0-code-quality.yml

name: Code quality

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]

env:
  MIX_ENV: dev

permissions:
  contents: read

jobs:
  quality:
    name: Code quality ${{matrix.otp}} / ${{matrix.elixir}}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        otp: ['25.1.2']
        elixir: ['1.14.2']
    steps:
    - name: Set up Elixir
      uses: erlef/setup-beam@v1
      with:
        otp-version: ${{matrix.otp}}
        elixir-version: ${{matrix.elixir}}
    - name: Checkout code
      uses: actions/checkout@v3
    - name: Cache deps
      id: cache-deps
      uses: actions/cache@v3
      env:
        cache-name: cache-elixir-deps
      with:
        path: deps
        key: ${{ runner.os }}-mix-${{ env.cache-name }}-${{ hashFiles('**/mix.lock') }}
        restore-keys: |
          ${{ runner.os }}-mix-${{ env.cache-name }}-
    - name: Cache compiled build
      id: cache-build
      uses: actions/cache@v3
      env:
        cache-name: cache-compiled-build
      with:
        path: _build
        key: ${{ runner.os }}-mix-${{ env.cache-name }}-${{ hashFiles('**/mix.lock') }}
        restore-keys: |
          ${{ runner.os }}-mix-${{ env.cache-name }}-
          ${{ runner.os }}-mix-
    - name: Install dependencies
      run: mix deps.get
    - name: Compiles without warnings
      run: mix compile --warnings-as-errors
    - name: Check Formatting
      run: mix format --check-formatted
    - name: Check Credo
      run: mix credo --strict
    - name: Check Dialyzer
      run: mix dialyzer