javascript.yaml

name: JavaScript Package CI/CD

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Version to publish (e.g., 1.11.1). Leave empty to skip publishing.'
        required: false
        type: string
  push:
    branches:
      - main
    tags:
      - 'v*'
    paths:
      - 'wasm/**'
      - 'tamp/_c_src/**'
      - 'website/**'
      - '.github/workflows/javascript.yaml'
  pull_request:
    branches:
      - main
    paths:
      - 'wasm/**'
      - 'tamp/_c_src/**'
      - 'website/**'
      - '.github/workflows/javascript.yaml'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: 'Build & Test'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'npm'
          cache-dependency-path: './wasm/package-lock.json'

      - name: Setup Emscripten SDK
        uses: mymindstorm/setup-emsdk@v14
        with:
          version: 4.0.12
          actions-cache-folder: 'emsdk-cache'

      - name: Install dependencies
        run: |
          cd wasm
          npm ci

      - name: Build WebAssembly and JavaScript
        run: |
          cd wasm
          npm run build

      - name: Run linting
        run: |
          cd wasm
          npm run lint

      - name: Run type checking
        run: |
          cd wasm
          npm run type-check

      - name: Run tests
        run: |
          cd wasm
          npm test

      - name: Cache enwik8 dataset
        uses: actions/cache@v4
        with:
          path: datasets/enwik8.zip
          key: enwik8-dataset-v2

      - name: Download enwik8 dataset
        run: make download-enwik8

      - name: Run enwik8 compression test
        run: |
          mkdir -p build
          cd wasm
          npm run test:enwik8

      - name: Verify compressed file hash
        run: |
          cd build
          HASH=$(sha256sum enwik8-js.tamp | cut -d' ' -f1)
          echo "Compression hash: $HASH"
          if [ "$HASH" != "d9d804c91b4dc5e81856db074760037040421cfa84e1ea211e16dde8c295ce6d" ]; then
            echo "❌ Hash mismatch!"
            echo "Expected: d9d804c91b4dc5e81856db074760037040421cfa84e1ea211e16dde8c295ce6d"
            echo "Got:      $HASH"
            exit 1
          fi
          echo "✅ Compression hash verified"

      # Build minified version and upload as artifact for deploy/publish jobs
      - name: Build minified version
        run: |
          cd wasm
          npm run build:minified

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: wasm-build
          path: |
            wasm/dist/
            wasm/build/
          retention-days: 1

  deploy-pages:
    name: 'Deploy to GitHub Pages'
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v')

    permissions:
      pages: write
      id-token: write

    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Download build artifacts
        uses: actions/download-artifact@v4
        with:
          name: wasm-build
          path: wasm/

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'npm'
          cache-dependency-path: './wasm/package-lock.json'

      - name: Install dependencies (for webpack)
        run: |
          cd wasm
          npm ci

      - name: Prepare Pages deployment with webpack
        run: make website-build

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: './build/pages-deploy'

      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4

  publish:
    name: 'Publish to npm'
    needs: build
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/v') || inputs.version != ''

    permissions:
      contents: read
      id-token: write

    environment:
      name: npm-publish
      url: https://www.npmjs.com/package/@brianpugh/tamp

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Download build artifacts
        uses: actions/download-artifact@v4
        with:
          name: wasm-build
          path: wasm/

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '24'
          cache: 'npm'
          cache-dependency-path: './wasm/package-lock.json'

      - name: Set package version
        run: |
          cd wasm
          if [ -n "${{ inputs.version }}" ]; then
            npm version "${{ inputs.version }}" --no-git-tag-version
          else
            npm version from-git --no-git-tag-version
          fi

      - name: Publish to npm
        run: |
          cd wasm
          npm publish --provenance --access public --ignore-scripts