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-rw-r--r--pear/PEAR/Dependency.php487
1 files changed, 0 insertions, 487 deletions
diff --git a/pear/PEAR/Dependency.php b/pear/PEAR/Dependency.php
deleted file mode 100644
index ec2bd7e86d..0000000000
--- a/pear/PEAR/Dependency.php
+++ /dev/null
@@ -1,487 +0,0 @@
-<?php
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 5 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2004 The PHP Group |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 3.0 of the PHP license, |
-// | that is bundled with this package in the file LICENSE, and is |
-// | available through the world-wide-web at the following url: |
-// | http://www.php.net/license/3_0.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@php.net> |
-// +----------------------------------------------------------------------+
-//
-// $Id$
-
-require_once "PEAR.php";
-
-define('PEAR_DEPENDENCY_MISSING', -1);
-define('PEAR_DEPENDENCY_CONFLICT', -2);
-define('PEAR_DEPENDENCY_UPGRADE_MINOR', -3);
-define('PEAR_DEPENDENCY_UPGRADE_MAJOR', -4);
-define('PEAR_DEPENDENCY_BAD_DEPENDENCY', -5);
-define('PEAR_DEPENDENCY_MISSING_OPTIONAL', -6);
-define('PEAR_DEPENDENCY_CONFLICT_OPTIONAL', -7);
-define('PEAR_DEPENDENCY_UPGRADE_MINOR_OPTIONAL', -8);
-define('PEAR_DEPENDENCY_UPGRADE_MAJOR_OPTIONAL', -9);
-
-/**
- * Dependency check for PEAR packages
- *
- * The class is based on the dependency RFC that can be found at
- * http://cvs.php.net/cvs.php/pearweb/rfc. It requires PHP >= 4.1
- *
- * @author Tomas V.V.Vox <cox@idecnet.com>
- * @author Stig Bakken <ssb@php.net>
- */
-class PEAR_Dependency
-{
- // {{{ constructor
- /**
- * Constructor
- *
- * @access public
- * @param object Registry object
- * @return void
- */
- function PEAR_Dependency(&$registry)
- {
- $this->registry = &$registry;
- }
-
- // }}}
- // {{{ callCheckMethod()
-
- /**
- * This method maps the XML dependency definition to the
- * corresponding one from PEAR_Dependency
- *
- * <pre>
- * $opts => Array
- * (
- * [type] => pkg
- * [rel] => ge
- * [version] => 3.4
- * [name] => HTML_Common
- * [optional] => false
- * )
- * </pre>
- *
- * @param string Error message
- * @param array Options
- * @return boolean
- */
- function callCheckMethod(&$errmsg, $opts)
- {
- $rel = isset($opts['rel']) ? $opts['rel'] : 'has';
- $req = isset($opts['version']) ? $opts['version'] : null;
- $name = isset($opts['name']) ? $opts['name'] : null;
- $opt = (isset($opts['optional']) && $opts['optional'] == 'yes') ?
- $opts['optional'] : null;
- $errmsg = '';
- switch ($opts['type']) {
- case 'pkg':
- return $this->checkPackage($errmsg, $name, $req, $rel, $opt);
- break;
- case 'ext':
- return $this->checkExtension($errmsg, $name, $req, $rel, $opt);
- break;
- case 'php':
- return $this->checkPHP($errmsg, $req, $rel);
- break;
- case 'prog':
- return $this->checkProgram($errmsg, $name);
- break;
- case 'os':
- return $this->checkOS($errmsg, $name);
- break;
- case 'sapi':
- return $this->checkSAPI($errmsg, $name);
- break;
- case 'zend':
- return $this->checkZend($errmsg, $name);
- break;
- default:
- return "'{$opts['type']}' dependency type not supported";
- }
- }
-
- // }}}
- // {{{ checkPackage()
-
- /**
- * Package dependencies check method
- *
- * @param string $errmsg Empty string, it will be populated with an error message, if any
- * @param string $name Name of the package to test
- * @param string $req The package version required
- * @param string $relation How to compare versions with each other
- * @param bool $opt Whether the relationship is optional
- *
- * @return mixed bool false if no error or the error string
- */
- function checkPackage(&$errmsg, $name, $req = null, $relation = 'has',
- $opt = false)
- {
- if (is_string($req) && substr($req, 0, 2) == 'v.') {
- $req = substr($req, 2);
- }
- switch ($relation) {
- case 'has':
- if (!$this->registry->packageExists($name)) {
- if ($opt) {
- $errmsg = "package `$name' is recommended to utilize some features.";
- return PEAR_DEPENDENCY_MISSING_OPTIONAL;
- }
- $errmsg = "requires package `$name'";
- return PEAR_DEPENDENCY_MISSING;
- }
- return false;
- case 'not':
- if ($this->registry->packageExists($name)) {
- $errmsg = "conflicts with package `$name'";
- return PEAR_DEPENDENCY_CONFLICT;
- }
- 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))
- {
- $code = $this->codeFromRelation($relation, $version, $req, $opt);
- if ($opt) {
- $errmsg = "package `$name' version " . $this->signOperator($relation) .
