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| -rw-r--r-- | pear/PEAR/Dependencie.php | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/pear/PEAR/Dependencie.php b/pear/PEAR/Dependencie.php new file mode 100644 index 0000000000..9c4f4fb819 --- /dev/null +++ b/pear/PEAR/Dependencie.php @@ -0,0 +1,86 @@ +<?php +// +// +----------------------------------------------------------------------+ +// | PHP version 4.0 | +// +----------------------------------------------------------------------+ +// | Copyright (c) 1997-2001 The PHP Group | +// +----------------------------------------------------------------------+ +// | This source file is subject to version 2.02 of the PHP license, | +// | that is bundled with this package in the file LICENSE, and is | +// | available at through the world-wide-web at | +// | http://www.php.net/license/2_02.txt. | +// | If you did not receive a copy of the PHP license and are unable to | +// | obtain it through the world-wide-web, please send a note to | +// | license@php.net so we can mail you a copy immediately. | +// +----------------------------------------------------------------------+ +// | Authors: Tomas V.V.Cox <cox@idecnet.com> | +// | Stig Bakken <ssb@fast.no> | +// | | +// +----------------------------------------------------------------------+ +// +// $Id$ + +/** +* Methods for dependencies check. Based on Stig's dependencies RFC +* at http://cvs.php.net/cvs.php/pearweb/rfc +* (requires php >= 4.1) +*/ + +class PEAR_Dependencie +{ + /** + * Package dependencies check method + * + * @param string $name Name of the package to test + * @param string $version The package version required + * @param string $rule A valid version_compare compare operator + * + * @return bool + */ + function package($name, $version = null, $rule = 'has') + { + if (empty($this->registry)) { + $this->registry = new PEAR_Registry; + } + switch ($rule) { + case 'has': + return $this->registry->packageExists($name); + break; + default: + if ($info = $this->registry->packageInfo($name)) { + return version_compare($version, + $info['version'], + $rule); + } + return false; + break; + } + } + + /** + * Extension dependencies check method + * + * @param string $name Name of the extension to test + * @param string $req_ext_ver Required extension version to compare with + * @param string $rule A valid version_compare compare operator + * + * @return bool + */ + function extension($name, $req_ext_ver = null, $rule = 'has') + { + if (!extension_loaded($name)) { + $dlext = OS_WINDOWS ? '.dll' : '.so'; + if (!@dl($name . $dlext)) { + return false; + } elseif($rule == 'has') { + return true; + } + } + // XXX Put here the code to extract the version of a extension. Stig? :) + //$ext_ver = ?????($name); + return version_compare($req_ext_ver, $ext_ver, $rule); + } + +} + +?>
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