nodejs.yml

# https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
name: Node.js

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

jobs:
  test:
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"

    strategy:
      matrix:
        node-version:
          - 12.x
          - 14.x

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      # https://github.com/actions/cache/blob/master/examples.md#node---yarn
      - name: Get Yarn cache directory path
        id: yarn-cache-dir-path
        run: echo "::set-output name=dir::$(yarn cache dir)"

      - name: Restore Yarn cache
        uses: actions/cache@v1
        with:
          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-

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

      - name: Install dependencies
        run: yarn install --frozen-lockfile --ignore-engines

      - name: Test and lint
        run: yarn start ci
        env:
          CI: true