Tech-Freeware

// die Folgenden Konstanten anpassen
define('MINICSSDPATH', '/var/www/vhosts/yourhost/httpdocs');
define('MINICSSCACHE', true);
 
 
function minicss_menu() {
  $items = array();
  $items['minicss/css'] = array(
    'title' => 'minicss css',
    'page callback'   => 'minicss_minify',
    'page arguments'  => array(2,'css'),
    'access callback' => true,
    'type' => MENU_CALLBACK,
  );
  return $items;
}
 
/**
 * Implementation of hook_preprocess_page()
 */
function minicss_preprocess_page(&$variables) {
  if (!empty($variables['styles'])) {
    preg_match_all('|href="(.*?\.css)|', $variables['styles'], $matches1);
    $variables['styles'] = '<link type="text/css" '.
                            'rel="stylesheet" media="all" '.
                            'href="/minicss/css/'.
                            base64_encode(implode(',',$matches1[1])).'" />';
  }
}
 
function minicss_minify($files,$type) {
    header('Content-Type: text/'.$type);
    header('Cache-control: public');
 
    // The Checksum identifies the unique css-File-Package
    $checksum = md5($files);
    // Recive Cached CSS-Package
    $cache = cache_get('minicss_'.$checksum);
    // If Package does not exist, create it and output
    if (!$cache) {
      $output = '';
      $files = explode(',',base64_decode($files));
      foreach ($files as $file) {
          $content = file_get_contents(MINICSSDPATH.$file);
          // remove comments
          $content = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $content);
          //$content = str_replace("\t", ' ', $content); // Removing Tabs somehow creates problems...
          // Remove special chars
          $content = str_replace(array("\r\n", "\r", "\n", '  ', '    ', '    '), '', $content);
 
          // urls sind relativ zum CSS file und müssen dementsprechend relativ zum miniCSS angepasst werden
          $path = str_replace(array_pop(explode('/',$file)), '', $file);
          $content = str_replace('url(', 'url('.$path,$content);
          $output .= $content;
      }
      // Write new created Package into Cache for next time
      if (MINICSSCACHE) cache_set('minicss_'.$checksum,$output);
      header ("Content-Length: " . strlen($output));
      print $output;
    }
    else {
      // If Cache-package already exists, output cache, also add Information about version
      $output = '/* Retrieved from Cache; Version: '.date('Y.m.d H:i',$cache->created).' */'."\n\n".$cache->data;
      header ("Content-Length: " . strlen($output));
      print($output);
    }
}