770 lines
29 KiB
PHP
770 lines
29 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Filesystem;
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use Symfony\Component\Filesystem\Exception\FileNotFoundException;
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use Symfony\Component\Filesystem\Exception\InvalidArgumentException;
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use Symfony\Component\Filesystem\Exception\IOException;
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/**
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* Provides basic utility to manipulate the file system.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Filesystem
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{
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private static $lastError;
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/**
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* Copies a file.
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*
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* If the target file is older than the origin file, it's always overwritten.
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* If the target file is newer, it is overwritten only when the
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* $overwriteNewerFiles option is set to true.
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*
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* @throws FileNotFoundException When originFile doesn't exist
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* @throws IOException When copy fails
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*/
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public function copy(string $originFile, string $targetFile, bool $overwriteNewerFiles = false)
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{
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$originIsLocal = stream_is_local($originFile) || 0 === stripos($originFile, 'file://');
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if ($originIsLocal && !is_file($originFile)) {
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throw new FileNotFoundException(sprintf('Failed to copy "%s" because file does not exist.', $originFile), 0, null, $originFile);
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}
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$this->mkdir(\dirname($targetFile));
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$doCopy = true;
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if (!$overwriteNewerFiles && null === parse_url($originFile, \PHP_URL_HOST) && is_file($targetFile)) {
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$doCopy = filemtime($originFile) > filemtime($targetFile);
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}
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if ($doCopy) {
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// https://bugs.php.net/64634
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if (!$source = self::box('fopen', $originFile, 'r')) {
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throw new IOException(sprintf('Failed to copy "%s" to "%s" because source file could not be opened for reading: ', $originFile, $targetFile).self::$lastError, 0, null, $originFile);
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}
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// Stream context created to allow files overwrite when using FTP stream wrapper - disabled by default
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if (!$target = self::box('fopen', $targetFile, 'w', false, stream_context_create(['ftp' => ['overwrite' => true]]))) {
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throw new IOException(sprintf('Failed to copy "%s" to "%s" because target file could not be opened for writing: ', $originFile, $targetFile).self::$lastError, 0, null, $originFile);
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}
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$bytesCopied = stream_copy_to_stream($source, $target);
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fclose($source);
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fclose($target);
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unset($source, $target);
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if (!is_file($targetFile)) {
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throw new IOException(sprintf('Failed to copy "%s" to "%s".', $originFile, $targetFile), 0, null, $originFile);
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}
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if ($originIsLocal) {
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// Like `cp`, preserve executable permission bits
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self::box('chmod', $targetFile, fileperms($targetFile) | (fileperms($originFile) & 0111));
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if ($bytesCopied !== $bytesOrigin = filesize($originFile)) {
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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);
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}
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}
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}
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}
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/**
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* Creates a directory recursively.
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*
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* @param string|iterable $dirs The directory path
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*
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* @throws IOException On any directory creation failure
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*/
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public function mkdir($dirs, int $mode = 0777)
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{
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foreach ($this->toIterable($dirs) as $dir) {
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if (is_dir($dir)) {
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continue;
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}
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if (!self::box('mkdir', $dir, $mode, true) && !is_dir($dir)) {
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throw new IOException(sprintf('Failed to create "%s": ', $dir).self::$lastError, 0, null, $dir);
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}
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}
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}
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/**
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* Checks the existence of files or directories.
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*
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* @param string|iterable $files A filename, an array of files, or a \Traversable instance to check
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*
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* @return bool
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*/
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public function exists($files)
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{
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$maxPathLength = \PHP_MAXPATHLEN - 2;
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foreach ($this->toIterable($files) as $file) {
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if (\strlen($file) > $maxPathLength) {
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throw new IOException(sprintf('Could not check if file exist because path length exceeds %d characters.', $maxPathLength), 0, null, $file);
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}
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if (!file_exists($file)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Sets access and modification time of file.
