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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\Finder\Shell;
  13  
  14  @trigger_error('The '.__NAMESPACE__.'\Shell class is deprecated since Symfony 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
  15  
  16  /**
  17   * @author Jean-François Simon <contact@jfsimon.fr>
  18   *
  19   * @deprecated since 2.8, to be removed in 3.0.
  20   */
  21  class Shell
  22  {
  23      const TYPE_UNIX = 1;
  24      const TYPE_DARWIN = 2;
  25      const TYPE_CYGWIN = 3;
  26      const TYPE_WINDOWS = 4;
  27      const TYPE_BSD = 5;
  28  
  29      /**
  30       * @var string|null
  31       */
  32      private $type;
  33  
  34      /**
  35       * Returns guessed OS type.
  36       *
  37       * @return int
  38       */
  39      public function getType()
  40      {
  41          if (null === $this->type) {
  42              $this->type = $this->guessType();
  43          }
  44  
  45          return $this->type;
  46      }
  47  
  48      /**
  49       * Tests if a command is available.
  50       *
  51       * @param string $command
  52       *
  53       * @return bool
  54       */
  55      public function testCommand($command)
  56      {
  57          if (!\function_exists('exec')) {
  58              return false;
  59          }
  60  
  61          // todo: find a better way (command could not be available)
  62          $testCommand = 'which ';
  63          if (self::TYPE_WINDOWS === $this->type) {
  64              $testCommand = 'where ';
  65          }
  66  
  67          $command = escapeshellcmd($command);
  68  
  69          exec($testCommand.$command, $output, $code);
  70  
  71          return 0 === $code && \count($output) > 0;
  72      }
  73  
  74      /**
  75       * Guesses OS type.
  76       *
  77       * @return int
  78       */
  79      private function guessType()
  80      {
  81          $os = strtolower(PHP_OS);
  82  
  83          if (false !== strpos($os, 'cygwin')) {
  84              return self::TYPE_CYGWIN;
  85          }
  86  
  87          if (false !== strpos($os, 'darwin')) {
  88              return self::TYPE_DARWIN;
  89          }
  90  
  91          if (false !== strpos($os, 'bsd')) {
  92              return self::TYPE_BSD;
  93          }
  94  
  95          if (0 === strpos($os, 'win')) {
  96              return self::TYPE_WINDOWS;
  97          }
  98  
  99          return self::TYPE_UNIX;
 100      }
 101  }