1: <?php
  2: 
  3: /*
  4:  * This file is part of the Symfony package.
  5:  *
  6:  * (c) Fabien Potencier <fabien@symfony.com>
  7:  *
  8:  * For the full copyright and license information, please view the LICENSE
  9:  * file that was distributed with this source code.
 10:  */
 11: 
 12: namespace Symfony\Component\Finder\Adapter;
 13: 
 14: use Symfony\Component\Finder\Shell\Shell;
 15: use Symfony\Component\Finder\Shell\Command;
 16: use Symfony\Component\Finder\Iterator\SortableIterator;
 17: use Symfony\Component\Finder\Expression\Expression;
 18: 
 19: /**
 20:  * Shell engine implementation using GNU find command.
 21:  *
 22:  * @author Jean-François Simon <contact@jfsimon.fr>
 23:  */
 24: class GnuFindAdapter extends AbstractFindAdapter
 25: {
 26:     /**
 27:      * {@inheritdoc}
 28:      */
 29:     public function getName()
 30:     {
 31:         return 'gnu_find';
 32:     }
 33: 
 34:     /**
 35:      * {@inheritdoc}
 36:      */
 37:     protected function buildFormatSorting(Command $command, $sort)
 38:     {
 39:         switch ($sort) {
 40:             case SortableIterator::SORT_BY_NAME:
 41:                 $command->ins('sort')->add('| sort');
 42: 
 43:                 return;
 44:             case SortableIterator::SORT_BY_TYPE:
 45:                 $format = '%y';
 46:                 break;
 47:             case SortableIterator::SORT_BY_ACCESSED_TIME:
 48:                 $format = '%A@';
 49:                 break;
 50:             case SortableIterator::SORT_BY_CHANGED_TIME:
 51:                 $format = '%C@';
 52:                 break;
 53:             case SortableIterator::SORT_BY_MODIFIED_TIME:
 54:                 $format = '%T@';
 55:                 break;
 56:             default:
 57:                 throw new \InvalidArgumentException('Unknown sort options: '.$sort.'.');
 58:         }
 59: 
 60:         $command
 61:             ->get('find')
 62:             ->add('-printf')
 63:             ->arg($format.' %h/%f\\n')
 64:             ->add('| sort | cut')
 65:             ->arg('-d ')
 66:             ->arg('-f2-')
 67:         ;
 68:     }
 69: 
 70:     /**
 71:      * {@inheritdoc}
 72:      */
 73:     protected function canBeUsed()
 74:     {
 75:         return $this->shell->getType() === Shell::TYPE_UNIX && parent::canBeUsed();
 76:     }
 77: 
 78:     /**
 79:      * {@inheritdoc}
 80:      */
 81:     protected function buildFindCommand(Command $command, $dir)
 82:     {
 83:       return parent::buildFindCommand($command, $dir)->add('-regextype posix-extended');
 84:     }
 85: 
 86:     /**
 87:      * {@inheritdoc}
 88:      */
 89:     protected function buildContentFiltering(Command $command, array $contains, $not = false)
 90:     {
 91:         foreach ($contains as $contain) {
 92:             $expr = Expression::create($contain);
 93: 
 94:             // todo: avoid forking process for each $pattern by using multiple -e options
 95:             $command
 96:                 ->add('| xargs -I{} -r grep -I')
 97:                 ->add($expr->isCaseSensitive() ? null : '-i')
 98:                 ->add($not ? '-L' : '-l')
 99:                 ->add('-Ee')->arg($expr->renderPattern())
100:                 ->add('{}')
101:             ;
102:         }
103:     }
104: }
105: