doc.silverstripe.org/sapphiredocs/code/DocumentationService.php
Ingo Schommer ec0e4a4b96 MINOR Readding sapphiredocs
git-svn-id: http://svn.silverstripe.com/projects/ss2doc/branches/v2@116279 467b73ca-7a2a-4603-9d3b-597d59a354a9
2011-02-14 22:06:22 +00:00

584 lines
15 KiB
PHP

<?php
/**
* DocumentationService
*
* Handles the management of the documentation services delivered by the module.
* Includes registering which components to document and handles the entities being
* documented
*
* @todo - unregistering a lang / version from site does not update the registered_* arrays
* - handle modules (rather than core) differently
* @package sapphiredocs
*/
class DocumentationService {
/**
* A mapping of know / popular languages to nice titles.
*
* @var Array
*/
private static $language_mapping = array(
'en' => 'English',
'fr' => 'French',
'de' => 'German'
);
/**
* Files to ignore from any documentation listing.
*
* @var array
*/
private static $ignored_files = array('.', '..', '.DS_Store', '.svn', '.git', 'assets', 'themes', '_images');
/**
* Case insenstive values to use as extensions on markdown pages.
*
* @var array
*/
public static $valid_markdown_extensions = array('.md', '.txt', '.markdown');
/**
* Registered modules to include in the documentation. Either pre-filled by the
* automatic filesystem parser or via {@link DocumentationService::register()}. Stores
* {@link DocumentEntity} objects which contain the languages and versions of each module.
*
* You can remove registered modules using {@link DocumentationService::unregister()}
*
* @var array
*/
private static $registered_modules = array();
/**
* Major Versions store. We don't want to register all versions of every module in
* the documentation but for sapphire/cms and overall we need to register major
* versions via {@link DocumentationService::register}
*
* @var array
*/
private static $major_versions = array();
/**
* Return the major versions
*
* @return array
*/
public static function get_major_versions() {
return self::$major_versions;
}
/**
* Return the allowed extensions
*
* @return array
*/
public static function get_valid_extensions() {
return self::$valid_markdown_extensions;
}
/**
* Set the ignored files list
*
* @param array
*/
public function set_ignored_files($files) {
self::$ignored_files = $files;
}
/**
* Return the list of files which are ignored
*
* @return array
*/
public function get_ignored_files() {
return self::$ignored_files;
}
/**
* Check to see if a given language is registered in the system
*
* @param string
* @return bool
*/
public static function is_registered_language($lang) {
$langs = self::get_registered_languages();
return (isset($langs[$lang]));
}
/**
* Get all the registered languages. Optionally limited to a module. Includes
* the nice titles
*
* @return Array
*/
public static function get_registered_languages($module = false) {
$langs = array();
if($module) {
if(isset(self::$registered_modules[$module])) {
$langs = self::$registered_modules[$module]->getLanguages();
}
}
else if($modules = self::get_registered_modules()) {
foreach($modules as $module) {
$langs = array_unique(array_merge($langs, $module->getLanguages()));
}
}
$output = array();
foreach($langs as $lang) {
$output[$lang] = self::get_language_title($lang);
}
return $output;
}
/**
* Returns all the registered versions in the system. Optionally only
* include versions from a module.
*
* @param String $module module to check for versions
* @return array
*/
public static function get_registered_versions($module = false) {
if($module) {
if(isset($registered_modules[$module])) {
return $registered_modules[$module]->getVersions();
}
else {
return false;
}
}
return self::$major_versions;
}
/**
* Should generation of documentation categories be automatic. If this
* is set to true then it will generate documentation sections (modules) from
* the filesystem. This can be slow and also some projects may want to restrict
* to specific project folders (rather than everything).
*
* You can also disable or remove a given folder from registration using
* {@link DocumentationService::unregister()}
*
* @see DocumentationService::$registered_modules
* @see DocumentationService::set_automatic_registration();
*
* @var bool
*/
private static $automatic_registration = true;
/**
* Set automatic registration of modules and documentation folders
*
* @see DocumentationService::$automatic_registration
* @param bool
*/
public static function set_automatic_registration($bool = true) {
self::$automatic_registration = $bool;
if(!$bool) {
// remove current registed modules when disabling automatic registration
// needed to avoid caching issues when running all the tests
self::$registered_modules = array();
}
}
/**
* Is automatic registration of modules enabled.
