gyro/modules/systemupdate/lib/components/installedvalidator.cls.php

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00001 <?php
00002 /**
00003  * Tools for checking if some third party tools are installed
00004  * 
00005  * @author Gerd Riesselmann
00006  * @ingroup SystemUpdate
00007  */
00008 class InstalledValidator {
00009         /**
00010          * Checks if given PEAR modules are installed
00011          *
00012          * @attention 
00013          *   Usually PEAR modules follow the rule that a _ in a class name maps to 
00014          *   a directory in the path name. E.g. module "Text_Diff" maps to file 
00015          *   Text/Diff.php. Some PEAR modules however do not follow this convention, 
00016          *   Mail_Mime for example. This should be reflected by passing "Mail_mime" 
00017          *   in $pear_classes
00018          *   
00019          * @param $pear_classes Array of Module names, e.g. "Text_Diff", "Mail_mime" etc
00020          * @return Status
00021          */
00022         public function validate_pear_modules_are_installed($pear_classes) {
00023                 $ret = new Status();
00024                 foreach(Arr::force($pear_classes, false) as $cls) {
00025                         // A_B_C => A/B/C.php
00026                         // There are PEAR modules that do not follow this convention, Mail_Mime, e.g. 
00027                         // which becomes Mail/mime.php - This should be reflected by passing
00028                         // Mail_mime in $pear_classes
00029                         $file = str_replace('_', '/', $cls) . '.php';
00030                         @include_once($file);
00031                         if ((!class_exists($cls))) {
00032                                 $ret->append(tr('PEAR module %mod not installed! Please execute "pear install %mod"', 'systemupdate', array('%mod' => $cls)));
00033                         }
00034                 }
00035                 
00036                 return $ret;
00037         }
00038         
00039         
00040 }