612 lines
20 KiB
PHP
612 lines
20 KiB
PHP
<?php
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/**
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* Define a constant for the name of the manifest file
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*/
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if(!defined('MANIFEST_FILE')) define("MANIFEST_FILE", TEMP_FOLDER . "/manifest-" . str_replace('.php','',basename($_SERVER['SCRIPT_FILENAME'])));
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/**
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* The ManifestBuilder class generates the manifest file and keeps it fresh.
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*
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* The manifest file is a PHP include that contains global variables that
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* represent the collected contents of the application:
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* - all classes ({@link __autoload()})
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* - all templates ({@link SSViewer})
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* - all _config.php files
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*
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* Traversing the filesystem to collect this information on everypage.
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* This information is cached so that it need not be regenerated on every
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* pageview.
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*
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* {@link ManifestBuilder::compileManifest()} is called by {@link main.php}
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* whenever {@link ManifestBuilder::staleManifest()} returns true.
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*
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* @see main.php, __autoload(), SSViewer, Requirements::themedCSS()
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* @package sapphire
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* @subpackage core
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*/
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class ManifestBuilder {
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static $restrict_to_modules = array();
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static $extendsArray = array();
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static $classArray = array();
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static $implementsArray = array();
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/**
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* @var array $ignore_files Full filenames (without directory-path) which
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* should be ignored by the manifest.
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*/
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public static $ignore_files = array(
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'main.php',
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'cli-script.php',
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'install.php',
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'index.php',
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'check-php.php',
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'rewritetest.php'
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);
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/**
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* @var array $ignore_folders Foldernames (without path) which
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* should be ignored by the manifest.
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*/
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public static $ignore_folders = array(
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'mysql',
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'assets',
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'shortstat',
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'HTML',
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);
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/**
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* @var int $cache_expiry_mins Specifies the time (in minutes) until a rebuild
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* of the manifest cache is forced.
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* @usedby self::staleManifest()
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*/
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public static $cache_expiry_mins = 60;
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/**
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* Returns true if the manifest file should be regenerated,
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* by asserting one of the following conditions:
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* - Manifest cache file doesn't exist
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* - The modification time of the webroot folder is newer than the cache file
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* - The cache file is older than {@link self::$cache_expiry_mins}
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* - A cache rebuild is forced by the "?flush=1" URL parameter
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*
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* Checked on every request handled by SilverStripe in main.php or cli-script.php.
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*
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* @return bool Returns TRUE if the manifest file should be regenerated, otherwise FALSE.
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*/
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static function staleManifest() {
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$lastEdited = filemtime(BASE_PATH);
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return (
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!file_exists(MANIFEST_FILE)
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|| (filemtime(MANIFEST_FILE) < $lastEdited)
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|| (filemtime(MANIFEST_FILE) < time() - 60 * self::$cache_expiry_mins)
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|| isset($_GET['flush'])
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);
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}
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/**
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* Generates a new manifest file and saves it to {@link MANIFEST_FILE}.
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*/
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static function compileManifest() {
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// Config manifest
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$baseDir = dirname($_SERVER['SCRIPT_FILENAME']) . "/..";
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$baseDir = ereg_replace("/[^/]+/\\.\\.", "", $baseDir);
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$baseDir = preg_replace("/\\\\/", "/", $baseDir);
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$manifestInfo = self::get_manifest_info($baseDir);
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// Connect to the database and get the database config
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global $databaseConfig;
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DB::connect($databaseConfig);
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if(DB::isActive()) {
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$tableList = DB::getConn()->tableList();
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self::update_db_tables($tableList, $manifestInfo['globals']['_ALL_CLASSES']);
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}
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$manifest = self::generate_php_file($manifestInfo);
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if($fh = fopen(MANIFEST_FILE, "w")) {
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fwrite($fh, $manifest);
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fclose($fh);
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} else {
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die("Cannot write manifest file! Check permissions of " .
