elixir.yml

name: Elixir CI

on:
  workflow_call:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
    name: Build and test

    env:
      MIX_ENV: test
    strategy:
      fail-fast: false
      matrix:
        include:
          - pair:
              elixir: '1.11'
              otp: '21.3'
          - pair:
              elixir: '1.15'
              otp: '26.0'
            lint: lint

    runs-on: ubuntu-20.04

    steps:
      - uses: actions/checkout@v2

      - uses: erlef/setup-elixir@v1
        with:
          otp-version: ${{matrix.pair.otp}}
          elixir-version: ${{matrix.pair.elixir}}

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

      - name: Run mix deps.get
        run: mix deps.ci

      - name: Run mix format
        run: mix format --check-formatted
        if: ${{ matrix.lint }}

      - name: Run mix deps.compile
        run: mix deps.compile

      - name: Run mix compile
        run: mix compile --warnings-as-errors
        if: ${{ matrix.lint }}

      - name: Run tests
        run: mix test.ci