name: Node CI

on: [push]

jobs:
  ci:
    name: Test on node ${{ matrix.node_version }} and ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        node_version: [8, 10, 12]
        os: [ubuntu-latest, windows-latest, macOS-latest]

    steps:
    - uses: actions/checkout@v1
    - name: Use Node.js ${{ matrix.node_version }}
      uses: actions/setup-node@v1
      with:
        version: ${{ matrix.node_version }}

    - name: Use Yarn 1.17.2
      run: |
        npm install -g yarn@1.17.2    
    - name: yarn build
      run: |
        yarn install
        yarn lint
        yarn build