Add uploads cleanup console command

composer.json

@@ -9,6 +9,7 @@
         "sensio/framework-extra-bundle": "^5.1",
         "symfony/console": "^4.0",
         "symfony/debug": "^4.0",
+        "symfony/filesystem": "^4.0",
         "symfony/flex": "^1.0",
         "symfony/framework-bundle": "^4.0",
         "symfony/lts": "^4@dev",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "76c7ab30aaf88fded46189060d30a852",
+    "content-hash": "5f0891f0acd5a0d27efb15cbb37c7041",
     "packages": [
         {
             "name": "creof/doctrine2-spatial",
@@ -2266,16 +2266,16 @@
         },
         {
             "name": "symfony/filesystem",
-            "version": "v4.0.2",
+            "version": "v4.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "8c2868641d0c4885eee9c12a89c2b695eb1985cd"
+                "reference": "760e47a4ee64b4c48f4b30017011e09d4c0f05ed"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/8c2868641d0c4885eee9c12a89c2b695eb1985cd",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/760e47a4ee64b4c48f4b30017011e09d4c0f05ed",
-                "reference": "8c2868641d0c4885eee9c12a89c2b695eb1985cd",
+                "reference": "760e47a4ee64b4c48f4b30017011e09d4c0f05ed",
                 "shasum": ""
             },
             "require": {
@@ -2311,20 +2311,20 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2017-12-14T19:48:22+00:00"
+            "time": "2018-01-03T07:38:00+00:00"
         },
         {
             "name": "symfony/finder",
-            "version": "v4.0.2",
+            "version": "v4.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "c9cdda4dc4a3182d8d6daeebce4a25fef078ea4c"
+                "reference": "8b08180f2b7ccb41062366b9ad91fbc4f1af8601"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/c9cdda4dc4a3182d8d6daeebce4a25fef078ea4c",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/8b08180f2b7ccb41062366b9ad91fbc4f1af8601",
-                "reference": "c9cdda4dc4a3182d8d6daeebce4a25fef078ea4c",
+                "reference": "8b08180f2b7ccb41062366b9ad91fbc4f1af8601",
                 "shasum": ""
             },
             "require": {
@@ -2360,7 +2360,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-07T14:45:01+00:00"
+            "time": "2018-01-03T07:38:00+00:00"
         },
         {
             "name": "symfony/flex",

src/Command/UploadCleanupCommand.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\Filesystem\Exception\IOExceptionInterface;
+use Doctrine\Common\Persistence\ObjectManager;
+
+use App\Entity\Rider;
+use App\Service\FileUploader;
+
+use DirectoryIterator;
+
+class UploadCleanupCommand extends Command
+{
+    private $encoder_factory;
+    private $object_manager;
+
+    public function __construct(ObjectManager $om, Filesystem $fs, FileUploader $uploader)
+    {
+        $this->object_manager = $om;
+        $this->filesystem = $fs;
+        $this->uploader = $uploader;
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this->setName('upload:cleanup')
+            ->setDescription('Clean up uploads folder.')
+            ->setHelp('Cleans up all orphaned files from the uploads folder.');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $output->writeln('Retrieving file whitelist...');
+
+        // get all image filenames
+        $em = $this->object_manager;
+        $rows = $em->getRepository(Rider::class)->findAll();
+        $whitelist = ['.gitkeep'];
+
+        if (!empty($rows)) {
+            foreach ($rows as $row) {
+                $image = $row->getImageFile();
+
+                if (!empty($image)) {
+                    $whitelist[] = $image;
+                }
+            }
+        }
+
+        $directory = $this->uploader->getTargetDir();
+
+        // get all files in folder
+        $files = new DirectoryIterator($directory);
+
+        $i = 0;
+
+        // delete all files that are not linked
+        foreach ($files as $file) {
+            $filename = $file->getFilename();
+
+            if (!in_array($filename, $whitelist) && $file->isFile()) {
+                try {
+                    $this->filesystem->remove($directory . '/' . $filename);
+                } catch (IOExceptionInterface $e) {
+                    $output->writeln('An error occurred while deleting the file "' . $filename . '"!');
+                }
+
+                $i++;
+            }
+        }
+
+        if ($i > 0)
+            $output->writeln('Deleted ' . $i . ' orphaned file(s). Done!');
+        else
+            $output->writeln('No files found. Done!');
+    }
+}