Update Composer, update everything

vendor/symfony/filesystem/.gitignore

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+vendor/
+composer.lock
+phpunit.xml

vendor/symfony/filesystem/CHANGELOG.md

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+CHANGELOG
+=========
+
+3.4.0
+-----
+
+ * support for passing relative paths to `Filesystem::makePathRelative()` is deprecated and will be removed in 4.0
+
+3.3.0
+-----
+
+ * added `appendToFile()` to append contents to existing files
+
+3.2.0
+-----
+
+ * added `readlink()` as a platform independent method to read links
+
+3.0.0
+-----
+
+ * removed `$mode` argument from `Filesystem::dumpFile()`
+
+2.8.0
+-----
+
+ * added tempnam() a stream aware version of PHP's native tempnam()
+
+2.6.0
+-----
+
+ * added LockHandler
+
+2.3.12
+------
+
+ * deprecated dumpFile() file mode argument.
+
+2.3.0
+-----
+
+ * added the dumpFile() method to atomically write files
+
+2.2.0
+-----
+
+ * added a delete option for the mirror() method
+
+2.1.0
+-----
+
+ * 24eb396 : BC Break : mkdir() function now throws exception in case of failure instead of returning Boolean value
+ * created the component

vendor/symfony/filesystem/Exception/ExceptionInterface.php

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+<?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\Filesystem\Exception;
+
+/**
+ * Exception interface for all exceptions thrown by the component.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ */
+interface ExceptionInterface
+{
+}

vendor/symfony/filesystem/Exception/FileNotFoundException.php

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+<?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\Filesystem\Exception;
+
+/**
+ * Exception class thrown when a file couldn't be found.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Christian Gärtner <christiangaertner.film@googlemail.com>
+ */
+class FileNotFoundException extends IOException
+{
+    public function __construct($message = null, $code = 0, \Exception $previous = null, $path = null)
+    {
+        if (null === $message) {
+            if (null === $path) {
+                $message = 'File could not be found.';
+            } else {
+                $message = sprintf('File "%s" could not be found.', $path);
+            }
+        }
+
+        parent::__construct($message, $code, $previous, $path);
+    }
+}

vendor/symfony/filesystem/Exception/IOException.php

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+<?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\Filesystem\Exception;
+
+/**
+ * Exception class thrown when a filesystem operation failure happens.
+ *
+ * @author Romain Neutron <imprec@gmail.com>
+ * @author Christian Gärtner <christiangaertner.film@googlemail.com>
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class IOException extends \RuntimeException implements IOExceptionInterface
+{
+    private $path;
+
+    public function __construct($message, $code = 0, \Exception $previous = null, $path = null)
+    {
+        $this->path = $path;
+
+        parent::__construct($message, $code, $previous);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPath()
+    {
+        return $this->path;
+    }
+}

vendor/symfony/filesystem/Exception/IOExceptionInterface.php

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+<?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\Filesystem\Exception;
+
+/**
+ * IOException interface for file and input/output stream related exceptions thrown by the component.
+ *
+ * @author Christian Gärtner <christiangaertner.film@googlemail.com>
+ */
+interface IOExceptionInterface extends ExceptionInterface
+{
+    /**
+     * Returns the associated path for the exception.
+     *
+     * @return string The path
+     */
+    public function getPath();
+}

