detect-import-require

detect-import-require

This is like detective, but with a narrow focus and thin API, specifically aimed at supporting either import and/or require statements, and not much more.

Install

npm install detect-import-require --save

Example

Given the following file:

source.js

var foo = require('a').foo
var bar = require('./blah.js')
import { uniq } from 'lodash'
import { resolve } from 'path'

var fs = require('fs')
var detect = require('detect-import-require')

var src = fs.readFileSync('source.js', 'utf8')
console.log(detect(src))
//=> [ 'a', './blah.js', 'lodash', 'path' ]

Usage

modules = detect(src, [opt])

Returns an array of module names (require paths) from the given src String or Buffer, which is assumed to be ES6/ES5. By default, looks for import and require statements. Results are not de-duplicated, and are in the order they are found.

Options:

• imports (Boolean) - whether to look for import statements, default true
• requires (Boolean) - whether to look for require statements, default true

modules = detect.find(src, [opt])

Takes the same options as above, but returns an object with the following additional data:

{
  strings: [],
  expressions: [],
  nodes: []
}

Where strings is the array of module names, expressions is an array of expressions from dynamic require() statements, and nodes is an array of AST nodes for each found require/import statement.

Expressions do not appear in imports, and look like this:

[
  "path.join(__dirname, '/foo.js')",
  "__dirname + '/file.js'"
]

License

MIT, see LICENSE.md for details.