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*
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* @param string|iterable $files A filename, an array of files, or a \Traversable instance to create
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* @param int|null $time The touch time as a Unix timestamp, if not supplied the current system time is used
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* @param int|null $atime The access time as a Unix timestamp, if not supplied the current system time is used
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*
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* @throws IOException When touch fails
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*/
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public function touch($files, int $time = null, int $atime = null)
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{
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foreach ($this->toIterable($files) as $file) {
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if (!($time ? self::box('touch', $file, $time, $atime) : self::box('touch', $file))) {
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throw new IOException(sprintf('Failed to touch "%s": ', $file).self::$lastError, 0, null, $file);
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}
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}
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}
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/**
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* Removes files or directories.
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*
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* @param string|iterable $files A filename, an array of files, or a \Traversable instance to remove
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*
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* @throws IOException When removal fails
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*/
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public function remove($files)
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{
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if ($files instanceof \Traversable) {
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$files = iterator_to_array($files, false);
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} elseif (!\is_array($files)) {
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$files = [$files];
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}
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self::doRemove($files, false);
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}
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private static function doRemove(array $files, bool $isRecursive): void
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{
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$files = array_reverse($files);
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foreach ($files as $file) {
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if (is_link($file)) {
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// See https://bugs.php.net/52176
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if (!(self::box('unlink', $file) || '\\' !== \DIRECTORY_SEPARATOR || self::box('rmdir', $file)) && file_exists($file)) {
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throw new IOException(sprintf('Failed to remove symlink "%s": ', $file).self::$lastError);
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}
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} elseif (is_dir($file)) {
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if (!$isRecursive) {
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$tmpName = \dirname(realpath($file)).'/.'.strrev(strtr(base64_encode(random_bytes(2)), '/=', '-.'));
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if (file_exists($tmpName)) {
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try {
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self::doRemove([$tmpName], true);
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} catch (IOException $e) {
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}
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}
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if (!file_exists($tmpName) && self::box('rename', $file, $tmpName)) {
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$origFile = $file;
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$file = $tmpName;
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} else {
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$origFile = null;
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}
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}
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$files = new \FilesystemIterator($file, \FilesystemIterator::CURRENT_AS_PATHNAME | \FilesystemIterator::SKIP_DOTS);
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self::doRemove(iterator_to_array($files, true), true);
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if (!self::box('rmdir', $file) && file_exists($file) && !$isRecursive) {
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$lastError = self::$lastError;
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if (null !== $origFile && self::box('rename', $file, $origFile)) {
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$file = $origFile;
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}
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throw new IOException(sprintf('Failed to remove directory "%s": ', $file).$lastError);
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}
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} elseif (!self::box('unlink', $file) && (str_contains(self::$lastError, 'Permission denied') || file_exists($file))) {
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throw new IOException(sprintf('Failed to remove file "%s": ', $file).self::$lastError);
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}
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}
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}
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/**
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* Change mode for an array of files or directories.
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*
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* @param string|iterable $files A filename, an array of files, or a \Traversable instance to change mode
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* @param int $mode The new mode (octal)
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* @param int $umask The mode mask (octal)
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* @param bool $recursive Whether change the mod recursively or not
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*
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* @throws IOException When the change fails
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*/
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public function chmod($files, int $mode, int $umask = 0000, bool $recursive = false)
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{
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foreach ($this->toIterable($files) as $file) {
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if ((\PHP_VERSION_ID < 80000 || \is_int($mode)) && !self::box('chmod', $file, $mode & ~$umask)) {
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throw new IOException(sprintf('Failed to chmod file "%s": ', $file).self::$lastError, 0, null, $file);
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}
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if ($recursive && is_dir($file) && !is_link($file)) {
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$this->chmod(new \FilesystemIterator($file), $mode, $umask, true);
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}
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}
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}
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/**
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* Change the owner of an array of files or directories.
