如何使用closurebuilder编译和缩小脚本

Question

我对闭包库是全新的，并且正在开始。我刚刚在Windows7机器上安装了Python，希望连接并缩小脚本。我按照记录here的方式执行了一些命令，但没有任何收获。这里有一些参数安装

• 的Python在c:\python27\python.exe

• Closure库c:\closure\

• Closure编译器在c:\closure\bin\build\compiler.jar

• 我的JavaScript文件中D:\projects\closureapp\js\index.js

在index.js的项

内容如下

/// <reference path="../closure/base.js" /> 
/// <reference path="../closure/dom/dom.js" /> 


/*Hello world into Closure Library Example*/ 

//Load the dom module 
goog.require("goog.dom"); 


//refer the document body 
var pageBody = document.body; 

//after the body is loaded execute and add a header 
pageBody.onload = function() { 

    //create a header for the page 
    var pageHeader = goog.dom.createDom('h1', { 'style': 'background-color:#EEE' }, 'Hello world!'); 

    //append the header to the document body 
    goog.dom.appendChild(pageBody, pageHeader); 

}; 

我执行下面的命令来产生编译JavaScript，但没有收获

c:\python27\python.exe c:\closure\bin\build\c 
losurebuilder.py --root=closure/ --root=d:\Projects\closureapp\js\ -- 
output_mode=compiled --compiler_jar=compiler.jar > d:\Projects\closureapp\js\output.js 

我得到一些奇怪的消息像下面

c:\closure\bin\build\closurebuilder.py: Building dependency tree.. 
Traceback (most recent call last): 
    File "c:\closure\bin\build\closurebuilder.py", line 257, in <module> main() 
    File "c:\closure\bin\build\closurebuilder.py", line 204, in main tree = depstree.DepsTree(sources) 
    File "c:\closure\bin\build\depstree.py", line 56, in __init__ raise NamespaceNotFoundError(require, source) 
    depstree.NamespaceNotFoundError: Namespace "goog.async.Deferred" never provided. 
    Required in Source closure\messaging\portchannel.js 

Answer 1

这看起来像http://code.google.com/p/closure-library/issues/detail?id=316