less module modification, dont know if i have to keep it

sites/all/libraries/less.php/Cache.php

@@ -0,0 +1,316 @@
+<?php
+
+require_once( dirname(__FILE__).'/Version.php');
+
+/**
+ * Utility for handling the generation and caching of css files
+ *
+ * @package Less
+ * @subpackage cache
+ *
+ */
+class Less_Cache{
+
+	// directory less.php can use for storing data
+	public static $cache_dir	= false;
+
+	// prefix for the storing data
+	public static $prefix		= 'lessphp_';
+
+	// prefix for the storing vars
+	public static $prefix_vars	= 'lessphpvars_';
+
+	// specifies the number of seconds after which data created by less.php will be seen as 'garbage' and potentially cleaned up
+	public static $gc_lifetime	= 604800;
+
+
+	/**
+	 * Save and reuse the results of compiled less files.
+	 * The first call to Get() will generate css and save it.
+	 * Subsequent calls to Get() with the same arguments will return the same css filename
+	 *
+	 * @param array $less_files Array of .less files to compile
+	 * @param array $parser_options Array of compiler options
+	 * @param array $modify_vars Array of variables
+	 * @return string Name of the css file
+	 */
+	public static function Get( $less_files, $parser_options = array(), $modify_vars = array() ){
+
+
+		//check $cache_dir
+		if( isset($parser_options['cache_dir']) ){
+			Less_Cache::$cache_dir = $parser_options['cache_dir'];
+		}
+
+		if( empty(Less_Cache::$cache_dir) ){
+			throw new Exception('cache_dir not set');
+		}
+
+		if( isset($parser_options['prefix']) ){
+			Less_Cache::$prefix = $parser_options['prefix'];
+		}
+
+		if( empty(Less_Cache::$prefix) ){
+			throw new Exception('prefix not set');
+		}
+
+		if( isset($parser_options['prefix_vars']) ){
+			Less_Cache::$prefix_vars = $parser_options['prefix_vars'];
+		}
+
+		if( empty(Less_Cache::$prefix_vars) ){
+			throw new Exception('prefix_vars not set');
+		}
+
+		self::CheckCacheDir();
+		$less_files = (array)$less_files;
+
+
+		//create a file for variables
+		if( !empty($modify_vars) ){
+			$lessvars = Less_Parser::serializeVars($modify_vars);
+			$vars_file = Less_Cache::$cache_dir . Less_Cache::$prefix_vars . sha1($lessvars) . '.less';
+
+			if( !file_exists($vars_file) ){
+				file_put_contents($vars_file, $lessvars);
+			}
+
+			$less_files += array($vars_file => '/');
+		}
+
+
+		// generate name for compiled css file
+		$hash = md5(json_encode($less_files));
+ 		$list_file = Less_Cache::$cache_dir . Less_Cache::$prefix . $hash . '.list';
+
+
+ 		// check cached content
+ 		if( !isset($parser_options['use_cache']) || $parser_options['use_cache'] === true ){
+			if( file_exists($list_file) ){
+
+				self::ListFiles($list_file, $list, $cached_name);
+				$compiled_name = self::CompiledName($list);
+
+				// if $cached_name != $compiled_name, we know we need to recompile
+				if( !$cached_name || $cached_name === $compiled_name ){
+
+					$output_file = self::OutputFile($compiled_name, $parser_options );
+
+					if( $output_file && file_exists($output_file) ){
+						@touch($list_file);
+						return basename($output_file); // for backwards compatibility, we just return the name of the file
+					}
+				}
+			}
+		}
+
+		$compiled = self::Cache( $less_files, $parser_options );
+		if( !$compiled ){
+			return false;
+		}
+
+		$compiled_name = self::CompiledName( $less_files );
+		$output_file = self::OutputFile($compiled_name, $parser_options );
+
+
+		//save the file list
+		$list = $less_files;
+		$list[] = $compiled_name;
+		$cache = implode("\n",$list);
+		file_put_contents( $list_file, $cache );
+
+
+		//save the css
+		file_put_contents( $output_file, $compiled );
+
+
+		//clean up
+		self::CleanCache();
+
+		return basename($output_file);
+	}
+
+	/**
+	 * Force the compiler to regenerate the cached css file
+	 *
+	 * @param array $less_files Array of .less files to compile
+	 * @param array $parser_options Array of compiler options
+	 * @param array $modify_vars Array of variables
+	 * @return string Name of the css file
+	 */
+	public static function Regen( $less_files, $parser_options = array(), $modify_vars = array() ){
+		$parser_options['use_cache'] = false;
+		return self::Get( $less_files, $parser_options, $modify_vars );
+	}
+
+	public static function Cache( &$less_files, $parser_options = array() ){
+
