test.yml

name: CI

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

jobs:
  check_duplicate_runs:
    name: Check for duplicate runs
    continue-on-error: true
    runs-on: ubuntu-20.04
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - id: skip_check
        uses: fkirc/skip-duplicate-actions@master
        with:
          github_token: ${{ github.token }}
          concurrent_skipping: always
          cancel_others: true
          skip_after_successful_duplicate: true
          paths_ignore: '["**/README.md", "**/CHANGELOG.md", "**/LICENSE"]'
          do_not_skip: '["pull_request"]'

  test:
    name: Elixir ${{matrix.elixir}} / OTP ${{matrix.otp}}
    runs-on: ubuntu-20.04
    needs: check_duplicate_runs
    if: ${{ needs.check_duplicate_runs.outputs.should_skip != 'true' }}

    strategy:
      fail-fast: false
      matrix:
        elixir:
        - '1.12.3'
        - '1.13.4'
        - '1.14.3'
        - '1.15.4'
        otp:
        - '23.3'
        - '24.3'
        - '25.3'
        - '26.0'

        exclude:
          - elixir: '1.12.3'
            otp: '25.3'

          - elixir: '1.12.3'
            otp: '26.0'

          - elixir: '1.13.4'
            otp: '26.0'

          - elixir: '1.14.3'
            otp: '26.0'

          - elixir: '1.15.4'
            otp: '23.3'

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

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

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

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

    - name: Remove compiled application files
      run: mix clean

    - name: Compile dependencies
      run: mix compile
      env:
        MIX_ENV: test

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

    - name: Check compilation warnings
      run: mix do compile --warnings-as-errors, archive.build, archive.install --force
      env:
        MIX_ENV: prod

    - name: Check source code formatting
      if: ${{ matrix.elixir > '1.15.0' }}
      run: mix format --check-formatted

    - name: Get results in short format
      run: mix dialyzer --format short
      env:
        MIX_ENV: prod

    - name: Get results in raw format
      run: mix dialyzer --format raw
      env:
        MIX_ENV: prod

    - name: Get results in dialyzer format
      run: mix dialyzer --format dialyzer
      env:
        MIX_ENV: prod

    - name: Get results in ignore_file format
      run: mix dialyzer --format ignore_file
      env:
        MIX_ENV: prod

    - name: Run output tests
      run: mix test
      env:
        OUTPUT_TESTS: true

    - name: Check examples
      run: mix compile 2> /dev/null  && mix dialyzer --format short --ignore-exit-status
      env:
        MIX_ENV: examples