- " $req is recommended to utilize some features.";
- if ($version) {
- $errmsg .= " Installed version is $version";
- }
- return $code;
- }
- $errmsg = "requires package `$name' " .
- $this->signOperator($relation) . " $req";
- return $code;
- }
- return false;
- }
- $errmsg = "relation '$relation' with requirement '$req' is not supported (name=$name)";
- return PEAR_DEPENDENCY_BAD_DEPENDENCY;
- }
-
- // }}}
- // {{{ checkPackageUninstall()
-
- /**
- * Check package dependencies on uninstall
- *
- * @param string $error The resultant error string
- * @param string $warning The resultant warning string
- * @param string $name Name of the package to test
- *
- * @return bool true if there were errors
- */
- function checkPackageUninstall(&$error, &$warning, $package)
- {
- $error = null;
- $packages = $this->registry->listPackages();
- foreach ($packages as $pkg) {
- if ($pkg == $package) {
- continue;
- }
- $deps = $this->registry->packageInfo($pkg, 'release_deps');
- if (empty($deps)) {
- continue;
- }
- foreach ($deps as $dep) {
- if ($dep['type'] == 'pkg' && strcasecmp($dep['name'], $package) == 0) {
- if ($dep['rel'] == 'ne' || $dep['rel'] == 'not') {
- continue;
- }
- if (isset($dep['optional']) && $dep['optional'] == 'yes') {
- $warning .= "\nWarning: Package '$pkg' optionally depends on '$package'";
- } else {
- $error .= "Package '$pkg' depends on '$package'\n";
- }
- }
- }
- }
- return ($error) ? true : false;
- }
-
- // }}}
- // {{{ checkExtension()
-
- /**
- * 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
- * @param bool $opt Whether the relationship is optional
- *
- * @return mixed bool false if no error or the error string
- */
- function checkExtension(&$errmsg, $name, $req = null, $relation = 'has',
- $opt = false)
- {
- if ($relation == 'not') {
- if (extension_loaded($name)) {
- $errmsg = "conflicts with PHP extension '$name'";
- return PEAR_DEPENDENCY_CONFLICT;
- } else {
- return false;
- }
- }
-
- if (!extension_loaded($name)) {
- if ($relation == 'not') {
- return false;
- }
- if ($opt) {
- $errmsg = "'$name' PHP extension is recommended to utilize some features";
- return PEAR_DEPENDENCY_MISSING_OPTIONAL;
- }
- $errmsg = "'$name' PHP extension is not installed";
- return PEAR_DEPENDENCY_MISSING;
- }
- if ($relation == 'has') {
- return false;
- }
- $code = false;
- if (is_string($req) && substr($req, 0, 2) == 'v.') {
- $req = substr($req, 2);
- }
- $ext_ver = phpversion($name);
- $operator = $relation;
- // Force params to be strings, otherwise the comparation will fail (ex. 0.9==0.90)
- if (!version_compare("$ext_ver", "$req", $operator)) {
- $errmsg = "'$name' PHP extension version " .
- $this->signOperator($operator) . " $req is required";
- $code = $this->codeFromRelation($relation, $ext_ver, $req, $opt);
- if ($opt) {
- $errmsg = "'$name' PHP extension version " . $this->signOperator($operator) .
- " $req is recommended to utilize some features";
- return $code;
- }
- }
- return $code;
- }
-
- // }}}
- // {{{ checkOS()
-
- /**
- * Operating system dependencies check method
- *
- * @param string $os Name of the operating system
- *
- * @return mixed bool false if no error or the error string
- */
- function checkOS(&$errmsg, $os)
- {
- // XXX Fixme: Implement a more flexible way, like
- // comma separated values or something similar to PEAR_OS
- static $myos;
- if (empty($myos)) {
- include_once "OS/Guess.php";
- $myos = new OS_Guess();
- }
- // only 'has' relation is currently supported
- if ($myos->matchSignature($os)) {
- return false;
- }
- $errmsg = "'$os' operating system not supported";
- return PEAR_DEPENDENCY_CONFLICT;
- }
-
- // }}}
- // {{{ checkPHP()
-
- /**
- * PHP version check method
- *
- * @param string $req which version to compare
- * @param string $relation how to compare the version
- *
- * @return mixed bool false if no error or the error string
- */
- function checkPHP(&$errmsg, $req, $relation = 'ge')
- {
- // this would be a bit stupid, but oh well :)
- if ($relation == 'has') {
- return false;
- }
- if ($relation == 'not') {
- $errmsg = 'Invalid dependency - "not" is not allowed for php dependencies, ' .