vendor/symfony/filesystem/Filesystem.php

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+<?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\Filesystem;
+
+use Symfony\Component\Filesystem\Exception\FileNotFoundException;
+use Symfony\Component\Filesystem\Exception\IOException;
+
+/**
+ * Provides basic utility to manipulate the file system.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Filesystem
+{
+    private static $lastError;
+
+    /**
+     * Copies a file.
+     *
+     * If the target file is older than the origin file, it's always overwritten.
+     * If the target file is newer, it is overwritten only when the
+     * $overwriteNewerFiles option is set to true.
+     *
+     * @param string $originFile          The original filename
+     * @param string $targetFile          The target filename
+     * @param bool   $overwriteNewerFiles If true, target files newer than origin files are overwritten
+     *
+     * @throws FileNotFoundException When originFile doesn't exist
+     * @throws IOException           When copy fails
+     */
+    public function copy($originFile, $targetFile, $overwriteNewerFiles = false)
+    {
+        $originIsLocal = stream_is_local($originFile) || 0 === stripos($originFile, 'file://');
+        if ($originIsLocal && !is_file($originFile)) {
+            throw new FileNotFoundException(sprintf('Failed to copy "%s" because file does not exist.', $originFile), 0, null, $originFile);
+        }
+
+        $this->mkdir(\dirname($targetFile));
+
+        $doCopy = true;
+        if (!$overwriteNewerFiles && null === parse_url($originFile, PHP_URL_HOST) && is_file($targetFile)) {
+            $doCopy = filemtime($originFile) > filemtime($targetFile);
+        }
+
+        if ($doCopy) {
+            // https://bugs.php.net/bug.php?id=64634
+            if (false === $source = @fopen($originFile, 'r')) {
+                throw new IOException(sprintf('Failed to copy "%s" to "%s" because source file could not be opened for reading.', $originFile, $targetFile), 0, null, $originFile);
+            }
+
+            // Stream context created to allow files overwrite when using FTP stream wrapper - disabled by default
+            if (false === $target = @fopen($targetFile, 'w', null, stream_context_create(array('ftp' => array('overwrite' => true))))) {
+                throw new IOException(sprintf('Failed to copy "%s" to "%s" because target file could not be opened for writing.', $originFile, $targetFile), 0, null, $originFile);
+            }
+
+            $bytesCopied = stream_copy_to_stream($source, $target);
+            fclose($source);
+            fclose($target);
+            unset($source, $target);
+
+            if (!is_file($targetFile)) {
+                throw new IOException(sprintf('Failed to copy "%s" to "%s".', $originFile, $targetFile), 0, null, $originFile);
+            }
+
+            if ($originIsLocal) {
+                // Like `cp`, preserve executable permission bits
+                @chmod($targetFile, fileperms($targetFile) | (fileperms($originFile) & 0111));
+
+                if ($bytesCopied !== $bytesOrigin = filesize($originFile)) {
+                    throw new IOException(sprintf('Failed to copy the whole content of "%s" to "%s" (%g of %g bytes copied).', $originFile, $targetFile, $bytesCopied, $bytesOrigin), 0, null, $originFile);
+                }
+            }
+        }
+    }
+
+    /**
+     * Creates a directory recursively.
+     *
+     * @param string|iterable $dirs The directory path
+     * @param int             $mode The directory mode
+     *
+     * @throws IOException On any directory creation failure
+     */
+    public function mkdir($dirs, $mode = 0777)
+    {
+        foreach ($this->toIterable($dirs) as $dir) {
+            if (is_dir($dir)) {
+                continue;
+            }
+
+            if (!self::box('mkdir', $dir, $mode, true)) {
+                if (!is_dir($dir)) {
+                    // The directory was not created by a concurrent process. Let's throw an exception with a developer friendly error message if we have one
+                    if (self::$lastError) {
+                        throw new IOException(sprintf('Failed to create "%s": %s.', $dir, self::$lastError), 0, null, $dir);
+                    }
+                    throw new IOException(sprintf('Failed to create "%s"', $dir), 0, null, $dir);
+                }
+            }
+        }
+    }
+
+    /**
+     * Checks the existence of files or directories.
+     *
+     * @param string|iterable $files A filename, an array of files, or a \Traversable instance to check
+     *
+     * @return bool true if the file exists, false otherwise
+     */
+    public function exists($files)
+    {
+        $maxPathLength = PHP_MAXPATHLEN - 2;
+
+        foreach ($this->toIterable($files) as $file) {
+            if (\strlen($file) > $maxPathLength) {
+                throw new IOException(sprintf('Could not check if file exist because path length exceeds %d characters.', $maxPathLength), 0, null, $file);
+            }
+
+            if (!file_exists($file)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Sets access and modification time of file.
+     *
+     * @param string|iterable $files A filename, an array of files, or a \Traversable instance to create
+     * @param int             $time  The touch time as a Unix timestamp
+     * @param int             $atime The access time as a Unix timestamp
+     *
+     * @throws IOException When touch fails
+     */
+    public function touch($files, $time = null, $atime = null)
+    {
+        foreach ($this->toIterable($files) as $file) {
+            $touch = $time ? @touch($file, $time, $atime) : @touch($file);
+            if (true !== $touch) {
+                throw new IOException(sprintf('Failed to touch "%s".', $file), 0, null, $file);
+            }
+        }
+    }
+
+    /**
+     * Removes files or directories.
+     *
+     * @param string|iterable $files A filename, an array of files, or a \Traversable instance to remove
+     *
+     * @throws IOException When removal fails
+     */
+    public function remove($files)
+    {
+        if ($files instanceof \Traversable) {
+            $files = iterator_to_array($files, false);
+        } elseif (!\is_array($files)) {
+            $files = array($files);
+        }
+        $files = array_reverse($files);
+        foreach ($files as $file) {
+            if (is_link($file)) {
+                // See https://bugs.php.net/52176
+                if (!(self::box('unlink', $file) || '\\' !== \DIRECTORY_SEPARATOR || self::box('rmdir', $file)) && file_exists($file)) {
+                    throw new IOException(sprintf('Failed to remove symlink "%s": %s.', $file, self::$lastError));
+                }
+            } elseif (is_dir($file)) {
+                $this->remove(new \FilesystemIterator($file, \FilesystemIterator::CURRENT_AS_PATHNAME | \FilesystemIterator::SKIP_DOTS));
+
+                if (!self::box('rmdir', $file) && file_exists($file)) {
+                    throw new IOException(sprintf('Failed to remove directory "%s": %s.', $file, self::$lastError));
+                }
+            } elseif (!self::box('unlink', $file) && file_exists($file)) {
+                throw new IOException(sprintf('Failed to remove file "%s": %s.', $file, self::$lastError));
+            }
+        }
+    }
+
+    /**
+     * Change mode for an array of files or directories.
+     *
+     * @param string|iterable $files     A filename, an array of files, or a \Traversable instance to change mode
+     * @param int             $mode      The new mode (octal)
+     * @param int             $umask     The mode mask (octal)
+     * @param bool            $recursive Whether change the mod recursively or not
+     *
+     * @throws IOException When the change fail
+     */
+    public function chmod($files, $mode, $umask = 0000, $recursive = false)
+    {
+        foreach ($this->toIterable($files) as $file) {
+            if (true !== @chmod($file, $mode & ~$umask)) {
+                throw new IOException(sprintf('Failed to chmod file "%s".', $file), 0, null, $file);
+            }
+            if ($recursive && is_dir($file) && !is_link($file)) {
+                $this->chmod(new \FilesystemIterator($file), $mode, $umask, true);
+            }
+        }
+    }
+
+    /**
+     * Change the owner of an array of files or directories.
+     *
+     * @param string|iterable $files     A filename, an array of files, or a \Traversable instance to change owner
+     * @param string          $user      The new owner user name
+     * @param bool            $recursive Whether change the owner recursively or not
+     *
+     * @throws IOException When the change fail
+     */
+    public function chown($files, $user, $recursive = false)
+    {
+        foreach ($this->toIterable($files) as $file) {
+            if ($recursive && is_dir($file) && !is_link($file)) {
+                $this->chown(new \FilesystemIterator($file), $user, true);
+            }
+            if (is_link($file) && \function_exists('lchown')) {
+                if (true !== @lchown($file, $user)) {
+                    throw new IOException(sprintf('Failed to chown file "%s".', $file), 0, null, $file);
+                }
+            } else {
+                if (true !== @chown($file, $user)) {
+                    throw new IOException(sprintf('Failed to chown file "%s".', $file), 0, null, $file);
+                }
+            }
+        }
+    }
+
+    /**
+     * Change the group of an array of files or directories.
+     *
+     * @param string|iterable $files     A filename, an array of files, or a \Traversable instance to change group
+     * @param string          $group     The group name
+     * @param bool            $recursive Whether change the group recursively or not
+     *
