我想要求我的文件总是通过我的项目的根,而不是相对于当前模块。

例如,如果查看https://github.com/visionmedia/express/blob/2820f2227de0229c5d7f28009aa432f9f3a7b5f9/examples/downloads/app.js第6行,您将看到

express = require('../../')

在我看来,这真的很糟糕。假设我想让我所有的例子都只靠近根结点一层。这是不可能的,因为我必须更新超过30个例子,并且在每个例子中更新很多次。:

express = require('../')

我的解决方案是有一个基于根的特殊情况:如果字符串以$开头,那么它相对于项目的根文件夹。

任何帮助都是感激的,谢谢

更新2

现在我使用require.js,它允许你以一种方式编写,在客户端和服务器上都可以工作。Require.js还允许你创建自定义路径。

更新3

现在我转移到webpack + gulp,我使用enhanced-require来处理服务器端模块。看这里的基本原理:http://hackhat.com/p/110/module-loader-webpack-vs-requirejs-vs-browserify/


当前回答

如果有人正在寻找另一种方法来解决这个问题,这里是我自己的贡献:

https://www.npmjs.com/package/use-import

基本思路:在项目的根目录中创建一个JSON文件,将文件路径映射为简写名称(或者让use-automapper为您完成)。然后您可以使用这些名称请求您的文件/模块。像这样:

var use = require('use-import');
var MyClass = use('MyClass');

就是这样。

其他回答

恕我直言,最简单的方法是将自己的函数定义为GLOBAL对象的一部分。 在项目的根目录下创建projRequire.js,包含以下内容:

var projectDir = __dirname;

module.exports = GLOBAL.projRequire = function(module) {
  return require(projectDir + module);
}

在你的主文件中,在需要任何特定于项目的模块之前:

// init projRequire
require('./projRequire');

之后,以下工作对我来说:

// main file
projRequire('/lib/lol');

// index.js at projectDir/lib/lol/index.js
console.log('Ok');

@Totty,我想出了另一个解决方案,可以解决你在评论中描述的情况。描述将是tl;dr,所以我最好展示我的测试项目的结构的图片。

在Browserify手册中有一个非常有趣的章节:

avoiding ../../../../../../.. Not everything in an application properly belongs on the public npm and the overhead of setting up a private npm or git repo is still rather large in many cases. Here are some approaches for avoiding the ../../../../../../../ relative paths problem. node_modules People sometimes object to putting application-specific modules into node_modules because it is not obvious how to check in your internal modules without also checking in third-party modules from npm. The answer is quite simple! If you have a .gitignore file that ignores node_modules: node_modules You can just add an exception with ! for each of your internal application modules: node_modules/* !node_modules/foo !node_modules/bar Please note that you can't unignore a subdirectory, if the parent is already ignored. So instead of ignoring node_modules, you have to ignore every directory inside node_modules with the node_modules/* trick, and then you can add your exceptions. Now anywhere in your application you will be able to require('foo') or require('bar') without having a very large and fragile relative path. If you have a lot of modules and want to keep them more separate from the third-party modules installed by npm, you can just put them all under a directory in node_modules such as node_modules/app: node_modules/app/foo node_modules/app/bar Now you will be able to require('app/foo') or require('app/bar') from anywhere in your application. In your .gitignore, just add an exception for node_modules/app: node_modules/* !node_modules/app If your application had transforms configured in package.json, you'll need to create a separate package.json with its own transform field in your node_modules/foo or node_modules/app/foo component directory because transforms don't apply across module boundaries. This will make your modules more robust against configuration changes in your application and it will be easier to independently reuse the packages outside of your application. symlink Another handy trick if you are working on an application where you can make symlinks and don't need to support windows is to symlink a lib/ or app/ folder into node_modules. From the project root, do: ln -s ../lib node_modules/app and now from anywhere in your project you'll be able to require files in lib/ by doing require('app/foo.js') to get lib/foo.js. custom paths You might see some places talk about using the $NODE_PATH environment variable or opts.paths to add directories for node and browserify to look in to find modules. Unlike most other platforms, using a shell-style array of path directories with $NODE_PATH is not as favorable in node compared to making effective use of the node_modules directory. This is because your application is more tightly coupled to a runtime environment configuration so there are more moving parts and your application will only work when your environment is setup correctly. node and browserify both support but discourage the use of $NODE_PATH.

如果你的应用程序的入口点js文件(即你实际运行“node”的文件)在你的项目根目录下,你可以很容易地用rootpath npm模块做到这一点。只需通过

npm install --save rootpath

...然后在入口点js文件的最上面,添加:

require('rootpath')();

从那时起,所有的require调用现在都相对于项目根——例如require('../../../config/debugging/log');就要求(“配置/调试/日志”);(其中配置文件夹在项目根目录下)。

如果你使用ES5语法,你可以使用asapp。对于ES6,你可以使用babel-plugin-module-resolver,使用如下配置文件:

.babelrc

{
  "plugins": [
    ["module-resolver", {
      "root": ["./"],
      "alias": {
        "app": "./app",
        "config": "./app/config",
        "schema": "./app/db/schemas",
        "model": "./app/db/models",
        "controller": "./app/http/controllers",
        "middleware": "./app/http/middleware",
        "route": "./app/http/routes",
        "locale": "./app/locales",
        "log": "./app/logs",
        "library": "./app/utilities/libraries",
        "helper": "./app/utilities/helpers",
        "view": "./app/views"
      }
    }]
  ]
}

看看node-rfr。

其实很简单:

var rfr = require('rfr');
var myModule = rfr('projectSubDir/myModule');