deploy.yml

name: Periodic

on:
  push:
    branches:
      - '*'
      - '!gh-pages'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Use Node.js
        uses: actions/setup-node@v1
      - run: npm install
      - run: npm run build

      - name: Save artifacts
        uses: actions/upload-artifact@v1
        with:
          name: site
          path: dist

  deploy:
    runs-on: ubuntu-latest
    needs: build
    if: github.ref == 'refs/heads/master'

    steps:
      - uses: actions/checkout@v2

      - name: Download artifacts
        uses: actions/download-artifact@v1
        with:
          name: site
          path: dist

      - name: Deploy to gh-pages
        run: |
          git config --global user.name "github-actions"
          git config --global user.email "actions@github.com"

          git remote set-url origin "https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
          git fetch origin gh-pages || true

          git checkout gh-pages || git checkout -b gh-pages
          find -maxdepth 1 ! -name .git ! -name dist ! -name . -exec rm -rf {} \;
          mv dist/* .
          rm -r dist/

          git add -A
          git commit --allow-empty -m "${GITHUB_SHA}: run #$GITHUB_RUN_ID"
          git push