+     * @throws IOException When the change fail
+     */
+    public function chgrp($files, $group, $recursive = false)
+    {
+        foreach ($this->toIterable($files) as $file) {
+            if ($recursive && is_dir($file) && !is_link($file)) {
+                $this->chgrp(new \FilesystemIterator($file), $group, true);
+            }
+            if (is_link($file) && \function_exists('lchgrp')) {
+                if (true !== @lchgrp($file, $group) || (\defined('HHVM_VERSION') && !posix_getgrnam($group))) {
+                    throw new IOException(sprintf('Failed to chgrp file "%s".', $file), 0, null, $file);
+                }
+            } else {
+                if (true !== @chgrp($file, $group)) {
+                    throw new IOException(sprintf('Failed to chgrp file "%s".', $file), 0, null, $file);
+                }
+            }
+        }
+    }
+
+    /**
+     * Renames a file or a directory.
+     *
+     * @param string $origin    The origin filename or directory
+     * @param string $target    The new filename or directory
+     * @param bool   $overwrite Whether to overwrite the target if it already exists
+     *
+     * @throws IOException When target file or directory already exists
+     * @throws IOException When origin cannot be renamed
+     */
+    public function rename($origin, $target, $overwrite = false)
+    {
+        // we check that target does not exist
+        if (!$overwrite && $this->isReadable($target)) {
+            throw new IOException(sprintf('Cannot rename because the target "%s" already exists.', $target), 0, null, $target);
+        }
+
+        if (true !== @rename($origin, $target)) {
+            if (is_dir($origin)) {
+                // See https://bugs.php.net/bug.php?id=54097 & http://php.net/manual/en/function.rename.php#113943
+                $this->mirror($origin, $target, null, array('override' => $overwrite, 'delete' => $overwrite));
+                $this->remove($origin);
+
+                return;
+            }
+            throw new IOException(sprintf('Cannot rename "%s" to "%s".', $origin, $target), 0, null, $target);
+        }
+    }
+
+    /**
+     * Tells whether a file exists and is readable.
+     *
+     * @param string $filename Path to the file
+     *
+     * @return bool
+     *
+     * @throws IOException When windows path is longer than 258 characters
+     */
+    private function isReadable($filename)
+    {
+        $maxPathLength = PHP_MAXPATHLEN - 2;
+
+        if (\strlen($filename) > $maxPathLength) {
+            throw new IOException(sprintf('Could not check if file is readable because path length exceeds %d characters.', $maxPathLength), 0, null, $filename);
+        }
+
+        return is_readable($filename);
+    }
+
+    /**
+     * Creates a symbolic link or copy a directory.
+     *
+     * @param string $originDir     The origin directory path
+     * @param string $targetDir     The symbolic link name
+     * @param bool   $copyOnWindows Whether to copy files if on Windows
+     *
+     * @throws IOException When symlink fails
+     */
+    public function symlink($originDir, $targetDir, $copyOnWindows = false)
+    {
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $originDir = strtr($originDir, '/', '\\');
+            $targetDir = strtr($targetDir, '/', '\\');
+
+            if ($copyOnWindows) {
+                $this->mirror($originDir, $targetDir);
+
+                return;
+            }
+        }
+
+        $this->mkdir(\dirname($targetDir));
+
+        if (is_link($targetDir)) {
+            if (readlink($targetDir) === $originDir) {
+                return;
+            }
+            $this->remove($targetDir);
+        }
+
+        if (!self::box('symlink', $originDir, $targetDir)) {
+            $this->linkException($originDir, $targetDir, 'symbolic');
+        }
+    }
+
+    /**
+     * Creates a hard link, or several hard links to a file.
+     *
+     * @param string          $originFile  The original file
+     * @param string|string[] $targetFiles The target file(s)
+     *
+     * @throws FileNotFoundException When original file is missing or not a file
+     * @throws IOException           When link fails, including if link already exists
+     */
+    public function hardlink($originFile, $targetFiles)
+    {
+        if (!$this->exists($originFile)) {
+            throw new FileNotFoundException(null, 0, null, $originFile);
+        }
+
+        if (!is_file($originFile)) {
+            throw new FileNotFoundException(sprintf('Origin file "%s" is not a file', $originFile));
+        }
+
+        foreach ($this->toIterable($targetFiles) as $targetFile) {
+            if (is_file($targetFile)) {
+                if (fileinode($originFile) === fileinode($targetFile)) {
+                    continue;
+                }
+                $this->remove($targetFile);
+            }
+
+            if (!self::box('link', $originFile, $targetFile)) {
+                $this->linkException($originFile, $targetFile, 'hard');
+            }
+        }
+    }
+
+    /**
+     * @param string $origin
+     * @param string $target
+     * @param string $linkType Name of the link type, typically 'symbolic' or 'hard'
+     */
+    private function linkException($origin, $target, $linkType)
+    {
+        if (self::$lastError) {
+            if ('\\' === \DIRECTORY_SEPARATOR && false !== strpos(self::$lastError, 'error code(1314)')) {
+                throw new IOException(sprintf('Unable to create %s link due to error code 1314: \'A required privilege is not held by the client\'. Do you have the required Administrator-rights?', $linkType), 0, null, $target);
+            }
+        }
+        throw new IOException(sprintf('Failed to create %s link from "%s" to "%s".', $linkType, $origin, $target), 0, null, $target);
+    }
+
+    /**
+     * Resolves links in paths.
+     *
+     * With $canonicalize = false (default)
+     *      - if $path does not exist or is not a link, returns null
+     *      - if $path is a link, returns the next direct target of the link without considering the existence of the target
+     *
+     * With $canonicalize = true
+     *      - if $path does not exist, returns null
+     *      - if $path exists, returns its absolute fully resolved final version
+     *
+     * @param string $path         A filesystem path
+     * @param bool   $canonicalize Whether or not to return a canonicalized path
+     *
+     * @return string|null
+     */
+    public function readlink($path, $canonicalize = false)
+    {
+        if (!$canonicalize && !is_link($path)) {
+            return;
+        }
+
+        if ($canonicalize) {
+            if (!$this->exists($path)) {
+                return;
+            }
+
+            if ('\\' === \DIRECTORY_SEPARATOR) {
+                $path = readlink($path);
+            }
+
+            return realpath($path);
+        }
+
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            return realpath($path);
+        }
+
+        return readlink($path);
+    }
+
+    /**
+     * Given an existing path, convert it to a path relative to a given starting path.
+     *
+     * @param string $endPath   Absolute path of target
+     * @param string $startPath Absolute path where traversal begins
+     *
+     * @return string Path of target relative to starting path
+     */
+    public function makePathRelative($endPath, $startPath)
+    {
+        if (!$this->isAbsolutePath($endPath) || !$this->isAbsolutePath($startPath)) {
+            @trigger_error(sprintf('Support for passing relative paths to %s() is deprecated since Symfony 3.4 and will be removed in 4.0.', __METHOD__), E_USER_DEPRECATED);
+        }
+
+        // Normalize separators on Windows
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $endPath = str_replace('\\', '/', $endPath);
+            $startPath = str_replace('\\', '/', $startPath);
+        }
+
+        $stripDriveLetter = function ($path) {
+            if (\strlen($path) > 2 && ':' === $path[1] && '/' === $path[2] && ctype_alpha($path[0])) {
+                return substr($path, 2);
+            }
+
+            return $path;
+        };
+
+        $endPath = $stripDriveLetter($endPath);
+        $startPath = $stripDriveLetter($startPath);
+
+        // Split the paths into arrays
+        $startPathArr = explode('/', trim($startPath, '/'));
+        $endPathArr = explode('/', trim($endPath, '/'));
+
+        $normalizePathArray = function ($pathSegments, $absolute) {
+            $result = array();
+
+            foreach ($pathSegments as $segment) {
+                if ('..' === $segment && ($absolute || \count($result))) {
+                    array_pop($result);
+                } elseif ('.' !== $segment) {
+                    $result[] = $segment;
+                }
+            }
+
+            return $result;
+        };
+
+        $startPathArr = $normalizePathArray($startPathArr, static::isAbsolutePath($startPath));
+        $endPathArr = $normalizePathArray($endPathArr, static::isAbsolutePath($endPath));
+
+        // Find for which directory the common path stops
+        $index = 0;
+        while (isset($startPathArr[$index]) && isset($endPathArr[$index]) && $startPathArr[$index] === $endPathArr[$index]) {
+            ++$index;
+        }
+
+        // Determine how deep the start path is relative to the common path (ie, "web/bundles" = 2 levels)
+        if (1 === \count($startPathArr) && '' === $startPathArr[0]) {
+            $depth = 0;
+        } else {
+            $depth = \count($startPathArr) - $index;
+        }
+
+        // Repeated "../" for each level need to reach the common path
+        $traverser = str_repeat('../', $depth);
+
+        $endPathRemainder = implode('/', \array_slice($endPathArr, $index));
+
+        // Construct $endPath from traversing to the common path, then to the remaining $endPath
