Version 1

[yaffs-website] / vendor / symfony / config / FileLocator.php

diff --git a/vendor/symfony/config/FileLocator.php b/vendor/symfony/config/FileLocator.php
new file mode 100644 (file)
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+++ b/vendor/symfony/config/FileLocator.php
@@ -0,0 +1,96 @@
+<?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\Config;
+
+/**
+ * FileLocator uses an array of pre-defined paths to find files.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FileLocator implements FileLocatorInterface
+{
+    protected $paths;
+
+    /**
+     * Constructor.
+     *
+     * @param string|array $paths A path or an array of paths where to look for resources
+     */
+    public function __construct($paths = array())
+    {
+        $this->paths = (array) $paths;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function locate($name, $currentPath = null, $first = true)
+    {
+        if ('' == $name) {
+            throw new \InvalidArgumentException('An empty file name is not valid to be located.');
+        }
+
+        if ($this->isAbsolutePath($name)) {
+            if (!file_exists($name)) {
+                throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $name));
+            }
+
+            return $name;
+        }
+
+        $paths = $this->paths;
+
+        if (null !== $currentPath) {
+            array_unshift($paths, $currentPath);
+        }
+
+        $paths = array_unique($paths);
+        $filepaths = array();
+
+        foreach ($paths as $path) {
+            if (@file_exists($file = $path.DIRECTORY_SEPARATOR.$name)) {
+                if (true === $first) {
+                    return $file;
+                }
+                $filepaths[] = $file;
+            }
+        }
+
+        if (!$filepaths) {
+            throw new \InvalidArgumentException(sprintf('The file "%s" does not exist (in: %s).', $name, implode(', ', $paths)));
+        }
+
+        return $filepaths;
+    }
+
+    /**
+     * Returns whether the file path is an absolute path.
+     *
+     * @param string $file A file path
+     *
+     * @return bool
+     */
+    private function isAbsolutePath($file)
+    {
+        if ($file[0] === '/' || $file[0] === '\\'
+            || (strlen($file) > 3 && ctype_alpha($file[0])
+                && $file[1] === ':'
+                && ($file[2] === '\\' || $file[2] === '/')
+            )
+            || null !== parse_url($file, PHP_URL_SCHEME)
+        ) {
+            return true;
+        }
+
+        return false;
+    }
+}