build_nuget.yml

name: Build Nuget

on:
  workflow_dispatch:
    inputs:
      publish:
        description: 'Publish package?'
        required: true
        default: false
        type: boolean

jobs:
  build:
    runs-on: ${{ matrix.os }}
    env:
      NATIVE_BACKENDS: puerts papi-lua papi-quickjs papi-v8 papi-nodejs papi-python
    strategy:
      matrix:
        include:
          - os: ubuntu-latest
            platform: linux
            arch: x64
          - os: windows-2022
            platform: win
            arch: x64
          - os: macos-15
            platform: osx
            arch: auto

    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v6
        with:
          python-version: '3.14'
      
      - name: Install libc++-dev (Linux only)
        if: runner.os == 'Linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y clang libc++-dev libc++abi-dev

      - name: Build all native backends (Linux)
        if: runner.os == 'Linux'
        run: |
          set -ex
          backends="${NATIVE_BACKENDS}"
          repo_root=$(pwd)

          for backend in $backends; do
            echo "Building $backend for ${{ matrix.platform }}-${{ matrix.arch }}"
            cd "$repo_root/unity/native/$backend"
            node ../../cli make --platform ${{ matrix.platform }} --arch ${{ matrix.arch }}
            cd "$repo_root"
          done

      - name: Build all native backends (macOS)
        if: runner.os == 'macOS'
        run: |
          set -ex
          backends="${NATIVE_BACKENDS}"
          repo_root=$(pwd)

          for backend in $backends; do
            echo "Building $backend for ${{ matrix.platform }}"
            cd "$repo_root/unity/native/$backend"
            # if python backend, specify arch to arm64
            if [ "$backend" = "papi-python" ] && [ "${{ matrix.arch }}" = "auto" ]; then
              node ../../cli make --platform ${{ matrix.platform }} --arch arm64
            else
              node ../../cli make --platform ${{ matrix.platform }}
            fi
            cd "$repo_root"
          done

      - name: Build all native backends (Windows)
        if: runner.os == 'Windows'
        run: |
          $ErrorActionPreference = "Stop"
          $backends = $env:NATIVE_BACKENDS.Split(" ")
          $repoRoot = (Get-Location)
          foreach ($backend in $backends) {
            Write-Host "Building $backend for ${{ matrix.platform }}-${{ matrix.arch }}"
            Set-Location "$repoRoot/unity/native/$backend"
            node ../../cli make --platform ${{ matrix.platform }} --arch ${{ matrix.arch }}
            Set-Location $repoRoot
          }
        shell: pwsh
      
        # See: https://github.com/Tencent/puerts/blob/e230b37c313c62185ceb5207c37e79e53e1afada/unity/cli/make.mjs#L173
        # mv(`${CMAKE_BUILD_PATH}/${options.config}/lib${cmakeAddedLibraryName}.dylib`, `${CMAKE_BUILD_PATH}/${options.config}/${cmakeAddedLibraryName}.bundle`);
        # generated builds unity/upms/*/Plugins/macOS/*.bundle
        # Rename macOS bundle format to dylib files to ensure upload-artifact works correctly
      - name: Process macOS native artifacts
        if: runner.os == 'macOS' && matrix.arch == 'auto'
        run: |
          set -ex
          for dir in unity/upms/*/Plugins/macOS; do
            if [ -d "$dir" ]; then
              for file in "$dir"/*.bundle; do
                [ -f "$file" ] && mv -n "$file" "${file%.bundle}.dylib"
                echo "Renamed $file to ${file%.bundle}.dylib"
              done
            fi
          done
      
      # puerts\unity\native\papi-nodejs\.backends\papi-nodejs\lib\Linux\libnode.so.93
      # puerts\unity\native\papi-nodejs\.backends\papi-nodejs\lib\Win64\libnode.dll
      # puerts\unity\native\papi-nodejs\.backends\papi-nodejs\lib\macOS\libnode.93.dylib
      - name: Process libraries dependencies
        run: |
          # Move libnode libraries to build directories
          if ("${{ matrix.platform }}" -eq "linux" -and (Test-Path "unity/native/papi-nodejs/build_linux_x64_papi-nodejs")) {
            Move-Item -Path "unity/native/papi-nodejs/.backends/papi-nodejs/lib/Linux/libnode.so.93" -Destination "unity/native/papi-nodejs/build_linux_x64_papi-nodejs/libnode.so.93" -Force
          }
          if ("${{ matrix.platform }}" -eq "win" -and (Test-Path "unity/native/papi-nodejs/build_win_x64_papi-nodejs/Release")) {
            Move-Item -Path "unity/native/papi-nodejs/.backends/papi-nodejs/lib/Win64/libnode.dll" -Destination "unity/native/papi-nodejs/build_win_x64_papi-nodejs/Release/libnode.dll" -Force
          }
          if ("${{ matrix.platform }}" -eq "osx" -and (Test-Path "unity/upms/nodejs/Plugins/macOS")) {
            Move-Item -Path "unity/native/papi-nodejs/.backends/papi-nodejs/lib/macOS/libnode.93.dylib" -Destination "unity/upms/nodejs/Plugins/macOS/libnode.93.dylib" -Force
          }
          if ("${{ matrix.platform }}" -eq "win") {
            # Remove python's PuertsCore.dll on Windows
            $puertsCorePath = "unity/native/papi-python/build_win_x64_papi-python/Release/PuertsCore.dll"
            if (Test-Path $puertsCorePath) {
              Remove-Item $puertsCorePath -Force
              Write-Host "Removed $puertsCorePath to avoid duplicate PuertsCore.dll."
            }
          }
        shell: pwsh
      
