模板,js,css压缩的处理类

一年前使用的一个类,由废墟提出,分享一下

请自行下载Google Closure Compiler,和YUIcompressor
点此去下载Google Closure Compiler
点此去下载YUIcompressor

将compiler.jar和yuicompressor-2.4.7.jar放在与本脚本相同的目录下即可

<?php

/**
* 代码压缩处理
* 
* 1.压缩模板文件,去掉所有换行和头尾空格
* 2.压缩js和css文件,生成同名.min.js或.min.css文件
* 
* @author 废墟
* 
*/
ini_set("memory_limit", -1);
ini_set("display_error", 1);
error_reporting(E_ALL);
date_default_timezone_set('Asia/Shanghai');

define('BASEPATH', dirname(__FILE__));

class Compress_Template {

  private $input_dir; //模板源目录
  private $output_dir; //压缩后的模板目录

  public function __construct($type) {
    $this->input_dir = dirname(BASEPATH) . '/application/views_src/';
    $this->output_dir = dirname(BASEPATH) . '/application/views/';
    $this->js_dir = dirname(BASEPATH) . '/wwwroot/static/js/';
    $this->css_dir = dirname(BASEPATH) . '/wwwroot/static/css/';
  }

  public function run() {
    exec('rm ' . $this->output_dir . ' -rf');
    $this->compress_file($this->input_dir, $this->output_dir);
    $this->compress_js_css();
  }

  private function compress_js_css() {
    exec('for JS in $(find ' . $this->js_dir . ' -type f -name "*.js"|grep -v "min.js"); do java -jar compiler.jar --charset=UTF-8 --compilation_level=SIMPLE_OPTIMIZATIONS --js=$JS --js_output_file=${JS%%.js}.min.js; done');
    exec('for CSS in $(find ' . $this->css_dir . ' -type f -name "*.css"|grep -v "min.css"); do java -jar yuicompressor-2.4.7.jar --type css --charset utf-8 -o ${CSS%%.css}.min.css $CSS; done');
  }

  private function compress_file($input, $output) {
    $input = rtrim($input, DIRECTORY_SEPARATOR);
    $output = rtrim($output, DIRECTORY_SEPARATOR);
    if (is_dir($input)) {
      $input .= DIRECTORY_SEPARATOR;
      $output .= DIRECTORY_SEPARATOR;
      foreach (glob($input . "*") as $path) {
        $compress_path = str_replace($input, $output, $path);
        if (is_dir($path)) {
          if (!is_dir($compress_path)) {
            $this->mkpath($compress_path);
          }
          $this->compress_file($path, $compress_path);
        }
        if (is_file($path)) {
          $data = array_map("trim", file($path));
          file_put_contents($compress_path, join('', $data));
        }
      }
    }
  }

  private function mkpath($path) {
    return is_dir($path) or ($this->mkpath(dirname($path)) and (mkdir($path, 0777) and chmod($path, 0777)));
  }

}

$app = new Compress_Template();
$app->run();
echo "OK!\n";

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