+        $relativePath = $traverser.('' !== $endPathRemainder ? $endPathRemainder.'/' : '');
+
+        return '' === $relativePath ? './' : $relativePath;
+    }
+
+    /**
+     * Mirrors a directory to another.
+     *
+     * Copies files and directories from the origin directory into the target directory. By default:
+     *
+     *  - existing files in the target directory will be overwritten, except if they are newer (see the `override` option)
+     *  - files in the target directory that do not exist in the source directory will not be deleted (see the `delete` option)
+     *
+     * @param string       $originDir The origin directory
+     * @param string       $targetDir The target directory
+     * @param \Traversable $iterator  Iterator that filters which files and directories to copy
+     * @param array        $options   An array of boolean options
+     *                                Valid options are:
+     *                                - $options['override'] If true, target files newer than origin files are overwritten (see copy(), defaults to false)
+     *                                - $options['copy_on_windows'] Whether to copy files instead of links on Windows (see symlink(), defaults to false)
+     *                                - $options['delete'] Whether to delete files that are not in the source directory (defaults to false)
+     *
+     * @throws IOException When file type is unknown
+     */
+    public function mirror($originDir, $targetDir, \Traversable $iterator = null, $options = array())
+    {
+        $targetDir = rtrim($targetDir, '/\\');
+        $originDir = rtrim($originDir, '/\\');
+        $originDirLen = \strlen($originDir);
+
+        // Iterate in destination folder to remove obsolete entries
+        if ($this->exists($targetDir) && isset($options['delete']) && $options['delete']) {
+            $deleteIterator = $iterator;
+            if (null === $deleteIterator) {
+                $flags = \FilesystemIterator::SKIP_DOTS;
+                $deleteIterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($targetDir, $flags), \RecursiveIteratorIterator::CHILD_FIRST);
+            }
+            $targetDirLen = \strlen($targetDir);
+            foreach ($deleteIterator as $file) {
+                $origin = $originDir.substr($file->getPathname(), $targetDirLen);
+                if (!$this->exists($origin)) {
+                    $this->remove($file);
+                }
+            }
+        }
+
+        $copyOnWindows = false;
+        if (isset($options['copy_on_windows'])) {
+            $copyOnWindows = $options['copy_on_windows'];
+        }
+
+        if (null === $iterator) {
+            $flags = $copyOnWindows ? \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS : \FilesystemIterator::SKIP_DOTS;
+            $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($originDir, $flags), \RecursiveIteratorIterator::SELF_FIRST);
+        }
+
+        if ($this->exists($originDir)) {
+            $this->mkdir($targetDir);
+        }
+
+        foreach ($iterator as $file) {
+            $target = $targetDir.substr($file->getPathname(), $originDirLen);
+
+            if ($copyOnWindows) {
+                if (is_file($file)) {
+                    $this->copy($file, $target, isset($options['override']) ? $options['override'] : false);
+                } elseif (is_dir($file)) {
+                    $this->mkdir($target);
+                } else {
+                    throw new IOException(sprintf('Unable to guess "%s" file type.', $file), 0, null, $file);
+                }
+            } else {
+                if (is_link($file)) {
+                    $this->symlink($file->getLinkTarget(), $target);
+                } elseif (is_dir($file)) {
+                    $this->mkdir($target);
+                } elseif (is_file($file)) {
+                    $this->copy($file, $target, isset($options['override']) ? $options['override'] : false);
+                } else {
+                    throw new IOException(sprintf('Unable to guess "%s" file type.', $file), 0, null, $file);
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns whether the file path is an absolute path.
+     *
+     * @param string $file A file path
+     *
+     * @return bool
+     */
+    public function isAbsolutePath($file)
+    {
+        return strspn($file, '/\\', 0, 1)
+            || (\strlen($file) > 3 && ctype_alpha($file[0])
+                && ':' === $file[1]
+                && strspn($file, '/\\', 2, 1)
+            )
+            || null !== parse_url($file, PHP_URL_SCHEME)
+        ;
+    }
+
+    /**
+     * Creates a temporary file with support for custom stream wrappers.
+     *
+     * @param string $dir    The directory where the temporary filename will be created
+     * @param string $prefix The prefix of the generated temporary filename
+     *                       Note: Windows uses only the first three characters of prefix
+     *
+     * @return string The new temporary filename (with path), or throw an exception on failure
+     */
+    public function tempnam($dir, $prefix)
+    {
+        list($scheme, $hierarchy) = $this->getSchemeAndHierarchy($dir);
+
+        // If no scheme or scheme is "file" or "gs" (Google Cloud) create temp file in local filesystem
+        if (null === $scheme || 'file' === $scheme || 'gs' === $scheme) {
+            $tmpFile = @tempnam($hierarchy, $prefix);
+
+            // If tempnam failed or no scheme return the filename otherwise prepend the scheme
+            if (false !== $tmpFile) {
+                if (null !== $scheme && 'gs' !== $scheme) {
+                    return $scheme.'://'.$tmpFile;
+                }
+
+                return $tmpFile;
+            }
+
+            throw new IOException('A temporary file could not be created.');
+        }
+
+        // Loop until we create a valid temp file or have reached 10 attempts
+        for ($i = 0; $i < 10; ++$i) {
+            // Create a unique filename
+            $tmpFile = $dir.'/'.$prefix.uniqid(mt_rand(), true);
+
+            // Use fopen instead of file_exists as some streams do not support stat
+            // Use mode 'x+' to atomically check existence and create to avoid a TOCTOU vulnerability
+            $handle = @fopen($tmpFile, 'x+');
+
+            // If unsuccessful restart the loop
+            if (false === $handle) {
+                continue;
+            }
+
+            // Close the file if it was successfully opened
+            @fclose($handle);
+
+            return $tmpFile;
+        }
+
+        throw new IOException('A temporary file could not be created.');
+    }
+
+    /**
+     * Atomically dumps content into a file.
+     *
+     * @param string $filename The file to be written to
+     * @param string $content  The data to write into the file
+     *
+     * @throws IOException if the file cannot be written to
+     */
+    public function dumpFile($filename, $content)
+    {
+        $dir = \dirname($filename);
+
+        if (!is_dir($dir)) {
+            $this->mkdir($dir);
+        }
+
+        if (!is_writable($dir)) {
+            throw new IOException(sprintf('Unable to write to the "%s" directory.', $dir), 0, null, $dir);
+        }
+
+        // Will create a temp file with 0600 access rights
+        // when the filesystem supports chmod.
+        $tmpFile = $this->tempnam($dir, basename($filename));
+
+        if (false === @file_put_contents($tmpFile, $content)) {
+            throw new IOException(sprintf('Failed to write file "%s".', $filename), 0, null, $filename);
+        }
+
+        @chmod($tmpFile, file_exists($filename) ? fileperms($filename) : 0666 & ~umask());
+
+        $this->rename($tmpFile, $filename, true);
+    }
+
+    /**
+     * Appends content to an existing file.
+     *
+     * @param string $filename The file to which to append content
+     * @param string $content  The content to append
+     *
+     * @throws IOException If the file is not writable
+     */
+    public function appendToFile($filename, $content)
+    {
+        $dir = \dirname($filename);
+
+        if (!is_dir($dir)) {
+            $this->mkdir($dir);
+        }
+
+        if (!is_writable($dir)) {
+            throw new IOException(sprintf('Unable to write to the "%s" directory.', $dir), 0, null, $dir);
+        }
+
+        if (false === @file_put_contents($filename, $content, FILE_APPEND)) {
+            throw new IOException(sprintf('Failed to write file "%s".', $filename), 0, null, $filename);
+        }
+    }
+
+    /**
+     * @param mixed $files
+     *
+     * @return array|\Traversable
+     */
+    private function toIterable($files)
+    {
+        return \is_array($files) || $files instanceof \Traversable ? $files : array($files);
+    }
+
+    /**
+     * Gets a 2-tuple of scheme (may be null) and hierarchical part of a filename (e.g. file:///tmp -> array(file, tmp)).
+     *
+     * @param string $filename The filename to be parsed
+     *
+     * @return array The filename scheme and hierarchical part
+     */
+    private function getSchemeAndHierarchy($filename)
+    {
+        $components = explode('://', $filename, 2);
+
+        return 2 === \count($components) ? array($components[0], $components[1]) : array(null, $components[0]);
+    }
+
+    private static function box($func)
+    {
+        self::$lastError = null;
+        \set_error_handler(__CLASS__.'::handleError');
+        try {
+            $result = \call_user_func_array($func, \array_slice(\func_get_args(), 1));
+            \restore_error_handler();
+
+            return $result;
+        } catch (\Throwable $e) {
+        } catch (\Exception $e) {
+        }
+        \restore_error_handler();
+
+        throw $e;
+    }
+
+    /**
+     * @internal
+     */
+    public static function handleError($type, $msg)
+    {
+        self::$lastError = $msg;
+    }
+}

