Файл: symfony-2.7/src/Symfony/Bridge/Twig/Command/LintCommand.php
Строк: 334
<?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 SymfonyBridgeTwigCommand;
if (!defined('JSON_PRETTY_PRINT')) {
define('JSON_PRETTY_PRINT', 128);
}
use SymfonyComponentConsoleCommandCommand;
use SymfonyComponentConsoleInputInputInterface;
use SymfonyComponentConsoleInputInputOption;
use SymfonyComponentConsoleOutputOutputInterface;
use SymfonyComponentFinderFinder;
/**
* Command that will validate your template syntax and output encountered errors.
*
* @author Marc Weistroff <marc.weistroff@sensiolabs.com>
* @author Jérôme Tamarelle <jerome@tamarelle.net>
*/
class LintCommand extends Command
{
private $twig;
/**
* {@inheritdoc}
*/
public function __construct($name = 'twig:lint')
{
parent::__construct($name);
}
/**
* Sets the twig environment
*
* @param Twig_Environment $twig
*/
public function setTwigEnvironment(Twig_Environment $twig)
{
$this->twig = $twig;
}
/**
* @return Twig_Environment $twig
*/
protected function getTwigEnvironment()
{
return $this->twig;
}
protected function configure()
{
$this
->setDescription('Lints a template and outputs encountered errors')
->addOption('format', null, InputOption::VALUE_REQUIRED, 'The output format', 'txt')
->addArgument('filename')
->setHelp(<<<EOF
The <info>%command.name%</info> command lints a template and outputs to STDOUT
the first encountered syntax error.
You can validate the syntax of a file:
<info>php %command.full_name% filename</info>
Or of a whole directory:
<info>php %command.full_name% dirname</info>
<info>php %command.full_name% dirname --format=json</info>
You can also pass the template contents from STDIN:
<info>cat filename | php %command.full_name%</info>
EOF
)
;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$twig = $this->getTwigEnvironment();
if (null === $twig) {
$output->writeln('<error>The Twig environment needs to be set.</error>');
return 1;
}
$filename = $input->getArgument('filename');
if (!$filename) {
if (0 !== ftell(STDIN)) {
throw new RuntimeException("Please provide a filename or pipe template content to STDIN.");
}
$template = '';
while (!feof(STDIN)) {
$template .= fread(STDIN, 1024);
}
return $this->display($input, $output, array($this->validate($twig, $template, uniqid('sf_'))));
}
$filesInfo = array();
foreach ($this->findFiles($filename) as $file) {
$filesInfo[] = $this->validate($twig, file_get_contents($file), $file);
}
return $this->display($input, $output, $filesInfo);
}
protected function findFiles($filename)
{
if (is_file($filename)) {
return array($filename);
} elseif (is_dir($filename)) {
return Finder::create()->files()->in($filename)->name('*.twig');
}
throw new RuntimeException(sprintf('File or directory "%s" is not readable', $filename));
}
private function validate(Twig_Environment $twig, $template, $file)
{
$realLoader = $twig->getLoader();
try {
$temporaryLoader = new Twig_Loader_Array(array((string) $file => $template));
$twig->setLoader($temporaryLoader);
$nodeTree = $twig->parse($twig->tokenize($template, (string) $file));
$twig->compile($nodeTree);
$twig->setLoader($realLoader);
} catch (Twig_Error $e) {
$twig->setLoader($realLoader);
return array('template' => $template, 'file' => $file, 'valid' => false, 'exception' => $e);
}
return array('template' => $template, 'file' => $file, 'valid' => true);
}
private function display(InputInterface $input, OutputInterface $output, $files)
{
switch ($input->getOption('format')) {
case 'txt':
return $this->displayTxt($output, $files);
case 'json':
return $this->displayJson($output, $files);
default:
throw new InvalidArgumentException(sprintf('The format "%s" is not supported.', $input->getOption('format')));
}
}
private function displayTxt(OutputInterface $output, $filesInfo)
{
$errors = 0;
foreach ($filesInfo as $info) {
if ($info['valid'] && $output->isVerbose()) {
$output->writeln('<info>OK</info>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
} elseif (!$info['valid']) {
$errors++;
$this->renderException($output, $info['template'], $info['exception'], $info['file']);
}
}
$output->writeln(sprintf('<comment>%d/%d valid files</comment>', count($filesInfo) - $errors, count($filesInfo)));
return min($errors, 1);
}
private function displayJson(OutputInterface $output, $filesInfo)
{
$errors = 0;
array_walk($filesInfo, function (&$v) use (&$errors) {
$v['file'] = (string) $v['file'];
unset($v['template']);
if (!$v['valid']) {
$v['message'] = $v['exception']->getMessage();
unset($v['exception']);
$errors++;
}
});
$output->writeln(json_encode($filesInfo, JSON_PRETTY_PRINT));
return min($errors, 1);
}
private function renderException(OutputInterface $output, $template, Twig_Error $exception, $file = null)
{
$line = $exception->getTemplateLine();
if ($file) {
$output->writeln(sprintf("<error>KO</error> in %s (line %s)", $file, $line));
} else {
$output->writeln(sprintf("<error>KO</error> (line %s)", $line));
}
foreach ($this->getContext($template, $line) as $no => $code) {
$output->writeln(sprintf(
"%s %-6s %s",
$no == $line ? '<error>>></error>' : ' ',
$no,
$code
));
if ($no == $line) {
$output->writeln(sprintf('<error>>> %s</error> ', $exception->getRawMessage()));
}
}
}
private function getContext($template, $line, $context = 3)
{
$lines = explode("n", $template);
$position = max(0, $line - $context);
$max = min(count($lines), $line - 1 + $context);
$result = array();
while ($position < $max) {
$result[$position + 1] = $lines[$position];
$position++;
}
return $result;
}
}