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MANIFEST_FILE);
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}
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}
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/**
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* Turn an array produced by get_manifest_info() into the content of the manifest PHP include
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*/
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static function generate_php_file($manifestInfo) {
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$output = "<?php\n";
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foreach($manifestInfo['globals'] as $globalName => $globalVal) {
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$output .= "\$$globalName = " . var_export($globalVal, true) . ";\n\n";
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}
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foreach($manifestInfo['require_once'] as $requireItem) {
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$output .= "require_once(\"$requireItem\");\n";
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}
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return $output;
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}
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/**
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* Return an array containing information for the manifest
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* @param $baseDir A
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*/
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static function get_manifest_info($baseDir, $tableList = null) {
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// locate and include the exclude files
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$topLevel = scandir($baseDir);
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foreach($topLevel as $file) {
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if($file[0] == '.') continue
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$fullPath = '';
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$fullPath = $baseDir . '/' . $file;
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if(@is_dir($fullPath . '/') && file_exists($fullPath . '/_exclude.php')) {
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require_once($fullPath . '/_exclude.php');
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}
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}
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// Class manifest
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$classManifest = array();
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if(is_array(self::$restrict_to_modules) && count(self::$restrict_to_modules)) {
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// $restrict_to_modules is set, so we include only those specified
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// modules
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foreach(self::$restrict_to_modules as $module)
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ManifestBuilder::getClassManifest($baseDir . '/' . $module,
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$classManifest);
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} else {
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// Include all directories which have an _config.php file but don't
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// have an _manifest_exclude file
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if($filename[0] == '.') continue;
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if(@is_dir("$baseDir/$filename") &&
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file_exists("$baseDir/$filename/_config.php") &&
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!file_exists("$baseDir/$filename/_manifest_exclude")) {
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ManifestBuilder::getClassManifest("$baseDir/$filename",
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$classManifest);
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}
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}
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}
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$manifestInfo["globals"]["_CLASS_MANIFEST"] = $classManifest;
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// Load the manifest in, so that the autoloader works
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global $_CLASS_MANIFEST;
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$_CLASS_MANIFEST = $classManifest;
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// _config.php manifest
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if($filename[0] == '.') continue;
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if(@is_dir("$baseDir/$filename/") &&
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file_exists("$baseDir/$filename/_config.php") &&
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!file_exists("$baseDir/$filename/_manifest_exclude")) {
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$manifestInfo["require_once"][] = "$baseDir/$filename/_config.php";
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// Include this so that we're set up for connecting to the database
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// in the rest of the manifest builder
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require_once("$baseDir/$filename/_config.php");
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}
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}
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if(!project())
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user_error("\$project isn't set", E_USER_WARNING);
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// Template & CSS manifest
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$templateManifest = array();
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$cssManifest = array();
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// Only include directories if they have an _config.php file
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if($filename[0] == '.') continue;
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if($filename != 'themes' && @is_dir("$baseDir/$filename") && file_exists("$baseDir/$filename/_config.php")) {
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ManifestBuilder::getTemplateManifest($baseDir, $filename, $templateManifest, $cssManifest);
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}
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}
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// Get themes
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if(file_exists("$baseDir/themes")) {
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$themeDirs = scandir("$baseDir/themes");
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foreach($themeDirs as $themeDir) {
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if(substr($themeDir,0,1) == '.') continue;
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// The theme something_forum is understood as being a part of the theme something
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$themeName = strtok($themeDir, '_');
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ManifestBuilder::getTemplateManifest($baseDir, "themes/$themeDir", $templateManifest, $cssManifest, $themeName);
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}
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}
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// Ensure that any custom templates get favoured
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ManifestBuilder::getTemplateManifest($baseDir, project(), $templateManifest, $cssManifest);
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$manifestInfo["globals"]["_TEMPLATE_MANIFEST"] = $templateManifest;
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$manifestInfo["globals"]["_CSS_MANIFEST"] = $cssManifest;
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// Database manifest
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$allClasses = ManifestBuilder::allClasses($classManifest, $tableList);
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$manifestInfo["globals"]["_ALL_CLASSES"] = $allClasses;
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global $_ALL_CLASSES;
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$_ALL_CLASSES = $allClasses;
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return $manifestInfo;
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}
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/**
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* Generates the class manifest - a list of all the PHP files in the
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* application
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*
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* @param string $folder The folder to traverse (recursively)
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* @param array $classMap The already built class map
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*/
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private static function getClassManifest($folder, &$classMap) {
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$items = scandir($folder);
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if($items) foreach($items as $item) {
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// Skip some specific PHP files
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if(in_array($item, self::$ignore_files)) continue;
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// ignore hidden files and folders
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if(substr($item,0,1) == '.') continue;
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// ignore files without php-extension
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if(substr($item,-4) != '.php' && !@is_dir("$folder/$item")) continue;
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// ignore files and folders with underscore-prefix
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if(substr($item,0,1) == '_') continue;
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// ignore certain directories
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if(@is_dir("$folder/$item") && in_array($item, self::$ignore_folders)) continue;
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// ignore directories with _manifest_exlude file
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if(@is_dir("$folder/$item") && file_exists("$folder/$item/_manifest_exclude")) continue;
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// i18n: ignore language files (loaded on demand)
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if($item == 'lang' && @is_dir("$folder/$item") && ereg_replace("/[^/]+/\\.\\.","",$folder.'/..') == Director::baseFolder()) continue;
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if(@is_dir("$folder/$item")) {
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// recurse into directories (if not in $ignore_folders)
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ManifestBuilder::getClassManifest("$folder/$item", $classMap);
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} else {
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// include item in the manifest
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$itemCode = substr($item,0,-4);
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// if $itemCode is already in manifest, check if the two files do really contain the same class
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if($classMap && array_key_exists($itemCode, $classMap)) {
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$regex = '/class\s' . $itemCode .'/';
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if(
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preg_match($regex, file_get_contents("$folder/$item"))
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&& preg_match($regex, file_get_contents($classMap[$itemCode]))
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) {
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user_error("Warning: there are two '$itemCode' files both containing the same class: '$folder/$item' and '{$classMap[$itemCode]}'.
