the whole shebang

vendor/symfony/finder/Symfony/Component/Finder/Adapter/BsdFindAdapter.php

@@ -0,0 +1,103 @@
+<?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\Finder\Adapter;
+
+use Symfony\Component\Finder\Shell\Shell;
+use Symfony\Component\Finder\Shell\Command;
+use Symfony\Component\Finder\Iterator\SortableIterator;
+use Symfony\Component\Finder\Expression\Expression;
+
+/**
+ * Shell engine implementation using BSD find command.
+ *
+ * @author Jean-François Simon <contact@jfsimon.fr>
+ */
+class BsdFindAdapter extends AbstractFindAdapter
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'bsd_find';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function canBeUsed()
+    {
+        return in_array($this->shell->getType(), array(Shell::TYPE_BSD, Shell::TYPE_DARWIN)) && parent::canBeUsed();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function buildFormatSorting(Command $command, $sort)
+    {
+        switch ($sort) {
+            case SortableIterator::SORT_BY_NAME:
+                $command->ins('sort')->add('| sort');
+
+                return;
+            case SortableIterator::SORT_BY_TYPE:
+                $format = '%HT';
+                break;
+            case SortableIterator::SORT_BY_ACCESSED_TIME:
+                $format = '%a';
+                break;
+            case SortableIterator::SORT_BY_CHANGED_TIME:
+                $format = '%c';
+                break;
+            case SortableIterator::SORT_BY_MODIFIED_TIME:
+                $format = '%m';
+                break;
+            default:
+                throw new \InvalidArgumentException(sprintf('Unknown sort options: %s.', $sort));
+        }
+
+        $command
+            ->add('-print0 | xargs -0 stat -f')
+            ->arg($format.'%t%N')
+            ->add('| sort | cut -f 2');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function buildFindCommand(Command $command, $dir)
+    {
+        parent::buildFindCommand($command, $dir)->addAtIndex('-E', 1);
+
+        return $command;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function buildContentFiltering(Command $command, array $contains, $not = false)
+    {
+        foreach ($contains as $contain) {
+            $expr = Expression::create($contain);
+
+            // todo: avoid forking process for each $pattern by using multiple -e options
+            $command
+                ->add('| grep -v \'^$\'')
+                ->add('| xargs -I{} grep -I')
+                ->add($expr->isCaseSensitive() ? null : '-i')
+                ->add($not ? '-L' : '-l')
+                ->add('-Ee')->arg($expr->renderPattern())
+                ->add('{}')
+            ;
+        }
+    }
+}