[GH-917] - Deathmatch mode #3272

	name: Elixir CI

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

	env:
	MIX_ENV: test

	permissions:
	contents: read

	jobs:
	build:
	name: Build and test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	elixir: [1.16.0]
	otp: [26.0.2]
	services:
	db:
	image: postgres:16-alpine
	ports: ["5432:5432"]
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: arena_test
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	steps:
	- uses: actions/checkout@v3
	- name: Set up Elixir
	uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{ matrix.elixir }} # Define the elixir version [required]
	otp-version: ${{ matrix.otp }} # Define the OTP version [required]
	env:
	ImageOS: ubuntu20
	- name: Restore dependencies cache
	uses: actions/cache@v3
	with:
	path: deps
	key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
	restore-keys: ${{ runner.os }}-mix-
	- name: Elixir set up
	run: \|
	mix local.hex --force
	mix local.rebar --force
	mix deps.get
	- name: Check Elixir Formatting
	run: mix format --check-formatted
	- name: Credo check
	run: mix credo
	- name: Compiles without warnings
	run: mix compile --all-warnings --warnings-as-errors
	- name: Run tests
	run: mix test
	- name: (Arena) Check Rust Formatting
	working-directory: apps/arena/native/physics/
	run: cargo fmt --all -- --check
	- name: (Arena) Clippy Rust checks
	working-directory: apps/arena/native/physics/
	run: cargo clippy --all-targets -- -D warnings

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