ci.yml

name: CI

on:
  push:
    branches:
      - master
  pull_request:

jobs:
  test:
    runs-on: ubuntu-20.04

    services:
      pg:
        image: postgres:${{ matrix.pg.version }}
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: postgres
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 10
        ports:
          - 5432:5432
        volumes:
          - /var/run/postgresql:/var/run/postgresql

    strategy:
      fail-fast: false
      matrix:
        pg:
          - version: 9.4
            skip_wal: skip_wal
          - version: 9.5
            skip_wal: skip_wal
          - version: 9.6
            skip_wal: skip_wal
          - version: 10
          - version: 11
          - version: 12
          - version: 13
          - version: 14

        pair:
          - elixir: 1.11.4
            otp: 23.3.3
        include:
          - pg:
              version: 14
            pair:
              elixir: 1.17.1
              otp: 25.3
            lint: lint
    env:
      MIX_ENV: test
    steps:
      - name: "Set PG settings"
        run: |
          docker exec ${{ job.services.pg.id }} sh -c 'echo "wal_level=logical" >> /var/lib/postgresql/data/postgresql.conf'
          docker restart ${{ job.services.pg.id }}
        if: ${{ matrix.pg.skip_wal }} != 'skip_wal'

      - uses: actions/checkout@v2

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

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

      - run: mix deps.get

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

      - run: mix deps.unlock --check-unused
        if: ${{ matrix.lint }}

      - run: mix deps.compile

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

      - run: mix test
        env:
          PGUSER: postgres
          PGPASSWORD: postgres
          PG_SOCKET_DIR: /var/run/postgresql