- added the csspp library that automatically reduces the size of CSS files; it is activated by prefixing an CSS file URL with /ccss/ instead of /css/ and there's a switch in the /config/core.php to activate it in Controller::cssTag()

- added a new class, File, currently only used by the Log class and Compressed CSS (CCSS) caching; aims to support easy reading and writing of files

git-svn-id: https://svn.cakephp.org/repo/trunk/cake@252 3807eeeb-6ff5-0310-8944-8be069107fe0

config/core.php

@@ -24,4 +24,11 @@
  */
 define ('DEBUG', 1);
 
+/**
+ * Compress output CSS (removing comments, whitespace, repeating tags etc.)
+ * This requires a /var/cache directory to be writable by the web server (caching).
+ * To use, prefix the CSS link URL with '/ccss/' instead of '/css/' or use Controller::cssTag().
+ */
+define ('COMPRESS_CSS', false);
+
 ?>

config/paths.php

@@ -88,6 +88,11 @@ define ('MODULES',     ROOT.'modules'.DS);
  */
 define ('PUBLIC',      ROOT.'public'.DS);
 
+/**
+ * Path to the public directory.
+ */
+define ('CSS',             PUBLIC.'css'.DS);
+
 /**
  * Path to the scripts direcotry.
  */
@@ -118,6 +123,16 @@ define ('MODEL_TESTS',     TESTS.'app'.DS.'models'.DS);
  */
 define ('LIB_TESTS',       TESTS.'libs'.DS);
 
+/**
+ * Path to the temporary files directory.
+ */
+define ('TMP',     ROOT.'tmp'.DS);
+
+/**
+ * Path to the cache files directory. It can be shared between hosts in a multi-server setup.
+ */
+define('CACHE', TMP.'cache'.DS);
+
 /**
  * Path to the vendors directory.
  */
@@ -130,9 +145,20 @@ define ('VENDORS',     ROOT.'vendors'.DS);
  */
 define ('PEAR',            VENDORS.'Pear'.DS);
 
+
+/**
+ *  Full url prefix
+ */
+define('FULL_BASE_URL', 'http://'.$_SERVER['HTTP_HOST']);
+
 /**
  * Web path to the public images directory.
  */
-define ('IMAGES',          '/img/');
+define ('IMAGES_URL',          '/img/');
+
+/**
+ * Web path to the CSS files directory.
+ */
+define ('CSS_URL',            '/css/');
 
 ?>

libs/controller.php

@@ -460,7 +460,7 @@ class Controller extends Template
   * @return string Formatted IMG tag
   */
 	function imageTag ($path, $alt=null, $html_options=null) {
-		$url = $this->base.IMAGES.$path;
+		$url = $this->base.IMAGES_URL.$path;
 		return sprintf(TAG_IMAGE, $url, $alt, $this->parseHtmlOptions($html_options, null, '', ' '));
 	}
 
@@ -516,7 +516,7 @@ class Controller extends Template
   * @return string Formatted LINK element.
   */
 	function cssTag ($path, $rel='stylesheet', $html_options=null) {
-		$url = "{$this->base}/css/{$path}.css";
+		$url = "{$this->base}/".(COMPRESS_CSS? 'c': '')."css/{$path}.css";
 		return sprintf(TAG_CSS, $rel, $url, $this->parseHtmlOptions($html_options, null, '', ' '));
 	}
 

libs/file.php

@@ -0,0 +1,40 @@
+<?php // $Id$ 
+
+class File
+{
+	var $path = null;
+	
+	function File ($path)
+	{
+		$this->path = $path;
+	}
+	
+	function read ()
+	{
+		return file_get_contents($this->path);
+	}
+	
+	function append ($data)
+	{
+		return $this->write($data, 'a');
+	}
+	
+	function write ($data, $mode = 'w')
+	{
+		if (!($handle = fopen($this->path, $mode)))
+		{
+			print ("[File] Could not open {$this->path} with mode $mode!");
+			return false;
+		}
+			
+		if (!fwrite($handle, $data))
+			return false;
+			
+		if (!fclose($handle))
+			return false;
+		
+		return true;
+	}
+}
+
+?>

libs/log.php

@@ -29,26 +29,17 @@
   * @lastmodified $Date$
   * @license http://www.opensource.org/licenses/mit-license.php The MIT License
   */
+uses('file');
+
 class Log
 {
 	function write($type, $msg)
 	{
-		$out = date('y-m-d H:i:s').' '.ucfirst($type).': '.$msg."\n";
-		$fn = LOGS.$type.'.log';
+		$filename = LOGS.$type.'.log';
+		$output = date('y-m-d H:i:s').' '.ucfirst($type).': '.$msg."\n";
 
