为嵌套文件夹运行 npm install 的最佳方法? [英] The best way to run npm install for nested folders?

问题描述

在嵌套子文件夹中安装 npm 包 的最正确方法是什么?

What is the most correct way to install npm packages in nested sub folders?

my-app
  /my-sub-module
  package.json
package.json

npm install 在 中运行时自动安装 /my-sub-module 中的 packages 的最佳方法是什么?我的应用?

What is the best way to have packages in /my-sub-module be installed automatically when npm install run in my-app?

推荐答案

如果你想运行一个命令来在嵌套的子文件夹中安装 npm 包，你可以通过 npm 和 main package.json 在您的根目录中.该脚本将访问每个子目录并运行 npm install.

If you want to run a single command to install npm packages in nested subfolders, you can run a script via npm and main package.json in your root directory. The script will visit every subdirectory and run npm install.

下面是一个 .js 脚本，它将达到预期的结果:

Below is a .js script that will achieve the desired result:

var fs = require('fs');
var resolve = require('path').resolve;
var join = require('path').join;
var cp = require('child_process');
var os = require('os');
    
// get library path
var lib = resolve(__dirname, '../lib/');
    
fs.readdirSync(lib).forEach(function(mod) {
    var modPath = join(lib, mod);
    
    // ensure path has package.json
    if (!fs.existsSync(join(modPath, 'package.json'))) {
        return;
    }

    // npm binary based on OS
    var npmCmd = os.platform().startsWith('win') ? 'npm.cmd' : 'npm';

    // install folder
    cp.spawn(npmCmd, ['i'], {
        env: process.env,
        cwd: modPath,
        stdio: 'inherit'
    });
})

请注意，这是从 StrongLoop 文章中获取的示例，该文章特别指出解决模块化 node.js 项目结构(包括嵌套组件和 package.json 文件).

Note that this is an example taken from a StrongLoop article that specifically addresses a modular node.js project structure (including nested components and package.json files).

按照建议，您也可以使用 bash 脚本实现相同的目的.

As suggested, you could also achieve the same thing with a bash script.

使代码在 Windows 中工作

Made the code work in Windows

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