CI.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    - cron: "0 0 1 */1 *"

jobs:
  test:
    name: Elixir ${{ matrix.pair.elixir }} / OTP ${{ matrix.pair.otp }} / NATS ${{ matrix.pair.nats }}
    runs-on: ubuntu-latest

    strategy:
      matrix:
        pair:
          - otp: "24.3.4"
            elixir: "1.12"
            nats: "2.10.0"

          - otp: "26.2.4"
            elixir: "1.16.2"
            nats: "2.10.14"

          - otp: "24.3.4"
            elixir: "main"
            nats: "latest"

    env:
      MIX_ENV: test

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

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

      - name: Start NATS Jetstream
        run: docker run --rm -d --network host nats:${{ matrix.pair.nats }} -js

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

      - name: Install package dependencies
        run: mix deps.get

      - name: Check for valid formatting
        run: mix format --check-formatted

      - name: Run unit tests
        run: mix test --color