arnihermann

const blockhash = "0x5cb3e33c31019c9e5f77f354f150e4d74eb95a029a69738d45c176bc1447e444"

const fs = require("fs").promises
const seedrandom = require("seedrandom")
const chooser = require("random-seed-weighted-chooser").default
const SparkMD5 = require("spark-md5")

const random = seedrandom(blockhash)

const uniques = [{

arnihermann

Why is IRC distributed across multiple servers?

I have been wondering for a long time why IRC networks have multiple servers. Wouldn't it be simpler just to use a single server?

One of the problems of having multiple servers is that netsplits can occur. Anybody who has been on IRC for a while will have witnessed one. Hundreds of people suddenly ripped out of the chat. This can also screw up channel and user modes, and 'some people' have been known to wait for netsplits in order to takeover channels or enter password protected channels.

So lets compare situation (A) a single IRC server everyone connects to with the current setup people use (B) multiple servers. Let's say you run an IRC network with u = 40,000 users and n = 20 server nodes that people connect to via round robin DNS (meaning that when people resolve the DNS it gives them a random server from the set of 20 to connect to). These are vaguely realistic numbers modelled after libera.chat.

So in (B) you have roughly u/n = 2000 clients connected

arnihermann

Resign Expo IPA for associatedDomains

You can also generalize these instructions to modify your ipa for any other reason.

Error message

ERROR ITMS-90046: "Invalid Code Signing Entitlements. Your application bundle's signature contains code signing entitlements that are not supported on iOS. Specifically, value '*' for key 'com.apple.developer.associated-domains' in 'Payload/Exponent.app/Exponent' is not supported."

Assumptions

• My app id is io.getsparks.sparks
• My distribution certificate name is iPhone Distribution: Boost Labs, Inc

arnihermann

define(['transit', 'immutable'], function (Transit, Imm) {
  'use strict';

  var reader = Transit.reader('json', {
    arrayBuilder: {
      init: function () { return Imm.List.of().asMutable(); },
      add: function (ret, val) { return ret.push(val); },
      finalize: function (ret) { return ret.asImmutable(); },
      fromArray: function (arr) { return Imm.List(arr); }
    },

arnihermann

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

arnihermann

require 'formula'

<<-COMMENTS

This is the Homebrew formula for Python.

Versions
--------
This formula is currently tracking version 2.6.x.

arnihermann

# Pyrocfile - Simple Python impementation of Procfile manager
# Written by Chris Testa (http://testa.co/) in 2011
# Released in the Public Domain

import argparse, logging, os.path, random, re, select, signal, subprocess

def _new_logger(name, color=None):
    logger = logging.getLogger(name)
    hdlr = logging.StreamHandler()
    color, end_color = '\033[9%dm' % (color or random.randint(1, 6)), '\033[0m'

arnihermann

#!/usr/bin/env ruby -w

# brew-services(1) - Easily start and stop formulas via launchctl
# ===============================================================
#
# ## SYNOPSIS
#
# [<sudo>] `brew services` `list`<br>
# [<sudo>] `brew services` `restart` <formula><br>
# [<sudo>] `brew services` `start` <formula> [<plist>]<br>

arnihermann

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#