add native Lumen support (#18)

* add native Lumen support

* add missing bindings to the container

* change deprecated ServiceBuilder to StorageClient

* add travis

.travis.yml

@@ -0,0 +1,12 @@
+language: php
+sudo: false
+php:
+  - '7.0'
+  - '7.1'
+
+install:
+  - composer install --no-interaction --prefer-source
+  - composer require laravel/lumen-framework
+
+script:
+  - php vendor/bin/phpunit

composer.json

@@ -1,14 +1,20 @@
 {
     "name": "websight/l5-google-cloud-storage",
-    "description": "Laravel 5 Flysystem Google Cloud Storage  Service Provider",
+    "description": "Laravel 5 Flysystem Google Cloud Storage Service Provider",
     "require": {
         "illuminate/filesystem": "~5.0.17|5.1.*|5.2.*|5.3.*|5.4.*|5.5.*",
         "illuminate/support": "~5.0.17|5.1.*|5.2.*|5.3.*|5.4.*|5.5.*",
         "cedricziel/flysystem-gcs": "^1.0"
     },
-    "keywords": ["laravel", "laravel5", "flysystem"],
+    "require-dev": {
+        "phpunit/phpunit": "^6.5"
+    },
+    "keywords": ["laravel", "laravel5", "flysystem", "lumen"],
     "homepage": "https://github.com/websightgmbh/l5-google-cloud-storage",
     "license": "MIT",
+    "suggest": {
+        "laravel/lumen-framework": "To test the Lumen bindings"
+    },
     "authors": [
         {
             "name": "Cedric Ziel",
@@ -17,7 +23,8 @@
     ],
     "autoload": {
         "psr-4": {
-            "Websight\\GcsProvider\\": "src/Websight/GcsProvider/"
+            "Websight\\GcsProvider\\": "src/Websight/GcsProvider/",
+            "Websight\\GcsProvider\\Tests\\": "src/Websight/GcsProvider/tests/"
         }
     },
     "extra": {

phpunit.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit bootstrap="./vendor/autoload.php" colors="true" forceCoversAnnotation="false">
+    <testsuites>
+        <testsuite name="lumen-support test suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter processUncoveredFilesFromWhitelist="true">
+        <whitelist>
+            <directory suffix=".php">src</directory>
+            <exclude>
+                <directory>tests</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>

src/Websight/GcsProvider/CloudStorageServiceProvider.php

@@ -3,7 +3,7 @@
 namespace Websight\GcsProvider;
 
 use CedricZiel\FlysystemGcs\GoogleCloudStorageAdapter;
-use Google\Cloud\ServiceBuilder;
+use Google\Cloud\Storage\StorageClient;
 use Illuminate\Support\ServiceProvider;
 use League\Flysystem\Filesystem;
 use Storage;
@@ -35,12 +35,62 @@ public function boot()
 
             if (array_key_exists('credentials', $config) && false === empty($config['credentials'])) {
                 $serviceBuilderConfig += ['keyFilePath' => $config['credentials']];
-                $optionalServiceBuilder = new ServiceBuilder($serviceBuilderConfig);
+                $optionalServiceBuilder = new StorageClient($serviceBuilderConfig);
             }
 
             $adapter = new GoogleCloudStorageAdapter($optionalServiceBuilder, $adapterConfiguration);
 
             return new Filesystem($adapter);
         });
     }
+
+    /**
+     * Register bindings in the container.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        if (!$this->app->has('filesystem')) {
+            $this->app->singleton('filesystem', function ($app) {
+                /** @var \Laravel\Lumen\Application $app */
+                return $app->loadComponent(
+                    'filesystems',
+                    \Illuminate\Filesystem\FilesystemServiceProvider::class,
+                    'filesystem'
+                );
+            });
+
+            $this->app->singleton(
+                \Illuminate\Contracts\Filesystem\Factory::class,
+                function ($app) {
+                    return new \Illuminate\Filesystem\FilesystemManager($app);
+                }
+            );
+        }
+
+        $this->registerFacades();
+    }
+
+    /**
+     * Register Storage facade.
+     *
+     * @return void
+     */
+    protected function registerFacades()
+    {
+        if (!class_exists('Storage')) {
+            class_alias(\Illuminate\Support\Facades\Storage::class, 'Storage');
+        }
+    }
+
+    /**
+     * Decides wheter the current app is lumen.
+     *
+     * @return bool
+     */
+    protected function isLumen()
+    {
+        return str_contains($this->app->version(), 'Lumen');
+    }
 }

tests/LumenSupportTest.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Websight\GcsProvider\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Laravel\Lumen\Application;
+use Illuminate\Config\Repository;
+use Websight\GcsProvider\CloudStorageServiceProvider;
+
+class LumenSupportTest extends TestCase
+{
+    /**
+     * @var Application
+     */
+    protected $app;
+
+    /**
+     * @var CloudStorageServiceProvider
+     */
+    protected $provider;
+
+    public function setUp()
+    {
+        if (!class_exists(Application::class)) {
+            $this->markTestSkipped();
+        }
+
+        $this->app = $this->setupApplication();
+        $this->provider = $this->setupServiceProvider($this->app);
+
+        parent::setUp();
+    }
+
+    protected function setupApplication()
+    {
+        $app = new Application(sys_get_temp_dir());
+        $app->instance('config', new Repository());
+
+        $app->withFacades();
+
+        return $app;
+    }
+
+    protected function setupServiceProvider(Application $app)
+    {
+        $provider = new CloudStorageServiceProvider($app);
+        $app->register($provider);
+        $provider->boot();
+
+        return $provider;
+    }
+
+    public function testFacadeIsExists()
+    {
+        $this->assertTrue(class_exists('Storage'));
+    }
+
+    public function testRequiredProvidersAreRegistered()
+    {
+        $this->assertTrue($this->app->has('filesystem'));
+    }
+}