.github/workflows/build_test_wasm.yml

# Copyright 2025 Google Inc. All Rights Reserved.
#
# Distributed under MIT license.
# See file LICENSE for detail or copy at https://opensource.org/licenses/MIT

# Workflow for building and running tests with WASM

name: Build/Test WASM

on:
  push:
    branches:
      - master
  pull_request:
    types: [opened, reopened, labeled, unlabeled, synchronize]

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

jobs:
  build_test_wasm:
    name: Build and test with WASM
    runs-on: ubuntu-latest
    env:
      CCACHE_DIR: ${{ github.workspace }}/.ccache
      BUILD_TARGET: wasm32
      EM_VERSION: 3.1.51
      # As of 28.08.2025 ubuntu-latest is 24.04; it is shipped with node 22.18
      NODE_VERSION: 22

    steps:

    - name: Harden Runner
      uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
      with:
        egress-policy: audit

    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      with:
        submodules: true
        fetch-depth: 1

    - name: Install node
      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
      with:
        node-version: ${{env.NODE_VERSION}}

    - name: Get non-EMSDK node path
      run: which node >> $HOME/.base_node_path

    - name: Install emsdk
      uses: mymindstorm/setup-emsdk@4528d102f7230f0e7b276855c01ea1159be0e984 # v16
      with:
        version: ${{env.EM_VERSION}}
        no-cache: true

    - name: Set EMSDK node version
      run: |
        echo "NODE_JS='$(cat $HOME/.base_node_path)'" >> $EMSDK/.emscripten
        emsdk construct_env

    - name: Build
      run: |
        LDFLAGS=" -s ALLOW_MEMORY_GROWTH=1 -s NODERAWFS=1 " emcmake cmake -B out .
        cmake --build out
        cd out; ctest --output-on-failure; cd ..