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*
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* @param string|iterable $files A filename, an array of files, or a \Traversable instance to change owner
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* @param string|int $user A user name or number
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* @param bool $recursive Whether change the owner recursively or not
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*
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* @throws IOException When the change fails
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*/
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public function chown($files, $user, bool $recursive = false)
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{
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foreach ($this->toIterable($files) as $file) {
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if ($recursive && is_dir($file) && !is_link($file)) {
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$this->chown(new \FilesystemIterator($file), $user, true);
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}
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if (is_link($file) && \function_exists('lchown')) {
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if (!self::box('lchown', $file, $user)) {
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throw new IOException(sprintf('Failed to chown file "%s": ', $file).self::$lastError, 0, null, $file);
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}
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} else {
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if (!self::box('chown', $file, $user)) {
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throw new IOException(sprintf('Failed to chown file "%s": ', $file).self::$lastError, 0, null, $file);
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}
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}
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}
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}
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/**
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* Change the group of an array of files or directories.
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*
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* @param string|iterable $files A filename, an array of files, or a \Traversable instance to change group
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* @param string|int $group A group name or number
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* @param bool $recursive Whether change the group recursively or not
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*
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* @throws IOException When the change fails
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*/
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public function chgrp($files, $group, bool $recursive = false)
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{
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foreach ($this->toIterable($files) as $file) {
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if ($recursive && is_dir($file) && !is_link($file)) {
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$this->chgrp(new \FilesystemIterator($file), $group, true);
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}
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if (is_link($file) && \function_exists('lchgrp')) {
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if (!self::box('lchgrp', $file, $group)) {
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throw new IOException(sprintf('Failed to chgrp file "%s": ', $file).self::$lastError, 0, null, $file);
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}
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} else {
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if (!self::box('chgrp', $file, $group)) {
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throw new IOException(sprintf('Failed to chgrp file "%s": ', $file).self::$lastError, 0, null, $file);
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}
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}
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}
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}
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/**
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* Renames a file or a directory.
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*
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* @throws IOException When target file or directory already exists
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* @throws IOException When origin cannot be renamed
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*/
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public function rename(string $origin, string $target, bool $overwrite = false)
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{
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// we check that target does not exist
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if (!$overwrite && $this->isReadable($target)) {
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throw new IOException(sprintf('Cannot rename because the target "%s" already exists.', $target), 0, null, $target);
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}
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if (!self::box('rename', $origin, $target)) {
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if (is_dir($origin)) {
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// See https://bugs.php.net/54097 & https://php.net/rename#113943
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$this->mirror($origin, $target, null, ['override' => $overwrite, 'delete' => $overwrite]);
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$this->remove($origin);
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return;
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}
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throw new IOException(sprintf('Cannot rename "%s" to "%s": ', $origin, $target).self::$lastError, 0, null, $target);
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}
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}
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/**
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* Tells whether a file exists and is readable.
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*
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* @throws IOException When windows path is longer than 258 characters
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*/
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private function isReadable(string $filename): bool
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{
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$maxPathLength = \PHP_MAXPATHLEN - 2;
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if (\strlen($filename) > $maxPathLength) {
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throw new IOException(sprintf('Could not check if file is readable because path length exceeds %d characters.', $maxPathLength), 0, null, $filename);
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}
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return is_readable($filename);
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}
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/**
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* Creates a symbolic link or copy a directory.
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*
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* @throws IOException When symlink fails
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*/
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public function symlink(string $originDir, string $targetDir, bool $copyOnWindows = false)
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{
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self::assertFunctionExists('symlink');
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if ('\\' === \DIRECTORY_SEPARATOR) {
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$originDir = strtr($originDir, '/', '\\');
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$targetDir = strtr($targetDir, '/', '\\');
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if ($copyOnWindows) {
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$this->mirror($originDir, $targetDir);
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return;
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}
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}
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$this->mkdir(\dirname($targetDir));
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if (is_link($targetDir)) {
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if (readlink($targetDir) === $originDir) {
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return;
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}
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$this->remove($targetDir);
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}
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if (!self::box('symlink', $originDir, $targetDir)) {
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$this->linkException($originDir, $targetDir, 'symbolic');
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}
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}
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/**
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* Creates a hard link, or several hard links to a file.
