Directory.php
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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Recursively reads a directory
*
* PHP versions 4 and 5
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
*
* @category File Formats
* @package File_Archive
* @author Vincent Lascaux <vincentlascaux@php.net>
* @copyright 1997-2005 The PHP Group
* @license http://www.gnu.org/copyleft/lesser.html LGPL
* @version CVS: $Id: Directory.php,v 1.21 2005/07/07 12:24:58 vincentlascaux Exp $
* @link http://pear.php.net/package/File_Archive
*/
require_once "File/Archive/Reader/Relay.php";
require_once "File/Archive/Reader/File.php";
/**
* Recursively reads a directory
*/
class File_Archive_Reader_Directory extends File_Archive_Reader_Relay
{
/**
* @var String URL of the directory that must be read
* @access private
*/
var $directory;
/**
* @var Int The subdirectories will be read up to a depth of maxRecurs
* If maxRecurs == 0, the subdirectories will not be read
* If maxRecurs == -1, the depth is considered infinite
* @access private
*/
var $maxRecurs;
/**
* @var Object Handle returned by the openedDirectory function
* @access private
*/
var $directoryHandle = null;
/**
* $directory is the path of the directory that must be read
* If $maxRecurs is specified, the subdirectories will be read up to a depth
* of $maxRecurs. In particular, if $maxRecurs == 0, the subdirectories
* won't be read.
*/
function File_Archive_Reader_Directory($directory, $symbolic='',
$maxRecurs=-1)
{
parent::File_Archive_Reader_Relay($tmp = null);
$this->directory = empty($directory) ? '.' : $directory;
$this->symbolic = $this->getStandardURL($symbolic);
$this->maxRecurs = $maxRecurs;
}
/**
* @see File_Archive_Reader::close()
*/
function close()
{
$error = parent::close();
if ($this->directoryHandle !== null) {
closedir($this->directoryHandle);
$this->directoryHandle = null;
}
return $error;
}
/**
* @see File_Archive_Reader::next()
*
* The files are returned in the same order as readdir
*/
function next()
{
if ($this->directoryHandle === null) {
$this->directoryHandle = opendir($this->directory);
if (!is_resource($this->directoryHandle)) {
return PEAR::raiseError(
"Directory {$this->directory} not found"
);
}
}
while ($this->source === null ||
($error = $this->source->next()) !== true) {
if ($this->source !== null) {
$this->source->close();
}
$file = readdir($this->directoryHandle);
if ($file == '.' || $file == '..') {
continue;
}
if ($file === false) {
return false;
}
$current = $this->directory.'/'.$file;
if (is_dir($current)) {
if ($this->maxRecurs != 0) {
$this->source = new File_Archive_Reader_Directory(
$current, $file.'/', $this->maxRecurs-1
);
}
} else {
$this->source = new File_Archive_Reader_File($current, $file);
}
}
return $error;
}
/**
* @see File_Archive_Reader::getFilename()
*/
function getFilename() { return $this->symbolic . parent::getFilename(); }
/**
* @see File_Archive_Reader::makeWriterRemoveFiles()
*/
function makeWriterRemoveFiles($pred)
{
if ($source !== null && $pred->isTrue($this)) {
$toUnlink = $this->getDataFilename();
} else {
$toUnlink = null;
}
while ($this->next()) {
if ($toUnlink !== null &&
!@unlink($toUnlink)) {
return PEAR::raiseError("Unable to unlink $toUnlink");
}
$toUnlink = ($pred->isTrue($this) ? $this->getDataFilename() : null);
}
if ($toUnlink !== null &&
!@unlink("Unable to unlink $toUnlink")) {
return PEAR::raiseError($pred);
}
require_once "File/Archive/Writer/Files.php";
$writer = new File_Archive_Writer_Files($this->directory);
$this->close();
return $writer;
}
function &getLastSource()
{
if ($this->source === null ||
is_a($this->source, 'File_Archive_Reader_File')) {
return $this->source;
} else {
return $this->source->getLastSource();
}
}
/**
* @see File_Archive_Reader::makeWriterRemoveBlocks()
*/
function makeWriterRemoveBlocks($blocks, $seek = 0)
{
$lastSource = &$this->getLastSource();
if ($lastSource === null) {
return PEAR::raiseError('No file selected');
}
require_once "File/Archive/Writer/Files.php";
$writer = $lastSource->makeWriterRemoveBlocks($blocks, $seek);
if (!PEAR::isError($writer)) {
$writer->basePath = $this->directory;
$this->close();
}
return $writer;
}
/**
* @see File_Archive_Reader::makeAppendWriter
*/
function makeAppendWriter()
{
require_once "File/Archive/Writer/Files.php";
if ($this->source === null ||
is_a($this->source, 'File_Archive_Reader_File') ) {
$writer = new File_Archive_Writer_Files($this->directory);
} else {
$writer = $this->source->makeAppendWriter($seek);
}
$this->close();
return $writer;
}
}
?>