<?php /* * This file is part of Mustache.php. * * (c) 2010-2017 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Mustache Template filesystem Loader implementation. * * A FilesystemLoader instance loads Mustache Template source from the filesystem by name: * * $loader = new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views'); * $tpl = $loader->load('foo'); // equivalent to `file_get_contents(dirname(__FILE__).'/views/foo.mustache'); * * This is probably the most useful Mustache Loader implementation. It can be used for partials and normal Templates: * * $m = new Mustache(array( * 'loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views'), * 'partials_loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views/partials'), * )); */ class Mustache_Loader_FilesystemLoader implements Mustache_Loader { private $baseDir; private $extension = '.mustache'; private $templates = array(); /** * Mustache filesystem Loader constructor. * * Passing an $options array allows overriding certain Loader options during instantiation: * * $options = array( * // The filename extension used for Mustache templates. Defaults to '.mustache' * 'extension' => '.ms', * ); * * @throws Mustache_Exception_RuntimeException if $baseDir does not exist * * @param string $baseDir Base directory containing Mustache template files * @param array $options Array of Loader options (default: array()) */ public function __construct($baseDir, array $options = array()) { $this->baseDir = $baseDir; if (strpos($this->baseDir, '://') === false) { $this->baseDir = realpath($this->baseDir); } if ($this->shouldCheckPath() && !is_dir($this->baseDir)) { throw new Mustache_Exception_RuntimeException(sprintf('FilesystemLoader baseDir must be a directory: %s', $baseDir)); } if (array_key_exists('extension', $options)) { if (empty($options['extension'])) { $this->extension = ''; } else { $this->extension = '.' . ltrim($options['extension'], '.'); } } } /** * Load a Template by name. * * $loader = new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views'); * $loader->load('admin/dashboard'); // loads "./views/admin/dashboard.mustache"; * * @param string $name * * @return string Mustache Template source */ public function load($name) { if (!isset($this->templates[$name])) { $this->templates[$name] = $this->loadFile($name); } return $this->templates[$name]; } /** * Helper function for loading a Mustache file by name. * * @throws Mustache_Exception_UnknownTemplateException If a template file is not found * * @param string $name * * @return string Mustache Template source */ protected function loadFile($name) { $fileName = $this->getFileName($name); if ($this->shouldCheckPath() && !file_exists($fileName)) { throw new Mustache_Exception_UnknownTemplateException($name); } return file_get_contents($fileName); } /** * Helper function for getting a Mustache template file name. * * @param string $name * * @return string Template file name */ protected function getFileName($name) { $fileName = $this->baseDir . '/' . $name; if (substr($fileName, 0 - strlen($this->extension)) !== $this->extension) { $fileName .= $this->extension; } return $fileName; } /** * Only check if baseDir is a directory and requested templates are files if * baseDir is using the filesystem stream wrapper. * * @return bool Whether to check `is_dir` and `file_exists` */ protected function shouldCheckPath() { return strpos($this->baseDir, '://') === false || strpos($this->baseDir, 'file://') === 0; } }