-		if (!($log = fopen($fn, 'a')))
-		{
-			print ("[Log] Could not open {$fn}!");
-			return false;
-		}
-			
-		if (!fwrite($log, $out))
-			return false;
-			
-		if (!fclose($log))
-			return false;
-		
-		return true;
+		$log = new File($filename);
+		return $log->append($output);
 	}
 }
 

libs/object.php

@@ -30,6 +30,8 @@
   * @license http://www.opensource.org/licenses/mit-license.php The MIT License
   */
 
+uses('log');
+
 /**
   * Enter description here...
   *

public/css.php

@@ -0,0 +1,70 @@
+<?PHP
+
+require(ROOT.'config'.DS.'paths.php');
+require(LIBS.'file.php');
+require(LIBS.'legacy.php');
+
+function make_clean_css ($path, $name)
+{
+	require_once(VENDORS.'csspp'.DS.'csspp.php');
+
+	$data = file_get_contents($path);
+	$csspp = new csspp();
+	$output = $csspp->compress($data);
+
+	$ratio = 100-(round(strlen($output)/strlen($data), 3)*100);
+	$output = " /* file: $name, ratio: $ratio% */ " . $output;
+
+	return $output;
+}
+
+function write_css_cache ($path, $content)
+{
+	if (!is_dir(dirname($path)))
+		mkdir(dirname($path));
+	
+	$cache = new File($path);
+	return $cache->write($content);
+}
+
+
+if (!preg_match('|^ccss/([a-z0-9\/\-\\\]+\.[a-z0-9]+)$|i', $url, $regs)) 
+	die('Wrong file name.');
+
+$filename = 'css/'.$regs[1];
+$filepath = CSS.$regs[1];
+$cachepath = CACHE.'css'.DS.str_replace(array('/','\\'), '-', $regs[1]);
+
+if (!file_exists($filepath))
+	die('Wrong file name.');
+
+
+if (file_exists($cachepath))
+{
+	$templateModified = filemtime($filepath);
+	$cacheModified = filemtime($cachepath);
+	
+	if ($templateModified > $cacheModified)
+	{
+		$output = make_clean_css ($filepath, $filename);
+		write_css_cache ($cachepath, $output);
+	}
+	else 
+	{
+		$output = file_get_contents($cachepath);
+	}
+}
+else 
+{
+	$output = make_clean_css ($filepath, $filename);
+	write_css_cache ($cachepath, $output);
+}
+
+header("Date: ".date("D, j M Y G:i:s ", $templateModified).'GMT');
+header("Content-Type: text/css");
+header("Expires: ".date("D, j M Y G:i:s T", time()+24*60*60));
+header("Cache-Control: cache"); // HTTP/1.1
+header("Pragma: cache"); // HTTP/1.0
+print $output;
+
+?>

public/index.php

@@ -30,6 +30,8 @@
  * @license http://www.opensource.org/licenses/mit-license.php The MIT License
  */
 
+$url = empty($_GET['url'])? null: $_GET['url'];
+
 session_start();
 
 /**
@@ -41,16 +43,22 @@ if (!defined('DS'))
 if (!defined('ROOT'))
 	define ('ROOT', dirname(dirname(__FILE__)).DS);
 
+if (strpos($url, 'ccss/') === 0)
+{
+	include(ROOT.'public'.DS.'css.php');
+	die;
+}
+	
 /**
   * Configuration, directory layout and standard libraries
   */
 require_once (ROOT.'config/core.php');
 require_once (ROOT.'config/paths.php');
+require_once (ROOT.'libs/basics.php');
 require_once (ROOT.'libs/log.php');
 require_once (ROOT.'libs/object.php');
 require_once (ROOT.'libs/neat_array.php');
 require_once (ROOT.'libs/inflector.php');
-require_once (ROOT.'libs/basics.php');
 
 DEBUG? error_reporting(E_ALL): error_reporting(0);
 
@@ -69,7 +77,6 @@ if (class_exists('DATABASE_CONFIG'))
 }
 
 ## RUN THE SCRIPT
-$url = empty($_GET['url'])? null: $_GET['url'];
 $DISPATCHER = new Dispatcher ();
 $DISPATCHER->dispatch($url);
 

scripts/test.bat

@@ -0,0 +1 @@
+@php -q scripts\test.php --human-readable"

tests/libs/controller.php

@@ -239,11 +239,11 @@ class ControllerTest extends UnitTestCase
 	function testImageTag()
 	{
 		$result   = $this->controller->imageTag('foo.gif');
-		$expected = '<img src="/ease'.IMAGES.'foo.gif" alt="" />';
+		$expected = '<img src="/ease'.IMAGES_URL.'foo.gif" alt="" />';
 		$this->assertEqual($result, $expected);
 
 		$result   = $this->controller->imageTag('bar/baz.gif', 'Foobar', array('class'=>'Zet'));
-		$expected = '<img src="/ease'.IMAGES.'bar/baz.gif" alt="Foobar" class="Zet" />';
+		$expected = '<img src="/ease'.IMAGES_URL.'bar/baz.gif" alt="Foobar" class="Zet" />';
 		$this->assertEqual($result, $expected);
 	}