MicroPythonOS/.github/workflows/web-pages.yml at main · scott-macg/MicroPythonOS · GitHub

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name: Build web target and deploy to GitHub Pages

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
  workflow_dispatch: # allow manual workflow starts

# Allow the GITHUB_TOKEN to force-push the built site to the gh-pages branch.
permissions:
  contents: write

# Only one concurrent deployment; don't cancel an in-progress run so a
# half-published site is never left behind.
concurrency:
  group: gh-pages
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-24.04

    steps:
      - name: Checkout repository with submodules
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Install build dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            build-essential \
            libffi-dev \
            pkg-config \
            cmake \
            ninja-build

      - name: Set up Emscripten SDK
        # Puts emcc/em++/emar on PATH so build_mpos.sh skips its in-tree
        # emsdk lookup. Bump the version if the build needs a newer toolchain.
        uses: mymindstorm/setup-emsdk@v14
        with:
          version: 6.0.0

      - name: Extract OS version
        id: version
        run: |
          OS_VERSION=$(grep "release = " internal_filesystem/lib/mpos/build_info.py | cut -d "=" -f 2 | cut -d "#" -f 1 | tr -d " " | tr -d '"')
          echo "OS_VERSION=$OS_VERSION" >> $GITHUB_OUTPUT
          echo "Extracted version: $OS_VERSION"

      - name: Build web (WebAssembly/Emscripten) target
        run: ./scripts/build_mpos.sh web

      - name: Smoke-test the _webterm stdio bridge on the built artifact
        # Boots the built export headless, installs Module.__webterm.onOutput,
        # sends the raw-REPL handshake and asserts the CRLF banner arrives.
        # Catches a dead stdout mirror or wrong line endings before deploy.
        run: |
          npm install --no-save puppeteer
          node tests/web_bridge_smoke.mjs web

      - name: Upload built web export as a regular artifact
        uses: actions/upload-artifact@v4
        with:
          name: MicroPythonOS_web_${{ steps.version.outputs.OS_VERSION }}.zip
          path: web/
          retention-days: 7

      - name: Deploy to gh-pages branch
        # Publish only on push to main; PRs just build for validation.
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./web
          publish_branch: gh-pages
          # Export contains files/dirs starting with "_" (preloaded fs).
          enable_jekyll: false
          force_orphan: true # single squashed commit, no history