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*
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* @param string|string[] $targetFiles The target file(s)
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*
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* @throws FileNotFoundException When original file is missing or not a file
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* @throws IOException When link fails, including if link already exists
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*/
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public function hardlink(string $originFile, $targetFiles)
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{
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self::assertFunctionExists('link');
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if (!$this->exists($originFile)) {
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throw new FileNotFoundException(null, 0, null, $originFile);
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}
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if (!is_file($originFile)) {
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throw new FileNotFoundException(sprintf('Origin file "%s" is not a file.', $originFile));
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}
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foreach ($this->toIterable($targetFiles) as $targetFile) {
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if (is_file($targetFile)) {
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if (fileinode($originFile) === fileinode($targetFile)) {
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continue;
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}
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$this->remove($targetFile);
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}
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if (!self::box('link', $originFile, $targetFile)) {
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$this->linkException($originFile, $targetFile, 'hard');
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}
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}
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}
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/**
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* @param string $linkType Name of the link type, typically 'symbolic' or 'hard'
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*/
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private function linkException(string $origin, string $target, string $linkType)
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{
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if (self::$lastError) {
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if ('\\' === \DIRECTORY_SEPARATOR && str_contains(self::$lastError, 'error code(1314)')) {
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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);
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}
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}
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throw new IOException(sprintf('Failed to create "%s" link from "%s" to "%s": ', $linkType, $origin, $target).self::$lastError, 0, null, $target);
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}
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/**
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* Resolves links in paths.
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*
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* With $canonicalize = false (default)
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* - if $path does not exist or is not a link, returns null
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* - if $path is a link, returns the next direct target of the link without considering the existence of the target
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*
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* With $canonicalize = true
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* - if $path does not exist, returns null
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* - if $path exists, returns its absolute fully resolved final version
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*
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* @return string|null
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*/
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public function readlink(string $path, bool $canonicalize = false)
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{
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if (!$canonicalize && !is_link($path)) {
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return null;
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}
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if ($canonicalize) {
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if (!$this->exists($path)) {
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return null;
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}
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if ('\\' === \DIRECTORY_SEPARATOR && \PHP_VERSION_ID < 70410) {
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$path = readlink($path);
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}
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return realpath($path);
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}
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if ('\\' === \DIRECTORY_SEPARATOR && \PHP_VERSION_ID < 70400) {
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return realpath($path);
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}
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return readlink($path);
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}
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/**
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* Given an existing path, convert it to a path relative to a given starting path.
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*
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* @return string
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*/
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public function makePathRelative(string $endPath, string $startPath)
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{
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if (!$this->isAbsolutePath($startPath)) {
