Paul Rumkin rumkin

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Software Developer.

rumkin / ssh-proxy.sh

Created September 25, 2014 10:00

Node debug proxy for vagrant

vagrant ssh -- -L 5858:127.0.0.1:5858 -N

rumkin / btrfs-partition-with-file.sh

Last active August 29, 2015 14:16

Create btrfs partition from file

	# Partition file
	FILE=/tmp/drive
	# Mount directory
	MOUNT=/mnt/drive

	# Allocate 10Gb empty file
	fallocate -l 10G $FILE
	# Mount file to loop back device
	losetup /dev/loop0
	# Create btrfs _without RAID_

rumkin / inspectorrc

Created September 25, 2015 16:33

node-inspector priest configuration

	{
	"web-port": 8000,
	"hidden": ["node_modules/", "tests/", "/node_modules/"],
	"preload": true
	}

rumkin / curve25519.js

Created November 17, 2015 09:21

VanillaJS Curve25519 implementation

	// Snarfed from http://savannah.gnu.org/task/?6432
	// Ostensibly Copyright (c) 2007 Michele Bini, GPL

	var c255lbase32chars = "abcdefghijklmnopqrstuvwxyz234567";
	var c255lbase32values = {"a":0, "b":1, "c":2, "d":3, "e":4, "f":5, "g":6, "h":7, "i":8, "j":9, "k":10, "l":11, "m":12, "n":13, "o":14, "p":15, "q":16, "r":17, "s":18, "t":19, "u":20, "v":21, "w":22, "x":23, "y":24, "z":25, "2":26, "3":27, "4":28, "5":29, "6":30, "7":31 };
	function c255lbase32encode(n, x) {
	var c;
	var r = "";
	for (c = 0; c < 255; c+=5) {
	r = c255lbase32chars.substr(c255lgetbit(n, c) + c255lgetbit(n, c+1)2 + c255lgetbit(n, c+2)4 + c255lgetbit(n, c+3)8 + c255lgetbit(n, c+4)16, 1) + r;

rumkin / moop.js

Last active January 16, 2016 09:08

	// Extend class
	function extend (proto) {
	var Super = this;
	var ctor;

	if (proto.hasOwnProperty('constructor')) {
	ctor = proto.constructor;
	} else {
	ctor = function () {
	Super.apply(this, arguments);

rumkin / sha-256.js

Created February 6, 2016 17:52

	;(function(){
	/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
	/* SHA-256 implementation in JavaScript (c) Chris Veness 2002-2014 / MIT Licence */
	/* */
	/* - see http://csrc.nist.gov/groups/ST/toolkit/secure_hashing.html */
	/* http://csrc.nist.gov/groups/ST/toolkit/examples.html */
	/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

	/* jshint node:true // global define, escape, unescape */
	'use strict';

rumkin / result.txt

Last active June 21, 2016 12:23

Monomorphic vs megamorphic vs typed modes benchmark

	Monomorphic x 1,989 ops/sec ±1.90% (71 runs sampled)
	Megamorphic x 47.27 ops/sec ±1.03% (58 runs sampled)
	Typed x 2,550 ops/sec ±2.10% (57 runs sampled)

rumkin / maps-vs-objects.bench.js

Created June 21, 2016 12:13

Compare objects with variadic property set versus Map

	const Benchmark = require('benchmark');

	const suite = new Benchmark.Suite;

	// Test data set size
	const n = process.env.SET_SIZE \|\| 100000;
	// Megamorphic objects array
	const objects = Array(n);
	// Array of map instances
	const maps = Array(n);

rumkin / pretty-json.js

Created July 5, 2016 16:19

Prettify json passed to stdio and output to stdout

	#!/usr/bin/env node

	// Stdin JSON prettifier
	// Partially based on https://gist.github.com/kristopherjohnson/5065599

	const {inspect} = require('util');
	const {stdin, stdout} = process;

	var input = '';

rumkin / middleware.js

Created August 8, 2016 11:56

Koa boilerplate code

	import Router from 'koa-router';

	export function moduleMiddleware(options = {}) {
	const router = new Router();

	router.get('/', async (ctx, next) => {
	// ... do some job
	});

	return router;