pulling-deps

Pull CJS require, AMD define, as well as ESM dynamic and static imports.

pulling-deps accomplishes this by building and traversing an AST leveraging acorn.

usage

install

npm

npm install pulling-deps

cli

To run the cli command directly in your console, you will need to install pulling-deps globally. Alternatively, you can create npm scripts in your package json, or use npx. Running npm scripts or npx are the preferred methods for using the CLI.

pull-deps which will extract the dependencies in the files you specify

$ pull-deps src/*.js

$ echo "import('./src/index.js')" | pull-deps

pull-vendor which will extract only node module dependencies

$ pull-vendor src/*.js

$ echo "import('./src/index.js')" | pull-vendor

pull-tree which will generate a flat map of all the dependencies

$ pull-tree src/*.js

$ echo "import('./src/index.js')" | pull-tree

api

pullDeps.fromSource

is a method that takes in a JavaScript string source as the first parameter, and an optional object as the second paramter. The second parameter is an object that is pass straight to acorn.

const pullDeps = require('pullig-deps');

// This gets us an object that has a property `dependencies`, which is an array
// of all the dependencies found.
const result = pullDeps.fromSource(`
  import a from "esmdep";
  const b = require("cjsdep");
  import("dynamicESM");
`);

// Print to console the dependencies, which will have `esmdep`, `cjsdep`, and `dynamicESM`.
console.log(result.dependencies);

pullDeps.fromAST

is a method that takes in as its only parameter an AST as created by acorn.

const acorn = require('acorn-dynamic-import/lib/inject').default(require('acorn'));
const pullDeps = require('pulling-deps');

// Walk the AST to get all the dependencies out
const result = pullDeps.fromAST(acorn(`
  import a from "esmdep";
  const b = require("cjsdep");
  import("dynamicESM");
`));

// Print to console the dependencies, which will have `esmdep`, `cjsdep`, and `dynamicESM`.
console.log(result.dependencies);

build

grunt build

test

grunt test

License

MIT