build.yml

name: Build

on:
  push:
    branches: [main]
    tags: ["v*"]
  pull_request:
  workflow_dispatch:

env:
  WASI_SDK_VERSION: "34.0"
  EMSCRIPTEN_VERSION: "6.0.8"
  WASM3_RUN_ID: "33458892412"
  WASM3_ARTIFACT_ID: "9782484102"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install WASI-SDK
        run: |
          url="https://github.com/WebAssembly/wasi-sdk/releases/download"
          url="$url/wasi-sdk-${WASI_SDK_VERSION%%.*}/wasi-sdk-${WASI_SDK_VERSION}-x86_64-linux.tar.gz"
          curl -sSfL "$url" | tar -xz
          mv "wasi-sdk-${WASI_SDK_VERSION}-x86_64-linux" "$HOME/wasi-sdk"

      - name: Install Emscripten
        run: |
          git clone --depth 1 https://github.com/emscripten-core/emsdk.git "$HOME/emsdk"
          "$HOME/emsdk/emsdk" install "$EMSCRIPTEN_VERSION"
          "$HOME/emsdk/emsdk" activate "$EMSCRIPTEN_VERSION"

      - name: Build
        run: |
          source "$HOME/emsdk/emsdk_env.sh"
          ./build.sh wasi minimal emcc

      - name: Record toolchain versions
        run: |
          source "$HOME/emsdk/emsdk_env.sh"
          {
            echo "# WASI"
            echo "wasi-sdk ${WASI_SDK_VERSION}"
            "$HOME/wasi-sdk/bin/clang" --version | head -1
            echo
            echo "# EMCC"
            emcc --version | head -1
            clang --version | head -1
          } > toolchain.txt
          cat toolchain.txt

      - name: Collect artifacts
        run: |
          mkdir -p dist
          cp coremark.wasm coremark-minimal.wasm \
             coremark-emcc.html coremark-emcc.js coremark-emcc.wasm \
             toolchain.txt dist/

      - uses: actions/upload-artifact@v7
        with:
          name: wasm-coremark
          path: dist/
          if-no-files-found: error

  test-wasm3:
    needs: build
    runs-on: ubuntu-latest
    permissions:
      contents: read
      actions: read
    steps:
      - uses: actions/download-artifact@v7
        with:
          name: wasm-coremark
          path: .

      - uses: actions/download-artifact@v7
        with:
          repository: wasm3/wasm3
          run-id: ${{ env.WASM3_RUN_ID }}
          artifact-ids: ${{ env.WASM3_ARTIFACT_ID }}
          github-token: ${{ secrets.WASM3_ARTIFACT_TOKEN || github.token }}
          path: wasm3-artifact

      - name: Install Wasm3
        run: |
          mkdir -p "$HOME/bin"
          wasm3_bin="$(find wasm3-artifact -type f \( -name 'wasm3' -o -name 'wasm3*.elf' -o -name 'wasm3-linux-*' \) | head -1)"
          if [ -z "$wasm3_bin" ]; then
            echo "No wasm3 binary found in artifact" >&2
            exit 1
          fi
          cp "$wasm3_bin" "$HOME/bin/wasm3"
          chmod +x "$HOME/bin/wasm3"
          echo "$HOME/bin" >> "$GITHUB_PATH"

      - name: Test with Wasm3
        run: |
          wasm3 --version
          wasm3 coremark.wasm
          wasm3 --func run coremark-minimal.wasm

  test-node:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/download-artifact@v7
        with:
          name: wasm-coremark
          path: .

      - uses: actions/setup-node@v4
        with:
          node-version: "22"

      - name: Test with Node.js
        run: |
          node --version
          node coremark-minimal.mjs
          node coremark-emcc.js

  test-python:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/download-artifact@v7
        with:
          name: wasm-coremark
          path: .

      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Test with Python
        run: |
          python3 -m venv .venv
          . .venv/bin/activate
          python -m pip install --upgrade pip
          python -m pip install pywasm3
          python coremark-minimal.py

  test-wasmtime:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@v7
        with:
          name: wasm-coremark
          path: .

      - name: Install Wasmtime
        run: |
          curl -sSfL https://wasmtime.dev/install.sh | bash
          echo "$HOME/.wasmtime/bin" >> "$GITHUB_PATH"

      - name: Test with Wasmtime
        run: |
          wasmtime --version
          wasmtime coremark.wasm

  # The demo pages served from https://wasm3.github.io/wasm-coremark
  pages:
    if: github.ref == 'refs/heads/main'
    needs: [build, test-wasm3, test-node, test-python, test-wasmtime]
    runs-on: ubuntu-latest
    concurrency:
      group: pages
      cancel-in-progress: false
    permissions:
      contents: read
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deploy.outputs.page_url }}
    steps:
      - uses: actions/checkout@v7

      - uses: actions/download-artifact@v7
        with:
          name: wasm-coremark
          path: site

      - name: Add the hand-written page
        run: cp coremark-minimal.* site/

      # Nothing renders README.md on its own here: upload-pages-artifact serves
      # the directory verbatim, with none of the Jekyll pass that branch-based
      # Pages used to run. Without an index.html the site root is a 404.
      - name: Render README.md as the site index
        env:
          GH_TOKEN: ${{ github.token }}
          REPO: ${{ github.repository }}
        run: |
          jq -Rs '{text: ., mode: "gfm"}' README.md \
            | gh api --method POST /markdown --input - > body.html
          # Only the demo pages ship here; send the rest back to the repo.
          sed -i -E "s#(href|src)=\"\./#\1=\"https://github.com/$REPO/blob/main/#g" body.html
          sed -e '/{{CONTENT}}/r body.html' -e '/{{CONTENT}}/d' \
            .github/pages/index.html > site/index.html

      - uses: actions/upload-pages-artifact@v5
        with:
          path: site

      - id: deploy
        uses: actions/deploy-pages@v5

  release:
    if: startsWith(github.ref, 'refs/tags/')
    needs: [build, test-wasm3, test-node, test-python, test-wasmtime]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/download-artifact@v7
        with:
          name: wasm-coremark
          path: dist

      - name: Publish release
        env:
          GH_TOKEN: ${{ github.token }}
          GH_REPO: ${{ github.repository }}
        run: gh release create "$GITHUB_REF_NAME" --generate-notes --verify-tag dist/*