crm.fsf.org/20131203/files/sites/all/modules-new/civicrm/packages/ezc/Base/src/metadata/pear.php

   1 <?php
   2 /**
   3  * File containing the ezcBaseMetaDataPearReader class.
   4  *
   5  * @package Base
   6  * @version 1.7
   7  * @copyright Copyright (C) 2005-2009 eZ Systems AS. All rights reserved.
   8  * @license http://ez.no/licenses/new_bsd New BSD License
   9  */
  10
  11 @require 'PEAR/Registry.php';
  12
  13 /**
  14  * Base class implements ways of fetching information about the installed
  15  * eZ Components when installed as tarball.
  16  *
  17  * Note: there are lots of @ used here, because PEAR still lives in the stone
  18  * age with their PHP 3 code and general liberal use of throwing warnings and
  19  * notices.
  20  *
  21  * @package Base
  22  * @version 1.7
  23  * @mainclass
  24  */
  25 class ezcBaseMetaDataPearReader
  26 {
  27     /**
  28      * Stores the PEAR_Registry to query for information
  29      *
  30      * @var PEAR_Registry
  31      */
  32     private $registry;
  33
  34     /**
  35      * Creates the reader object and initialized the registry for querying
  36      */
  37     public function __construct()
  38     {
  39         @$this->registry = new PEAR_Registry;
  40     }
  41
  42     /**
  43      * Returns the version string for the installed eZ Components bundle.
  44      *
  45      * A version string such as "2008.2.2" is returned.
  46      *
  47      * @return string
  48      */
  49     public function getBundleVersion()
  50     {
  51         @$packageInfo = $this->registry->packageInfo( 'ezcomponents', null, 'components.ez.no' );
  52         return $packageInfo['version']['release'];
  53     }
  54
  55     /**
  56      * Returns a PHP version string that describes the required PHP version for
  57      * this installed eZ Components bundle.
  58      *
  59      * @return string
  60      */
  61     public function getRequiredPhpVersion()
  62     {
  63         @$packageInfo = $this->registry->packageInfo( 'ezcomponents', null, 'components.ez.no' );
  64         if ( array_key_exists( 'required', $packageInfo['dependencies'] ) )
  65         {
  66             return $packageInfo['dependencies']['required']['php']['min'];
  67         }
  68         return $packageInfo['dependencies']['php']['min'];
  69     }
  70
  71     /**
  72      * Returns whether $componentName is installed
  73      *
  74      * Checks the PEAR registry whether the component is there.
  75      *
  76      * @return bool
  77      */
  78     public function isComponentInstalled( $componentName )
  79     {
  80         @$packageInfo = $this->registry->packageInfo( $componentName, null, 'components.ez.no' );
  81         return is_array( $packageInfo );
  82     }
  83
  84     /**
  85      * Returns the version string of the available $componentName or false when
  86      * the component is not installed.
  87      *
  88      * @return string
  89      */
  90     public function getComponentVersion( $componentName )
  91     {
  92         @$packageInfo = $this->registry->packageInfo( $componentName, null, 'components.ez.no' );
  93         $release = $packageInfo['version']['release'];
  94         return $release === null ? false : $release;
  95     }
  96
  97     /**
  98      * Returns a list of components that $componentName depends on.
  99      *
 100      * If $componentName is left empty, all installed components are returned.
 101      *
 102      * The returned array has as keys the component names, and as values the
 103      * version of the components.
 104      *
 105      * @return array(string=>string).
 106      */
 107     public function getComponentDependencies( $componentName = 'ezcomponents' )
 108     {
 109         @$packageInfo = $this->registry->packageInfo( $componentName, 'dependencies', 'components.ez.no' );
 110         if ( isset( $packageInfo['required']['package'] ) )
 111         {
 112             $deps = array();
 113             if ( isset( $packageInfo['required']['package']['name'] ) )
 114             {
 115                 $deps[$packageInfo['required']['package']['name']] = $packageInfo['required']['package']['min'];
 116             }
 117             else
 118             {
 119                 foreach ( $packageInfo['required']['package'] as $package )
 120                 {
 121                     $deps[$package['name']] = $package['min'];
 122                 }
 123             }
 124             return $deps;
 125         }
 126         return array();
 127     }
 128 }
 129 ?>