Node.js child_process 无法访问全局模块 [英] Node.js child_process has no access to global modules

问题描述

我已经在我的 Kubuntu 19.04 中全局安装了一个 npm 包

I have installed a npm packages globally in my Kubuntu 19.04

$ npm install -g cordova
/home/username/.npm-global/bin/cordova -> /home/username/.npm-global/lib/node_modules/cordova/bin/cordova
+ cordova@9.0.0
updated 1 package in 7.299s

我可以从shell访问它

I can access it from shell

$ cordova -v
9.0.0 (cordova-lib@9.0.1)

但是我无法从带有 spawn 的简单节点脚本中访问它:

But I can't access it from a simple node script with spawn:

const { spawn } = require( 'child_process' );
const cmd = spawn( 'cordova', [ '-v' ] );

cmd.stdout.on( 'data', data => {
    console.log( `stdout: ${data}` );
} );

运行结果如下:

$ node test1.js
events.js:298
      throw er; // Unhandled 'error' event
      ^

Error: spawn cordova ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
    at onErrorNT (internal/child_process.js:467:16)
    at processTicksAndRejections (internal/process/task_queues.js:84:21)
Emitted 'error' event on ChildProcess instance at:
    at Process.ChildProcess._handle.onexit (internal/child_process.js:273:12)
    at onErrorNT (internal/child_process.js:467:16)
    at processTicksAndRejections (internal/process/task_queues.js:84:21) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'spawn cordova',
  path: 'cordova',
  spawnargs: [ '-v' ]
}

但是当使用绝对路径时:

But when using absolute path:

const { spawn } = require( 'child_process' );
const cmd = spawn( '/home/username/.npm-global/bin/cordova', [ '-v' ] );

cmd.stdout.on( 'data', data => {
    console.log( `stdout: ${data}` );
} );

我得到了预期的结果:

$ node test1.js
stdout: 9.0.0 (cordova-lib@9.0.1)

我上面的脚本只是一个测试用例，因为我在 vue-cli-plugin-cordova 和 quasar<中添加/运行 cordova 特定内容时遇到问题/代码>.我追查到，全局路径是问题所在.

My script above is just a testcase, since I have problem to add/run cordova specific stuff in vue-cli-plugin-cordova and quasar. I tracked it down, that the global path is the problem.

我想我发现了问题，但不知道如何解决.将/bin/bash 设置为 shell 时，它可以工作:

I think I found the problem, but not sure how to solve it. When setting /bin/bash as shell, it works:

cmd = spawn('cordova', ['-v'], {
    shell: '/bin/bash'
});

不确定，为什么需要这样做以及为什么包 vue-cli-plugin-cordova 和 quasar 不这样做.

Not sure, why this is needed and why the packages vue-cli-plugin-cordova and quasar don't do it.

推荐答案

好的，经过几个小时的研究和试用，我已经卸载了 node，安装了 nvm 和最新的 node，设置

Ok, after hours of research and tryouts, I have uninstalled node, installed nvm and latest node, set

nvm use --delete-prefix v13.7.0 --silent >> /dev/null

并将其添加到 ~/.bashrc

现在一切正常

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