Drush functions autoloading (#65)

* Add integration testing with Drush

* Load Drush legacy includes

* Return checking

Author: mglaman

.gitignore

@@ -2,5 +2,4 @@ composer.phar
 composer.lock
 /vendor/
 /clover.xml
-/tests/fixtures/drupal/core
 .circleci/config_local.yml

composer.json

@@ -20,7 +20,8 @@
         "phpunit/phpunit": "^7.5",
         "phpstan/phpstan-deprecation-rules": "^0.11.0",
         "composer/installers": "^1.6",
-        "drupal/core": "^8.6"
+        "drupal/core": "^8.6",
+        "drush/drush": "^9.6"
     },
     "conflict": {
         "nette/di": ">=3.0"

src/Drupal/Bootstrap.php

@@ -66,7 +66,9 @@ public function register(): void
             throw new \RuntimeException('Cannot determine the Drupal root from ' . $drupalRoot);
         }
         $this->drupalRoot = $drupalRoot;
-        $this->autoloader = include realpath($GLOBALS['drupalVendorDir']) . '/autoload.php';
+
+        $drupalVendorRoot = realpath($GLOBALS['drupalVendorDir']);
+        $this->autoloader = include $drupalVendorRoot . '/autoload.php';
 
         $this->extensionDiscovery = new ExtensionDiscovery($this->drupalRoot);
         $this->extensionDiscovery->setProfileDirectories([]);
@@ -121,6 +123,17 @@ public function register(): void
         foreach ($this->themeData as $extension) {
             $this->loadExtension($extension);
         }
+
+        if (class_exists(\Drush\Drush::class)) {
+            $reflect = new \ReflectionClass(\Drush\Drush::class);
+            if ($reflect->getFileName() !== false) {
+                $drushDir = dirname($reflect->getFileName(), 2);
+                /** @var \SplFileInfo $file */
+                foreach (Finder::findFiles('*.inc')->in($drushDir . '/includes') as $file) {
+                    require_once $file->getPathname();
+                }
+            }
+        }
     }
 
     protected function loadLegacyIncludes(): void

tests/DrupalIntegrationTest.php

@@ -50,11 +50,18 @@ public function testDrupalTestInChildSiteContant() {
         $this->assertCount(0, $errors);
     }
 
+    public function testDrupalModuleWithDrushCommands() {
+        $path = __DIR__ . '/fixtures/drupal/modules/drush_command/src/Commands/TestDrushCommands.php';
+        $errors = $this->runAnalyze($path);
+        $this->assertCount(0, $errors, print_r($errors, true));
+    }
+
     private function runAnalyze(string $path) {
         $rootDir = __DIR__ . '/fixtures/drupal';
+        $tmpDir = sys_get_temp_dir() . '/' . time() . 'phpstan';
         $containerFactory = new ContainerFactory($rootDir);
         $container = $containerFactory->create(
-            sys_get_temp_dir() . '/' . time() . 'phpstan',
+            $tmpDir,
             [__DIR__ . '/fixtures/config/phpunit-drupal-phpstan.neon'],
             []
         );

tests/fixtures/drupal/.gitignore

@@ -0,0 +1 @@
+/core

tests/fixtures/drupal/modules/drush_command/drush.services.yml

@@ -0,0 +1,5 @@
+services:
+  drush_command.commands:
+    class: Drupal\drush_command\Commands\TestDrushCommands
+    tags:
+      - { name: drush.command }

tests/fixtures/drupal/modules/drush_command/drush_command.info.yml

@@ -0,0 +1,3 @@
+name: drush_command
+type: module
+core: 8.x

tests/fixtures/drupal/modules/drush_command/src/Commands/TestDrushCommands.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Drupal\drush_command\Commands;
+
+use Drush\Commands\DrushCommands;
+
+class TestDrushCommands extends DrushCommands {
+
+    /**
+     * Test
+     *
+     *  @command phpstan:example
+     */
+    public function example() {
+        if (drush_is_osx()) {
+            $this->io()->writeln('macOS');
+        } elseif (drush_is_cygwin() || drush_is_mingw()) {
+            $this->io()->writeln('Windows');
+        } else {
+            $this->io()->writeln('Linux ¯\_(ツ)_/¯');
+        }
+    }
+
+    public function batchProcess() {
+        drush_backend_batch_process();
+    }
+
+}