name: Build and deploy Jekyll site to GitHub Pages

on:
  push:
    branches:
      - master
    paths-ignore:
      - '_data/**'
      - '.github/workflows/twitter.yml'

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

    # Use GitHub Actions' cache to shorten build times and decrease load on servers
    - uses: actions/cache@v2
      with:
        path: vendor/bundle
        key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}
        restore-keys: |
          ${{ runner.os }}-gems-

    # Specify the target branch (optional)
    - uses: helaili/jekyll-action@v2
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        target_branch: 'gh-pages'