使用require.js优化

时间:2015-06-10 14:24:01

标签: requirejs almond

我试图让我的代码使用显然是非标准的设置来优化到单个文件,并且我很难理解所有不同路径的含义。

想象一下,我正在制作包含杏仁的r the requirejs command-line tool的变体。因此,我希望能够使用我的工具附带的杏仁包裹杏仁。

我的目录结构

someAppFolder
|
+--main.js

在相关文件夹中

myRPlusAlmondBuilder
|
+--myRPlusAlmonBuilder.js
|
+--node_modules
   |
   +--almond
   |  |
   |  +--almond.js
   |
   +--requirejs
      |
      ...

所以,我希望myRPlusAlmondBuilder能够像main.js一样构建一个单独的JS包

cd myRPlusAlmondBuilder
node myRPlusAlmondBuilder.js someAppFolder/main.js

这是一个简单的myRPlusAlmondBuilder.js

var requirejs = require('requirejs');
var path = require('path');

var filename = process.argv[2];                
var dirname = path.dirname(filename);          
var barename = path.basename(filename, ".js"); 

var config = {
  baseUrl: dirname,
  name: "node_modules/almond/almond",
  include: barename,
  insertRequire: [barename],
  out:     "out.js",
  wrap:    true,
};

// show the values 
console.log(JSON.stringify(config, undefined, "  "));

requirejs.optimize(config, function() {
  console.log("result is in:", config.out);
}, function(err) {
  console.error(err);
});

像这样称呼它

cd myRPlusAlmondBuilder.js
node myRPlusAlmondBuilder.js /Users/gregg/temp/delme-requirejs/someAppFolder/main.js

但我得到

{
  "baseUrl": "/Users/gregg/temp/delme-requirejs/someAppFolder",
  "name": "node_modules/almond/almond",
  "include": "main",
  "insertRequire": [
    "main"
  ],
  "out": "out.js",
  "wrap": true
}
{ [Error: Error: ERROR: module path does not exist: /Users/gregg/temp/delme-requirejs/someAppFolder/node_modules/almond/almond.js for module named: node_modules/almond/almond. Path is relative to: /Users/gregg/temp/delme-requirejs/myRPlusAlmondBuilder

尝试name的所有其他值都失败

// dot in front 
name: "./node_modules/almond/almond",

// .js on end
name: "node_modules/almond/almond.js",

// .dot in front and .js on end
name: "./node_modules/almond/almond.js",

// absolute path to almond.js with .js
name: path.join(__dirname, "node_modules/almond/almond.js"),

// absolute path to almond.js without .js
name: path.join(__dirname, "node_modules/almond/almond"),

" .js"获得

[Error: Error: ENOENT, no such file or directory '/Users/gregg/temp/delme-requirejs/someAppFolder/node_modules/almond/almond.js'
at Error (native)
]

具有完整路径的那些

[Error: Error: ENOENT, no such file or directory '/Users/gregg/temp/delme-requirejs/someAppFolder//Users/gregg/temp/delme-requirejs/myRPlusAlmondBuilder/node_modules/almond/almond.js'
at Error (native)
]

使用从main.js到杏仁的相对路径

name: path.relative(dirname, path.join(__dirname, "node_modules/almond/almond.js")),

但是,如果C:/somefolder/myRPlusAlmond中的工具和D:/someAppFolder/main.js中的文件

,则无法在Windows中工作

有没有办法使用杏仁的绝对路径?

1 个答案:

答案 0 :(得分:0)

我发现了一种添加杏仁路径的方法

var config = {
  baseUrl: dirname,
  name: "__dontclash_almond__/almond",
  include: barename,
  insertRequire: [barename],
  out:     "out.js",
  wrap:    true,
  paths: {
    __dontclash_almond__: path.join(__dirname, "node_modules/almond"),
  }.
};

看起来有点像黑客,因为我不得不希望我不会与用户选择的名字发生冲突。当然不太可能发生冲突