节点版本管理器(NVM)npm将模块安装到公用文件夹 [英] Node Version Manager (NVM) npm installing modules to common folder

问题描述

我已经按照这篇文章中的说明为node.js安装了NVM:

I've installed NVM for node.js using the instructions from this post:

http://www.backdrifter.com/2011/02/18/using-nvm-and-npm-to-manage-node-js/

当我在节点版本之间切换，然后使用npm安装模块时，所有模块都放在同一"node_modules"文件夹(〜/node_modules/)中，而不是在特定于该节点版本的"node_modules"目录中?

When I switch between node versions and then use npm to install a module, all the modules are placed in the same 'node_modules' folder (~/node_modules/) instead of in the 'node_modules' directory specific to that version of node?

关于如何解决这个问题的任何想法?

Any idea on how to remedy this?

推荐答案

基于 https中的评论://github.com/creationix/nvm/pull/97 :

使用全局开关-g和npm安装软件包时， 程序包最终位于正确的目录中(即 .nvm/$ VERSION/lib/node_modules)，但是节点无法要求它 因为它不以某种方式搜索其前缀.

When installing packages with npm using the global switch -g the package ends up in the proper directory (i.e. .nvm/$VERSION/lib/node_modules), however node is unable to require it since it somehow isn't searching on it's prefix.

因此，使用npm install -g xxxxx会将模块放置在NVM的正确位置，但是如果尝试require，则其中一个节点将找不到该模块.我仍在处理这个问题，如果找到解决方案，它将进行更新.

So using npm install -g xxxxx will put the modules in the correct location for NVM but if you try to require one of them node can't find the module. I am still playing around with this and will update if I find a solution.

更新

NPM将node_modules放在哪里? (请参见 https://docs.npmjs.com/files/folders )

Where does NPM put node_modules? (see https://docs.npmjs.com/files/folders)

• 本地安装(默认):将内容放入当前软件包根目录的./node_modules中.
• 全局安装(带有-g):将内容放入/usr/local或安装节点的任何地方.
• 如果要require()，请在本地安装.
• 如果要在命令行上运行它，请全局安装它.
• 如果两者都需要，则将其安装在两个地方，或使用npm link.

• Local install (default): puts stuff in ./node_modules of the current package root.
• Global install (with -g): puts stuff in /usr/local or wherever node is installed.
• Install it locally if you're going to require() it.
• Install it globally if you're going to run it on the command line.
• If you need both, then install it in both places, or use npm link.

所以我的操作是运行npm init(请参见 http://npmjs.org/doc/init .html )在我的项目根目录中，该目录生成package.json.现在，当我运行npm install xxxxx时，它将在我的项目文件夹(将其添加到.gitignore中)中创建一个node_modules目录.这适用于我的代码中需要的模块.

So what I did was run npm init (see http://npmjs.org/doc/init.html) in my projects root dir which generated package.json. Now when I run npm install xxxxx it creates a node_modules dir in my project folder (which I add to my .gitignore). This works for modules that I require in my code.

对于诸如CoffeeScript之类的命令，我使用npm install -g coffee-script安装，将其放置在正确的目录(.nvm/$ VERSION/lib/node_modules)中.虽然我不需要这些模块(npm链接应该可以解决此问题)，但是我可以运行命令-即coffee.

For commands such as CoffeeScript I install with npm install -g coffee-script which puts it in the correct directory (.nvm/$VERSION/lib/node_modules). While I can't require these modules (npm link should solve this problem) I can run the commands - i.e. coffee.

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