Update to laravel 7

vendor/symfony/translation/Command/TranslationPullCommand.php

@@ -0,0 +1,188 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Completion\CompletionInput;
+use Symfony\Component\Console\Completion\CompletionSuggestions;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Translation\Catalogue\TargetOperation;
+use Symfony\Component\Translation\MessageCatalogue;
+use Symfony\Component\Translation\Provider\TranslationProviderCollection;
+use Symfony\Component\Translation\Reader\TranslationReaderInterface;
+use Symfony\Component\Translation\Writer\TranslationWriterInterface;
+
+/**
+ * @author Mathieu Santostefano <msantostefano@protonmail.com>
+ */
+final class TranslationPullCommand extends Command
+{
+    use TranslationTrait;
+
+    protected static $defaultName = 'translation:pull';
+    protected static $defaultDescription = 'Pull translations from a given provider.';
+
+    private $providerCollection;
+    private $writer;
+    private $reader;
+    private $defaultLocale;
+    private $transPaths;
+    private $enabledLocales;
+
+    public function __construct(TranslationProviderCollection $providerCollection, TranslationWriterInterface $writer, TranslationReaderInterface $reader, string $defaultLocale, array $transPaths = [], array $enabledLocales = [])
+    {
+        $this->providerCollection = $providerCollection;
+        $this->writer = $writer;
+        $this->reader = $reader;
+        $this->defaultLocale = $defaultLocale;
+        $this->transPaths = $transPaths;
+        $this->enabledLocales = $enabledLocales;
+
+        parent::__construct();
+    }
+
+    public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
+    {
+        if ($input->mustSuggestArgumentValuesFor('provider')) {
+            $suggestions->suggestValues($this->providerCollection->keys());
+
+            return;
+        }
+
+        if ($input->mustSuggestOptionValuesFor('domains')) {
+            $provider = $this->providerCollection->get($input->getArgument('provider'));
+
+            if ($provider && method_exists($provider, 'getDomains')) {
+                $domains = $provider->getDomains();
+                $suggestions->suggestValues($domains);
+            }
+
+            return;
+        }
+
+        if ($input->mustSuggestOptionValuesFor('locales')) {
+            $suggestions->suggestValues($this->enabledLocales);
+
+            return;
+        }
+
+        if ($input->mustSuggestOptionValuesFor('format')) {
+            $suggestions->suggestValues(['php', 'xlf', 'xlf12', 'xlf20', 'po', 'mo', 'yml', 'yaml', 'ts', 'csv', 'json', 'ini', 'res']);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $keys = $this->providerCollection->keys();
+        $defaultProvider = 1 === \count($keys) ? $keys[0] : null;
+
+        $this
+            ->setDefinition([
+                new InputArgument('provider', null !== $defaultProvider ? InputArgument::OPTIONAL : InputArgument::REQUIRED, 'The provider to pull translations from.', $defaultProvider),
+                new InputOption('force', null, InputOption::VALUE_NONE, 'Override existing translations with provider ones (it will delete not synchronized messages).'),
+                new InputOption('intl-icu', null, InputOption::VALUE_NONE, 'Associated to --force option, it will write messages in "%domain%+intl-icu.%locale%.xlf" files.'),
+                new InputOption('domains', null, InputOption::VALUE_OPTIONAL | InputOption::VALUE_IS_ARRAY, 'Specify the domains to pull.'),