*
* @return bool
*/
public static function automatic_registration_enabled() {
return self::$automatic_registration;
}
/**
* Return the modules which are listed for documentation. Optionally only get
* modules which have a version or language given
*
* @return array
*/
public static function get_registered_modules($version = false, $lang = false) {
$output = array();
if($modules = self::$registered_modules) {
if($version || $lang) {
foreach($modules as $module) {
if(self::is_registered_module($module->getModuleFolder(), $version, $lang)) {
$output[] = $module;
}
}
}
else {
$output = $modules;
}
}
return $output;
}
/**
* Check to see if a module is registered with the documenter
*
* @param String $module module name
* @param String $version version
* @param String $lang language
*
* @return DocumentationEntity $module the registered module
*/
public static function is_registered_module($module, $version = false, $lang = false) {
$check = ($module instanceof DocumentationEntity) ? $module->getModuleFolder() : (string) $module;
if(isset(self::$registered_modules[$check])) {
$module = self::$registered_modules[$check];
if(($lang && !$module->hasLanguage($lang)) || ($version && !$module->hasVersion($version))) {
return false;
}
return $module;
}
return false;
}
/**
* Register a module to be included in the documentation. To unregister a module
* use {@link DocumentationService::unregister()}. Must include the trailing slash
*
* @param String $module Name of module to register
* @param String $path Path to documentation root.
* @param Float $version Version of module.
* @param String $title Nice title to use
* @param bool $major is this a major release
*
* @throws InvalidArgumentException
*
* @return DocumentationEntity
*/
public static function register($module, $path, $version = '', $title = false, $major = false) {
if(!file_exists($path)) throw new InvalidArgumentException(sprintf('Path "%s" doesn\'t exist', $path));
// add the module to the registered array
if(!isset(self::$registered_modules[$module])) {
// module is completely new
$entity = new DocumentationEntity($module, $version, $path, $title);
self::$registered_modules[$module] = $entity;
}
else {
// module exists so add the version to it
$entity = self::$registered_modules[$module];
$entity->addVersion($version, $path, true);
}
if($major) {
if(!$version) $version = '';
if(!in_array($version, self::$major_versions)) {
self::$major_versions[] = $version;
}
}
return $entity;
}
/**
* Unregister a module from being included in the documentation. Useful
* for keeping {@link DocumentationService::$automatic_registration} enabled
* but disabling modules which you do not want to show. Combined with a
* {@link Director::isLive()} you can hide modules you don't want a client to see.
*
* If no version or lang specified then the whole module is removed. Otherwise only
* the specified version of the documentation.
*
* @param String $module
* @param String $version
*
* @return bool
*/
public static function unregister($moduleName, $version = '') {
if(isset(self::$registered_modules[$moduleName])) {
$module = self::$registered_modules[$moduleName];
if($version) {
$module->removeVersion($version);
}
else {
// only given a module so unset the whole module
unset(self::$registered_modules[$moduleName]);
}
return true;
}
return false;
}
/**
* Register the docs from off a file system if automatic registration is turned on.
*/
public static function load_automatic_registration() {
if(self::automatic_registration_enabled()) {
$modules = scandir(BASE_PATH);
if($modules) {
foreach($modules as $key => $module) {
if(is_dir(BASE_PATH .'/'. $module) && !in_array($module, self::get_ignored_files(), true)) {
// check to see if it has docs
$docs = BASE_PATH .'/'. $module .'/docs/';
if(is_dir($docs)) {
self::register($module, $docs, '', $module, true);
}
}
}
}
}
}
/**
* Convert a language code to a 'nice' text string. Uses the
* {@link self::$language_mapping} array combined with translatable.
*
* @param String $code code
*/
public static function get_language_title($lang) {
return (isset(self::$language_mapping[$lang])) ? _t("DOCUMENTATIONSERVICE.LANG-$lang", self::$language_mapping[$lang]) : $lang;
}
/**
* Find a documentation page given a path and a file name. It ignores the extensions
* and simply compares the title.
*
* Name may also be a path /install/foo/bar.
*
* @param DocumentationEntity
* @param array exploded url string
*
* @return String|false - File path
*/
static function find_page($module, $path) {
if($module = self::is_registered_module($module)) {
return self::find_page_recursive($module->getPath(), $path);
}
return false;
}
/**
* Recursive function for finding the goal of a path to a documentation
* page
*
* @return string
*/
private static function find_page_recursive($base, $goal) {
$handle = opendir($base);
$name = strtolower(array_shift($goal));
if(!$name || $name == '/') $name = 'index';
if($handle) {
$extensions = DocumentationService::get_valid_extensions();
// ensure we end with a slash
$base = rtrim($base, '/') .'/';
while (false !== ($file = readdir($handle))) {
if(in_array($file, DocumentationService::get_valid_extensions())) continue;
$formatted = strtolower($file);
// if the name has a . then take the substr
$formatted = ($pos = strrpos($formatted, '.')) ? substr($formatted, 0, $pos) : $formatted;
if($dot = strrpos($name, '.')) {
if(in_array(substr($name, $dot), self::get_valid_extensions())) {
$name = substr($name, 0, $dot);
}
}
// the folder is the one that we are looking for.