vendor/symfony/filesystem/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2004-2018 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/symfony/filesystem/LockHandler.php

@@ -0,0 +1,121 @@
+<?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\Filesystem;
+
+use Symfony\Component\Filesystem\Exception\IOException;
+use Symfony\Component\Lock\Store\FlockStore;
+use Symfony\Component\Lock\Store\SemaphoreStore;
+
+@trigger_error(sprintf('The %s class is deprecated since Symfony 3.4 and will be removed in 4.0. Use %s or %s instead.', LockHandler::class, SemaphoreStore::class, FlockStore::class), E_USER_DEPRECATED);
+
+/**
+ * LockHandler class provides a simple abstraction to lock anything by means of
+ * a file lock.
+ *
+ * A locked file is created based on the lock name when calling lock(). Other
+ * lock handlers will not be able to lock the same name until it is released
+ * (explicitly by calling release() or implicitly when the instance holding the
+ * lock is destroyed).
+ *
+ * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ * @author Romain Neutron <imprec@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @deprecated since version 3.4, to be removed in 4.0. Use Symfony\Component\Lock\Store\SemaphoreStore or Symfony\Component\Lock\Store\FlockStore instead.
+ */
+class LockHandler
+{
+    private $file;
+    private $handle;
+
+    /**
+     * @param string      $name     The lock name
+     * @param string|null $lockPath The directory to store the lock. Default values will use temporary directory
+     *
+     * @throws IOException If the lock directory could not be created or is not writable
+     */
+    public function __construct($name, $lockPath = null)
+    {
+        $lockPath = $lockPath ?: sys_get_temp_dir();
+
+        if (!is_dir($lockPath)) {
+            $fs = new Filesystem();
+            $fs->mkdir($lockPath);
+        }
+
+        if (!is_writable($lockPath)) {
+            throw new IOException(sprintf('The directory "%s" is not writable.', $lockPath), 0, null, $lockPath);
+        }
+
+        $this->file = sprintf('%s/sf.%s.%s.lock', $lockPath, preg_replace('/[^a-z0-9\._-]+/i', '-', $name), hash('sha256', $name));
+    }
+
+    /**
+     * Lock the resource.
+     *
+     * @param bool $blocking Wait until the lock is released
+     *
+     * @return bool Returns true if the lock was acquired, false otherwise
+     *
+     * @throws IOException If the lock file could not be created or opened
+     */
+    public function lock($blocking = false)
+    {
+        if ($this->handle) {
+            return true;
+        }
+
+        $error = null;
+
+        // Silence error reporting
+        set_error_handler(function ($errno, $msg) use (&$error) {
+            $error = $msg;
+        });
+
+        if (!$this->handle = fopen($this->file, 'r+') ?: fopen($this->file, 'r')) {
+            if ($this->handle = fopen($this->file, 'x')) {
+                chmod($this->file, 0666);
+            } elseif (!$this->handle = fopen($this->file, 'r+') ?: fopen($this->file, 'r')) {
+                usleep(100); // Give some time for chmod() to complete
+                $this->handle = fopen($this->file, 'r+') ?: fopen($this->file, 'r');
+            }
+        }
+        restore_error_handler();
+
+        if (!$this->handle) {
+            throw new IOException($error, 0, null, $this->file);
+        }
+
+        // On Windows, even if PHP doc says the contrary, LOCK_NB works, see
+        // https://bugs.php.net/54129
+        if (!flock($this->handle, LOCK_EX | ($blocking ? 0 : LOCK_NB))) {
+            fclose($this->handle);
+            $this->handle = null;
+
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Release the resource.
+     */
+    public function release()
+    {
+        if ($this->handle) {
+            flock($this->handle, LOCK_UN | LOCK_NB);
+            fclose($this->handle);
+            $this->handle = null;
+        }
+    }
+}

