| <?php |
| /** |
| * File containing the ezcBaseMetaDataTarballReader class. |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| * @package Base |
| * @version //autogentag// |
| * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 |
| */ |
| /** |
| * Base class implements ways of fetching information about the installed |
| * eZ Components when installed as tarball. |
| * |
| * @package Base |
| * @version //autogentag// |
| * @mainclass |
| */ |
| class ezcBaseMetaDataTarballReader |
| { |
| /** |
| * Contains the handler to the XML file containing the release information. |
| * @var SimpleXmlElement |
| */ |
| private $xml; |
| |
| /** |
| * Creates the reader object and opens the release-info file. |
| */ |
| public function __construct() |
| { |
| $filename = dirname( __FILE__ ) . '/../../../release-info.xml'; |
| $this->xml = simplexml_load_file( $filename ); |
| } |
| |
| /** |
| * Returns the version string for the installed eZ Components bundle. |
| * |
| * A version string such as "2008.2.2" is returned. |
| * |
| * @return string |
| */ |
| public function getBundleVersion() |
| { |
| return (string) $this->xml->version; |
| } |
| |
| /** |
| * Returns a PHP version string that describes the required PHP version for |
| * this installed eZ Components bundle. |
| * |
| * @return string |
| */ |
| public function getRequiredPhpVersion() |
| { |
| return (string) $this->xml->deps->php; |
| } |
| |
| /** |
| * Returns whether $componentName is installed |
| * |
| * Returns true for every component that exists (because all of them are |
| * then available). |
| * |
| * @return bool |
| */ |
| public function isComponentInstalled( $componentName ) |
| { |
| $root = $this->xml->deps->packages->package; |
| |
| foreach ( $root as $package ) |
| { |
| if ( (string) $package['name'] == $componentName ) |
| { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the version string of the available $componentName or false when |
| * the component is not installed. |
| * |
| * @return string |
| */ |
| public function getComponentVersion( $componentName ) |
| { |
| $root = $this->xml->deps->packages->package; |
| |
| foreach ( $root as $package ) |
| { |
| if ( (string) $package['name'] == $componentName ) |
| { |
| return (string) $package['version']; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns a list of components that $componentName depends on. |
| * |
| * If $componentName is left empty, all installed components are returned. |
| * |
| * The returned array has as keys the component names, and as values the |
| * version of the components. It returns null of the $componentName |
| * is not found. |
| * |
| * @return array(string=>string). |
| */ |
| public function getComponentDependencies( $componentName = null ) |
| { |
| $baseVersion = false; |
| $root = $this->xml->deps->packages; |
| $found = $componentName === null ? true : false; |
| |
| // in case $componentName != null, we loop through all the components |
| // in the file, and figure out the new root that we can list dependency |
| // packages from. |
| foreach ( $root->package as $package ) |
| { |
| if ( (string) $package['name'] == 'Base' ) |
| { |
| $baseVersion = $package['version']; |
| } |
| if ( !$found && (string) $package['name'] == $componentName ) |
| { |
| $root = $package->deps; |
| $found = true; |
| } |
| } |
| |
| if ( !$found ) |
| { |
| return null; |
| } |
| |
| // We always add the Base dependency even though it's not in the dependency file. |
| $deps = array(); |
| $deps['Base'] = (string) $baseVersion; |
| |
| if ( !isset( $root->package ) ) |
| { |
| return $deps; |
| } |
| foreach ( $root->package as $package ) |
| { |
| $deps[(string) $package['name']] = (string) $package['version']; |
| } |
| return $deps; |
| } |
| } |
| ?> |