if(strtolower($name) == strtolower($formatted)) {
// if this file is a directory we could be displaying that
// or simply moving towards the goal.
if(is_dir($base . $file)) {
$base = $base . trim($file, '/') .'/';
// if this is a directory check that there is any more states to get
// to in the goal. If none then what we want is the 'index.md' file
if(count($goal) > 0) {
return self::find_page_recursive($base, $goal);
}
else {
// recurse but check for an index.md file next time around
return self::find_page_recursive($base, array('index'));
}
}
else {
// goal state. End of recursion.
// tidy up the URLs with single trailing slashes
$result = $base . ltrim($file, '/');
if(is_dir($result)) $result = (rtrim($result, '/') . '/');
return $result;
}
}
}
}
closedir($handle);
return false;
}
/**
* String helper for cleaning a file name to a readable version.
*
* @param String $name to convert
*
* @return String $name output
*/
public static function clean_page_name($name) {
// remove dashs and _
$name = str_replace(array('-', '_'), ' ', $name);
// remove extension
$name = self::trim_extension_off($name);
// if it starts with a number strip and contains a space strip it off
if(strpos($name, ' ') !== false) {
$space = strpos($name, ' ');
$short = substr($name, 0, $space);
if(is_numeric($short)) {
$name = substr($name, $space);
}
}
// convert first letter
return ucfirst(trim($name));
}
/**
* Helper function to strip the extension off.
* Warning: Doesn't work if the filename includes dots,
* but no extension, e.g. "2.4.0-alpha" will return "2.4".
*
* @param string
*
* @return string
*/
public static function trim_extension_off($name) {
$hasExtension = strrpos($name, '.');
if($hasExtension !== false && $hasExtension > 0) {
$shorted = substr($name, $hasExtension);
// can remove the extension only if we know how
// to read it again
if(in_array(rtrim($shorted, '/'), self::get_valid_extensions())) {
$name = substr($name, 0, $hasExtension);
}
}
return $name;
}
/**
* Return the children from a given module sorted by Title using natural ordering.
* It is used for building the tree of the page.
*
* @param DocumentationEntity path
* @param string - an optional path within a module
* @param bool enable several recursive calls (more than 1 level)
*
* @throws Exception
* @return DataObjectSet
*/
public static function get_pages_from_folder($module, $relativePath = false, $recursive = true) {
// var_dump("START: get pages from $module | $relativePath");
$output = new DataObjectSet();
$pages = array();
if(!$module instanceof DocumentationEntity) user_error("get_pages_from_folder must be passed a module", E_USER_ERROR);
if(self::is_registered_module($module)) {
self::get_pages_from_folder_recursive($module->getPath(), $relativePath, $recursive, $pages);
}
else {
return user_error("$module is not registered", E_USER_WARNING);
}
if(count($pages) > 0) {
natsort($pages);
foreach($pages as $key => $path) {
// get file name from the path
$file = ($pos = strrpos($path, '/')) ? substr($path, $pos + 1) : $path;
$page = new DocumentationPage();
$page->setTitle(self::clean_page_name($file));
$relative = str_replace($module->getPath(), '', $path);
$page->setEntity($module);
$page->setRelativePath($relative);
// var_dump("ADDING FILE: ". $relative . " [$path]");
$output->push($page);
}
}
// var_dump("END get pages");
return $output;
}
/**
* Recursively search through $folder
*
*/
private static function get_pages_from_folder_recursive($base, $relative, $recusive, &$pages) {
if(!is_dir($base)) throw new Exception(sprintf('%s is not a folder', $folder));
$folder = Controller::join_links($base, $relative);
if(!is_dir($folder)) return false;
$handle = opendir($folder);
if($handle) {
$extensions = self::get_valid_extensions();
$ignore = self::get_ignored_files();
$files = array();
while (false !== ($file = readdir($handle))) {
if(!in_array($file, $ignore)) {
$path = Controller::join_links($folder, $file);
$relativeFilePath = Controller::join_links($relative, $file);
if(is_dir($path)) {
$pages[] = $relativeFilePath;
if($recusive) self::get_pages_from_folder_recursive($base, $relativeFilePath, $recusive, $pages);
}
else if(in_array(substr($file, (strrpos($file, '.'))), $extensions)) {
$pages[] = $relativeFilePath;
}
}
}
}
closedir($handle);
}
}