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This might mean that the wrong code is being used.", E_USER_WARNING);
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} else {
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user_error("Warning: there are two '$itemCode' files with the same filename: '$folder/$item' and '{$classMap[$itemCode]}'.
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This might mean that the wrong code is being used.", E_USER_NOTICE);
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}
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} else {
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$classMap[$itemCode] = "$folder/$item";
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}
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}
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}
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}
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/**
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* Generates the template manifest - a list of all the .SS files in the
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* application
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*/
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private static function getTemplateManifest($baseDir, $folder, &$templateManifest, &$cssManifest, $themeName = null) {
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$items = scandir("$baseDir/$folder");
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if($items) foreach($items as $item) {
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if(substr($item,0,1) == '.') continue;
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if(substr($item,-3) == '.ss') {
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$templateName = substr($item, 0, -3);
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$templateType = substr($folder,strrpos($folder,'/')+1);
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if($templateType == "templates") $templateType = "main";
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if($themeName) {
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$templateManifest[$templateName]['themes'][$themeName][$templateType] = "$baseDir/$folder/$item";
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} else {
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$templateManifest[$templateName][$templateType] = "$baseDir/$folder/$item";
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}
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} else if(substr($item,-4) == '.css') {
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$cssName = substr($item, 0, -4);
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// Debug::message($item);
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if($themeName) {
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$cssManifest[$cssName]['themes'][$themeName] = "$folder/$item";
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} else {
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$cssManifest[$cssName]['unthemed'] = "$folder/$item";
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}
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} else if(@is_dir("$baseDir/$folder/$item")) {
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ManifestBuilder::getTemplateManifest($baseDir, "$folder/$item", $templateManifest, $cssManifest, $themeName);
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}
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}
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}
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/**
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* Include everything, so that actually *all* classes are available and
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* build a map of classes and their subclasses and the information if
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* the class has a database table
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*
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* @param $classManifest An array of all Sapphire classes; keys are class names and values are filenames
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* @param $tables An array of the tables that exist in the database
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*
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* @return array Returns an array that holds all class relevant
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* information.
