544 lines
14 KiB
PHP
Executable File
544 lines
14 KiB
PHP
Executable File
<?php
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/**
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* DocumentationService
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*
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* Handles the management of the documentation services delivered by the entity.
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*
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* Includes registering which components to document and handles the entities being
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* documented.
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*
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* @package docsviewer
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*/
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class DocumentationService {
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/**
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* A mapping of known / popular languages to nice titles.
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*
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* @var Array
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*/
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private static $language_mapping = array(
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'en' => 'English',
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'fr' => 'Français',
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'de' => 'Deutsch'
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);
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/**
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* Files to ignore from any documentation listing.
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*
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* @var array
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*/
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private static $ignored_files = array(
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'.', '..', '.DS_Store',
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'.svn', '.git', 'assets', 'themes', '_images'
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);
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/**
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* Case insenstive values to use as extensions on markdown pages. The
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* recommended extension is .md.
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*
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* @var array
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*/
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public static $valid_markdown_extensions = array('md', 'txt', 'markdown');
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/**
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* Registered {@link DocumentationEntity} objects to include in the
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* documentation.
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*
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* Either pre-filled by the automatic filesystem parser or via
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* {@link DocumentationService::register()}.
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*
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* Stores the {@link DocumentEntity} objects which contain the languages
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* and versions of each entity.
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*
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* You can remove registered {@link DocumentationEntity} objects by using
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* {@link DocumentationService::unregister()}
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*
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* @var array
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*/
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private static $registered_entities = array();
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/**
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* Should generation of documentation categories be automatic?
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*
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* If this is set to true then it will generate {@link DocumentationEntity}
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* objects from the filesystem. This can be slow and also some projects
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* may want to restrict to specific project folders (rather than everything).
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*
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* You can also disable or remove a given folder from registration using
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* {@link DocumentationService::unregister()}
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*
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* @see DocumentationService::$registered_entities
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* @see DocumentationService::set_automatic_registration();
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*
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* @var bool
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*/
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private static $automatic_registration = true;
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/**
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* Return the allowed extensions
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*
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* @return array
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*/
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public static function get_valid_extensions() {
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return self::$valid_markdown_extensions;
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}
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/**
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* Check to see if a given extension is a valid extension to be rendered.
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* Assumes that $ext has a leading dot as that is what $valid_extension uses.
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*
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* @return bool
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*/
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public static function is_valid_extension($ext) {
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return in_array(strtolower($ext), self::get_valid_extensions());
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}
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/**
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* Set the ignored files list
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*
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* @param array
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*/
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public function set_ignored_files($files) {
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self::$ignored_files = $files;
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}
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/**
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* Return the list of files which are ignored
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*
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* @return array
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*/
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public static function get_ignored_files() {
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return self::$ignored_files;
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}
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/**
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* Set automatic registration of entities and documentation folders
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*
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* @see DocumentationService::$automatic_registration
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* @param bool
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*/
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public static function set_automatic_registration($bool = true) {
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self::$automatic_registration = $bool;
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if(!$bool) {
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// remove current registed entities when disabling automatic registration
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// needed to avoid caching issues when running all the tests
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self::$registered_entities = array();
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}
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}
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/**
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* Is automatic registration of entities enabled.
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*
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* @return bool
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*/
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public static function automatic_registration_enabled() {
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return self::$automatic_registration;
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}
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/**
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* Return the entities which are listed for documentation. Optionally only
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* get entities which have a version or language given.
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*
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* @return array
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*/
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public static function get_registered_entities($version = false, $lang = false) {
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$output = array();
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if($entities = self::$registered_entities) {
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if($version || $lang) {
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foreach($entities as $entity) {
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if(self::is_registered_entity($entity->getFolder(), $version, $lang)) {
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$output[$entity->getFolder()] = $entity;
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}
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}
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}
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else {
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$output = $entities;
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}
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}
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return $output;
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}
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/**
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* Check to see if a entity is registered with the documenter.
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*
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* @param String $entity entity name
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* @param String $version version
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* @param String $lang language
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*
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* @return DocumentationEntity $entity the registered entity
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*/
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public static function is_registered_entity($entity, $version = false, $lang = false) {
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$check = ($entity instanceof DocumentationEntity) ? $entity->getFolder() : (string) $entity;
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if(isset(self::$registered_entities[$check])) {
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$entity = self::$registered_entities[$check];
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if(($lang && !$entity->hasLanguage($lang)) || ($version && !$entity->hasVersion($version))) {
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return false;
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}
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return $entity;
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}
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return false;
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}
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/**
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* Register a entity to be included in the documentation. To unregister a entity
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* use {@link DocumentationService::unregister()}. Must include the trailing slash
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*
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* @param String $entity Name of entity to register
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* @param String $path Path to documentation root.
