Please introduce PHPStan in CI

[szepeviktor]

composer require --dev szepeviktor/phpstan-wordpress
vendor/bin/phpstan analyze

I've cleaned up the codebase up to Level 4.
Robust code starts at Level 5!

Here is the config: phpstan.neon.dist

includes:
    - vendor/szepeviktor/phpstan-wordpress/extension.neon
parameters:
    level: 4
#    level: max
    inferPrivatePropertyTypeFromConstructor: true
    paths:
        - integrations/
        - wp-admin/
        - wp-includes/
    autoload_files:
        - tests/phpstan/bootstrap.php
        - integrations/functions.php
        - wp-includes/class-wp-web-app-manifest.php
        - wp-includes/class-wp-https-detection.php
        - wp-includes/class-wp-https-ui.php
        - wp-includes/interface-wp-service-worker-registry.php
        - wp-includes/interface-wp-service-worker-registry-aware.php
        - wp-includes/class-wp-service-workers.php
        - wp-includes/class-wp-service-worker-scripts.php
        - wp-includes/components/interface-wp-service-worker-component.php
        - wp-includes/components/class-wp-service-worker-configuration-component.php
        - wp-includes/components/class-wp-service-worker-navigation-routing-component.php
        - wp-includes/components/class-wp-service-worker-precaching-routes-component.php
        - wp-includes/components/class-wp-service-worker-precaching-routes.php
        - wp-includes/components/class-wp-service-worker-caching-routes-component.php
        - wp-includes/components/class-wp-service-worker-caching-routes.php
        - wp-includes/service-workers.php
        - wp-includes/default-filters.php
        - wp-includes/query.php
        - wp-includes/template.php
        - wp-includes/general-template.php
        - wp-includes/post-template.php
        - wp-includes/template-loader.php
        - wp-includes/class-wp.php
        - wp-includes/class-wp-query.php
        - wp-admin/admin.php
    autoload_directories:
        - integrations/
    dynamicConstantNames:
        - SCRIPT_DEBUG
    ignoreErrors:
        # Uses func_get_args()
        - '#^Function apply_filters(_ref_array)? invoked with [34567] parameters, 2 required\.$#'
        # Dynamically generated
        - '#^Access to an undefined property WP_Query::\$(is_offline|is_500)\.$#'

:)

[szepeviktor]

ooops, the bootstrap file: tests/phpstan/bootstrap.php

<?php

define( 'PWA_VERSION', '0.0.0' );
define( 'PWA_PLUGIN_FILE', dirname( __DIR__, 2 ) . '/pwa.php' );
define( 'PWA_PLUGIN_DIR', dirname( __DIR__, 2 ) );
define( 'PWA_PLUGIN_URL', '' );


define( 'WPINC', '' );
define( 'TEMPLATEPATH', '' );
define( 'STYLESHEETPATH', '' );
define( 'SCRIPT_DEBUG', true );

// Should use core function instead.
define( 'WP_CONTENT_DIR', '' );