vendor/symfony/filesystem/README.md

@@ -0,0 +1,13 @@
+Filesystem Component
+====================
+
+The Filesystem component provides basic utilities for the filesystem.
+
+Resources
+---------
+
+  * [Documentation](https://symfony.com/doc/current/components/filesystem/index.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)

vendor/symfony/filesystem/Tests/ExceptionTest.php

@@ -0,0 +1,47 @@
+<?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\Filesystem\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Filesystem\Exception\FileNotFoundException;
+use Symfony\Component\Filesystem\Exception\IOException;
+
+/**
+ * Test class for Filesystem.
+ */
+class ExceptionTest extends TestCase
+{
+    public function testGetPath()
+    {
+        $e = new IOException('', 0, null, '/foo');
+        $this->assertEquals('/foo', $e->getPath(), 'The pass should be returned.');
+    }
+
+    public function testGeneratedMessage()
+    {
+        $e = new FileNotFoundException(null, 0, null, '/foo');
+        $this->assertEquals('/foo', $e->getPath());
+        $this->assertEquals('File "/foo" could not be found.', $e->getMessage(), 'A message should be generated.');
+    }
+
+    public function testGeneratedMessageWithoutPath()
+    {
+        $e = new FileNotFoundException();
+        $this->assertEquals('File could not be found.', $e->getMessage(), 'A message should be generated.');
+    }
+
+    public function testCustomMessage()
+    {
+        $e = new FileNotFoundException('bar', 0, null, '/foo');
+        $this->assertEquals('bar', $e->getMessage(), 'A custom message should be possible still.');
+    }
+}

