| /vendor/symfony/filesystem/Filesystem.php |
|---|
| @@ -0,0 +1,738 @@ |
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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\IOException; |
| use Symfony\Component\Filesystem\Exception\FileNotFoundException; |
| |
| /** |
| * Provides basic utility to manipulate the file system. |
| * |
| * @author Fabien Potencier <fabien@symfony.com> |
| */ |
| class Filesystem |
| { |
| /** |
| * 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, $overwriteNewerFiles = false) |
| { |
| if (stream_is_local($originFile) && !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, $originFile); |
| } |
| |
| // Like `cp`, preserve executable permission bits |
| @chmod($targetFile, fileperms($targetFile) | (fileperms($originFile) & 0111)); |
| |
| if (stream_is_local($originFile) && $bytesCopied !== ($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|array|\Traversable $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->toIterator($dirs) as $dir) { |
| if (is_dir($dir)) { |
| continue; |
| } |
| |
| if (true !== @mkdir($dir, $mode, true)) { |
| $error = error_get_last(); |
| if (!is_dir($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 ($error) { |
| throw new IOException(sprintf('Failed to create "%s": %s.', $dir, $error['message']), 0, null, $dir); |
| } |
| throw new IOException(sprintf('Failed to create "%s"', $dir), 0, null, $dir); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Checks the existence of files or directories. |
| * |
| * @param string|array|\Traversable $files A filename, an array of files, or a \Traversable instance to check |
| * |
| * @return bool true if the file exists, false otherwise |
| */ |
| public function exists($files) |
| { |
| foreach ($this->toIterator($files) as $file) { |
| if ('\\' === DIRECTORY_SEPARATOR && strlen($file) > 258) { |
| throw new IOException('Could not check if file exist because path length exceeds 258 characters.', 0, null, $file); |
| } |
| |
| if (!file_exists($file)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Sets access and modification time of file. |
| * |
| * @param string|array|\Traversable $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->toIterator($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|array|\Traversable $files A filename, an array of files, or a \Traversable instance to remove |
| * |
| * @throws IOException When removal fails |
| */ |
| public function remove($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 (!@(unlink($file) || '\\' !== DIRECTORY_SEPARATOR || rmdir($file)) && file_exists($file)) { |
| $error = error_get_last(); |
| throw new IOException(sprintf('Failed to remove symlink "%s": %s.', $file, $error['message'])); |
| } |
| } elseif (is_dir($file)) { |
| $this->remove(new \FilesystemIterator($file, \FilesystemIterator::CURRENT_AS_PATHNAME | \FilesystemIterator::SKIP_DOTS)); |
| |
| if (!@rmdir($file) && file_exists($file)) { |
| $error = error_get_last(); |
| throw new IOException(sprintf('Failed to remove directory "%s": %s.', $file, $error['message'])); |
| } |
| } elseif (!@unlink($file) && file_exists($file)) { |
| $error = error_get_last(); |
| throw new IOException(sprintf('Failed to remove file "%s": %s.', $file, $error['message'])); |
| } |
| } |
| } |
| |
| /** |
| * Change mode for an array of files or directories. |
| * |
| * @param string|array|\Traversable $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->toIterator($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|array|\Traversable $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->toIterator($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|array|\Traversable $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->toIterator($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) |
| { |
| if ('\\' === DIRECTORY_SEPARATOR && strlen($filename) > 258) { |
| throw new IOException('Could not check if file is readable because path length exceeds 258 characters.', 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)); |
| |
| $ok = false; |
| if (is_link($targetDir)) { |
| if (readlink($targetDir) != $originDir) { |
| $this->remove($targetDir); |
| } else { |
| $ok = true; |
| } |
| } |
| |
| if (!$ok && true !== @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->toIterator($targetFiles) as $targetFile) { |
| if (is_file($targetFile)) { |
| if (fileinode($originFile) === fileinode($targetFile)) { |
| continue; |
| } |
| $this->remove($targetFile); |
| } |
| |
| if (true !== @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) |
| { |
| $report = error_get_last(); |
| if (is_array($report)) { |
| if ('\\' === DIRECTORY_SEPARATOR && false !== strpos($report['message'], '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) |
| { |
| // Normalize separators on Windows |
| if ('\\' === DIRECTORY_SEPARATOR) { |
| $endPath = str_replace('\\', '/', $endPath); |
| $startPath = str_replace('\\', '/', $startPath); |
| } |
| |
| // Split the paths into arrays |
| $startPathArr = explode('/', trim($startPath, '/')); |
| $endPathArr = explode('/', trim($endPath, '/')); |
| |
| if ('/' !== $startPath[0]) { |
| array_shift($startPathArr); |
| } |
| |
| if ('/' !== $endPath[0]) { |
| array_shift($endPathArr); |
| } |
| |
| $normalizePathArray = function ($pathSegments) { |
| $result = array(); |
| |
| foreach ($pathSegments as $segment) { |
| if ('..' === $segment) { |
| array_pop($result); |
| } else { |
| $result[] = $segment; |
| } |
| } |
| |
| return $result; |
| }; |
| |
| $startPathArr = $normalizePathArray($startPathArr); |
| $endPathArr = $normalizePathArray($endPathArr); |
| |
| // Find for which directory the common path stops |
| $index = 0; |
| while (isset($startPathArr[$index]) && isset($endPathArr[$index]) && $startPathArr[$index] === $endPathArr[$index]) { |
| ++$index; |
| } |
| |
| // Determine how deep the start path is relative to the common path (ie, "web/bundles" = 2 levels) |
| if (count($startPathArr) === 1 && $startPathArr[0] === '') { |
| $depth = 0; |
| } else { |
| $depth = count($startPathArr) - $index; |
| } |
| |
| // When we need to traverse from the start, and we are starting from a root path, don't add '../' |
| if ('/' === $startPath[0] && 0 === $index && 0 === $depth) { |
| $traverser = ''; |
| } else { |
| // 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. |
| * |
| * @param string $originDir The origin directory |
| * @param string $targetDir The target directory |
| * @param \Traversable $iterator A Traversable instance |
| * @param array $options An array of boolean options |
| * Valid options are: |
| * - $options['override'] Whether to override an existing file on copy or not (see copy()) |
| * - $options['copy_on_windows'] Whether to copy files instead of links on Windows (see symlink()) |
| * - $options['delete'] Whether to delete files that are not in the source directory (defaults to false) |
| * |
| * @throws IOException When file type is unknown |
| */ |
| public function mirror($originDir, $targetDir, \Traversable $iterator = null, $options = array()) |
| { |
| $targetDir = rtrim($targetDir, '/\\'); |
| $originDir = rtrim($originDir, '/\\'); |
| |
| // 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, $flags), \RecursiveIteratorIterator::CHILD_FIRST); |
| } |
| foreach ($deleteIterator as $file) { |
| $origin = str_replace($targetDir, $originDir, $file->getPathname()); |
| if (!$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) { |
| $target = str_replace($originDir, $targetDir, $file->getPathname()); |
| |
| if ($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($file[0]) |
| && substr($file, 1, 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 $files |
| * |
| * @return \Traversable |
| */ |
| private function toIterator($files) |
| { |
| if (!$files instanceof \Traversable) { |
| $files = new \ArrayObject(is_array($files) ? $files : array($files)); |
| } |
| |
| return $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]); |
| } |
| } |