+                new InputOption('locales', null, InputOption::VALUE_OPTIONAL | InputOption::VALUE_IS_ARRAY, 'Specify the locales to pull.'),
+                new InputOption('format', null, InputOption::VALUE_OPTIONAL, 'Override the default output format.', 'xlf12'),
+            ])
+            ->setHelp(<<<'EOF'
+The <info>%command.name%</> command pulls translations from the given provider. Only
+new translations are pulled, existing ones are not overwritten.
+
+You can overwrite existing translations (and remove the missing ones on local side) by using the <comment>--force</> flag:
+
+  <info>php %command.full_name% --force provider</>
+
+Full example:
+
+  <info>php %command.full_name% provider --force --domains=messages --domains=validators --locales=en</>
+
+This command pulls all translations associated with the <comment>messages</> and <comment>validators</> domains for the <comment>en</> locale.
+Local translations for the specified domains and locale are deleted if they're not present on the provider and overwritten if it's the case.
+Local translations for others domains and locales are ignored.
+EOF
+            )
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $io = new SymfonyStyle($input, $output);
+
+        $provider = $this->providerCollection->get($input->getArgument('provider'));
+        $force = $input->getOption('force');
+        $intlIcu = $input->getOption('intl-icu');
+        $locales = $input->getOption('locales') ?: $this->enabledLocales;
+        $domains = $input->getOption('domains');
+        $format = $input->getOption('format');
+        $xliffVersion = '1.2';
+
+        if ($intlIcu && !$force) {
+            $io->note('--intl-icu option only has an effect when used with --force. Here, it will be ignored.');
+        }
+
+        switch ($format) {
+            case 'xlf20': $xliffVersion = '2.0';
+            // no break
+            case 'xlf12': $format = 'xlf';
+        }
+
+        $writeOptions = [
+            'path' => end($this->transPaths),
+            'xliff_version' => $xliffVersion,
+            'default_locale' => $this->defaultLocale,
+        ];
+
+        if (!$domains) {
+            $domains = $provider->getDomains();
+        }
+
+        $providerTranslations = $provider->read($domains, $locales);
+
+        if ($force) {
+            foreach ($providerTranslations->getCatalogues() as $catalogue) {
+                $operation = new TargetOperation((new MessageCatalogue($catalogue->getLocale())), $catalogue);
+                if ($intlIcu) {
+                    $operation->moveMessagesToIntlDomainsIfPossible();
+                }
+                $this->writer->write($operation->getResult(), $format, $writeOptions);
+            }
+
+            $io->success(sprintf('Local translations has been updated from "%s" (for "%s" locale(s), and "%s" domain(s)).', parse_url($provider, \PHP_URL_SCHEME), implode(', ', $locales), implode(', ', $domains)));
+
+            return 0;
+        }
+
+        $localTranslations = $this->readLocalTranslations($locales, $domains, $this->transPaths);
+
+        // Append pulled translations to local ones.
+        $localTranslations->addBag($providerTranslations->diff($localTranslations));
+
+        foreach ($localTranslations->getCatalogues() as $catalogue) {
+            $this->writer->write($catalogue, $format, $writeOptions);
+        }
+
+        $io->success(sprintf('New translations from "%s" has been written locally (for "%s" locale(s), and "%s" domain(s)).', parse_url($provider, \PHP_URL_SCHEME), implode(', ', $locales), implode(', ', $domains)));
+
+        return 0;
+    }
+}

