Install

npm install bundle-collapser

yarn add bundle-collapser

bundle-collapser

convert bundle paths to IDs to save bytes in browserify bundles

example

The easiest way to use bundle-collapser is from the plugin:

$ browserify -p bundle-collapser/plugin main.js

Instead of the usual output which would have the original require('./foo.js')
style calls in it, the output just has require(2) style paths, which minifies
more compactly:

 (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
module.exports = function (n) { return n * 5 }

},{}],2:[function(require,module,exports){
var bar = require(1);

module.exports = function (n) { return bar(n+1) }

},{}],3:[function(require,module,exports){
var foo = require(2);
var bar = require(1);

console.log(foo(5) * bar(2));

},{}]},{},[3]);

api

You can use bundle-collapser from the api too:

 var collapse = require('bundle-collapser');
var fs = require('fs');

var src = fs.readFileSync(__dirname + '/bundle.js', 'utf8');
collapse(src).pipe(process.stdout);

usage

There is also a command-line program included in this distribution:

usage: bundle-collapser {FILE | -} {OPTIONS}

  Collapse a browser-pack/browserify bundle from STDIN or a FILE.

OPTIONS:

  -h --help  Show this message.

methods

 var collapse = require('bundle-collapser')

var stream = collapse(src)

Return a readable stream of output from
browser-pack with the input source
string src converted to have its require() calls collapsed down to the
dependency targets in the "deps" fields from the unpacking.