如何在 npm 脚本中编写多行脚本? [英] How can I write multiline scripts in npm scripts?

问题描述

我的 package.json 如下所示:

My package.json looks like the following:

{
  "name": "project",
  "version": "1.0.0",
  "description": "",
  "main": "server.js",
  "scripts": {
    "lint": "./node_modules/eslint/bin/eslint.js --format \"./node_modules/eslint-friendly-formatter/index.js\" .",
    "build:server": "./node_modules/babel-cli/bin/babel.js . -d dist/server --ignore node_modules,dist,client,public,webpack*"
  }
}

如您所见，lint 和 build:server 命令难以阅读，因此我想将它们分成多行.

As you can see, the lint and build:server command are hard to read, so I want to break them into multiple lines.

我尝试使用 \，但它会抛出如下错误:

I've tried to use \, but it throws errors like:

npm ERR! Failed to parse json
npm ERR! Unexpected token ' ' at 11:80
npm ERR! :server": "./node_modules/babel-cli/bin/babel.js . -d dist/server \
npm ERR!                                                                   ^

我该怎么做?

只是为了编写另一个像 build.sh 这样的 bash 文件并在像 ./build.sh server 这样的 npm 脚本中使用它?

Only to write another bash file like build.sh and use it in npm scripts like ./build.sh server ?

推荐答案

你不能那样做.

以下代码在 read-json.js 中，它位于 node_modules/npm/node_modules/read-package-json 包中，用于 run-script.js 执行 $ npm run-script ~~ 或 $ npm run ~~ ，这是它的别名.

The following code is in read-json.js which is in package node_modules/npm/node_modules/read-package-json which is used in run-script.js to execute $ npm run-script ~~ or $ npm run ~~ which is its alias.

function scriptpath (file, data, cb) {
  if (!data.scripts) return cb(null, data)
  var k = Object.keys(data.scripts)
  k.forEach(scriptpath_, data.scripts)
  cb(null, data)
}

function scriptpath_ (key) {
  var s = this[key]
  // This is never allowed, and only causes problems
  if (typeof s !== 'string') return delete this[key]

  var spre = /^(\.[\/\\])?node_modules[\/\\].bin[\\\/]/
  if (s.match(spre)) {
    this[key] = this[key].replace(spre, '')
  }
}

scriptpath_ 中的 key 就像代码中的 "build:server".

The key in scriptpath_ is like "build:server" in your code.

this[key] 就像 "./node_modules/babel-cli/bin/babel.js . -d dist/server --ignore node_modules,dist,client,public,webpack*" 在您的代码中.

The this[key] is like "./node_modules/babel-cli/bin/babel.js . -d dist/server --ignore node_modules,dist,client,public,webpack*" in your code.

所以，如果你写的代码不是string类型，换句话说，如果你没有在package.json中写string文本，除非你贡献包npm/read-package-json，否则会报错.

So, if you write the code which is not string type, in other words, if you don't write the string text in package.json, it will be an error unless you contribute to the package npm/read-package-json.

这篇关于如何在 npm 脚本中编写多行脚本?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！