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* @param Float $version Version of entity.
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* @param String $title Nice title to use
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* @param bool $latest - return is this the latest release.
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*
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* @throws InvalidArgumentException
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*
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* @return DocumentationEntity
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*/
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public static function register($entity, $path, $version = '', $title = false, $latest = false) {
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if(!file_exists($path)) throw new InvalidArgumentException(sprintf('Path "%s" doesn\'t exist', $path));
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// add the entity to the registered array
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if(!isset(self::$registered_entities[$entity])) {
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// entity is completely new
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$output = new DocumentationEntity($entity, $version, $path, $title);
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self::$registered_entities[$entity] = $output;
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}
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else {
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// entity exists so add the version to it
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$output = self::$registered_entities[$entity];
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$output->addVersion($version, $path);
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}
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if($latest)
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$output->setStableVersion($version);
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return $output;
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}
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/**
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* Unregister a entity from being included in the documentation. Useful
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* for keeping {@link DocumentationService::$automatic_registration} enabled
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* but disabling entities which you do not want to show. Combined with a
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* {@link Director::isLive()} you can hide entities you don't want a client to see.
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*
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* If no version or lang specified then the whole entity is removed. Otherwise only
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* the specified version of the documentation.
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*
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* @param String $entity
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* @param String $version
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*
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* @return bool
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*/
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public static function unregister($entityName, $version = false) {
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if(isset(self::$registered_entities[$entityName])) {
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$entity = self::$registered_entities[$entityName];
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if($version) {
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$entity->removeVersion($version);
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}
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else {
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// only given a entity so unset the whole entity
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unset(self::$registered_entities[$entityName]);
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}
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return true;
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}
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return false;
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}
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/**
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* Register the docs from off a file system if automatic registration is
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* turned on.
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*
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* @see {@link DocumentationService::set_automatic_registration()}
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*/
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public static function load_automatic_registration() {
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if(self::automatic_registration_enabled()) {
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$entities = scandir(BASE_PATH);
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if($entities) {
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foreach($entities as $key => $entity) {
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$dir = is_dir(Controller::join_links(BASE_PATH, $entity));
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$ignored = in_array($entity, self::get_ignored_files(), true);
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if($dir && !$ignored) {
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// check to see if it has docs
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$docs = Director::baseFolder() . '/' . Controller::join_links($entity, 'docs');
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if(is_dir($docs)) {
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self::register($entity, $docs, '', $entity, true);
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}
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}
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}
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}
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}
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}
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/**
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* Convert a language code to a 'nice' text string. Uses the
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* {@link self::$language_mapping} array combined with translatable.
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*
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* @param String $code code
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*/
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public static function get_language_title($lang) {
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$map = self::$language_mapping;
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if(isset($map[$lang])) {
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return _t("DOCUMENTATIONSERVICE.LANG-$lang", $map[$lang]);
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}
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return $lang;
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}
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/**
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* Find a documentation page given a path and a file name. It ignores the
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* extensions and simply compares the title.
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*
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* Name may also be a path /install/foo/bar.
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*
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* @param DocumentationEntity
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* @param array exploded url string
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* @param string version number
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* @param string lang code
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*
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* @return String|false - File path
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*/
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static function find_page($entity, $path, $version = '', $lang = 'en') {
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if($entity = self::is_registered_entity($entity, $version, $lang)) {
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return self::find_page_recursive($entity->getPath($version, $lang), $path);
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}
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return false;
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}
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/**
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* Recursive function for finding the goal of a path to a documentation
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* page
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*
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* @return string
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*/
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private static function find_page_recursive($base, $goal) {
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$handle = (is_dir($base)) ? opendir($base) : false;
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$name = self::trim_extension_off(strtolower(array_shift($goal)));
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if(!$name || $name == '/') $name = 'index';
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if($handle) {
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$ignored = self::get_ignored_files();
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// ensure we end with a slash
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$base = rtrim($base, '/') .'/';
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while (false !== ($file = readdir($handle))) {
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if(in_array($file, $ignored)) continue;
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$formatted = self::trim_extension_off(strtolower($file));
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// the folder is the one that we are looking for.
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if(strtolower($name) == strtolower($formatted)) {
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// if this file is a directory we could be displaying that
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// or simply moving towards the goal.
