Deploy to gh-pages github action example.yaml

# 1. Create a new empty orphan branch called gh-pages:
# $ git checkout --orphan gh-pages && git reset --hard && git commit -m "create gh-pages" --allow-empty && git push origin gh-pages && git checkout master

# 2. Enable gh pages for the gh-pages /docs directory and you should be good
# 3. Alter the gh-pages step to fit your framework of choice

name: Push to Github pages

on:
  push:
    branches:
      - master
jobs:
  gh-pages:
    runs-on: ubuntu-latest
    steps:
      # checkout master
      - uses: actions/checkout@v2
      # install node
      - name: Use Node.js 12.x
        uses: actions/setup-node@v1
        with:
          node-version: 12.x
      # install deps and build
      - run: npm ci
      - run: npm run build
        env:
          GH_PAGES: 'true' # when deploying a SPA you need to change the router's base
      - name: remove docs, if it exists
        run: rm docs -rf
      # move dist to docs, so github pages works
      - run: mv dist docs
      # checkout gh-pages branch
      - uses: actions/checkout@v2
        with:
          ref: 'refs/heads/gh-pages'
          clean: false
      # set FILES_CHANGED, so following steps are ignored when no change occured
      - name: set FILES_CHANGED
        run: echo "::set-env name=FILES_CHANGED::$(git status --short docs | wc -l)"
      - run: echo $FILES_CHANGED
        env:
          FILES_CHANGED: ${{ env.FILES_CHANGED }}
      # commit dist to gh-pages
      - name: Commit files
        if: env.FILES_CHANGED != 0
        run: |
          git config --local user.email "[email protected]"
          git config --local user.name "Anon"
          git add docs
          git commit -m "$GITHUB_SHA"
      # push chages to gh-pages branch
      - name: Push changes
        if: env.FILES_CHANGED != 0
        uses: ad-m/github-push-action@master
        with:
          branch: 'gh-pages'
          github_token: ${{ secrets.GITHUB_TOKEN }}