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*/
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private static function allClasses($classManifest, $tables = null) {
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self::$classArray = array();
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self::$extendsArray = array();
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self::$implementsArray = array();
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// Include everything, so we actually have *all* classes
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foreach($classManifest as $file) {
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$b = basename($file);
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if($b != 'cli-script.php' && $b != 'main.php')
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self::parse_file($file);
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}
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$allClasses["parents"] = self::find_parents();
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$allClasses["children"] = self::find_children();
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$allClasses["implementors"] = self::$implementsArray;
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foreach(self::$classArray as $class => $info) {
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$allClasses['exists'][$class] = $class;
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if(isset($tables[strtolower($class)])) $allClasses['hastable'][$class] = $class;
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}
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// Build a map of classes and their subclasses
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$_classes = get_declared_classes();
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foreach($_classes as $class) {
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$allClasses['exists'][$class] = $class;
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if(isset($tables[strtolower($class)])) $allClasses['hastable'][$class] = $class;
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foreach($_classes as $subclass) {
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if(is_subclass_of($class, $subclass)) $allClasses['parents'][$class][$subclass] = $subclass;
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if(is_subclass_of($subclass, $class)) $allClasses['children'][$class][$subclass] = $subclass;
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}
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}
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return $allClasses;
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}
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/**
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* Parses a php file and adds any class or interface information into self::$classArray
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*
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* @param string $filename
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*/
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private static function parse_file($filename) {
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$file = file_get_contents($filename);
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$implements = "";
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$extends = "";
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$class="";
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if(!$file) die("Couldn't open $filename<br />");
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// We cache the parse results of each file, since only a few files will have changed between flushings
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// And, although it's accurate, TokenisedRegularExpression isn't particularly fast
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$parseCacheFile = TEMP_FOLDER . "/manifestClassParse-" . str_replace(array("/",":", "\\"),"_", realpath($filename));
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if(!file_exists($parseCacheFile) || filemtime($parseCacheFile) < filemtime($filename)) {
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$tokens = token_get_all($file);
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$classes = self::getClassDefParser()->findAll($tokens);
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$interfaces = self::getInterfaceDefParser()->findAll($tokens);
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$cacheContent = '<?php
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$classes = ' . var_export($classes,true) . ';
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$interfaces = ' . var_export($interfaces,true) . ';';
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if($fh = fopen($parseCacheFile,'w')) {
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fwrite($fh, $cacheContent);
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fclose($fh);
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}
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} else {
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include($parseCacheFile);
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}
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foreach($classes as $class) {
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$className = $class['className'];
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unset($class['className']);
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$class['file'] = $filename;
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if(!isset($class['extends'])) $class['extends'] = null;
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if($class['extends']) self::$extendsArray[$class['extends']][$className] = $className;
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if(isset($class['interfaces'])) foreach($class['interfaces'] as $interface) {
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self::$implementsArray[$interface][$className] = $className;
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}
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self::$classArray[$className] = $class;
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}
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foreach($interfaces as $interface) {
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$className = $interface['interfaceName'];
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unset($interface['interfaceName']);
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$interface['file'] = $filename;
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if(!isset($interface['extends'])) $interface['extends'] = null;
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self::$classArray[$className] = $interface;
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}
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}
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/**
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* Returns a {@link TokenisedRegularExpression} object that will parse class definitions
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* @return TokenisedRegularExpression
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*/
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public static function getClassDefParser() {
