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<?php |
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/** |
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* @package CleverStyle Framework |
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* @author Nazar Mokrynskyi <[email protected]> |
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* @copyright Copyright (c) 2014-2016, Nazar Mokrynskyi |
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* @license MIT License, see license.txt |
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*/ |
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namespace cs\Page\Includes; |
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use |
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cs\Event, |
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cs\Page\Includes_processing; |
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trait Cache { |
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/** |
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* @param \cs\Config $Config |
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* @param \cs\Language $L |
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*/ |
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protected function rebuild_cache ($Config, $L) { |
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if (!file_exists("$this->pcache_basename_path.json")) { |
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$this->rebuild_cache_normal($Config); |
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Event::instance()->fire('System/Page/rebuild_cache'); |
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$this->rebuild_cache_optimized(); |
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$this->rebuild_cache_webcomponents_polyfill(); |
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} |
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/** |
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* We take hash of languages in order to take into account when list of active languages has changed (and generate cache for all acive languages) |
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*/ |
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$languages_hash = $this->get_hash_of(implode('', $Config->core['active_languages'])); |
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if (!file_exists(PUBLIC_CACHE."/languages-$languages_hash.json")) { |
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$this->rebuild_cache_languages($Config, $L, $languages_hash); |
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} |
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} |
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/** |
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* @param string $content |
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* |
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* @return string |
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*/ |
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protected function get_hash_of ($content) { |
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return substr(md5($content), 0, 5); |
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} |
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/** |
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* @param \cs\Config $Config |
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*/ |
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protected function rebuild_cache_normal ($Config) { |
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list($dependencies, $includes_map) = $this->get_includes_dependencies_and_map($Config); |
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$compressed_includes_map = []; |
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$not_embedded_resources_map = []; |
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/** @noinspection ForeachSourceInspection */ |
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foreach ($includes_map as $filename_prefix => $local_includes) { |
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$compressed_includes_map[$filename_prefix] = $this->cache_compressed_includes_files( |
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"$this->pcache_basename_path:".str_replace('/', '+', $filename_prefix), |
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$local_includes, |
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$Config->core['vulcanization'], |
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$not_embedded_resources_map |
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); |
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} |
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unset($includes_map, $filename_prefix, $local_includes); |
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file_put_json("$this->pcache_basename_path.json", [$dependencies, $compressed_includes_map, array_filter($not_embedded_resources_map)]); |
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} |
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protected function rebuild_cache_optimized () { |
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list(, $compressed_includes_map, $preload_source) = file_get_json("$this->pcache_basename_path.json"); |
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$preload = [array_values($compressed_includes_map['System'])]; |
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/** @noinspection ForeachSourceInspection */ |
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foreach ($compressed_includes_map['System'] as $path) { |
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if (isset($preload_source[$path])) { |
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$preload[] = $preload_source[$path]; |
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} |
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} |
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unset($compressed_includes_map['System']); |
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$optimized_includes = array_flip(array_merge(...array_values(array_map('array_values', $compressed_includes_map)))); |
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$preload = array_merge(...$preload); |
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file_put_json("$this->pcache_basename_path.optimized.json", [$optimized_includes, $preload]); |
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} |
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protected function rebuild_cache_webcomponents_polyfill () { |
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$webcomponents_js = file_get_contents(DIR.'/includes/js/WebComponents-polyfill/webcomponents-custom.min.js'); |
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file_put_contents(PUBLIC_CACHE.'/webcomponents.js', $webcomponents_js, LOCK_EX | FILE_BINARY); |
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file_put_contents(PUBLIC_CACHE.'/webcomponents.js.hash', $this->get_hash_of($webcomponents_js), LOCK_EX | FILE_BINARY); |
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} |
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/** |
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* @param \cs\Config $Config |
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* @param \cs\Language $L |
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* @param string $languages_hash |
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*/ |
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protected function rebuild_cache_languages ($Config, $L, $languages_hash) { |
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$current_language = $L->clanguage; |
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$languages_map = []; |
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/** @noinspection ForeachSourceInspection */ |
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foreach ($Config->core['active_languages'] as $language) { |
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$L->change($language); |
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/** @noinspection DisconnectedForeachInstructionInspection */ |
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$translations = _json_encode($L); |
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$language_hash = $this->get_hash_of($translations); |
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$languages_map[$language] = $language_hash; |
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file_put_contents(PUBLIC_CACHE."/languages-$language-$language_hash.js", "define($translations);"); |
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} |
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$L->change($current_language); |
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file_put_json(PUBLIC_CACHE."/languages-$languages_hash.json", $languages_map); |
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} |
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/** |
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* Creates cached version of given HTML, JS and CSS files. |