vendor/symfony/translation/Command/TranslationPushCommand.php

@@ -0,0 +1,182 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Completion\CompletionInput;
+use Symfony\Component\Console\Completion\CompletionSuggestions;
+use Symfony\Component\Console\Exception\InvalidArgumentException;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Translation\Provider\TranslationProviderCollection;
+use Symfony\Component\Translation\Reader\TranslationReaderInterface;
+use Symfony\Component\Translation\TranslatorBag;
+
+/**
+ * @author Mathieu Santostefano <msantostefano@protonmail.com>
+ */
+final class TranslationPushCommand extends Command
+{
+    use TranslationTrait;
+
+    protected static $defaultName = 'translation:push';
+    protected static $defaultDescription = 'Push translations to a given provider.';
+
+    private $providers;
+    private $reader;
+    private $transPaths;
+    private $enabledLocales;
+
+    public function __construct(TranslationProviderCollection $providers, TranslationReaderInterface $reader, array $transPaths = [], array $enabledLocales = [])
+    {
+        $this->providers = $providers;
+        $this->reader = $reader;
+        $this->transPaths = $transPaths;
+        $this->enabledLocales = $enabledLocales;
+
+        parent::__construct();
+    }
+
+    public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
+    {
+        if ($input->mustSuggestArgumentValuesFor('provider')) {
+            $suggestions->suggestValues($this->providers->keys());
+
+            return;
+        }
+
+        if ($input->mustSuggestOptionValuesFor('domains')) {
+            $provider = $this->providers->get($input->getArgument('provider'));
+
+            if ($provider && method_exists($provider, 'getDomains')) {
+                $domains = $provider->getDomains();
+                $suggestions->suggestValues($domains);
+            }
+
+            return;
+        }
+
+        if ($input->mustSuggestOptionValuesFor('locales')) {
+            $suggestions->suggestValues($this->enabledLocales);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $keys = $this->providers->keys();
+        $defaultProvider = 1 === \count($keys) ? $keys[0] : null;
+
+        $this
+            ->setDefinition([
+                new InputArgument('provider', null !== $defaultProvider ? InputArgument::OPTIONAL : InputArgument::REQUIRED, 'The provider to push translations to.', $defaultProvider),
+                new InputOption('force', null, InputOption::VALUE_NONE, 'Override existing translations with local ones (it will delete not synchronized messages).'),
+                new InputOption('delete-missing', null, InputOption::VALUE_NONE, 'Delete translations available on provider but not locally.'),
+                new InputOption('domains', null, InputOption::VALUE_OPTIONAL | InputOption::VALUE_IS_ARRAY, 'Specify the domains to push.'),
+                new InputOption('locales', null, InputOption::VALUE_OPTIONAL | InputOption::VALUE_IS_ARRAY, 'Specify the locales to push.', $this->enabledLocales),
+            ])
+            ->setHelp(<<<'EOF'
+The <info>%command.name%</> command pushes translations to the given provider. Only new
+translations are pushed, existing ones are not overwritten.
+
+You can overwrite existing translations by using the <comment>--force</> flag:
+
+  <info>php %command.full_name% --force provider</>
+
+You can delete provider translations which are not present locally by using the <comment>--delete-missing</> flag:
+
+  <info>php %command.full_name% --delete-missing provider</>
+
+Full example:
+
+  <info>php %command.full_name% provider --force --delete-missing --domains=messages --domains=validators --locales=en</>
+
+This command pushes all translations associated with the <comment>messages</> and <comment>validators</> domains for the <comment>en</> locale.
+Provider translations for the specified domains and locale are deleted if they're not present locally and overwritten if it's the case.
+Provider translations for others domains and locales are ignored.
+EOF
+            )
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $provider = $this->providers->get($input->getArgument('provider'));
+
+        if (!$this->enabledLocales) {
+            throw new InvalidArgumentException(sprintf('You must define "framework.translator.enabled_locales" or "framework.translator.providers.%s.locales" config key in order to work with translation providers.', parse_url($provider, \PHP_URL_SCHEME)));
+        }
+
+        $io = new SymfonyStyle($input, $output);
+        $domains = $input->getOption('domains');
+        $locales = $input->getOption('locales');
+        $force = $input->getOption('force');
+        $deleteMissing = $input->getOption('delete-missing');
+
+        $localTranslations = $this->readLocalTranslations($locales, $domains, $this->transPaths);
+
+        if (!$domains) {
+            $domains = $this->getDomainsFromTranslatorBag($localTranslations);
+        }
+
+        if (!$deleteMissing && $force) {
+            $provider->write($localTranslations);
+
+            $io->success(sprintf('All local translations has been sent to "%s" (for "%s" locale(s), and "%s" domain(s)).', parse_url($provider, \PHP_URL_SCHEME), implode(', ', $locales), implode(', ', $domains)));
+
+            return 0;
+        }
+
+        $providerTranslations = $provider->read($domains, $locales);
+
+        if ($deleteMissing) {
+            $provider->delete($providerTranslations->diff($localTranslations));
+
+            $io->success(sprintf('Missing translations on "%s" has been deleted (for "%s" locale(s), and "%s" domain(s)).', parse_url($provider, \PHP_URL_SCHEME), implode(', ', $locales), implode(', ', $domains)));
+
+            // Read provider translations again, after missing translations deletion,
+            // to avoid push freshly deleted translations.
+            $providerTranslations = $provider->read($domains, $locales);
+        }
+
+        $translationsToWrite = $localTranslations->diff($providerTranslations);
+
+        if ($force) {
+            $translationsToWrite->addBag($localTranslations->intersect($providerTranslations));
+        }
+
+        $provider->write($translationsToWrite);
+
+        $io->success(sprintf('%s local translations has been sent to "%s" (for "%s" locale(s), and "%s" domain(s)).', $force ? 'All' : 'New', parse_url($provider, \PHP_URL_SCHEME), implode(', ', $locales), implode(', ', $domains)));
+
+        return 0;
+    }
+
+    private function getDomainsFromTranslatorBag(TranslatorBag $translatorBag): array
+    {
+        $domains = [];
+
+        foreach ($translatorBag->getCatalogues() as $catalogue) {
+            $domains += $catalogue->getDomains();
+        }
+
+        return array_unique($domains);
+    }
+}

