tests.yml

name: Tests

on: [pull_request, push]

jobs:
  build:
    name: CI
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        resolver: [nightly, lts-15, lts-14, lts-12, lts-11, lts-9]

    steps:
      - name: Clone project
        uses: actions/checkout@v2

      - name: Cache dependencies
        uses: actions/cache@v1
        with:
          path: ~/.stack
          key: ${{ runner.os }}-${{ matrix.resolver }}-${{ hashFiles('stack.yaml') }}
          restore-keys: |
            ${{ runner.os }}-${{ matrix.resolver }}-

      - name: Build and run tests
        shell: bash
        run: |
            set -ex
            stack upgrade || curl -sSL https://get.haskellstack.org/ | sh -s - -f
            stack test --fast --no-terminal --resolver=${{ matrix.resolver }}