- 'php cannot conflict with itself';
- return PEAR_DEPENDENCY_BAD_DEPENDENCY;
- }
- if (substr($req, 0, 2) == 'v.') {
- $req = substr($req,2, strlen($req) - 2);
- }
- $php_ver = phpversion();
- $operator = $relation;
- if (!version_compare("$php_ver", "$req", $operator)) {
- $errmsg = "PHP version " . $this->signOperator($operator) .
- " $req is required";
- return PEAR_DEPENDENCY_CONFLICT;
- }
- return false;
- }
-
- // }}}
- // {{{ checkProgram()
-
- /**
- * External program check method. Looks for executable files in
- * directories listed in the PATH environment variable.
- *
- * @param string $program which program to look for
- *
- * @return mixed bool false if no error or the error string
- */
- function checkProgram(&$errmsg, $program)
- {
- // XXX FIXME honor safe mode
- $exe_suffix = OS_WINDOWS ? '.exe' : '';
- $path_elements = explode(PATH_SEPARATOR, getenv('PATH'));
- foreach ($path_elements as $dir) {
- $file = $dir . DIRECTORY_SEPARATOR . $program . $exe_suffix;
- if (@file_exists($file) && @is_executable($file)) {
- return false;
- }
- }
- $errmsg = "'$program' program is not present in the PATH";
- return PEAR_DEPENDENCY_MISSING;
- }
-
- // }}}
- // {{{ checkSAPI()
-
- /**
- * 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 $relation how to compare versions (currently
- * hardcoded to 'has')
- * @return mixed bool false if no error or the error string
- */
- function checkSAPI(&$errmsg, $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;
- }
- $errmsg = "'$sapi_backend' SAPI backend not supported";
- return PEAR_DEPENDENCY_CONFLICT;
- }
-
- // }}}
- // {{{ checkZend()
-
- /**
- * Zend version check method
- *
- * @param string $req which version to compare
- * @param string $relation how to compare the version
- *
- * @return mixed bool false if no error or the error string
- */
- function checkZend(&$errmsg, $req, $relation = 'ge')
- {
- if (substr($req, 0, 2) == 'v.') {
- $req = substr($req,2, strlen($req) - 2);
- }
- $zend_ver = zend_version();
- $operator = substr($relation,0,2);
- if (!version_compare("$zend_ver", "$req", $operator)) {
- $errmsg = "Zend version " . $this->signOperator($operator) .
- " $req is required";
- return PEAR_DEPENDENCY_CONFLICT;
- }
- return false;
- }
-
- // }}}
- // {{{ signOperator()
-
- /**
- * Converts text comparing operators to them sign equivalents
- *
- * Example: 'ge' to '>='
- *
- * @access public
- * @param string Operator
- * @return string Sign equivalent
- */
- function signOperator($operator)
- {
- switch($operator) {
- case 'lt': return '<';
- case 'le': return '<=';
- case 'gt': return '>';
- case 'ge': return '>=';
- case 'eq': return '==';
- case 'ne': return '!=';
- default:
- return $operator;
- }
- }
-
- // }}}
- // {{{ codeFromRelation()
-
- /**
- * Convert relation into corresponding code
- *
- * @access public
- * @param string Relation
- * @param string Version
- * @param string Requirement
- * @param bool Optional dependency indicator
- * @return integer
- */
- function codeFromRelation($relation, $version, $req, $opt = false)
- {
- $code = PEAR_DEPENDENCY_BAD_DEPENDENCY;
- switch ($relation) {
- case 'gt': case 'ge': case 'eq':
- // upgrade
- $have_major = preg_replace('/\D.*/', '', $version);
- $need_major = preg_replace('/\D.*/', '', $req);
- if ($need_major > $have_major) {
- $code = $opt ? PEAR_DEPENDENCY_UPGRADE_MAJOR_OPTIONAL :
- PEAR_DEPENDENCY_UPGRADE_MAJOR;
- } else {
- $code = $opt ? PEAR_DEPENDENCY_UPGRADE_MINOR_OPTIONAL :
- PEAR_DEPENDENCY_UPGRADE_MINOR;
- }
- break;
- case 'lt': case 'le': case 'ne':
- $code = $opt ? PEAR_DEPENDENCY_CONFLICT_OPTIONAL :
- PEAR_DEPENDENCY_CONFLICT;
- break;
- }
- return $code;
- }
-
- // }}}
-}
-?>
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