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throw new InvalidArgumentException(sprintf('The start path "%s" is not absolute.', $startPath));
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}
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if (!$this->isAbsolutePath($endPath)) {
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throw new InvalidArgumentException(sprintf('The end path "%s" is not absolute.', $endPath));
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}
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// Normalize separators on Windows
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if ('\\' === \DIRECTORY_SEPARATOR) {
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$endPath = str_replace('\\', '/', $endPath);
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$startPath = str_replace('\\', '/', $startPath);
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}
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$splitDriveLetter = function ($path) {
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return (\strlen($path) > 2 && ':' === $path[1] && '/' === $path[2] && ctype_alpha($path[0]))
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? [substr($path, 2), strtoupper($path[0])]
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: [$path, null];
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};
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$splitPath = function ($path) {
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$result = [];
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foreach (explode('/', trim($path, '/')) as $segment) {
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if ('..' === $segment) {
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array_pop($result);
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} elseif ('.' !== $segment && '' !== $segment) {
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$result[] = $segment;
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}
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}
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return $result;
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};
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[$endPath, $endDriveLetter] = $splitDriveLetter($endPath);
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[$startPath, $startDriveLetter] = $splitDriveLetter($startPath);
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$startPathArr = $splitPath($startPath);
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$endPathArr = $splitPath($endPath);
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if ($endDriveLetter && $startDriveLetter && $endDriveLetter != $startDriveLetter) {
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// End path is on another drive, so no relative path exists
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return $endDriveLetter.':/'.($endPathArr ? implode('/', $endPathArr).'/' : '');
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}
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// Find for which directory the common path stops
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$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 \Traversable|null $iterator Iterator that filters which files and directories to copy, if null a recursive iterator is created
|
|
* @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(string $originDir, string $targetDir, \Traversable $iterator = null, array $options = [])
|
|
{
|
|
$targetDir = rtrim($targetDir, '/\\');
|
|
$originDir = rtrim($originDir, '/\\');
|
|
$originDirLen = \strlen($originDir);
|
|
|
|
if (!$this->exists($originDir)) {
|
|
throw new IOException(sprintf('The origin directory specified "%s" was not found.', $originDir), 0, null, $originDir);
|
|
}
|
|
|
|
// Iterate in destination folder to remove obsolete entries
|
|
if ($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 = $options['copy_on_windows'] ?? false;
|
|
|
|
if (null === $iterator) {
|
|
$flags = $copyOnWindows ? \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS : \FilesystemIterator::SKIP_DOTS;
|
|
$iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($originDir, $flags), \RecursiveIteratorIterator::SELF_FIRST);
|
|
}
|
|
|
|
$this->mkdir($targetDir);
|
|
$filesCreatedWhileMirroring = [];
|
|
|
|
foreach ($iterator as $file) {
|
|
if ($file->getPathname() === $targetDir || $file->getRealPath() === $targetDir || isset($filesCreatedWhileMirroring[$file->getRealPath()])) {
|
|
continue;
|
|
}
|
|
|
|
$target = $targetDir.substr($file->getPathname(), $originDirLen);
|
|
$filesCreatedWhileMirroring[$target] = true;
|
|
|
|
if (!$copyOnWindows && is_link($file)) {
|
|
$this->symlink($file->getLinkTarget(), $target);
|
|
} elseif (is_dir($file)) {
|
|
$this->mkdir($target);
|
|
} elseif (is_file($file)) {
|
|
$this->copy($file, $target, $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.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isAbsolutePath(string $file)
|
|
{
|
|
return '' !== $file && (strspn($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 $prefix The prefix of the generated temporary filename
|
|
* Note: Windows uses only the first three characters of prefix
|
|
* @param string $suffix The suffix of the generated temporary filename
|
|
*
|
|
* @return string The new temporary filename (with path), or throw an exception on failure
|
|
*/
|
|
public function tempnam(string $dir, string $prefix/* , string $suffix = '' */)
|
|
{
|
|
$suffix = \func_num_args() > 2 ? func_get_arg(2) : '';
|
|
[$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) && '' === $suffix) {
|
|
// If tempnam failed or no scheme return the filename otherwise prepend the scheme
|
|
if ($tmpFile = self::box('tempnam', $hierarchy, $prefix)) {
|
|
if (null !== $scheme && 'gs' !== $scheme) {
|
|
return $scheme.'://'.$tmpFile;
|
|
}
|
|
|
|
return $tmpFile;
|
|
}
|
|
|
|
throw new IOException('A temporary file could not be created: '.self::$lastError);
|
|
}
|
|
|
|
// 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).$suffix;
|
|
|
|
// Use fopen instead of file_exists as some streams do not support stat
|
|
// Use mode 'x+' to atomically check existence and create to avoid a TOCTOU vulnerability
|
|
if (!$handle = self::box('fopen', $tmpFile, 'x+')) {
|
|
continue;
|
|
}
|
|
|
|
// Close the file if it was successfully opened
|
|
self::box('fclose', $handle);
|
|
|
|
return $tmpFile;
|
|
}
|
|
|
|
throw new IOException('A temporary file could not be created: '.self::$lastError);
|
|
}
|
|
|
|
/**
|
|
* Atomically dumps content into a file.