vendor/symfony/translation/Command/TranslationTrait.php

@@ -0,0 +1,77 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation\Command;
+
+use Symfony\Component\Translation\MessageCatalogue;
+use Symfony\Component\Translation\MessageCatalogueInterface;
+use Symfony\Component\Translation\TranslatorBag;
+
+/**
+ * @internal
+ */
+trait TranslationTrait
+{
+    private function readLocalTranslations(array $locales, array $domains, array $transPaths): TranslatorBag
+    {
+        $bag = new TranslatorBag();
+
+        foreach ($locales as $locale) {
+            $catalogue = new MessageCatalogue($locale);
+            foreach ($transPaths as $path) {
+                $this->reader->read($path, $catalogue);
+            }
+
+            if ($domains) {
+                foreach ($domains as $domain) {
+                    $bag->addCatalogue($this->filterCatalogue($catalogue, $domain));
+                }
+            } else {
+                $bag->addCatalogue($catalogue);
+            }
+        }
+
+        return $bag;
+    }
+
+    private function filterCatalogue(MessageCatalogue $catalogue, string $domain): MessageCatalogue
+    {
+        $filteredCatalogue = new MessageCatalogue($catalogue->getLocale());
+
+        // extract intl-icu messages only
+        $intlDomain = $domain.MessageCatalogueInterface::INTL_DOMAIN_SUFFIX;
+        if ($intlMessages = $catalogue->all($intlDomain)) {
+            $filteredCatalogue->add($intlMessages, $intlDomain);
+        }
+
+        // extract all messages and subtract intl-icu messages
+        if ($messages = array_diff($catalogue->all($domain), $intlMessages)) {
+            $filteredCatalogue->add($messages, $domain);
+        }
+        foreach ($catalogue->getResources() as $resource) {
+            $filteredCatalogue->addResource($resource);
+        }
+
+        if ($metadata = $catalogue->getMetadata('', $intlDomain)) {
+            foreach ($metadata as $k => $v) {
+                $filteredCatalogue->setMetadata($k, $v, $intlDomain);
+            }
+        }
+
+        if ($metadata = $catalogue->getMetadata('', $domain)) {
+            foreach ($metadata as $k => $v) {
+                $filteredCatalogue->setMetadata($k, $v, $domain);
+            }
+        }
+
+        return $filteredCatalogue;
+    }
+}

vendor/symfony/translation/Command/XliffLintCommand.php

@@ -11,13 +11,17 @@
 
 namespace Symfony\Component\Translation\Command;
 
