rmrevin\yii\minify\components\JS::process PHP Метод

    protected function process($position, $files)
    {
        $resultFile = sprintf('%s/%s.js', $this->view->minify_path, $this->_getSummaryFilesHash($files));
        if (!file_exists($resultFile)) {
            $js = '';
            foreach ($files as $file => $html) {
                $file = $this->getAbsoluteFilePath($file);
                $content = '';
                if (!file_exists($file)) {
                    \Yii::warning(sprintf('Asset file not found `%s`', $file), __METHOD__);
                } elseif (!is_readable($file)) {
                    \Yii::warning(sprintf('Asset file not readable `%s`', $file), __METHOD__);
                } else {
                    $content .= file_get_contents($file) . ';' . "\n";
                }
                $js .= $content;
            }
            $this->removeJsComments($js);
            if ($this->view->minifyJs) {
                $js = (new \JSMin($js))->min();
            }
            file_put_contents($resultFile, $js);
            if (false !== $this->view->file_mode) {
                @chmod($resultFile, $this->view->file_mode);
            }
        }
        $file = $this->prepareResultFile($resultFile);
        $this->view->jsFiles[$position][$file] = Html::jsFile($file);
    }