|
|
*
|
|
* @param string|resource $content The data to write into the file
|
|
*
|
|
* @throws IOException if the file cannot be written to
|
|
*/
|
|
public function dumpFile(string $filename, $content)
|
|
{
|
|
if (\is_array($content)) {
|
|
throw new \TypeError(sprintf('Argument 2 passed to "%s()" must be string or resource, array given.', __METHOD__));
|
|
}
|
|
|
|
$dir = \dirname($filename);
|
|
|
|
if (!is_dir($dir)) {
|
|
$this->mkdir($dir);
|
|
}
|
|
|
|
// Will create a temp file with 0600 access rights
|
|
// when the filesystem supports chmod.
|
|
$tmpFile = $this->tempnam($dir, basename($filename));
|
|
|
|
try {
|
|
if (false === self::box('file_put_contents', $tmpFile, $content)) {
|
|
throw new IOException(sprintf('Failed to write file "%s": ', $filename).self::$lastError, 0, null, $filename);
|
|
}
|
|
|
|
self::box('chmod', $tmpFile, file_exists($filename) ? fileperms($filename) : 0666 & ~umask());
|
|
|
|
$this->rename($tmpFile, $filename, true);
|
|
} finally {
|
|
if (file_exists($tmpFile)) {
|
|
self::box('unlink', $tmpFile);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Appends content to an existing file.
|
|
*
|
|
* @param string|resource $content The content to append
|
|
* @param bool $lock Whether the file should be locked when writing to it
|
|
*
|
|
* @throws IOException If the file is not writable
|
|
*/
|
|
public function appendToFile(string $filename, $content/* , bool $lock = false */)
|
|
{
|
|
if (\is_array($content)) {
|
|
throw new \TypeError(sprintf('Argument 2 passed to "%s()" must be string or resource, array given.', __METHOD__));
|
|
}
|
|
|
|
$dir = \dirname($filename);
|
|
|
|
if (!is_dir($dir)) {
|
|
$this->mkdir($dir);
|
|
}
|
|
|
|
$lock = \func_num_args() > 2 && func_get_arg(2);
|
|
|
|
if (false === self::box('file_put_contents', $filename, $content, \FILE_APPEND | ($lock ? \LOCK_EX : 0))) {
|
|
throw new IOException(sprintf('Failed to write file "%s": ', $filename).self::$lastError, 0, null, $filename);
|
|
}
|
|
}
|
|
|
|
private function toIterable($files): iterable
|
|
{
|
|
return is_iterable($files) ? $files : [$files];
|
|
}
|
|
|
|
/**
|
|
* Gets a 2-tuple of scheme (may be null) and hierarchical part of a filename (e.g. file:///tmp -> [file, tmp]).
|
|
*/
|
|
private function getSchemeAndHierarchy(string $filename): array
|
|
{
|
|
$components = explode('://', $filename, 2);
|
|
|
|
return 2 === \count($components) ? [$components[0], $components[1]] : [null, $components[0]];
|
|
}
|
|
|
|
private static function assertFunctionExists(string $func): void
|
|
{
|
|
if (!\function_exists($func)) {
|
|
throw new IOException(sprintf('Unable to perform filesystem operation because the "%s()" function has been disabled.', $func));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param mixed ...$args
|
|
*
|
|
* @return mixed
|
|
*/
|
|
private static function box(string $func, ...$args)
|
|
{
|
|
self::assertFunctionExists($func);
|
|
|
|
self::$lastError = null;
|
|
set_error_handler(__CLASS__.'::handleError');
|
|
try {
|
|
return $func(...$args);
|
|
} finally {
|
|
restore_error_handler();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @internal
|
|
*/
|
|
public static function handleError(int $type, string $msg)
|
|
{
|
|
self::$lastError = $msg;
|
|
}
|
|
}
|