Auto deploy different static web to GitHub pages with GitHub Action

cd ${YOUR_GIT}
mkdir -p .github/workflows

cat > app.yml << EOF
name: My Web

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

EOF

cat >> app.yml << EOF
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - name: Set up Ruby
      uses: ruby/setup-ruby@v1
      with:
        ruby-version: '3.0'
        bundler-cache: true

    - name: Install Jekyll
      run: |
        gem install jekyll
EOF

cat >> app.yml << EOF
jobs:
  deploy:
    runs-on: ubuntu-latest
    concurrency:
      group: ${{ github.workflow }}-${{ github.ref }}
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
          fetch-depth: 0

      - name: Setup Hugo
        uses: peaceiris/actions-hugo@v2
        with:
          hugo-version: '0.91.2'
EOF

cat >> app.yml << EOF
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2

    - name: Set up Python 3.10
      uses: actions/setup-python@v2
      with:
        python-version: "3.10"

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install mkdocs
        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
EOF

cat >> app.yml << EOF
jobs:
  pages:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Use Node.js 12.x
        uses: actions/setup-node@v1
        with:
          node-version: '12.x'
      - name: Cache NPM dependencies
        uses: actions/cache@v2
        with:
          path: node_modules
          key: ${{ runner.OS }}-npm-cache
          restore-keys: |
            ${{ runner.OS }}-npm-cache
      - name: Install Dependencies
        run: npm install
EOF

cat >> app.yml << EOF
    - name: Build
      run: |
        # build
        # could also minify html here in the script
        cd web && bash deploy.sh
        # e.g. run: hugo --minify
        # e.g. run: npm run build

    - name: Deploy
      uses: peaceiris/actions-gh-pages@v3
      if: ${{ github.ref == 'refs/heads/main' }}
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        publish_dir: ./public
EOF