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* Resulting files names consist of `$filename_prefix` and extension. |
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* |
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* @param string $target_file_path |
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* @param string[][] $includes Array of paths to files, may have keys: `css` and/or `js` and/or `html` |
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* @param bool $vulcanization Whether to put combined files separately or to make includes built-in (vulcanization) |
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* @param string[][] $not_embedded_resources_map Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because |
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* of CSP |
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* |
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* @return array |
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*/ |
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protected function cache_compressed_includes_files ($target_file_path, $includes, $vulcanization, &$not_embedded_resources_map) { |
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$local_includes = []; |
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foreach ($includes as $extension => $files) { |
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$not_embedded_resources = []; |
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$content = $this->cache_compressed_includes_files_single( |
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$extension, |
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$target_file_path, |
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$files, |
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$vulcanization, |
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$not_embedded_resources |
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); |
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foreach ($not_embedded_resources as &$resource) { |
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if (strpos($resource, '/') !== 0) { |
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$resource = "/storage/pcache/$resource"; |
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} |
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} |
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unset($resource); |
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$file_path = "$target_file_path.$extension"; |
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file_put_contents($file_path, $content, LOCK_EX | FILE_BINARY); |
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$relative_path = '/storage/pcache/'.basename($file_path).'?'.$this->get_hash_of($content); |
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$local_includes[$extension] = $relative_path; |
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$not_embedded_resources_map[$relative_path] = $not_embedded_resources; |
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} |
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return $local_includes; |
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} |
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/** |
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* @param string $extension |
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* @param string $target_file_path |
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* @param string[] $files |
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* @param bool $vulcanization Whether to put combined files separately or to make includes built-in (vulcanization) |
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* @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP |
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* |
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* @return string |
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*/ |
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protected function cache_compressed_includes_files_single ($extension, $target_file_path, $files, $vulcanization, &$not_embedded_resources) { |
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$content = ''; |
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switch ($extension) { |
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/** |
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* Insert external elements into resulting css file. |
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* It is needed, because those files will not be copied into new destination of resulting css file. |
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*/ |
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case 'css': |
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/** |
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* @param string $content |
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* @param string $file |
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* |
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* @return string |
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*/ |
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$callback = function ($content, $file) use (&$not_embedded_resources) { |
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return $content.Includes_processing::css(file_get_contents($file), $file, $not_embedded_resources); |
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}; |
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break; |
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/** |
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* Combine css and js files for Web Component into resulting files in order to optimize loading process |
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*/ |
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case 'html': |
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/** |
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* For CSP-compatible HTML files we need to know destination to put there additional JS/CSS files |
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* |
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* @param string $content |
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* @param string $file |
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* |
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* @return string |
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*/ |
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$callback = function ($content, $file) use (&$not_embedded_resources) { |
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return $content.Includes_processing::html( |
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file_get_contents($file), |
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$file, |
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'', |
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true, |
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$not_embedded_resources |
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); |
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}; |
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break; |
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case 'js': |
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/** |
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* @param string $content |
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* @param string $file |
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* |
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* @return string |
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*/ |
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$callback = function ($content, $file) { |
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return $content.Includes_processing::js(file_get_contents($file)); |
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}; |
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if (substr($target_file_path, -7) == ':System') { |
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$content = 'window.cs={};window.requirejs={paths:'._json_encode($this->get_requirejs_paths()).'};'; |
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} |
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} |
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/** @noinspection PhpUndefinedVariableInspection */ |
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$content .= array_reduce($files, $callback); |
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if ($extension == 'html') { |
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$file_path = "$target_file_path-$extension"; |
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$content = Includes_processing::html($content, $file_path, $file_path, $vulcanization); |
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} |
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return $content; |
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} |
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} |
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nazar-pc /
CleverStyle-Framework
