如何使用 npm 在当前目录中安装 package.json 依赖项 [英] How do I install package.json dependencies in the current directory using npm
问题描述
我有一个网络应用:fooapp.我在根目录中有一个 package.json
.我想在特定的 node_modules 目录
中安装所有依赖项.我该怎么做?
I have a web app: fooapp. I have a package.json
in the root. I want to install all the dependencies in a specific node_modules directory
. How do I do this?
假设我有两个 widget
依赖项.我想以这样的目录结构结束:
Lets say I have two widget
dependencies. I want to end up with a directory structure like this:
node_modules/
widgetA
widgetB
fooapp/
package.js
lib
..
我得到了什么
当我运行 npm install fooapp/
我得到这个:
node_modules/
fooapp/
node_modules/
widgetA
widgetB
package.js
lib/
..
fooapp/
package.js
lib/
..
npm 在 node_modules 目录中复制我的应用程序目录,并将软件包安装在 另一个 node_modules 目录中.
npm makes a copy of my app directory in the node_modules dir and installs the packages inside another node_modules directory.
我理解这对于安装软件包很有意义.但是我没有 require()
我的网络应用程序在别的东西里面,我直接运行它.我正在寻找一种简单的方法来将我的依赖项安装到特定的 node_modules 目录中.
I understand this makes sense for installing a package. But I don't require()
my web app inside of something else, I run it directly. I'm looking for a simple way to install my dependencies into a specific node_modules directory.
推荐答案
运行:
npm install
从您的应用程序目录中(即 package.json 所在的位置)为您的应用程序安装依赖项,而不是将其安装为模块,如此处所述.这些将放置在相对于您的 package.json 文件的 ./node_modules 中(它实际上比这稍微复杂一些,因此请查看 npm 文档在这里).
from inside your app directory (i.e. where package.json is located) will install the dependencies for your app, rather than install it as a module, as described here. These will be placed in ./node_modules relative to your package.json file (it's actually slightly more complex than this, so check the npm docs here).
如果需要,您可以自由地将 node_modules 目录移动到应用程序的父目录,因为节点的要求"机制理解这一点.但是,如果您想通过安装/更新来更新应用的依赖项,npm 将不会看到重新定位的node_modules",而是会创建一个新目录,同样是相对于 package.json.
You are free to move the node_modules dir to the parent dir of your app if you want, because node's 'require' mechanism understands this. However, if you want to update your app's dependencies with install/update, npm will not see the relocated 'node_modules' and will instead create a new dir, again relative to package.json.
为了防止这种情况,只需从您的应用程序目录创建一个指向重新定位的 node_modules 的符号链接:
To prevent this, just create a symlink to the relocated node_modules from your app dir:
ln -s ../node_modules node_modules
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