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if(is_dir(Controller::join_links($base, $file))) {
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$base = $base . trim($file, '/') .'/';
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// if this is a directory check that there is any more states to get
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// to in the goal. If none then what we want is the 'index.md' file
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if(count($goal) > 0) {
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return self::find_page_recursive($base, $goal);
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}
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else {
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// recurse but check for an index.md file next time around
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return self::find_page_recursive($base, array('index'));
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}
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}
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else {
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// goal state. End of recursion.
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// tidy up the URLs with single trailing slashes
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$result = $base . ltrim($file, '/');
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if(is_dir($result)) $result = (rtrim($result, '/') . '/');
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return $result;
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}
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}
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}
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closedir($handle);
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}
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return false;
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}
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/**
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* String helper for cleaning a file name to a readable version.
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*
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* @param String $name to convert
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*
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* @return String $name output
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*/
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public static function clean_page_name($name) {
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// remove dashs and _
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$name = str_replace(array('-', '_'), ' ', $name);
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// remove extension
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$name = self::trim_extension_off($name);
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// if it starts with a number strip and contains a space strip it off
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if(strpos($name, ' ') !== false) {
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$space = strpos($name, ' ');
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$short = substr($name, 0, $space);
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if(is_numeric($short)) {
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$name = substr($name, $space);
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}
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}
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// convert first letter
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return ucfirst(trim($name));
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}
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/**
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* Helper function to strip the extension off and return the name without
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* the extension. If you need the extension see {@link get_extension()}
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*
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* @param string
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*
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* @return string
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*/
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public static function trim_extension_off($name) {
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$ext = self::get_extension($name);
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if($ext) {
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if(self::is_valid_extension($ext)) {
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return substr($name, 0, strrpos($name,'.'));
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}
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}
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return $name;
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}
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/**
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* Returns the extension from a string. If you want to trim the extension
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* off the end of the string see {@link trim_extension_off()}
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*
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* @param string
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*
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* @return string
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*/
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public static function get_extension($name) {
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return substr(strrchr($name,'.'), 1);
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}
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/**
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* Return the children from a given entity sorted by Title using natural ordering.
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* It is used for building the tree of the page.
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*
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* @param DocumentationEntity path
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* @param string - an optional path within a entity
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* @param bool enable several recursive calls (more than 1 level)
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* @param string - version to use
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* @param string - lang to use
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*
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* @throws Exception
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* @return ArrayList
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*/
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public static function get_pages_from_folder($entity, $relativePath = false, $recursive = true, $version = 'trunk', $lang = 'en') {
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$output = new ArrayList();
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$pages = array();
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if(!$entity instanceof DocumentationEntity)
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user_error("get_pages_from_folder must be passed a entity", E_USER_ERROR);
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$path = $entity->getPath($version, $lang);
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if(self::is_registered_entity($entity)) {
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self::get_pages_from_folder_recursive($path, $relativePath, $recursive, $pages);
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}
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else {
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return user_error("$entity is not registered", E_USER_WARNING);
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}
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if(count($pages) > 0) {
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natsort($pages);
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foreach($pages as $key => $pagePath) {
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// get file name from the path
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$file = ($pos = strrpos($pagePath, '/')) ? substr($pagePath, $pos + 1) : $pagePath;
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$page = new DocumentationPage();
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$page->setTitle(self::clean_page_name($file));
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$relative = str_replace($path, '', $pagePath);
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// if no extension, put a slash on it
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if(strpos($relative, '.') === false) $relative .= '/';
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$page->setEntity($entity);
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$page->setRelativePath($relative);
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$page->setVersion($version);
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$page->setLang($lang);
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$output->push($page);
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}
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}
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return $output;
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}
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/**
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* Recursively search through a given folder
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*
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* @see {@link DocumentationService::get_pages_from_folder}
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*/
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private static function get_pages_from_folder_recursive($base, $relative, $recusive, &$pages) {
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if(!is_dir($base)) throw new Exception(sprintf('%s is not a folder', $folder));
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$folder = Controller::join_links($base, $relative);
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if(!is_dir($folder)) return false;
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$handle = opendir($folder);
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if($handle) {
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$ignore = self::get_ignored_files();
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$files = array();
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while (false !== ($file = readdir($handle))) {
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if(!in_array($file, $ignore)) {
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$path = Controller::join_links($folder, $file);
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$relativeFilePath = Controller::join_links($relative, $file);
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if(is_dir($path)) {
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// dir
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$pages[] = $relativeFilePath;
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if($recusive) self::get_pages_from_folder_recursive($base, $relativeFilePath, $recusive, $pages);
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}
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else if(self::is_valid_extension(self::get_extension($path))) {
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// file we want
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$pages[] = $relativeFilePath;
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}
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}
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}
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}
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closedir($handle);
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}
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} |