Upgrades, min PHP 7.4 #36

	# This file lints the code and runs tests.
	name: CI

	on:
	pull_request:
	push:

	env:
	COMPOSER_FLAGS: "--ansi --no-interaction --no-progress --no-suggest --prefer-dist"

	jobs:
	tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php:
	- '8.4'
	- '8.3'
	- '8.2'
	- '8.1'
	- '8.0'
	- '7.4'
	include:
	- php: '7.4'
	cs_fixer: true
	- php: '8.0'
	phpstan: true
	name: 'Check with PHP ${{ matrix.php }}'
	steps:
	- uses: actions/checkout@v4

	- name: Install Nix
	uses: cachix/install-nix-action@v31

	- name: Set up Nix cache
	uses: cachix/cachix-action@v16
	with:
	# Use cache from https://github.com/fossar/nix-phps
	name: fossar

	- name: Update flake.nix to match the current CI job from matrix
	run: sed -i 's/matrix.phpPackage = "php";/matrix.phpPackage = builtins.replaceStrings ["."] [""] "php${{ matrix.php }}";/' flake.nix

	- name: Get Composer Cache Directory
	id: composer-cache
	run: \|
	echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"

	- uses: actions/cache@v3
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-composer-

	- name: Install dependencies
	run: nix-shell --run 'composer install'

	- name: Check source code syntax
	run: nix-shell --run 'composer lint'

	- name: Lint source code
	if: matrix.cs_fixer
	run: nix-shell --run 'composer cs'

	- name: Run unit tests
	run: nix-shell --run 'composer test'

	- name: Statically analyze source code
	if: matrix.phpstan
	run: nix-shell --run 'composer phpstan'

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