vendor/symfony/filesystem/Tests/FilesystemTestCase.php

@@ -0,0 +1,166 @@
+<?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\Filesystem\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Filesystem\Filesystem;
+
+class FilesystemTestCase extends TestCase
+{
+    private $umask;
+
+    protected $longPathNamesWindows = array();
+
+    /**
+     * @var \Symfony\Component\Filesystem\Filesystem
+     */
+    protected $filesystem = null;
+
+    /**
+     * @var string
+     */
+    protected $workspace = null;
+
+    /**
+     * @var bool|null Flag for hard links on Windows
+     */
+    private static $linkOnWindows = null;
+
+    /**
+     * @var bool|null Flag for symbolic links on Windows
+     */
+    private static $symlinkOnWindows = null;
+
+    public static function setUpBeforeClass()
+    {
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            self::$linkOnWindows = true;
+            $originFile = tempnam(sys_get_temp_dir(), 'li');
+            $targetFile = tempnam(sys_get_temp_dir(), 'li');
+            if (true !== @link($originFile, $targetFile)) {
+                $report = error_get_last();
+                if (\is_array($report) && false !== strpos($report['message'], 'error code(1314)')) {
+                    self::$linkOnWindows = false;
+                }
+            } else {
+                @unlink($targetFile);
+            }
+
+            self::$symlinkOnWindows = true;
+            $originDir = tempnam(sys_get_temp_dir(), 'sl');
+            $targetDir = tempnam(sys_get_temp_dir(), 'sl');
+            if (true !== @symlink($originDir, $targetDir)) {
+                $report = error_get_last();
+                if (\is_array($report) && false !== strpos($report['message'], 'error code(1314)')) {
+                    self::$symlinkOnWindows = false;
+                }
+            } else {
+                @unlink($targetDir);
+            }
+        }
+    }
+
+    protected function setUp()
+    {
+        $this->umask = umask(0);
+        $this->filesystem = new Filesystem();
+        $this->workspace = sys_get_temp_dir().'/'.microtime(true).'.'.mt_rand();
+        mkdir($this->workspace, 0777, true);
+        $this->workspace = realpath($this->workspace);
+    }
+
+    protected function tearDown()
+    {
+        if (!empty($this->longPathNamesWindows)) {
+            foreach ($this->longPathNamesWindows as $path) {
+                exec('DEL '.$path);
+            }
+            $this->longPathNamesWindows = array();
+        }
+
+        $this->filesystem->remove($this->workspace);
+        umask($this->umask);
+    }
+
+    /**
+     * @param int    $expectedFilePerms Expected file permissions as three digits (i.e. 755)
+     * @param string $filePath
+     */
+    protected function assertFilePermissions($expectedFilePerms, $filePath)
+    {
+        $actualFilePerms = (int) substr(sprintf('%o', fileperms($filePath)), -3);
+        $this->assertEquals(
+            $expectedFilePerms,
+            $actualFilePerms,
+            sprintf('File permissions for %s must be %s. Actual %s', $filePath, $expectedFilePerms, $actualFilePerms)
+        );
+    }
+
+    protected function getFileOwner($filepath)
+    {
+        $this->markAsSkippedIfPosixIsMissing();
+
+        $infos = stat($filepath);
+        if ($datas = posix_getpwuid($infos['uid'])) {
+            return $datas['name'];
+        }
+    }
+
+    protected function getFileGroup($filepath)
+    {
+        $this->markAsSkippedIfPosixIsMissing();
+
+        $infos = stat($filepath);
+        if ($datas = posix_getgrgid($infos['gid'])) {
+            return $datas['name'];
+        }
+
+        $this->markTestSkipped('Unable to retrieve file group name');
+    }
+
+    protected function markAsSkippedIfLinkIsMissing()
+    {
+        if (!\function_exists('link')) {
+            $this->markTestSkipped('link is not supported');
+        }
+
+        if ('\\' === \DIRECTORY_SEPARATOR && false === self::$linkOnWindows) {
+            $this->markTestSkipped('link requires "Create hard links" privilege on windows');
+        }
+    }
+
+    protected function markAsSkippedIfSymlinkIsMissing($relative = false)
+    {
+        if ('\\' === \DIRECTORY_SEPARATOR && false === self::$symlinkOnWindows) {
+            $this->markTestSkipped('symlink requires "Create symbolic links" privilege on Windows');
+        }
+
+        // https://bugs.php.net/bug.php?id=69473
+        if ($relative && '\\' === \DIRECTORY_SEPARATOR && 1 === PHP_ZTS) {
+            $this->markTestSkipped('symlink does not support relative paths on thread safe Windows PHP versions');
+        }
+    }
+
+    protected function markAsSkippedIfChmodIsMissing()
+    {
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $this->markTestSkipped('chmod is not supported on Windows');
+        }
+    }
+
+    protected function markAsSkippedIfPosixIsMissing()
+    {
+        if (!\function_exists('posix_isatty')) {
+            $this->markTestSkipped('Function posix_isatty is required.');
+        }
+    }
+}

