Add GitHub Actions and Elixir project #6

	name: Elixir CI

	on:
	push:
	branches:
	- main
	pull_request:
	paths:
	- "elixir/**"

	env:
	MIX_ENV: test

	permissions:
	contents: read

	jobs:
	test:
	name: Lint and Test
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: elixir
	strategy:
	matrix:
	otp: ['26.1']
	elixir: ['1.15.7']

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

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

	- name: Cache deps
	uses: actions/cache@v3
	id: cache-deps
	env:
	cache-name: cache-elixir-deps
	with:
	path: deps
	key: ${{ runner.os }}-mix-${{ env.cache-name }}-${{ hashFiles('elixir/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('elixir/mix.lock') }}
	restore-keys: \|
	${{ runner.os }}-mix-${{ env.cache-name }}-
	${{ runner.os }}-mix-

	- name: Install Dependencies
	run: mix deps.get

	- name: Compile
	run: mix compile --warnings-as-errors

	- name: Run Linter
	run: mix lint.ci

	- name: Run Tests
	run: mix coveralls.json

	- name: Upload coverage reports to Codecov
	uses: codecov/codecov-action@v3
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	files: ./elixir/cover/excoveralls.json
	flags: elixir

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