chore: Set up github checks #1

	# https://github.com/felt/ultimate-elixir-ci/blob/main/.github/workflows/elixir-quality-checks.yml
	# Used under MIT License: https://github.com/felt/ultimate-elixir-ci/blob/main/LICENSE

	name: Elixir Quality Checks

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- "*"

	jobs:
	quality_checks:
	name: Formatting, Credo, and Unused Deps
	runs-on: ubuntu-latest
	strategy:
	matrix:
	elixir: ["1.17.2"]
	otp: ["27.0.1"]

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Setup Elixir Project
	uses: ./.github/actions/elixir-setup
	with:
	elixir-version: ${{ matrix.elixir }}
	otp-version: ${{ matrix.otp }}
	build-app: false

	- name: Check for unused deps
	run: mix deps.unlock --check-unused
	- name: Check code formatting
	run: mix format --check-formatted
	# Check formatting even if there were unused deps so that
	# we give devs as much feedback as possible & save some time.
	if: always()
	- name: Run Credo
	run: mix credo suggest --min-priority=normal
	# Run Credo even if formatting or the unused deps check failed
	if: always()

	# Not sure how to fix these compile-time dependencies or what the
	# value is.
	# - name: Check for compile-time dependencies
	# run: mix xref graph --label compile-connected --fail-above 0
	# if: always()
	- name: Check for security vulnerabilities in Phoenix project
	run: mix sobelow
	if: always()

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