      - name: Upload all native artifacts
        uses: actions/upload-artifact@v4
        with:
          name: natives-${{ matrix.platform }}-${{ matrix.arch }}
          path: |
            unity/upms/core/Plugins/**/*.dylib
            unity/upms/v8/Plugins/**/*.dylib
            unity/upms/nodejs/Plugins/**/*.dylib
            unity/upms/lua/Plugins/**/*.dylib
            unity/upms/python/Plugins/**/*.dylib
            unity/upms/quickjs/Plugins/**/*.dylib
            
            unity/native/papi-lua/build_${{ matrix.platform }}_${{ matrix.arch }}_*/Release/*.dll
            unity/native/papi-lua/build_${{ matrix.platform }}_${{ matrix.arch }}_*/lib*.so

            unity/native/papi-nodejs/build_${{ matrix.platform }}_${{ matrix.arch }}_*/Release/*.dll
            unity/native/papi-nodejs/build_${{ matrix.platform }}_${{ matrix.arch }}_*/lib*.so
            unity/native/papi-nodejs/build_linux_x64_papi-nodejs/libnode.so.93

            unity/native/papi-quickjs/build_${{ matrix.platform }}_${{ matrix.arch }}_*/Release/*.dll
            unity/native/papi-quickjs/build_${{ matrix.platform }}_${{ matrix.arch }}_*/lib*.so

            unity/native/papi-v8/build_${{ matrix.platform }}_${{ matrix.arch }}_*/Release/*.dll
            unity/native/papi-v8/build_${{ matrix.platform }}_${{ matrix.arch }}_*/lib*.so
            
            unity/native/papi-python/build_${{ matrix.platform }}_${{ matrix.arch }}_*/Release/*.dll
            unity/native/papi-python/build_${{ matrix.platform }}_${{ matrix.arch }}_*/lib*.so
            
            unity/native/puerts/build_${{ matrix.platform }}_${{ matrix.arch }}_*/Release/*.dll
            unity/native/puerts/build_${{ matrix.platform }}_${{ matrix.arch }}_*/lib*.so
  pack_nuget:
    name: Pack NuGet
    needs: build
    runs-on: windows-2022

    steps:
      - uses: actions/checkout@v4
      - name: Download all native artifacts
        uses: actions/download-artifact@v4
        with:
          path: unity/nuget/downloaded_natives
      - name: List downloaded artifacts
        run: |
          ls unity/nuget/downloaded_natives
          tree unity/nuget/downloaded_natives /F
        shell: pwsh
      - name: Download Python
        run: |
          $destPath = "unity\nuget\downloaded_natives\natives-win-x64\native\papi-python\build_win_x64_papi-python\Release"
          $downloadedEmbedZip = "$env:TEMP\python-3.14.2-embed-amd64.zip"
          $downloadUrl = "https://www.python.org/ftp/python/3.14.2/python-3.14.2-embed-amd64.zip"
          Invoke-WebRequest -Uri $downloadUrl -OutFile $downloadedEmbedZip
          Expand-Archive -Path $downloadedEmbedZip -DestinationPath $destPath -Force
        shell: pwsh
      
      - name: Download Python Standalone (Linux)
        run: |
          $destPath = "unity/nuget/downloaded_natives/natives-linux-x64/native/papi-python/build_linux_x64_papi-python"
          $tempExtract = "$env:TEMP/python-linux-extract"
          New-Item -ItemType Directory -Force -Path $destPath
          New-Item -ItemType Directory -Force -Path $tempExtract
          
          # Download from python-build-standalone (install_only_stripped for smaller size)
          $pythonUrl = "https://github.com/astral-sh/python-build-standalone/releases/download/20251217/cpython-3.14.2+20251217-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz"
          $downloadedTar = "$env:TEMP/python-linux.tar.gz"
          Invoke-WebRequest -Uri $pythonUrl -OutFile $downloadedTar
          
          # Extract to temp directory
          tar -xzf $downloadedTar -C $tempExtract --strip-components=1
          
          # Copy only necessary runtime files (exclude dev files, tests, etc.)
          # Copy shared libraries
          New-Item -ItemType Directory -Force -Path "$destPath/lib"
          Copy-Item -Path "$tempExtract/lib/libpython3.14.so*" -Destination "$destPath/lib/" -Force
          Copy-Item -Path "$tempExtract/lib/lib*.so*" -Destination "$destPath/lib/" -Force -ErrorAction SilentlyContinue
          
