How can I write multiline scripts in npm scripts?

Question

My package.json looks like the following:

{
  \"name\": \"project\",
  \"version\": \"1.0.0\",
  \"description\": \"\",
  \"main\": \"server.js\",
  \"scripts\":         


        

Answer 1

You can't do that.

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, '')
  }
}

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

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.

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.