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

   1 <?php
   2
   3 // src/Rapsys/PackBundle/Twig/Filter/CPackFilter.php
   4 namespace Rapsys\PackBundle\Twig\Filter;
   5
   6 use Rapsys\PackBundle\Twig\Filter\FilterInterface;
   7
   8 class CPackFilter 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 $line;
  20
  21         //Configure the object
  22         //XXX: compress can be minify or pretty
  23         public function __construct($fileName, $line, $bin = 'cpack', $compress = 'minify') {
  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 minify parameter
  39                         if ($this->compress == 'minify') {
  40                                 $this->bin .= ' --minify';
  41                         //Unknown compress type
  42                         #XXX: default compression is pretty
  43                         } elseif ($this->compress !== 'pretty') {
  44                                 //Throw an error on unknown compress
  45                                 throw new \Twig_Error(sprintf('Got unexpected compress for %s: %s', $this->bin, $this->compress), $this->line, $this->fileName);
  46                         }
  47                 }
  48         }
  49
  50         public function process($content) {
  51                 //Create descriptors
  52                 $descriptorSpec = array(
  53                         0 => array('pipe', 'r'),
  54                         1 => array('pipe', 'w'),
  55                         2 => array('pipe', 'w')
  56                 );
  57
  58                 //Open process
  59                 if (is_resource($proc = proc_open($this->bin, $descriptorSpec, $pipes))) {
  60                         //Set stderr as non blocking
  61                         stream_set_blocking($pipes[2], 0);
  62
  63                         //Send content to stdin
  64                         fwrite($pipes[0], $content);
  65
  66                         //Close stdin
  67                         fclose($pipes[0]);
  68
  69                         //Read content from stdout
  70                         if ($stdout = stream_get_contents($pipes[1])) {
  71                                 $content = $stdout;
  72                         }
  73
  74                         //Close stdout
  75                         fclose($pipes[1]);
  76
  77                         //Read content from stderr
  78                         if (($stderr = stream_get_contents($pipes[2]))) {
  79                                 throw new \Twig_Error(sprintf('Got unexpected strerr for %s: %s', $this->bin, $stderr), $this->line, $this->fileName);
  80                         }
  81
  82                         //Close stderr
  83                         fclose($pipes[2]);
  84
  85                         //Close process
  86                         if (($ret = proc_close($proc))) {
  87                                 throw new \Twig_Error(sprintf('Got unexpected non zero return code %s: %d', $this->bin, $ret), $this->line, $this->fileName);
  88                         }
  89                 }
  90
  91                 //Return content
  92                 return $content;
  93         }
  94 }