PHPStan Extension Installer

Composer plugin for automatic installation of PHPStan extensions.

Motivation

diff --git a/phpstan.neon b/phpstan.neon
index db4e3df32e..2ca30fa20a 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,12 +1,3 @@
-includes:
-	- vendor/phpstan/phpstan-doctrine/extension.neon
-	- vendor/phpstan/phpstan-doctrine/rules.neon
-	- vendor/phpstan/phpstan-nette/extension.neon
-	- vendor/phpstan/phpstan-nette/rules.neon
-	- vendor/phpstan/phpstan-phpunit/extension.neon
-	- vendor/phpstan/phpstan-phpunit/rules.neon
-	- vendor/phpstan/phpstan-strict-rules/rules.neon
-
 parameters:
 	autoload_directories:
 		- %rootDir%/../../../build/SlevomatSniffs
diff --git a/composer.json b/composer.json
index 1b578dd624..f6ebf6e477 100644
--- a/composer.json
+++ b/composer.json
@@ -142,6 +142,7 @@
 		"jakub-onderka/php-parallel-lint": "1.0.0",
 		"justinrainbow/json-schema": "5.2.8",
 		"ondrejmirtes/mocktainer": "0.8",
+		"phpstan/extension-installer": "^1.0",
 		"phpstan/phpstan": "^0.11.7",
 		"phpstan/phpstan-doctrine": "^0.11.3",
 		"phpstan/phpstan-nette": "^0.11.1",

Usage

composer require --dev phpstan/extension-installer

Starting from Composer 2.2.0 you'll get the following question:

phpstan/extension-installer contains a Composer plugin which is currently not in your allow-plugins config. See https://getcomposer.org/allow-plugins
Do you trust "phpstan/extension-installer" to execute code and wish to enable it now? (writes "allow-plugins" to composer.json) [y,n,d,?]

Answer with y to allow the plugin.

Instructions for extension developers

It's best (but optional) to set the extension's composer package type to phpstan-extension for this plugin to be able to recognize it and to be discoverable on Packagist.

Add phpstan key in the extension composer.json's extra section:

{
  "extra": {
    "phpstan": {
      "includes": [
        "extension.neon"
      ]
    }
  }
}

Ignoring a particular extension

You may want to disable auto-installation of a particular extension to handle installation manually. Ignore an extension by adding an extra.phpstan/extension-installer.ignore array in composer.json that specifies a list of packages to ignore:

{
  "extra": {
    "phpstan/extension-installer": {
      "ignore": [
        "phpstan/phpstan-phpunit"
      ]
    }
  }
}

Limitations

The extension installer depends on Composer script events, therefore you cannot use --no-scripts flag.