snap.yml

name: Cross-Platform Build Matrix

on:
  push:
    branches: [ "main" ]
  workflow_dispatch:

jobs:
  build-snap-linux:
    name: Linux x86 (Snap Publish)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4

    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y build-essential cmake libopencv-dev libtbb-dev libomp-dev

    - name: Configure and Build Tests (Linux)
      run: |
        mkdir build_test
        cd build_test
        cmake .. -DCMAKE_CXX_STANDARD=23 -DENABLE_CUDA=OFF
        make -j$(nproc)
    
    - name: Run Unit Tests (Linux)
      run: |
        cd build_test

        echo "Running absTest..."
        ./absTest

        echo "Running dct2Test..."
        ./dct2Test

        echo "Running dct2Test3..."
        ./dct2Test3
    
    - name: Upload Executable
      uses: actions/upload-artifact@v4
      with:
        name: TinyDIP-build-${{ runner.os }}
        path: |
          build_test/*
        retention-days: 90

    - name: Clean up Build Artifacts
      run: rm -rf build_test

    - name: Build Snap Package
      uses: snapcore/action-build@v1
      id: build

    - name: Publish Snap
      uses: snapcore/action-publish@v1
      env:
        SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.SNAPCRAFT_STORE_CREDENTIALS }}
      with:
        snap: ${{ steps.build.outputs.snap }}
        release: edge
  
  verify-linux-gcc-15-source:
    name: Linux x86 (GCC 15.2.0 Source)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4

    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y build-essential cmake libopencv-dev libtbb-dev libomp-dev flex bison libgmp-dev libmpfr-dev libmpc-dev

    - name: Cache Custom GCC
      id: cache-gcc
      uses: actions/cache@v3
      with:
        path: /opt/gcc-15.2.0
        key: gcc-15.2.0-source-build-${{ runner.os }}-v1

    - name: Compile GCC 15.2.0 from Source
      if: steps.cache-gcc.outputs.cache-hit != 'true'
      run: |
        echo "Compiling GCC 15.2.0 from source... This may take 1-2 hours."
        wget https://ftp.gnu.org/gnu/gcc/gcc-15.2.0/gcc-15.2.0.tar.gz
        tar xzf gcc-15.2.0.tar.gz
        cd gcc-15.2.0
        
        ./contrib/download_prerequisites
        
        mkdir build && cd build
        
        ../configure --prefix=/opt/gcc-15.2.0 --enable-languages=c,c++ --disable-multilib
        
        make -j$(nproc)
        
        sudo make install
        
        cd ../..
        rm -rf gcc-15.2.0 gcc-15.2.0.tar.gz

    - name: Configure and Build Tests (Linux GCC 15)
      run: |
        mkdir build_test_gcc
        cd build_test_gcc
        
        cmake .. \
          -DCMAKE_CXX_STANDARD=23 \
          -DENABLE_CUDA=OFF \
          -DCMAKE_C_COMPILER=/opt/gcc-15.2.0/bin/gcc \
          -DCMAKE_CXX_COMPILER=/opt/gcc-15.2.0/bin/g++ \
          -DCMAKE_CXX_FLAGS="-Wl,-rpath,/opt/gcc-15.2.0/lib64"
        
        make -j$(nproc)
    
    - name: Run Unit Tests (Linux GCC 15)
      run: |
        cd build_test_gcc

        echo "Running absTest..."
        ./absTest

        echo "Running dct2Test..."
        ./dct2Test

    - name: Upload Executable (GCC 15)
      uses: actions/upload-artifact@v4
      with:
        name: TinyDIP-build-gcc15-${{ runner.os }}
        path: build_test_gcc/*
        retention-days: 90

    - name: Clean up Build Artifacts
      run: rm -rf build_test_gcc
  
  verify-linux-gcc-15-self-hosted:
    name: Linux x86 (GCC 15.2.0 - Local Machine)
    runs-on: [self-hosted, linux]
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Check Environment
      run: |
        g++ --version
        cmake --version
        /opt/gcc-15.2.0/bin/g++ --version

    - name: Configure and Build Tests (Fast)
      run: |
        rm -rf build_test_gcc_local
        mkdir build_test_gcc_local
        cd build_test_gcc_local
        
        cmake .. \
          -DCMAKE_CXX_STANDARD=23 \
          -DENABLE_CUDA=OFF \
          -DCMAKE_C_COMPILER=/opt/gcc-15.2.0/bin/gcc \
          -DCMAKE_CXX_COMPILER=/opt/gcc-15.2.0/bin/g++ \
          -DCMAKE_CXX_FLAGS="-Wl,-rpath,/opt/gcc-15.2.0/lib64"
        
        make -j$(nproc)
    
    - name: Run Unit Tests
      run: |
        cd build_test_gcc_local
        echo "Running absTest..."
        ./absTest

        echo "Running dct2Test..."
        ./dct2Test

    - name: Upload Executable
      uses: actions/upload-artifact@v4
      with:
        name: TinyDIP-build-gcc15-self-hosted
        path: build_test_gcc_local/*
        retention-days: 90
        
