FileSystem\ZIP

Complexity

Total Complexity

17

Size/Duplication

Total Lines	57
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes

0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	7	3
A	exists()	0	3	1
A	read()	0	4	3
A	write()	0	5	1
A	append()	0	3	2
A	delete()	0	3	2
A	move()	0	6	2
A	search()	0	11	3

<?php

/**
 * FileSystem\ZIP
 *
 * ZIP Archive Filesystem
 *
 * @package core
 * @author stefano.azzolini@caffeinalab.com
 * @copyright Caffeina srl - 2015 - http://caffeina.it
 */

namespace FileSystem;

class ZIP implements Adapter {

  protected $path,
            $zipfile,
            $fileCache;

  public function __construct(array $options = []) {
      $this->path    = empty($options['root'])?(tempnam(sys_get_temp_dir(), 'CFZ_').'.zip'):rtrim($options['root']);
      $this->zipfile = new \ZipArchive();
      if ( !$this->zipfile->open($this->path, \ZipArchive::CREATE) ){
          throw new \Exception("File::ZIP Cannot open or create ".$this->path);
      }
  }

  public function exists($path){
      return false !== $this->zipfile->locateName($path);
  }

  public function read($path){
      if (isset($this->fileCache[$path])) return $this->fileCache[$path];
      return $this->exists($path) ? $this->zipfile->getFromName($path) : false;
  }

  public function write($path, $data){
      // This is needed because we cant write and read from the same archive.
      $this->fileCache[$path] = $data;
      return $this->zipfile->addFromString($path, $data);
  }

  public function append($path, $data){
      return $this->write($path, ($this->read($path) ?: '') . $data);
  }

  public function delete($path){
      return $this->exists($path) ? $this->zipfile->deleteName($path) : false;
  }

  public function move($old, $new){
      // Atomic rename
      // This is needed because we cant write and read from the same archive.
      return $this->write($new,$this->read($old)) && $this->delete($old);
      // return $this->zipfile->renameName($old, $new);
  }

  public function search($pattern, $recursive=true){
      $results = [];
      $rx_pattern = '('.strtr($pattern,['.'=>'\.','*'=>'.*','?'=>'.']).')Ai';

      for( $i = 0, $c = $this->zipfile->numFiles; $i < $c; $i++ ){
          $stat = $this->zipfile->statIndex( $i );
          if (preg_match($rx_pattern,$stat['name'])) $results[] = $stat['name'];
      }

      return $results;
  }

}