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-rw-r--r--pear/PEAR/Dependency.php261
1 files changed, 0 insertions, 261 deletions
diff --git a/pear/PEAR/Dependency.php b/pear/PEAR/Dependency.php
deleted file mode 100644
index 53b32c67e2..0000000000
--- a/pear/PEAR/Dependency.php
+++ /dev/null
@@ -1,261 +0,0 @@
-<?php
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2002 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)
-*/
-
-require_once "PEAR.php";
-
-class PEAR_Dependency
-{
- function PEAR_Dependency(&$registry)
- {
- $this->registry = &$registry;
- }
- /**
- * This method maps the xml dependency definition to the
- * PEAR_dependecy one
- *
- * $opts => Array
- * (
- * [type] => pkg
- * [rel] => ge
- * [version] => 3.4
- * [name] => HTML_Common
- * )
- */
- function callCheckMethod($opts)
- {
- $rel = isset($opts['rel']) ? $opts['rel'] : 'has';
- if (isset($opts['version'])) {
- $req = $opts['version'];
- $rel = 'v.' . $rel;
- } else {
- $req = null;
- }
- $name = isset($opts['name']) ? $opts['name'] : null;
- switch ($opts['type']) {
- case 'pkg':
- return $this->checkPackage($name, $req, $rel);
- break;
- case 'ext':
- return $this->checkExtension($name, $req, $rel);
- break;
- case 'php':
- return $this->checkPHP($req, $rel);
- break;
- case 'prog':
- return $this->checkProgram($name);
- break;
- case 'os':
- return $this->checkOS($name);
- break;
- case 'sapi':
- return $this->checkSAPI($name);
- break;
- default:
- return "'{$opts['type']}' dependency type not supported";
- }
- }
-
- /**
- * Package dependencies check method
- *
- * @param string $name Name of the package to test
- * @param string $version The package version required
- * @param string $relation How to compare versions with eachother
- *
- * @return mixed bool false if no error or the error string
- */
- function checkPackage($name, $req = null, $relation = 'has')
- {
- if (substr($relation, 0, 2) == "v.") {
- $relation = substr($relation, 2);
- }
- switch ($relation) {
- case 'has':
- if (!$this->registry->packageExists($name)) {
- return "requires package `$name'";
- }
- return false;
- case 'not':
- if (!$this->registry->packageExists($name)) {
- return "conflicts with package `$name'";
- }
- return false;
- case 'lt':
- case 'le':
- case 'eq':
- case 'ne':
- case 'ge':
- case 'gt':
- $version = $this->registry->packageInfo($name, 'version');
- if (!$this->registry->packageExists($name)
- || !version_compare("$version", "$req", $relation))
- {
- return "requires package `$name' " .
- $this->signOperator($relation) . " $req";
- }
- return false;
- }
- return "Relation '$relation' with requirement '$req' is not supported (name=$name)";
- }
-
- /**
- * 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 $relation How to compare versions with eachother
- *
- * @return mixed bool false if no error or the error string
- */
- function checkExtension($name, $req = null, $relation = 'has')
- {
- // XXX (ssb): could we avoid loading the extension here?
- if (!PEAR::loadExtension($name)) {
- return "'$name' PHP extension is not installed";
- }
- if ($relation == 'has') {
- return false;
- }
- if (substr($relation, 0, 2) == 'v.') {
- $ext_ver = phpversion($name);
- $operator = substr($relation, 2);
- // Force params to be strings, otherwise the comparation will fail (ex. 0.9==0.90)
- if (!version_compare("$ext_ver", "$req", $operator)) {
- return "'$name' PHP extension version " .
- $this->signOperator($operator) . " $req is required";
- }
- }
- return false;
- }
-
- /**
- * Operating system dependencies check method
- *
- * @param string $os Name of the operating system
- *
- * @return mixed bool false if no error or the error string
- */
- function checkOS($os)
- {
- // XXX Fixme: Implement a more flexible way, like
- // comma separated values or something similar to PEAR_OS
-
- // only 'has' relation is supported
- if ($os == PHP_OS) {
- return false;
- }
- return "'$os' operating system not supported";
- }
-
- /**
- * PHP version check method
- *
- * @param string $req which version to compare
- * @param string $relation how to compare the version
- *
- * @return mixed bool false if no error or the error string
- */
- function checkPHP($req, $relation = 'v.ge')
- {
- if (substr($relation, 0, 2) == 'v.') {
- $php_ver = phpversion();
- $operator = substr($relation, 2);
- if (!version_compare("$php_ver", "$req", $operator)) {
- return "PHP version " . $this->signOperator($operator) .
- " $req is required";
- }
- }
- return false;
- }
-
- /**
- * External program check method. Looks for executable files in
- * directories listed in the PATH environment variable.
- *
- * @param string $program which program to look for
- *
- * @return mixed bool false if no error or the error string
- */
- function checkProgram($program)
- {
- // XXX FIXME honor safe mode
- $path_delim = OS_WINDOWS ? ';' : ':';
- $exe_suffix = OS_WINDOWS ? '.exe' : '';
- $path_elements = explode($path_delim, getenv('PATH'));
- foreach ($path_elements as $dir) {
- $file = $dir . DIRECTORY_SEPARATOR . $program . $exe_suffix;
- if (@file_exists($file) && @is_executable($file)) {
- return false;
- }
- }
- return "'$program' program is not present in the PATH";
- }
-
- /**
- * SAPI backend check method. Version comparison is not yet
- * available here.
- *
- * @param string $name name of SAPI backend
- * @param string $req which version to compare
- * @param string $relation how to compare versions (currently
- * hardcoded to 'has')
- * @return mixed bool false if no error or the error string
- */
- function checkSAPI($name, $req = null, $relation = 'has')
- {
- // XXX Fixme: There is no way to know if the user has or
- // not other SAPI backends installed than the installer one
-
- $sapi_backend = php_sapi_name();
- // Version comparisons not supported, sapi backends don't have
- // version information yet.
- if ($sapi_backend == $name) {
- return false;
- }
- return "'$sapi_backend' SAPI backend not supported";
- }
-
- /**
- * Converts text comparing operators to them sign equivalents
- * ex: 'ge' to '>='
- */
- function signOperator($operator)
- {
- switch($operator) {
- case 'lt': return '<';
- case 'le': return '<=';
- case 'gt': return '>';
- case 'ge': return '>=';
- case 'eq': return '==';
- case 'ne': return '!=';
- default:
- return $operator;
- }
- }
-}
-
-?>
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