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return new TokenisedRegularExpression(array(
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0 => T_CLASS,
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1 => T_WHITESPACE,
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2 => array(T_STRING, 'can_jump_to' => array(7, 14), 'save_to' => 'className'),
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3 => T_WHITESPACE,
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4 => T_EXTENDS,
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5 => T_WHITESPACE,
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6 => array(T_STRING, 'save_to' => 'extends', 'can_jump_to' => 14),
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7 => T_WHITESPACE,
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8 => T_IMPLEMENTS,
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9 => T_WHITESPACE,
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10 => array(T_STRING, 'can_jump_to' => 14, 'save_to' => 'interfaces[]'),
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11 => array(T_WHITESPACE, 'optional' => true),
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12 => array(',', 'can_jump_to' => 10),
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13 => array(T_WHITESPACE, 'can_jump_to' => 10),
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14 => array(T_WHITESPACE, 'optional' => true),
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15 => '{',
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));
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}
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/**
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* Returns a {@link TokenisedRegularExpression} object that will parse class definitions
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* @return TokenisedRegularExpression
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*/
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public static function getInterfaceDefParser() {
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return new TokenisedRegularExpression(array(
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0 => T_INTERFACE,
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1 => T_WHITESPACE,
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2 => array(T_STRING, 'can_jump_to' => 7, 'save_to' => 'interfaceName'),
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3 => T_WHITESPACE,
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4 => T_EXTENDS,
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5 => T_WHITESPACE,
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6 => array(T_STRING, 'save_to' => 'extends'),
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7 => array(T_WHITESPACE, 'optional' => true),
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8 => '{',
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));
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}
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/**
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* Moves through self::$classArray and creates an array containing parent data
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*
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* @return array
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*/
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private static function find_parents() {
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$parentArray = array();
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foreach(self::$classArray as $class => $info) {
|
|
$extendArray = array();
|
|
|
|
$parent = $info["extends"];
|
|
|
|
while($parent) {
|
|
$extendArray[$parent] = $parent;
|
|
$parent = isset(self::$classArray[$parent]["extends"]) ? self::$classArray[$parent]["extends"] : null;
|
|
}
|
|
$parentArray[$class] = array_reverse($extendArray);
|
|
}
|
|
return $parentArray;
|
|
}
|
|
|
|
/**
|
|
* Iterates through self::$classArray and returns an array with any descendant data
|
|
*
|
|
* @return array
|
|
*/
|
|
private static function find_children() {
|
|
$childrenArray = array();
|
|
foreach(self::$extendsArray as $class => $children) {
|
|
$allChildren = $children;
|
|
foreach($children as $childName) {
|
|
$allChildren = array_merge($allChildren, self::up_children($childName));
|
|
}
|
|
$childrenArray[$class] = $allChildren;
|
|
}
|
|
return $childrenArray;
|
|
}
|
|
|
|
/**
|
|
* Helper function to find all children of give class
|
|
*
|
|
* @param string $class
|
|
* @return array
|
|
*/
|
|
private static function get_children($class) {
|
|
return isset(self::$extendsArray[$class]) ? self::$extendsArray[$class] : array();
|
|
}
|
|
|
|
/**
|
|
* Returns a flat array with all children of a given class
|
|
*
|
|
* @param string $class
|
|
* @param array $results
|
|
*/
|
|
function up_children($class) {
|
|
$children = self::get_Children($class);
|
|
$results = $children;
|
|
foreach($children as $className) {
|
|
$results = array_merge($results, self::up_children($className));
|
|
}
|
|
return $results;;
|
|
}
|
|
|
|
/**
|
|
* Updates the active table list in the class info in the manifest, but leaves everything else as-is.
|
|
* Much quicker to run than compileManifest :-)
|
|
*
|
|
* @param $tableList The list of tables to load into the manifest
|
|
* @param $allClassesArray The $_ALL_CLASSES array that should be updated
|
|
*/
|
|
static function update_db_tables($tableList, &$allClassesArray) {
|
|
if(!isset($allClassesArray['exists'])) return;
|
|
|
|
$allClassesArray['hastable'] = array();
|
|
|
|
$tables = array();
|
|
foreach($tableList as $table) $tables[$table] = true;
|
|
|
|
// We need to iterate through the full class lists, because the table names come out in lowercase
|
|
foreach($allClassesArray['exists'] as $class) {
|
|
if(isset($tables[strtolower($class)])) $allClassesArray['hastable'][$class] = $class;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Write the manifest file, containing the updated values in the applicable globals
|
|
*/
|
|
static function write_manifest() {
|
|
global $_CLASS_MANIFEST, $_TEMPLATE_MANIFEST, $_CSS_MANIFEST, $_ALL_CLASSES;
|
|
|
|
$manifest = "\$_CLASS_MANIFEST = " . var_export($_CLASS_MANIFEST, true) . ";\n";
|
|
|
|
// Config manifest
|
|
$baseDir = dirname($_SERVER['SCRIPT_FILENAME']) . "/..";
|
|
$baseDir = ereg_replace("/[^/]+/\\.\\.","",$baseDir);
|
|
$baseDir = preg_replace("/\\\\/", "/", $baseDir);
|
|
$topLevel = scandir($baseDir);
|
|
|
|
foreach($topLevel as $filename) {
|
|
if($filename[0] == '.') continue;
|
|
if(@is_dir("$baseDir/$filename/") && file_exists("$baseDir/$filename/_config.php")) {
|
|
$manifest .= "require_once(\"$baseDir/$filename/_config.php\");\n";
|
|
}
|
|
}
|
|
|
|
$manifest .= "\$_TEMPLATE_MANIFEST = " . var_export($_TEMPLATE_MANIFEST, true) . ";\n";
|
|
$manifest .= "\$_CSS_MANIFEST = " . var_export($_CSS_MANIFEST, true) . ";\n";
|
|
$manifest .= "\$_ALL_CLASSES = " . var_export($_ALL_CLASSES, true) . ";\n";
|
|
$manifest = "<?php\n$manifest\n?>";
|
|
|
|
if($fh = fopen(MANIFEST_FILE,"w")) {
|
|
fwrite($fh, $manifest);
|
|
fclose($fh);
|
|
|
|
} else {
|
|
die("Cannot write manifest file! Check permissions of " . MANIFEST_FILE);
|
|
}
|
|
}
|
|
|
|
static function includeEverything() {
|
|
global $_CLASS_MANIFEST;
|
|
foreach($_CLASS_MANIFEST as $classFile) require_once($classFile);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
?>
|