Created command to generate a new api key

module/CLI/src/Command/Api/GenerateKeyCommand.php

@@ -0,0 +1,56 @@
+<?php
+namespace Shlinkio\Shlink\CLI\Command\Api;
+
+use Acelaya\ZsmAnnotatedServices\Annotation\Inject;
+use Shlinkio\Shlink\Rest\Service\ApiKeyService;
+use Shlinkio\Shlink\Rest\Service\ApiKeyServiceInterface;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Zend\I18n\Translator\TranslatorInterface;
+
+class GenerateKeyCommand extends Command
+{
+    /**
+     * @var ApiKeyServiceInterface
+     */
+    private $apiKeyService;
+    /**
+     * @var TranslatorInterface
+     */
+    private $translator;
+
+    /**
+     * GenerateKeyCommand constructor.
+     * @param ApiKeyServiceInterface|ApiKeyService $apiKeyService
+     * @param TranslatorInterface $translator
+     *
+     * @Inject({ApiKeyService::class, "translator"})
+     */
+    public function __construct(ApiKeyServiceInterface $apiKeyService, TranslatorInterface $translator)
+    {
+        $this->apiKeyService = $apiKeyService;
+        $this->translator = $translator;
+        parent::__construct(null);
+    }
+
+    public function configure()
+    {
+        $this->setName('api-key:generate')
+             ->setDescription($this->translator->translate('Generates a new valid API key.'))
+             ->addOption(
+                 'expirationDate',
+                 'e',
+                 InputOption::VALUE_OPTIONAL,
+                 $this->translator->translate('The date in which the API key should expire. Use any valid PHP format.')
+             );
+    }
+
+    public function execute(InputInterface $input, OutputInterface $output)
+    {
+        $expirationDate = $input->getOption('expirationDate');
+        $apiKey = $this->apiKeyService->create(isset($expirationDate) ? new \DateTime($expirationDate) : null);
+        $output->writeln($this->translator->translate('Generated API key') . sprintf(': <info>%s</info>', $apiKey));
+    }
+}