elixir.yml

name: Build and Check Elixir

on:
  pull_request:
    branches: ["main"]

permissions:
  contents: read

env:
  MIX_ENV: dev
  OTP: "26.2.2"
  ELIXIR: "1.16.1"

jobs:
  build:
    name: Build and test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Elixir
        uses: erlef/setup-beam@v1.17.5
        with:
          elixir-version: ${{ env.ELIXIR }}
          otp-version: ${{ env.OTP }}

      - name: Restore dependencies cache
        uses: actions/cache@v4
        id: mix-cache
        with:
          path: deps
          key: ${{ runner.os }}-${{ env.OTP }}-${{ env.ELIXIR }}-mix-${{ hashFiles('**/mix.lock') }}
          restore-keys: ${{ runner.os }}-${{ env.OTP }}-${{ env.ELIXIR }}-mix-

      - name: Install dependencies
        if: steps.mix-cache.outputs.cache-hit != 'true'
        run: |
          mix deps.get --only dev
          mix deps.get --only test

      - name: Restore build cache
        uses: actions/cache@v4
        id: build-cache
        with:
          path: _build
          key: ${{ runner.os }}-${{ env.OTP }}-${{ env.ELIXIR }}-build-${{ hashFiles('**/mix.lock') }}
          restore-keys: ${{ runner.os }}-${{ env.OTP }}-${{ env.ELIXIR }}-build-

      - name: Build dependencies
        if: steps.build-cache.outputs.cache-hit != 'true'
        run: |
          MIX_ENV=dev mix do deps.compile, compile
          MIX_ENV=test mix do deps.compile, compile

      - name: Check format
        run: mix format --check-formatted

      - name: Run Credo
        run: mix credo --strict

      - name: Run tests
        run: MIX_ENV=test mix test

      - name: Retrieve PLT Cache
        uses: actions/cache@v4
        id: plt-cache
        with:
          path: priv/plts
          key: ${{ runner.os }}-${{ env.OTP }}-${{ env.ELIXIR }}-plts-${{ hashFiles('**/mix.lock') }}
          restore-keys: ${{ runner.os }}-${{ env.OTP }}-${{ env.ELIXIR }}-plts-

      - name: Create PLTs
        if: steps.plt-cache.outputs.cache-hit != 'true'
        run: |
          mkdir -p priv/plts
          mix dialyzer --plt

      - name: Run dialyzer
        run: mix dialyzer --no-check --halt-exit-status

      - name: SAST with sobelow
        run: mix sobelow --config .sobelow-conf