name: Verify changes

on: [push, pull_request]

jobs:
  lint:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Setup Node.js
        uses: actions/setup-node@v1
        with:
          node-version: 14.x
      - run: npm install
      - run: npm run test-lint

  tests:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        node-version: [10.x, 12.x, 14.x, 15.x]

    steps:
      - uses: actions/checkout@v2
        with:
          submodules: recursive
      - name: Setup Node.js
        uses: actions/setup-node@v1
        with:
          node-version: ${{ matrix.node-version }}
      - name: npm install and test
        run: |
          npm install
          npm run test-unit

  tests-on-legacy:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        node-version: [0.10.x, 0.12.x, 4.x, 6.x, 8.x]

    steps:
      - uses: actions/checkout@v2
        with:
          submodules: recursive
      - name: Setup Node.js
        uses: actions/setup-node@v1
        with:
          node-version: ${{ matrix.node-version }}
      - name: npm install and test
        run: |
          npm install mocha@3 chai@3
          npm run test-unit

  build-output-sync:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v1
      - name: Setup Node.js
        uses: actions/setup-node@v1
        with:
          node-version: 12.x
      - name: Install, build and check git diff
        run: |
          npm ci
          npm run build
          git diff --quiet HEAD --