+use Symfony\Component\Console\CI\GithubActionReporter;
 use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Completion\CompletionInput;
+use Symfony\Component\Console\Completion\CompletionSuggestions;
 use Symfony\Component\Console\Exception\RuntimeException;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Translation\Exception\InvalidArgumentException;
 use Symfony\Component\Translation\Util\XliffUtils;
 
 /**
@@ -30,6 +34,7 @@ use Symfony\Component\Translation\Util\XliffUtils;
 class XliffLintCommand extends Command
 {
     protected static $defaultName = 'lint:xliff';
+    protected static $defaultDescription = 'Lint an XLIFF file and outputs encountered errors';
 
     private $format;
     private $displayCorrectFiles;
@@ -52,16 +57,16 @@ class XliffLintCommand extends Command
     protected function configure()
     {
         $this
-            ->setDescription('Lints a XLIFF file and outputs encountered errors')
-            ->addArgument('filename', InputArgument::IS_ARRAY, 'A file or a directory or STDIN')
-            ->addOption('format', null, InputOption::VALUE_REQUIRED, 'The output format', 'txt')
+            ->setDescription(self::$defaultDescription)
+            ->addArgument('filename', InputArgument::IS_ARRAY, 'A file, a directory or "-" for reading from STDIN')
+            ->addOption('format', null, InputOption::VALUE_REQUIRED, 'The output format')
             ->setHelp(<<<EOF
-The <info>%command.name%</info> command lints a XLIFF file and outputs to STDOUT
+The <info>%command.name%</info> command lints an XLIFF file and outputs to STDOUT
 the first encountered syntax error.
 
 You can validates XLIFF contents passed from STDIN:
 
-  <info>cat filename | php %command.full_name%</info>
+  <info>cat filename | php %command.full_name% -</info>
 
 You can also validate the syntax of a file:
 
@@ -81,15 +86,15 @@ EOF
     {
         $io = new SymfonyStyle($input, $output);
         $filenames = (array) $input->getArgument('filename');
-        $this->format = $input->getOption('format');
+        $this->format = $input->getOption('format') ?? (GithubActionReporter::isGithubActionEnvironment() ? 'github' : 'txt');
         $this->displayCorrectFiles = $output->isVerbose();
 
-        if (0 === \count($filenames)) {
-            if (!$stdin = $this->getStdin()) {
-                throw new RuntimeException('Please provide a filename or pipe file content to STDIN.');
-            }
+        if (['-'] === $filenames) {
+            return $this->display($io, [$this->validate(file_get_contents('php://stdin'))]);
+        }
 
-            return $this->display($io, [$this->validate($stdin)]);
+        if (!$filenames) {
+            throw new RuntimeException('Please provide a filename or pipe file content to STDIN.');
         }
 
         $filesInfo = [];
@@ -106,7 +111,7 @@ EOF
         return $this->display($io, $filesInfo);
     }
 
-    private function validate($content, $file = null)
+    private function validate(string $content, string $file = null): array
     {
         $errors = [];
 
@@ -121,12 +126,12 @@ EOF
         $document->loadXML($content);
 
         if (null !== $targetLanguage = $this->getTargetLanguageFromFile($document)) {
-            $normalizedLocale = preg_quote(str_replace('-', '_', $targetLanguage), '/');
+            $normalizedLocalePattern = sprintf('(%s|%s)', preg_quote($targetLanguage, '/'), preg_quote(str_replace('-', '_', $targetLanguage), '/'));
             // strict file names require translation files to be named '____.locale.xlf'
             // otherwise, both '____.locale.xlf' and 'locale.____.xlf' are allowed
             // also, the regexp matching must be case-insensitive, as defined for 'target-language' values
             // http://docs.oasis-open.org/xliff/v1.2/os/xliff-core.html#target-language
-            $expectedFilenamePattern = $this->requireStrictFileNames ? sprintf('/^.*\.(?i:%s)\.xlf/', $normalizedLocale) : sprintf('/^(.*\.(?i:%s)\.xlf|(?i:%s)\..*\.xlf)/', $normalizedLocale, $normalizedLocale);
+            $expectedFilenamePattern = $this->requireStrictFileNames ? sprintf('/^.*\.(?i:%s)\.(?:xlf|xliff)/', $normalizedLocalePattern) : sprintf('/^(?:.*\.(?i:%s)|(?i:%s)\..*)\.(?:xlf|xliff)/', $normalizedLocalePattern, $normalizedLocalePattern);
 
