chore: introduce phpcs and phpstan (#159) #65

	name: Timber starter theme tests

	on:
	push:
	branches:
	- '1.x'
	- '2.x'
	pull_request:
	types:
	- opened
	- synchronize
	- ready_for_review

	# Cancel previous workflow run groups that have not completed.
	concurrency:
	# Group workflow runs by workflow name, along with the head branch ref of the pull request
	# or otherwise the branch or tag ref.
	group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	phpunit:
	runs-on: ubuntu-latest

	continue-on-error: ${{ matrix.experimental }}
	strategy:
	fail-fast: false
	matrix:
	php: ['8.1', '8.2']
	wp: ['latest']
	multisite: ['0', '1']
	extensions: ['gd']
	experimental: [false]
	include:
	# PHP 8.2 / experimental
	- php: '8.2'
	wp: 'trunk'
	dependency-version: 'highest'
	multisite: '0'
	experimental: true
	# PHP 8.3 / experimental
	- php: '8.3'
	wp: 'trunk'
	dependency-version: 'highest'
	multisite: '0'
	experimental: true
	# Coverage
	- php: '8.1'
	wp: 'latest'
	dependency-version: 'highest'
	multisite: '0'
	experimental: false

	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	tools: composer:v2
	extensions: curl, date, dom, iconv, json, libxml, gd

	- name: Setup problem matchers for PHP
	run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"

	- name: Setup problem matchers for PHPUnit
	run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"

	- uses: ramsey/composer-install@v2

	- name: Run tests
	run: composer run test
	env:
	WP_MULTISITE: ${{ matrix.multisite }}

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