auto generate demo (#35) #27

	name: lint, format, test

	on:
	push:
	branches:
	- main
	pull_request:
	# option to run workflow manually
	# see: https://docs.github.com/en/actions/managing-workflow-runs-and-deployments/managing-workflow-runs/manually-running-a-workflow
	workflow_dispatch:

	jobs:
	lint-format-test:
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v4

	- name: ❄️ Install Nix
	uses: cachix/install-nix-action@v30
	with:
	nix_path: nixpkgs=channel:nixos-unstable

	- name: "Check format: *.cabal"
	run: nix develop --command bash -c 'cabal-fmt --check --Werror tick-tock-tui.cabal'

	- name: "Check format: *.hs"
	run: nix develop --command bash -c 'fourmolu --mode check app src test'

	- name: "lint: *.hs"
	run: nix develop --command bash -c 'hlint app src test'

	- name: Update Cabal's package index
	run: nix develop --command bash -c 'cabal update'

	- name: test
	run: nix develop --command bash -c 'cabal test all'

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