+
+		// get less.php if it exists
+		$file = dirname(__FILE__) . '/Less.php';
+		if( file_exists($file) && !class_exists('Less_Parser') ){
+			require_once($file);
+		}
+
+		$parser_options['cache_dir'] = Less_Cache::$cache_dir;
+		$parser = new Less_Parser($parser_options);
+
+
+		// combine files
+		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();
+
+
+		$less_files = $parser->allParsedFiles();
+
+		return $compiled;
+	}
+
+
+	private static function OutputFile( $compiled_name, $parser_options ){
+
+		//custom output file
+		if( !empty($parser_options['output']) ){
+
+			//relative to cache directory?
+			if( preg_match('#[\\\\/]#',$parser_options['output']) ){
+				return $parser_options['output'];
+			}
+
+			return Less_Cache::$cache_dir.$parser_options['output'];
+		}
+
+		return Less_Cache::$cache_dir.$compiled_name;
+	}
+
+
+	private static function CompiledName( $files ){
+
+		//save the file list
+		$temp = array(Less_Version::cache_version);
+		foreach($files as $file){
+			$temp[] = filemtime($file)."\t".filesize($file)."\t".$file;
+		}
+
+		return Less_Cache::$prefix.sha1(json_encode($temp)).'.css';
+	}
+
+
+	public static function SetCacheDir( $dir ){
+		Less_Cache::$cache_dir = $dir;
+	}
+
+	public static function CheckCacheDir(){
+
+		Less_Cache::$cache_dir = str_replace('\\','/',Less_Cache::$cache_dir);
+		Less_Cache::$cache_dir = rtrim(Less_Cache::$cache_dir,'/').'/';
+
+		if( !file_exists(Less_Cache::$cache_dir) ){
+			if( !mkdir(Less_Cache::$cache_dir) ){
+				throw new Less_Exception_Parser('Less.php cache directory couldn\'t be created: '.Less_Cache::$cache_dir);
+			}
+
+		}elseif( !is_dir(Less_Cache::$cache_dir) ){
+			throw new Less_Exception_Parser('Less.php cache directory doesn\'t exist: '.Less_Cache::$cache_dir);
+
+		}elseif( !is_writable(Less_Cache::$cache_dir) ){
+			throw new Less_Exception_Parser('Less.php cache directory isn\'t writable: '.Less_Cache::$cache_dir);
+
+		}
+
+	}
+
+
+	/**
+	 * Delete unused less.php files
+	 *
+	 */
+	public static function CleanCache(){
+		static $clean = false;
+
+		if( $clean ){
+			return;
+		}
+
+		$files = scandir(Less_Cache::$cache_dir);
+		if( $files ){
+			$check_time = time() - self::$gc_lifetime;
+			foreach($files as $file){
+
+				// don't delete if the file wasn't created with less.php
+				if( strpos($file,Less_Cache::$prefix) !== 0 ){
+					continue;
+				}
+
+				$full_path = Less_Cache::$cache_dir.'/'.$file;
+
+				// make sure the file still exists
+				// css files may have already been deleted
+				if( !file_exists($full_path) ){
+					continue;
+				}
+				$mtime = filemtime($full_path);
+
+				// don't delete if it's a relatively new file
+				if( $mtime > $check_time ){
+					continue;
+				}
+
+				$parts = explode('.',$file);
+				$type = array_pop($parts);
+
+
+				// delete css files based on the list files
+				if( $type === 'css' ){
+					continue;
+				}
+
+
+				// delete the list file and associated css file
+				if( $type === 'list' ){
+					self::ListFiles($full_path, $list, $css_file_name);
+					if( $css_file_name ){
+						$css_file = Less_Cache::$cache_dir.'/'.$css_file_name;
+						if( file_exists($css_file) ){
+							unlink($css_file);
+						}
+					}
+				}
+
+				unlink($full_path);
+			}
+		}
+
+		$clean = true;
+	}
+
+
+	/**
+	 * Get the list of less files and generated css file from a list file
+	 *
+	 */
+	static function ListFiles($list_file, &$list, &$css_file_name ){
+
+		$list = explode("\n",file_get_contents($list_file));
+
+		//pop the cached name that should match $compiled_name
+		$css_file_name = array_pop($list);
+
+		if( !preg_match('/^' . Less_Cache::$prefix . '[a-f0-9]+\.css$/',$css_file_name) ){
+			$list[] = $css_file_name;
+			$css_file_name = false;
+		}
+
+	}
+
+}

sites/all/libraries/less.php/Version.php

@@ -0,0 +1,15 @@
+<?php
+
+/**
+ * Release numbers
+ *
+ * @package Less
+ * @subpackage version
+ */
+class Less_Version{
+
+	const version = '1.7.0.3';			// The current build number of less.php
+	const less_version = '1.7';			// The less.js version that this build should be compatible with
+    const cache_version = '170';		// The parser cache version
+
+}

sites/all/modules/less/classes/class.lessautoprefixer.inc

@@ -48,14 +48,17 @@ class LessAutoprefixer {
 
     $version = NULL;
 
