drupal-check conflicts with phpstan/extension-installer

[navneet0693]

How is drupal-check installed?
This is the content of my composer.json file.

"require": {
        "drush/drush": "10.*@stable",
        "goalgorilla/open_social": "dev-feature/3162491-group-update-d9-coding-standard",
        "goalgorilla/open_social_scripts": "^2.0",
        "drupal/redis": "^1.5",
        "blackfire/php-sdk": "^v1.27.1"
    },
    "require-dev": {
        "dealerdirect/phpcodesniffer-composer-installer": "~0.7.1",
        "drupal/coder": "8.3.13",
        "drupal/composer_deploy": "^1.6",
        "drupal/core-dev": "~9.1.0",
        "drupal/devel": "4.1.1",
        "drupal/drupal-extension": "^4.1",
        "jcalderonzumba/gastonjs": "~1.2.0",
        "jcalderonzumba/mink-phantomjs-driver": "~0.3.3",
        "mglaman/drupal-check": "^1.2",
        "mglaman/phpstan-drupal": "^1.0.0",
        "mikey179/vfsstream": "^1.6",
        "phpmd/phpmd": "^2.10",
        "phpspec/prophecy-phpunit": "^2.0",
        "phpstan/extension-installer": "^1.1",
        "phpstan/phpstan-deprecation-rules": "^1.0.0",
        "slevomat/coding-standard": "^7.0",
        "squizlabs/html_codesniffer": "*",
        "symplify/easy-coding-standard": "^9.4"
    }

drupal-check is installed as a dependency to my project

Environment:

• OS: macOS Monterey
• PHP Version: 7.4.25
• Drupal core: 9.1.13

Describe the bug
Command: vendor/bin/drupal-check -ad html/profiles/contrib/social

It throws me:

These files are included multiple times:
- /Users/navneet0693/Sites/drupal_social/vendor/phpstan/phpstan-deprecation-rules/rules.neon
- /Users/navneet0693/Sites/drupal_social/vendor/mglaman/phpstan-drupal/extension.neon

It can lead to unexpected results. If you're using phpstan/extension-installer, make sure you have removed corresponding neon files from your project config file.

Console output

Performing deprecation checks
Performing analysis checks
Analyzing path: /Users/navneet0693/Sites/drupal_social/html/profiles/contrib/social
Current working directory: /Users/navneet0693/Sites/drupal_social
Using Drupal root: /Users/navneet0693/Sites/drupal_social/html
Using vendor root: /Users/navneet0693/Sites/drupal_social/vendor
Assumed running as global dependency
PHPStan path: /Users/navneet0693/Sites/drupal_social/vendor/phpstan/phpstan/phpstan.phar
PHPStan configuration path: /private/var/folders/3x/3vzyt9js70g4_hwnd5642b7w0000gn/T/drupal_check_phpstan_1636719225.neon
PHPStan configuration:
parameters:
	tipsOfTheDay: false
	reportUnmatchedIgnoredErrors: false
	excludePaths:
		- */tests/Drupal/Tests/Listeners/Legacy/*
		- */tests/fixtures/*.php
		- */settings*.php
		- */node_modules/*

	ignoreErrors:
		- "#\\Drupal calls should be avoided in classes, use dependency injection instead#"
		- "#Plugin definitions cannot be altered.#"
		- "#Missing cache backend declaration for performance.#"
		- "#Plugin manager has cache backend specified but does not declare cache tags.#"
		- "#Unsafe usage of new static\\(\\)#"

	drupal:
		drupal_root: /Users/navneet0693/Sites/drupal_social/html

	level: 4
	bootstrapFiles:
		- /Users/navneet0693/Sites/drupal_social/vendor/mglaman/drupal-check/error-bootstrap.php

includes:
	- /Users/navneet0693/Sites/drupal_social/vendor/phpstan/phpstan-deprecation-rules/rules.neon
	- /Users/navneet0693/Sites/drupal_social/vendor/mglaman/phpstan-drupal/extension.neon


Executing PHPStan
These files are included multiple times:
- /Users/navneet0693/Sites/drupal_social/vendor/phpstan/phpstan-deprecation-rules/rules.neon
- /Users/navneet0693/Sites/drupal_social/vendor/mglaman/phpstan-drupal/extension.neon

It can lead to unexpected results. If you're using phpstan/extension-installer, make sure you have removed corresponding neon files from your project config file.
Finished executing PHPStan
Unlinking PHPStan configuration
Return PHPStan exit code

[mglaman]

If you're going to add phpstan/extension-installer, that's why. Either use PHPStan directly or (no more errors) or remove phpstan/extension-installer. The installer auto-configures extensions.

We could detect if that exists and make the autoconfig easier. But for now, do

composer remove -D phpstan/extension-installer

[mglaman]

Retitled. If the extension-installer is installed, we can skip adding those configuration files.