emscripten.yml

name: Test Pyodide build for PyWavelets

on:
  push:
    branches:
      - master
      - v1.**
  pull_request:
    branches:
      - master
      - v1.**

env:
  FORCE_COLOR: 3

jobs:
  build_wasm_emscripten:
    name: Build PyWavelets for Pyodide
    runs-on: ubuntu-latest
    # Uncomment the following line to test changes on a fork
    # if: github.repository == 'PyWavelets/pywt'
    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up Python 3.11
        id: setup-python
        uses: actions/setup-python@v2
        with:
          python-version: '3.11.2'

      - name: Install prerequisites
        run: |
          python -m pip install pyodide-build "pydantic<2"
          echo EMSCRIPTEN_VERSION=$(pyodide config get emscripten_version) >> $GITHUB_ENV

      - name: Set up Emscripten toolchain
        uses: mymindstorm/setup-emscripten@v14
        with:
          version: ${{ env.EMSCRIPTEN_VERSION }}
          actions-cache-folder: emsdk-cache

      - name: Set up Node.js
        uses: actions/setup-node@v4.0.2
        with:
          node-version: '18'

      - name: Build PyWavelets
        run: |
          pyodide build

      - name: Install and test wheel
        run: |
          pyodide venv .venv-pyodide
          source .venv-pyodide/bin/activate
          pip install dist/*.whl
          pushd demo
          pip install matplotlib pytest
          python -c "import pywt; print(pywt.__version__)"
          pytest --pyargs pywt