WIP #50

	name: CI

	# Trigger the workflow on push or pull request, but only for the master branch
	on:
	pull_request:
	push:
	# branches: [master]

	concurrency:
	group: ${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	# TODO: Not sure how to cache this one.. cachix?
	nix:
	name: nix build
	runs-on: ubuntu-latest
	container:
	image: 'nixos/nix:2.3.6'
	steps:
	- uses: actions/checkout@v2

	- name: Build
	run: \|
	nix-build

	cabal:
	name: ${{ matrix.os }} / ghc ${{ matrix.ghc }}
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	cabal: ["3.2"]
	ghc:
	- "8.6.5"
	- "8.10.7"
	- "9.0.2"
	- "9.2.8"

	steps:
	- uses: actions/checkout@v2
	# if: github.event.action == 'opened' \|\| github.event.action == 'synchronize' \|\| github.event.ref == 'refs/heads/master'

	- uses: haskell/actions/setup@v1
	id: setup-haskell-cabal
	name: Setup Haskell
	with:
	ghc-version: ${{ matrix.ghc }}
	cabal-version: ${{ matrix.cabal }}

	- name: Freeze
	run: \|
	cabal freeze

	- uses: actions/cache@v1
	name: Cache ~/.cabal/store
	with:
	path: ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
	key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}
	restore-keys: \|
	${{ runner.os }}-${{ matrix.ghc }}-

	- name: Build
	run: \|
	cabal configure --enable-tests --enable-benchmarks --test-show-details=direct
	cabal build all --write-ghc-environment-files=always
	ghc -iexample Example

	- name: Test
	run: \|
	cabal test all

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