #       files: artifacts/*/*.zip