GitHub workflow specification for publishing Godot Engine HTML5 projects to GitHub Pages with reduced download size

godot-ci.yml

# Workflow to publish Godot HTML5 games to GitHub Pages
#
# Make sure your project is configured for Web export
# to the path `build/web`.

name: 'Publish to GitHub Pages'

env:
  GODOT_VERSION: 3.2.2 # Remember to manually set image to this version below.

on:
  push:
    branches:
      - master

jobs:
  deploy:
    runs-on: ubuntu-18.04

    container:
      image: barichello/godot-ci:3.2.2

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Move HTML5 templates into position
        run: |
          mkdir -v -p ~/.local/share/godot/templates
          mv /root/.local/share/godot/templates/${GODOT_VERSION}.stable ~/.local/share/godot/templates/${GODOT_VERSION}.stable
      - name: Create staging directory
        run: mkdir -v -p build/web

      - name: Build
        run: godot -v --export "HTML5" build/web/index.html

      - name: Compress project
        run: |
          cd build/web
          wget https://raw.githubusercontent.com/nodeca/pako/master/dist/pako_inflate.min.js
          gzip -f index.wasm
          gzip -f index.pck
          FIND="<script type='text/javascript' src='index.js'></script>"
          REPLACE="<script type=\"text/javascript\" src=\"pako_inflate.min.js\"></script>$FIND"
          sed -i -e "s@$FIND@$REPLACE@" index.html
          FIND="function loadXHR(resolve, reject, file, tracker) {"
          REPLACE=$FIND" if (file.substr(-5) === '.wasm' || file.substr(-4) === '.pck') { file += '.gz'; var resolve_orig = resolve; resolve = function(xhr) { return resolve_orig(xhr.responseURL.substr(-3) === '.gz' ? { response: pako.inflate(xhr.response), responseType: xhr.responseType, responseURL: xhr.responseURL, status: xhr.status, statusText: xhr.statusText } : xhr); }; }"
          sed -i -e "s@$FIND@$REPLACE@" index.js
      - name: Deploy
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./build/web
          force_orphan: true
          user_name: 'github-ci[bot]'
          user_email: 'github-actions[bot]@users.noreply.github.com'
          commit_message: 'Publish to gh-pages'