ci.yaml

name: CI

on:
  push:
    branches:
      - master
  pull_request:

jobs:
  ci:
    name: Run tests (Elixir ${{matrix.elixir}}, OTP ${{matrix.otp}})
    runs-on: ubuntu-20.04

    strategy:
      matrix:
        include:
          - elixir: "1.15"
            otp: "26"
          - elixir: "1.16"
            otp: "26"
          - elixir: "1.17"
            otp: "27"

            lint: lint

    env:
      MIX_ENV: test
    steps:
      - uses: actions/checkout@v3
      - uses: erlef/setup-beam@v1
        with:
          otp-version: ${{ matrix.otp }}
          elixir-version: ${{ matrix.elixir }}

      - name: Restore deps and _build cache
        uses: actions/cache@v3
        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: Check source code format
        run: mix format --check-formatted
        if: ${{ matrix.lint }}

      - name: Remove compiled application files
        run: mix clean

      - name: Compile dependencies
        run: mix compile
        if: ${{ !matrix.lint }}

      - name: Compile & lint dependencies
        run: mix compile --warnings-as-errors && mix credo
        if: ${{ matrix.lint }}

      - name: Run tests
        run: mix test