    - name: Final Clean up
      if: always()
      run: rm -rf build_test_gcc_local
  
  linux-perf-profiling:
    name: Linux x86 (Perf Profiling)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4

    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y build-essential cmake libopencv-dev libtbb-dev libomp-dev linux-tools-common linux-tools-generic linux-tools-azure
        sudo apt-get install -y "linux-tools-$(uname -r)" "linux-cloud-tools-$(uname -r)" || true
        find /usr/lib/linux-tools -name perf -type f -executable | head -n 1

    - name: Configure and Build Tests (Linux)
      run: |
        mkdir build_test
        cd build_test
        cmake .. -DCMAKE_CXX_STANDARD=23 -DENABLE_CUDA=OFF -DCMAKE_CXX_FLAGS="-fno-omit-frame-pointer"
        make -j$(nproc)

    - name: Run Performance Profiling (perf)
      run: |
        cd build_test
        echo "Listing /usr/lib/linux-tools contents:"
        ls -R /usr/lib/linux-tools || true
        
        PERF_BIN=""
        
        echo "Searching for executable perf binary in /usr/lib/linux-tools/*/"
        
        for p in /usr/lib/linux-tools/*/perf; do
            if [ -x "$p" ]; then
                echo "Found executable: $p"
                PERF_BIN="$p"
                break
            fi
        done
        
        if [ -z "$PERF_BIN" ]; then
             echo "Glob search failed. Trying recursive find without type constraints..."
             PERF_BIN=$(find /usr/lib/linux-tools -name perf -executable 2>/dev/null | head -n 1)
        fi

        if [ -z "$PERF_BIN" ]; then
          echo "Error: Could not find any perf binary."
          exit 1
        fi
        
        echo "Selected perf binary: $PERF_BIN"
        
        echo "========================================="
        echo "Profiling ./absTest"
        echo "========================================="
        sudo "$PERF_BIN" record -o perf_abs.data --call-graph dwarf ./absTest
        sudo "$PERF_BIN" report -i perf_abs.data --stdio

        echo "========================================="
        echo "Profiling ./dct2Test"
        echo "========================================="
        sudo "$PERF_BIN" record -o perf_dct2.data --call-graph dwarf ./dct2Test
        sudo "$PERF_BIN" report -i perf_dct2.data --stdio

    - name: Clean up Build Artifacts
      run: rm -rf build_test
  
  verify-macos:
    name: macOS (GCC 14)
    runs-on: macos-latest
    steps:
    - uses: actions/checkout@v4

    - name: Install Dependencies
      run: |
        brew update
        brew install gcc cmake opencv tbb libomp

    - name: Configure CMake (macOS)
      run: |
        mkdir build_mac
        cd build_mac
        
        cmake .. \
          -DCMAKE_CXX_STANDARD=23 \
          -DENABLE_CUDA=OFF \
          -DCMAKE_C_COMPILER="gcc-14" \
          -DCMAKE_CXX_COMPILER="g++-14"

    - name: Build (macOS)
      run: |
        cd build_mac
        make -j3

    - name: Run Unit Tests (macOS)
      run: |
        cd build_mac
        echo "Running Tests on macOS..."
        echo "Running absTest..."
        ./absTest

        echo "Running dct2Test..."
        ./dct2Test

    - name: Clean up Build Artifacts
      run: rm -rf build_mac

  verify-windows:
    name: Windows (MSVC)
    runs-on: windows-latest
    steps:
    - uses: actions/checkout@v4

    - name: Restore vcpkg artifacts
      uses: actions/cache@v3
      with:
        path: |
          C:\vcpkg\installed
          C:\vcpkg\packages
        key: vcpkg-${{ runner.os }}-opencv-tbb-v1

    - name: Install Libraries via vcpkg
      run: |
        vcpkg install opencv:x64-windows tbb:x64-windows boost:x64-windows

    - name: Configure CMake
      run: |
        cmake -S . -B build_win `
          -DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake `
          -DCMAKE_CXX_STANDARD=23 `
          -DENABLE_CUDA=OFF

    - name: Build
      run: cmake --build build_win --config Release

    - name: Run Test
      run: .\build_win\Release\absTest.exe

    - name: Clean up Build Artifacts
      run: rm -rf build_win

  verify-linux-arm:
    name: Linux ARM64 (QEMU)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4

    - name: Build & Test in ARM64 Emulator
      uses: uraimo/run-on-arch-action@v2
      with:
        arch: aarch64
        distro: ubuntu22.04
        
        run: |
          apt-get update
          apt-get install -y build-essential cmake libopencv-dev libtbb-dev libomp-dev
          
          mkdir build_arm
          cd build_arm
          cmake .. -DCMAKE_CXX_STANDARD=23 -DENABLE_CUDA=OFF
          make -j2
          
          echo "Running ARM64 tests..."
          ./absTest
          ./dct2Test