             if (0 === preg_match($expectedFilenamePattern, basename($file))) {
                 $errors[] = [
@@ -158,15 +163,18 @@ EOF
                 return $this->displayTxt($io, $files);
             case 'json':
                 return $this->displayJson($io, $files);
+            case 'github':
+                return $this->displayTxt($io, $files, true);
             default:
                 throw new InvalidArgumentException(sprintf('The format "%s" is not supported.', $this->format));
         }
     }
 
-    private function displayTxt(SymfonyStyle $io, array $filesInfo)
+    private function displayTxt(SymfonyStyle $io, array $filesInfo, bool $errorAsGithubAnnotations = false)
     {
         $countFiles = \count($filesInfo);
         $erroredFiles = 0;
+        $githubReporter = $errorAsGithubAnnotations ? new GithubActionReporter($io) : null;
 
         foreach ($filesInfo as $info) {
             if ($info['valid'] && $this->displayCorrectFiles) {
@@ -174,9 +182,15 @@ EOF
             } elseif (!$info['valid']) {
                 ++$erroredFiles;
                 $io->text('<error> ERROR </error>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
-                $io->listing(array_map(function ($error) {
+                $io->listing(array_map(function ($error) use ($info, $githubReporter) {
                     // general document errors have a '-1' line number
-                    return -1 === $error['line'] ? $error['message'] : sprintf('Line %d, Column %d: %s', $error['line'], $error['column'], $error['message']);
+                    $line = -1 === $error['line'] ? null : $error['line'];
+
+                    if ($githubReporter) {
+                        $githubReporter->error($error['message'], $info['file'], $line, null !== $line ? $error['column'] : null);
+                    }
+
+                    return null === $line ? $error['message'] : sprintf('Line %d, Column %d: %s', $line, $error['column'], $error['message']);
                 }, $info['messages']));
             }
         }
@@ -201,12 +215,12 @@ EOF
             }
         });
 
-        $io->writeln(json_encode($filesInfo, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+        $io->writeln(json_encode($filesInfo, \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES));
 
         return min($errors, 1);
     }
 
-    private function getFiles($fileOrDirectory)
+    private function getFiles(string $fileOrDirectory)
     {
         if (is_file($fileOrDirectory)) {
             yield new \SplFileInfo($fileOrDirectory);
@@ -223,21 +237,7 @@ EOF
         }
     }
 
-    private function getStdin()
-    {
-        if (0 !== ftell(STDIN)) {
-            return;
-        }
-
-        $inputs = '';
-        while (!feof(STDIN)) {
-            $inputs .= fread(STDIN, 1024);
-        }
-
-        return $inputs;
-    }
-
-    private function getDirectoryIterator($directory)
+    private function getDirectoryIterator(string $directory)
     {
         $default = function ($directory) {
             return new \RecursiveIteratorIterator(
@@ -253,7 +253,7 @@ EOF
         return $default($directory);
     }
 
-    private function isReadable($fileOrDirectory)
+    private function isReadable(string $fileOrDirectory)
     {
         $default = function ($fileOrDirectory) {
             return is_readable($fileOrDirectory);
@@ -276,4 +276,11 @@ EOF
 
         return null;
     }
+
+    public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
+    {
+        if ($input->mustSuggestOptionValuesFor('format')) {
+            $suggestions->suggestValues(['txt', 'json', 'github']);
+        }
+    }
 }