elixir.yml

name: CI

on:
  push:
  pull_request:
    branches:
      - master

jobs:
  mix_test:
    name: mix test (OTP ${{matrix.otp}} | Elixir ${{matrix.elixir}})

    strategy:
      matrix:
        include:
          - elixir: 1.7.4
            otp: 21.3.8.16

          - elixir: 1.8.2
            otp: 21.3.8.16

          - elixir: 1.9.4
            otp: 21.3.8.16

          - elixir: 1.10.4
            otp: 21.3.8.16

          - elixir: 1.11.4
            otp: 21.3.8.16

          - elixir: 1.11.4
            otp: 23.3
            lint: lint

          - elixir: 1.12.0-rc.1
            otp: 23.3

    runs-on: ubuntu-latest

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

    - name: Set up Elixir
      uses: erlef/setup-elixir@v1
      with:
        elixir-version: ${{ matrix.elixir }}
        otp-version: ${{ matrix.otp }}

    - name: Restore deps and _build cache
      uses: actions/cache@v2
      with:
        path: |
          deps
          _build
        key: deps-${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('**/mix.lock') }}
        restore-keys: |
          deps-${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}

    - name: Install dependencies
      run: mix deps.get --only test

    - name: Remove compiled application files
      run: mix clean

    - name: Compile & lint dependencies
      run: mix compile --warnings-as-errors
      env:
        MIX_ENV: test

    - name: Run tests
      run: mix test