public static function Cache(&$less_files, $parser_options = array())
{
//prepare the processor
if (!class_exists('Less_Parser')) {
include_once 'Less.php';
}
$parser = new Less_Parser($parser_options);
$parser->SetCacheDir(self::$cache_dir);
$parser->SetImportDirs(self::$import_dirs);
// combine files
try {
foreach ($less_files as $file_path => $uri_or_less) {
//treat as less markup if there are newline characters
if (strpos($uri_or_less, "\n") !== false) {
$parser->Parse($uri_or_less);
continue;
}
$parser->ParseFile($file_path, $uri_or_less);
}
$compiled = $parser->getCss();
} catch (Exception $e) {
self::$error = $e;
return false;
}
$less_files = $parser->allParsedFiles();
return $compiled;
}
/**
* Returns LESS compiler set up for use with MediaWiki
*
* @since 1.22
* @since 1.26 added $extraVars parameter
* @param Config $config
* @param array $extraVars Associative array of extra (i.e., other than the
* globally-configured ones) that should be used for compilation.
* @throws MWException
* @return Less_Parser
*/
public static function getLessCompiler(Config $config, $extraVars = array())
{
// When called from the installer, it is possible that a required PHP extension
// is missing (at least for now; see bug 47564). If this is the case, throw an
// exception (caught by the installer) to prevent a fatal error later on.
if (!class_exists('Less_Parser')) {
throw new MWException('MediaWiki requires the less.php parser');
}
$parser = new Less_Parser();
$parser->ModifyVars(array_merge(self::getLessVars($config), $extraVars));
$parser->SetImportDirs(array_fill_keys($config->get('ResourceLoaderLESSImportPaths'), ''));
$parser->SetOption('relativeUrls', false);
$parser->SetCacheDir($config->get('CacheDirectory') ?: wfTempDir());
return $parser;
}
/**
* Handle the processing of multiple less files into css
*
* @return mixed Compiled css string or false
*
*/
static function ParseLess(&$less_files)
{
global $dataDir;
$compiled = false;
// don't use less if the memory limit is less than 64M
$limit = @ini_get('memory_limit');
if ($limit) {
$limit = \gp\tool::getByteValue($limit);
//if less than 64M, disable less compiler if we can't increase
if ($limit < 67108864 && @ini_set('memory_limit', '96M') === false) {
if (\gp\tool::LoggedIn()) {
msg('LESS compilation disabled. Please increase php\'s memory_limit');
}
return false;
//if less than 96M, try to increase
} elseif ($limit < 100663296) {
@ini_set('memory_limit', '96M');
}
}
//compiler options
$options = array();
//prepare the compiler
includeFile('thirdparty/less.php/Less.php');
$parser = new \Less_Parser($options);
$import_dirs[$dataDir] = \gp\tool::GetDir('/');
$parser->SetImportDirs($import_dirs);
$parser->cache_method = 'php';
$parser->SetCacheDir($dataDir . '/data/_cache');
// combine files
try {
foreach ($less_files as $less) {
//treat as less markup if there are newline characters
if (strpos($less, "\n") !== false) {
$parser->Parse($less);
continue;
}
// handle relative and absolute paths
if (!empty($dataDir) && strpos($less, $dataDir) === false) {
$relative = $less;
$less = $dataDir . '/' . ltrim($less, '/');
} else {
$relative = substr($less, strlen($dataDir));
}
$parser->ParseFile($less, \gp\tool::GetDir(dirname($relative)));
}
$compiled = $parser->getCss();
} catch (Exception $e) {
if (\gp\tool::LoggedIn()) {
msg('LESS Compile Failed: ' . $e->getMessage());
}
return false;
}
// significant difference in used memory 15,000,000 -> 6,000,000. Max still @ 15,000,000
if (function_exists('gc_collect_cycles')) {
gc_collect_cycles();
}
$less_files = $parser->allParsedFiles();
return $compiled;
}