          # Copy Python standard library (exclude tests and unnecessary modules)
          $stdlibPath = "$destPath/lib/python3.14"
          New-Item -ItemType Directory -Force -Path $stdlibPath
          
          # Copy essential stdlib directories
          $essentialDirs = @(
            "collections", "encodings", "importlib", "json", "logging", 
            "email", "urllib", "http", "xml", "html", "ctypes", "sqlite3",
            "asyncio", "concurrent", "multiprocessing", "threading"
          )
          
          foreach ($dir in $essentialDirs) {
            $srcDir = "$tempExtract/lib/python3.14/$dir"
            if (Test-Path $srcDir) {
              Copy-Item -Path $srcDir -Destination $stdlibPath -Recurse -Force
            }
          }
          
          # Copy essential .py files from root
          Copy-Item -Path "$tempExtract/lib/python3.14/*.py" -Destination $stdlibPath -Force -ErrorAction SilentlyContinue
          
          # Copy lib-dynload (compiled extension modules)
          Copy-Item -Path "$tempExtract/lib/python3.14/lib-dynload" -Destination $stdlibPath -Recurse -Force -ErrorAction SilentlyContinue
        shell: pwsh
      
      - name: Download Python Standalone (macOS)
        run: |
          # For macOS, we need to put files in the upms structure first
          # The TransformNativeAssetsTask will handle moving them to the correct location
          $destPath = "unity/nuget/downloaded_natives/natives-osx-auto/upms/python/Plugins/macOS/arm64"
          $tempExtract = "$env:TEMP/python-macos-extract"
          New-Item -ItemType Directory -Force -Path $destPath
          New-Item -ItemType Directory -Force -Path $tempExtract
          
          # Download macOS arm64 version from python-build-standalone (install_only_stripped)
          $pythonUrl = "https://github.com/astral-sh/python-build-standalone/releases/download/20251217/cpython-3.14.2+20251217-aarch64-apple-darwin-install_only_stripped.tar.gz"
          $downloadedTar = "$env:TEMP/python-macos.tar.gz"
          Invoke-WebRequest -Uri $pythonUrl -OutFile $downloadedTar
          
          # Extract to temp directory
          tar -xzf $downloadedTar -C $tempExtract --strip-components=1
          
          # Copy only necessary runtime files
          # Copy shared libraries
          New-Item -ItemType Directory -Force -Path "$destPath/lib"
          Copy-Item -Path "$tempExtract/lib/libpython3.14.dylib" -Destination "$destPath/lib/" -Force
          Copy-Item -Path "$tempExtract/lib/lib*.dylib" -Destination "$destPath/lib/" -Force -ErrorAction SilentlyContinue
          
          # Copy Python standard library (exclude tests and unnecessary modules)
          $stdlibPath = "$destPath/lib/python3.14"
          New-Item -ItemType Directory -Force -Path $stdlibPath
          
          # Copy essential stdlib directories
          $essentialDirs = @(
            "collections", "encodings", "importlib", "json", "logging", 
            "email", "urllib", "http", "xml", "html", "ctypes", "sqlite3",
            "asyncio", "concurrent", "multiprocessing", "threading"
          )
          
          foreach ($dir in $essentialDirs) {
            $srcDir = "$tempExtract/lib/python3.14/$dir"
            if (Test-Path $srcDir) {
              Copy-Item -Path $srcDir -Destination $stdlibPath -Recurse -Force
            }
          }
          
          # Copy essential .py files from root
          Copy-Item -Path "$tempExtract/lib/python3.14/*.py" -Destination $stdlibPath -Force -ErrorAction SilentlyContinue
          
          # Copy lib-dynload (compiled extension modules)
          Copy-Item -Path "$tempExtract/lib/python3.14/lib-dynload" -Destination $stdlibPath -Recurse -Force -ErrorAction SilentlyContinue
        shell: pwsh
      - name: Run NuGet Packaging and Publishing
        if: ${{ github.event.inputs.publish == 'true' }}
        run: |
          cd unity/nuget
          .\build.ps1 --NativeAssetsDirectory "$pwd\downloaded_natives" --ProjectsRoot "$pwd" --Source "https://api.nuget.org/v3/index.json" --ApiKey "${{ secrets.NUGET_API_KEY }}"
        shell: pwsh
      - name: Run NuGet Packaging
        if: ${{ github.event.inputs.publish == 'false' }}
        run: |
          cd unity/nuget
          .\build.ps1 --NativeAssetsDirectory "$pwd\downloaded_natives" --ProjectsRoot "$pwd"
        shell: pwsh
      - name: Upload NuGet Packages
        uses: actions/upload-artifact@v4
        with:
          name: nuget-packages 
          path: |
            unity/nuget/packageOutput/*.nupkg
            unity/nuget/packageOutput/*.snupkg