feat: add gh workflow #439

	name: Staging Formatting Checks
	on:
	pull_request:
	branches:
	- main
	env:
	SECRET_KEY_BASE: ${{ secrets.SECRET_KEY_BASE }}
	jobs:
	format:
	name: Formatting Checks
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- name: Setup elixir
	id: beam
	uses: erlef/setup-beam@v1
	with:
	otp-version: 25.x # Define the OTP version [required]
	elixir-version: 1.14.x # Define the elixir version [required]
	- name: Cache Mix
	uses: actions/cache@v3
	with:
	path: deps
	key: ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
	restore-keys: \|
	${{ runner.os }}-mix-

	- name: Install dependencies
	run: mix deps.get
	- name: Set up Postgres
	run: docker-compose -f ./docker-compose.db.yml up -d
	- name: Run main database migrations
	run: mix ecto.migrate --prefix _supavisor --log-migrator-sql
	- name: Run format check
	run: mix format --check-formatted
	- name: Credo checks
	run: mix credo --strict --mute-exit-status
	- name: Retrieve PLT Cache
	uses: actions/cache@v3
	id: plt-cache
	with:
	path: priv/plts
	key: ${{ runner.os }}-${{ steps.beam.outputs.otp-version }}-${{ steps.beam.outputs.elixir-version }}-plts-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
	- name: Create PLTs
	if: steps.plt-cache.outputs.cache-hit != 'true'
	run: \|
	mkdir -p priv/plts
	mix dialyzer.build
	- name: Run dialyzer
	run: mix dialyzer
	- name: Start epmd
	run: epmd -daemon
	- name: Run tests
	run: mix test

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