-    try {
+    if (function_exists('proc_open')) {
 
-      $version_response = self::create(NULL)->proc_open(array('--version'));
+      try {
 
-      $version = preg_replace('/.*?([\d\.]+).*/', '$1', $version_response);
-    }
-    catch (Exception $e) {
+        $version_response = self::create(NULL)->proc_open(array('--version'));
 
+        $version = preg_replace('/.*?([\d\.]+).*/', '$1', $version_response);
+      }
+      catch (Exception $e) {
+
+      }
     }
 
     return $version;

sites/all/modules/less/classes/class.lessjs.inc

@@ -80,14 +80,17 @@ class Lessjs {
 
     $version = NULL;
 
-    try {
+    if (function_exists('proc_open')) {
 
-      $version_response = self::create(NULL)->proc_open(array('--version'));
+      try {
 
-      $version = preg_replace('/.*?([\d\.]+).*/', '$1', $version_response);
-    }
-    catch (Exception $e) {
+        $version_response = self::create(NULL)->proc_open(array('--version'));
 
+        $version = preg_replace('/.*?([\d\.]+).*/', '$1', $version_response);
+      }
+      catch (Exception $e) {
+
+      }
     }
 
     return $version;

sites/all/modules/less/engines/abstract.LessEngine.inc

@@ -98,9 +98,4 @@ abstract class LessEngine implements LessEngineInterface {
 
     return $this->dependencies;
   }
-
-  /**
-   * {@inheritdoc}
-   */
-  abstract public function compile();
 }

sites/all/modules/less/includes/less.admin.inc

@@ -10,6 +10,16 @@
  */
 function less_settings_form($form, &$form_state) {
 
+  if (!function_exists('proc_open')) {
+
+    $message_vars = array(
+      '@proc_open_url' => url('http://php.net/manual/en/function.proc-open.php'),
+      '@disable_functions_url' => url('http://php.net/manual/en/ini.core.php#ini.disable-functions'),
+    );
+
+    drupal_set_message(t('PHP function <a href="@proc_open_url">proc_open()</a> is currently <a href="@disable_functions_url">disabled</a>. You will be unable to less.js or Autoprefixer.', $message_vars), 'warning');
+  }
+
   $form['less_flush'] = array(
     '#type' => 'fieldset',
     '#collapsible' => FALSE,
@@ -66,7 +76,7 @@ function less_settings_form($form, &$form_state) {
     '#type' => 'checkbox',
     '#title' => t('Use @name - <a href="@vendor_url">@vendor_url</a>', array('@name' => $lessautoprefixer_library['name'], '@vendor_url' => $lessautoprefixer_library['vendor url'])),
     '#description' => t('Enable automatic prefixing of vendor CSS extensions.'),
-    '#default_value' => variable_get(LESS_AUTOPREFIXER, FALSE),
+    '#default_value' => variable_get(LESS_AUTOPREFIXER, FALSE) && !empty($lessautoprefixer_library['installed']),
     '#disabled' => empty($lessautoprefixer_library['installed']),
   );
   

sites/all/modules/less/less.info

@@ -22,9 +22,9 @@ files[] = classes/class.lessautoprefixer.inc
 ; Testing files
 files[] = tests/less.test
 
-; Information added by Drupal.org packaging script on 2015-01-30
-version = "7.x-4.0"
+; Information added by Drupal.org packaging script on 2015-02-04
+version = "7.x-4.0+2-dev"
 core = "7.x"
 project = "less"
-datestamp = "1422653011"
+datestamp = "1423078338"
 

sites/all/modules/less/less_demo/less_demo.info

@@ -22,9 +22,9 @@ less[vars][@text_glow]      = lighten(@gradient_start, 10%);
 ; this module.
 less[sheets][] = styles/less_demo.drupal_add_css.css.less
 
-; Information added by Drupal.org packaging script on 2015-01-30
-version = "7.x-4.0"
+; Information added by Drupal.org packaging script on 2015-02-04
+version = "7.x-4.0+2-dev"
 core = "7.x"
 project = "less"
-datestamp = "1422653011"
+datestamp = "1423078338"