Added `kleidukos/get-tested` action to generate CI matrix #64 #102

	name: Build

	on:
	push:
	branches:
	- main
	pull_request:
	types:
	- opened
	- synchronize

	concurrency:
	group: build-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	generate-matrix:
	name: "Generate matrix from cabal"
	outputs:
	matrix: ${{ steps.set-matrix.outputs.matrix }}
	runs-on: ubuntu-latest
	steps:
	- name: Extract the tested GHC versions
	id: set-matrix
	uses: kleidukos/get-tested@v0.1.6.0
	with:
	cabal-file: dotenv.cabal
	ubuntu: true
	version: 0.1.6.0

	build-and-test:
	name: GHC ${{ matrix.ghc }} on ${{ matrix.os }}
	needs: generate-matrix
	runs-on: ${{ matrix.os }}
	strategy:
	matrix: ${{ fromJSON(needs.generate-matrix.outputs.matrix) }}

	steps:
	- uses: actions/checkout@v3

	- name: Setup Haskell
	id: setup-haskell-cabal
	uses: haskell-actions/setup@v2
	with:
	ghc-version: ${{ matrix.ghc }}
	cabal-version: "3.8"

	- name: Update dependencies with Hackage
	run: cabal update

	- name: Build dependencies
	run: cabal freeze --enable-tests

	- name: Cache dependencies and dist-newstyle
	uses: actions/cache@v3
	with:
	path: \|
	${{ steps.setup-haskell-cabal.outputs.cabal-store }}
	dist-newstyle
	key: dependencies-${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}
	restore-keys: \|
	dependencies-${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}
	dependencies-${{ runner.os }}-${{ matrix.ghc }}-

	- name: Install dependencies
	run: cabal install --only-dependencies

	- name: Build project
	run: cabal build --enable-tests

	- name: Run tests
	run: cabal test --enable-tests

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