wasm_build.yml

name: wasm_build

on:
  push:
    branches: [master]
  pull_request:
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

defaults:
  run:
    shell: bash

jobs:

  ###########################################################
  pre_job:
  ###########################################################
    # continue-on-error: true # Uncomment once integration is finished
    runs-on: ubuntu-latest
    # Map a step output to a job output
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - id: skip_check
        uses: fkirc/skip-duplicate-actions@v5
        with:
          # All of these options are optional, so you can remove them if you are happy with the defaults
          concurrent_skipping: 'same_content'
          do_not_skip: '["pull_request", "workflow_dispatch"]'

  ###########################################################
  wasm_build:
  ###########################################################
    needs: pre_job
    if: needs.pre_job.outputs.should_skip != 'true'
    runs-on: ${{ matrix.runner }}

    strategy:
      fail-fast: false
      matrix:
        target: [linux, darwin, windows]
        architecture: [ 64 ]
        cmake_preset: [ Release ]

        include:
          - target: linux
            runner: ubuntu-latest

          - target: darwin
            runner: macos-latest

          - target: windows
            runner: windows-latest

          - target: windows
            architecture: 64
            architecture_string: x64

    steps:
    - name: "SCM Checkout"
      uses: actions/checkout@v4

    - name: "Exclude workspace from Windows Defender"
      if: runner.os == 'Windows'
      shell: pwsh
      continue-on-error: true
      # Defender real-time scan of freshly-written .obj/.exe/.dll slows the build
      # and can momentarily lock a just-linked exe (the "Access is denied" deploy
      # race). Exclude the workspace + toolchain writers and try to disable RTP;
      # the status dump records whether the runner image actually honored it
      # (managed Defender / Tamper Protection may silently no-op).
      # continue-on-error: a managed-Defender runner must not fail the job.
      run: |
        Add-MpPreference -ExclusionPath "${{ github.workspace }}" -ErrorAction SilentlyContinue
        foreach ($p in 'daslang.exe','daslang_static.exe','test_aot.exe','cl.exe','link.exe','lld-link.exe','mt.exe','vctip.exe','mspdbsrv.exe','vcpkg.exe') {
          Add-MpPreference -ExclusionProcess $p -ErrorAction SilentlyContinue
        }
        Set-MpPreference -DisableRealtimeMonitoring $true -ErrorAction SilentlyContinue
        Get-MpComputerStatus | Select-Object RealTimeProtectionEnabled, IsTamperProtected
        Get-MpPreference | Select-Object -ExpandProperty ExclusionPath

    - uses: lukka/get-cmake@latest

    - name: Setup Python 3.10
      uses: actions/setup-python@v5
      with:
        python-version: '3.10'
    - name: "Install: Required Dev Packages"
      run: |
        set -eux

        git clone https://github.com/emscripten-core/emsdk.git

        case "${{ matrix.target }}${{ matrix.architecture }}" in
          linux64)
            echo "MARCH=64" >> $GITHUB_ENV
            sudo apt-get update -y
            sudo apt-get install --no-install-recommends -y \
              libatomic-ops-dev \
              libglu1-mesa-dev \
              freeglut3-dev \
              mesa-common-dev \
              libglfw3-dev \
              libfreetype6-dev \
              libudev-dev \
              libopenal-dev \
              libvorbis-dev \
              libflac-dev \
              libclang-dev \
              libx11-dev \
              libxrandr-dev \
              libxcursor-dev \
              libxinerama-dev \
              libxi-dev

            ./emsdk/emsdk install latest
            ./emsdk/emsdk activate latest
            source "/home/runner/work/daScript/daScript/emsdk/emsdk_env.sh"
            ;;
          windows*)
            ./emsdk/emsdk install latest
            ./emsdk/emsdk activate latest
            ./emsdk/emsdk_env.bat
            ;;
          *)
            # macOS stock bison is 2.3; install Homebrew bison 3.x and shadow
            # the system one on PATH so any FIND_FLEX_AND_BISON pickup is sane.
            if [[ "$(uname -m)" == "arm64" ]]; then
              brew install bison
              echo 'export PATH="/opt/homebrew/opt/bison/bin:$PATH"' >> ~/.bash_profile
              export PATH="/opt/homebrew/opt/bison/bin:$PATH"
            else
              brew install bison
              echo 'export PATH="/usr/local/opt/bison/bin:$PATH"' >> ~/.bash_profile
              export PATH="/usr/local/opt/bison/bin:$PATH"
            fi
            ./emsdk/emsdk install latest
            ./emsdk/emsdk activate latest
            source "/Users/runner/work/daScript/daScript/emsdk/emsdk_env.sh"
            ;;
        esac
    - name: "Build: daslang web"
      run: |
        set -eux
        cd web
        rm -r -f cmake_temp
        mkdir cmake_temp
        cd cmake_temp
        cmake -DCMAKE_BUILD_TYPE:STRING=${{ matrix.cmake_preset }} -DDAS_FLEX_BISON_DISABLED=ON -G Ninja -DCMAKE_TOOLCHAIN_FILE=../emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake ../
        ninja

    - name: "Test: hello world via Node.js"
      run: |
        set -eux
        # Use emsdk-bundled Node (deterministic version that supports the
        # --experimental-wasm-exnref flag). System Node may be older or use
        # a different spelling for the EH proposal flag.
        source ./emsdk/emsdk_env.sh
        cd web
        # Modern wasm EH proposal (try_table / exnref) is gated in Node 22.
        # Default-on in Node 24+. Force-enable for forward compat with current LTS.
        "$EMSDK_NODE" --experimental-wasm-exnref test/dastest_wasm.js ../ ./output

  ###########################################################
  wasm_cross:
  ###########################################################
    # Cross-compile utility mains to wasm32 via dasLLVM and execute under
    # wasmtime. Smoke-tests the runtime-linked cross-compile pipeline
    # end-to-end (see modules/dasLLVM/README.md "Cross-compilation").
    needs: pre_job
    if: needs.pre_job.outputs.should_skip != 'true'
    runs-on: ubuntu-latest
    steps:
    - name: "SCM Checkout"
      uses: actions/checkout@v4

    - uses: lukka/get-cmake@latest

    - name: Setup Emscripten
      uses: emscripten-core/setup-emsdk@v11
      with:
        # 5.0.7 ships clang commit 7b58716d that crashes in
        # TextDiagnostic::emitSnippetAndCaret on utils/dasFormatter/ds_parser.cpp
        # (std::length_error during diagnostic snippet rendering). 5.0.3 works.
        version: '5.0.3'

    - name: Setup Wasmtime
      uses: bytecodealliance/actions/wasmtime/setup@v1
      with:
        version: "44.0.1"

    - name: "Install: graphics dev libs"
      run: |
        set -eux
        sudo apt-get update -y
        # OpenGL + GLFW headers needed by dasGlfw (enabled by default in host
        # cmake). Same set as extended_checks.yml.
        sudo apt-get install --no-install-recommends -y \
          mesa-common-dev libglu1-mesa-dev libgl1-mesa-dev libglfw3-dev \
          libx11-dev libxrandr-dev libxcursor-dev libxinerama-dev libxi-dev

    - name: "Build + run cross-compiled wasm examples"
      run: |
        set -eux
        cd web
        mkdir -p cmake_temp && cd cmake_temp
        emcmake cmake -DCMAKE_BUILD_TYPE=Release -DDAS_FLEX_BISON_DISABLED=ON -G Ninja ..
        ninja run_wasm_examples