Created GenerateCharsetCommand

module/CLI/src/Command/Config/GenerateCharsetCommand.php

@@ -0,0 +1,44 @@
+<?php
+namespace Shlinkio\Shlink\CLI\Command\Config;
+
+use Acelaya\ZsmAnnotatedServices\Annotation\Inject;
+use Shlinkio\Shlink\Core\Service\UrlShortener;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Zend\I18n\Translator\TranslatorInterface;
+
+class GenerateCharsetCommand extends Command
+{
+    /**
+     * @var TranslatorInterface
+     */
+    private $translator;
+
+    /**
+     * GenerateCharsetCommand constructor.
+     * @param TranslatorInterface $translator
+     *
+     * @Inject({"translator"})
+     */
+    public function __construct(TranslatorInterface $translator)
+    {
+        $this->translator = $translator;
+        parent::__construct(null);
+    }
+
+    public function configure()
+    {
+        $this->setName('config:generate-charset')
+             ->setDescription(sprintf($this->translator->translate(
+                 'Generates a character set sample just by shuffling the default one, "%s". '
+                 . 'Then it can be set in the SHORTCODE_CHARS environment variable'
+             ), UrlShortener::DEFAULT_CHARS));
+    }
+
+    public function execute(InputInterface $input, OutputInterface $output)
+    {
+        $charSet = str_shuffle(UrlShortener::DEFAULT_CHARS);
+        $output->writeln($this->translator->translate('Character set:') . sprintf(' <info>%s</info>', $charSet));
+    }
+}