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MDL-40995 simplify minify integration and fix all known issues
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| <?php | ||
| // This file is part of Moodle - http://moodle.org/ | ||
| // | ||
| // Moodle is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Moodle is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with Moodle. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| /** | ||
| * JS and CSS compression. | ||
| * | ||
| * @package core | ||
| * @copyright 2013 Petr Skoda {@link http://skodak.org} | ||
| * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | ||
| */ | ||
|
|
||
| defined('MOODLE_INTERNAL') || die(); | ||
|
|
||
| /** | ||
| * Collection of JS and CSS compression methods. | ||
| */ | ||
| class core_minify { | ||
| /** | ||
| * Minify JS code. | ||
| * | ||
| * @param string $content | ||
| * @return string minified JS code | ||
| */ | ||
| public static function js($content) { | ||
| global $CFG; | ||
| require_once("$CFG->libdir/minify/lib/JSMinPlus.php"); | ||
|
|
||
| try { | ||
| ob_start(); // JSMinPlus just echos errors, weird... | ||
| $compressed = JSMinPlus::minify($content); | ||
| if ($compressed !== false) { | ||
| ob_end_clean(); | ||
| return $compressed; | ||
| } | ||
| $error = ob_get_clean(); | ||
|
|
||
| } catch (Exception $e) { | ||
| ob_end_clean(); | ||
| $error = $e->getMessage(); | ||
| } | ||
|
|
||
| $return = <<<EOD | ||
| try {console.log('Error: Minimisation of JavaScript failed!');} catch (e) {} | ||
| // Error: $error | ||
| // Problem detected during JavaScript minimisation, please review the following code | ||
| // ================================================================================= | ||
| EOD; | ||
|
|
||
| return $return.$content; | ||
| } | ||
|
|
||
| /** | ||
| * Minify JS files. | ||
| * | ||
| * @param array $files | ||
| * @return string minified JS code | ||
| */ | ||
| public static function js_files(array $files) { | ||
| if (empty($files)) { | ||
| return ''; | ||
| } | ||
|
|
||
| $compressed = array(); | ||
| foreach ($files as $file) { | ||
| $content = file_get_contents($file); | ||
| if ($content === false) { | ||
| $compressed[] = "\n\n// Cannot read JS file ".basename(dirname(dirname($file))).'/'.basename(dirname($file)).'/'.basename($file)."\n\n"; | ||
| continue; | ||
| } | ||
| $compressed[] = self::js($content); | ||
| } | ||
|
|
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| return implode("\n", $compressed); | ||
| } | ||
|
|
||
| /** | ||
| * Minify CSS code. | ||
| * | ||
| * @param string $content | ||
| * @return string minified CSS | ||
| */ | ||
| public static function css($content) { | ||
| global $CFG; | ||
| require_once("$CFG->libdir/minify/lib/Minify/CSS/Compressor.php"); | ||
|
|
||
| $error = 'unknown'; | ||
| try { | ||
| $compressed = Minify_CSS_Compressor::process($content); | ||
| if ($compressed !== false) { | ||
| return $compressed; | ||
| } | ||
|
|
||
| } catch (Exception $e) { | ||
| $error = $e->getMessage(); | ||
| } | ||
|
|
||
| $return = <<<EOD | ||
| /* Error: $error */ | ||
| /* Problem detected during CSS minimisation, please review the following code */ | ||
| /* ========================================================================== */ | ||
| EOD; | ||
|
|
||
| return $return.$content; | ||
| } | ||
|
|
||
| /** | ||
| * Minify CSS files. | ||
| * | ||
| * @param array $files | ||
| * @return string minified CSS code | ||
| */ | ||
| public static function css_files(array $files) { | ||
| if (empty($files)) { | ||
| return ''; | ||
| } | ||
|
|
||
| $compressed = array(); | ||
| foreach ($files as $file) { | ||
| $content = file_get_contents($file); | ||
| if ($content === false) { | ||
| $compressed[] = "\n\n/* Cannot read CSS file ".basename(dirname(dirname($file))).'/'.basename(dirname($file)).'/'.basename($file)."*/\n\n"; | ||
| continue; | ||
| } | ||
| $compressed[] = self::css($content); | ||
| } | ||
|
|
||
| return implode("\n", $compressed); | ||
| } | ||
| } |
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