better CI strategy #43

	name: ci
	on: push

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- pair:
	otp: 27.x
	elixir: 1.17.x
	- pair:
	otp: 26.x
	elixir: 1.16.x
	- pair:
	otp: 26.x
	elixir: 1.15.x
	- pair:
	otp: 25.x
	elixir: 1.15.x
	- pair:
	otp: 25.x
	elixir: 1.14.x
	- pair:
	otp: 25.x
	elixir: 1.13.x
	- pair:
	otp: 24.x
	elixir: 1.15.x
	- pair:
	otp: 24.x
	elixir: 1.14.x
	- pair:
	otp: 24.x
	elixir: 1.13.x
	- pair:
	otp: 24.x
	elixir: 1.12.x
	- pair:
	otp: 23.x
	elixir: 1.14.x
	- pair:
	otp: 23.x
	elixir: 1.13.x

	steps:
	- uses: actions/checkout@v4
	- uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{matrix.pair.elixir}}
	otp-version: ${{matrix.pair.otp}}
	- uses: actions/cache@v4
	id: mix-cache # id to use in retrieve action
	with:
	path: \|
	_build
	deps
	key: test-cache-v0-${{matrix.pair.elixir}}-${{matrix.pair.otp}}-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
	- if: steps.mix-cache.outputs.cache-hit != 'true'
	run: mix do deps.get, deps.compile
	- run: mix credo
	- run: mix format --check-formatted
	- run: mix test

	dialyzer:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	otp: [27]
	elixir: ["1.17"]
	steps:
	- uses: actions/checkout@v4
	- uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{matrix.elixir}}
	otp-version: ${{matrix.otp}}
	- uses: actions/cache@v4
	id: mix-cache # id to use in retrieve action
	with:
	path: \|
	_build
	deps
	priv/plts
	key: dialyzer-cache-v0-${{matrix.elixir}}-${{matrix.otp}}-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
	- if: steps.mix-cache.outputs.cache-hit != 'true'
	run: mix do deps.get, deps.compile
	- run: mix dialyzer

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