Raphaël G. Git Repositories - packbundle/blob - Twig/Filter/JPackFilter.php

   1 <?php
   2
   3 // src/Rapsys/PackBundle/Twig/Filter/JPackFilter.php
   4 namespace Rapsys\PackBundle\Twig\Filter;
   5
   6 use Rapsys\PackBundle\Twig\Filter\FilterInterface;
   7
   8 class JPackFilter implements FilterInterface {
   9         //Default bin
  10         private $bin;
  11
  12         //Default compress type
  13         private $compress;
  14
  15         //Twig template filename
  16         private $fileName;
  17
  18         //Twig template line
  19         private $line;
  20
  21         //Configure the object
  22         //XXX: can be clean, shrink, obfuscate or best
  23         public function __construct($fileName, $line, $bin = 'jpack', $compress = 'best') {
  24                 //Set fileName
  25                 $this->fileName = $fileName;
  26
  27                 //Set line
  28                 $this->line = $line;
  29
  30                 //Set bin
  31                 $this->bin = $bin;
  32
  33                 //Set compress
  34                 $this->compress = $compress;
  35
  36                 //Deal with compress
  37                 if (!empty($this->compress)) {
  38                         //Append clean parameter
  39                         if ($this->compress == 'clean') {
  40                                 $this->bin .= ' --clean';
  41                         //Append shrink parameter
  42                         } elseif ($this->compress == 'shrink') {
  43                                 $this->bin .= ' --shrink';
  44                         //Append obfuscate parameter
  45                         } elseif ($this->compress == 'obfuscate') {
  46                                 $this->bin .= ' --obfuscate';
  47                         //Unknown compress type
  48                         #XXX: default compression is best
  49                         } elseif ($this->compress !== 'best') {
  50                                 //Throw an error on unknown compress
  51                                 throw new \Twig_Error(sprintf('Got unexpected compress for %s: %s', $this->bin, $this->compress), $this->line, $this->fileName);
  52                         }
  53                 }
  54         }
  55
  56         public function process($content) {
  57                 //Create descriptors
  58                 $descriptorSpec = array(
  59                         0 => array('pipe', 'r'),
  60                         1 => array('pipe', 'w'),
  61                         2 => array('pipe', 'w')
  62                 );
  63
  64                 //Open process
  65                 if (is_resource($proc = proc_open($this->bin, $descriptorSpec, $pipes))) {
  66                         //Set stderr as non blocking
  67                         stream_set_blocking($pipes[2], 0);
  68
  69                         //Send content to stdin
  70                         fwrite($pipes[0], $content);
  71
  72                         //Close stdin
  73                         fclose($pipes[0]);
  74
  75                         //Read content from stdout
  76                         if ($stdout = stream_get_contents($pipes[1])) {
  77                                 $content = $stdout;
  78                         }
  79
  80                         //Close stdout
  81                         fclose($pipes[1]);
  82
  83                         //Read content from stderr
  84                         if (($stderr = stream_get_contents($pipes[2]))) {
  85                                 throw new \Twig_Error(sprintf('Got unexpected strerr for %s: %s', $this->bin, $stderr), $this->line, $this->fileName);
  86                         }
  87
  88                         //Close stderr
  89                         fclose($pipes[2]);
  90
  91                         //Close process
  92                         if (($ret = proc_close($proc))) {
  93                                 throw new \Twig_Error(sprintf('Got unexpected non zero return code %s: %d', $this->bin, $ret), $this->line, $this->fileName);
  94                         }
  95                 }
  96
  97                 //Return content
  98                 return $content;
  99         }
 100 }