vendor/symfony/filesystem/Tests/Fixtures/MockStream/MockStream.php

@@ -0,0 +1,46 @@
+<?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\Filesystem\Tests\Fixtures\MockStream;
+
+/**
+ * Mock stream class to be used with stream_wrapper_register.
+ * stream_wrapper_register('mock', 'Symfony\Component\Filesystem\Tests\Fixtures\MockStream\MockStream').
+ */
+class MockStream
+{
+    /**
+     * Opens file or URL.
+     *
+     * @param string $path        Specifies the URL that was passed to the original function
+     * @param string $mode        The mode used to open the file, as detailed for fopen()
+     * @param int    $options     Holds additional flags set by the streams API
+     * @param string $opened_path If the path is opened successfully, and STREAM_USE_PATH is set in options,
+     *                            opened_path should be set to the full path of the file/resource that was actually opened
+     *
+     * @return bool
+     */
+    public function stream_open($path, $mode, $options, &$opened_path)
+    {
+        return true;
+    }
+
+    /**
+     * @param string $path  The file path or URL to stat
+     * @param array  $flags Holds additional flags set by the streams API
+     *
+     * @return array File stats
+     */
+    public function url_stat($path, $flags)
+    {
+        return array();
+    }
+}

vendor/symfony/filesystem/Tests/LockHandlerTest.php

@@ -0,0 +1,148 @@
+<?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\Filesystem\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Filesystem\Exception\IOException;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\Filesystem\LockHandler;
+
+/**
+ * @group legacy
+ */
+class LockHandlerTest extends TestCase
+{
+    /**
+     * @expectedException \Symfony\Component\Filesystem\Exception\IOException
+     * @expectedExceptionMessage Failed to create "/a/b/c/d/e": mkdir(): Permission denied.
+     */
+    public function testConstructWhenRepositoryDoesNotExist()
+    {
+        if (!getenv('USER') || 'root' === getenv('USER')) {
+            $this->markTestSkipped('This test will fail if run under superuser');
+        }
+        new LockHandler('lock', '/a/b/c/d/e');
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Filesystem\Exception\IOException
+     * @expectedExceptionMessage The directory "/" is not writable.
+     */
+    public function testConstructWhenRepositoryIsNotWriteable()
+    {
+        if (!getenv('USER') || 'root' === getenv('USER')) {
+            $this->markTestSkipped('This test will fail if run under superuser');
+        }
+        new LockHandler('lock', '/');
+    }
+
+    public function testErrorHandlingInLockIfLockPathBecomesUnwritable()
+    {
+        // skip test on Windows; PHP can't easily set file as unreadable on Windows
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $this->markTestSkipped('This test cannot run on Windows.');
+        }
+
+        if (!getenv('USER') || 'root' === getenv('USER')) {
+            $this->markTestSkipped('This test will fail if run under superuser');
+        }
+
+        $lockPath = sys_get_temp_dir().'/'.uniqid('', true);
+        $e = null;
+        $wrongMessage = null;
+
+        try {
+            mkdir($lockPath);
+
+            $lockHandler = new LockHandler('lock', $lockPath);
+
+            chmod($lockPath, 0444);
+
+            $lockHandler->lock();
+        } catch (IOException $e) {
+            if (false === strpos($e->getMessage(), 'Permission denied')) {
+                $wrongMessage = $e->getMessage();
+            } else {
+                $this->addToAssertionCount(1);
+            }
+        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
+        }
+
+        if (is_dir($lockPath)) {
+            $fs = new Filesystem();
+            $fs->remove($lockPath);
+        }
+
+        $this->assertInstanceOf('Symfony\Component\Filesystem\Exception\IOException', $e, sprintf('Expected IOException to be thrown, got %s instead.', \get_class($e)));
+        $this->assertNull($wrongMessage, sprintf('Expected exception message to contain "Permission denied", got "%s" instead.', $wrongMessage));
+    }
+
+    public function testConstructSanitizeName()
+    {
+        $lock = new LockHandler('<?php echo "% hello word ! %" ?>');
+
+        $file = sprintf('%s/sf.-php-echo-hello-word-.4b3d9d0d27ddef3a78a64685dda3a963e478659a9e5240feaf7b4173a8f28d5f.lock', sys_get_temp_dir());
+        // ensure the file does not exist before the lock
+        @unlink($file);
+
+        $lock->lock();
+
+        $this->assertFileExists($file);
+
+        $lock->release();
+    }
+
+    public function testLockRelease()
+    {
+        $name = 'symfony-test-filesystem.lock';
+
+        $l1 = new LockHandler($name);
+        $l2 = new LockHandler($name);
+
+        $this->assertTrue($l1->lock());
+        $this->assertFalse($l2->lock());
+
+        $l1->release();
+
+        $this->assertTrue($l2->lock());
+        $l2->release();
+    }
+
+    public function testLockTwice()
+    {
+        $name = 'symfony-test-filesystem.lock';
+
+        $lockHandler = new LockHandler($name);
+
+        $this->assertTrue($lockHandler->lock());
+        $this->assertTrue($lockHandler->lock());
+
+        $lockHandler->release();
+    }
+
+    public function testLockIsReleased()
+    {
+        $name = 'symfony-test-filesystem.lock';
+
+        $l1 = new LockHandler($name);
+        $l2 = new LockHandler($name);
+
+        $this->assertTrue($l1->lock());
+        $this->assertFalse($l2->lock());
+
+        $l1 = null;
+
+        $this->assertTrue($l2->lock());
+        $l2->release();
+    }
+}

vendor/symfony/filesystem/composer.json

@@ -0,0 +1,34 @@
+{
+    "name": "symfony/filesystem",
+    "type": "library",
+    "description": "Symfony Filesystem Component",
+    "keywords": [],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": "^5.5.9|>=7.0.8",
+        "symfony/polyfill-ctype": "~1.8"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\Filesystem\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.4-dev"
+        }
+    }
+}

vendor/symfony/filesystem/phpunit.xml.dist

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.1/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Symfony Filesystem Component Test Suite">
+            <directory>./Tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>