danparsons

How to stream the London 2012 Olympics

There have been several HOWTOs posted regarding streaming the 2012 Olympics using HTTP / SOCKS proxies via SSH and other similar methods. None of these actually work using the latest Flash on Mountain Lion (with Firefox, Chrome or Safari). Additionally, the third-party streaming sites don't provide BBC's amazing interface, which lets you quickly skip to individual competitors and events. However, setting up an OpenVPN server does work, with some tweaks. You'll get the exact same UX that people in England receive.

• Get a Linode VM in the UK. The 512MB server for $20 works just fine. (If you want to use my referral link, go for it: http://bit.ly/OuzdVe)

• Follow the standard OpenVPN installation documentation. (Basically, 'apt-get install openvpn' or 'yum install openvpn' and then follow these docs: http://openvpn.net/index.php/open-source/documentation/howto.html). For an OS X client, I prefer Viscosity: http://www.thesparklabs

travisvalentine

export PATH=${PATH}:/usr/local/sbin

export ARCHFLAGS='-arch x86_64' 

# memcached
alias mcd='memcached -d -l 127.0.0.1 -p 11211'
alias mck='killall memcached'
alias mcst='ps ax | grep memcached | grep -v grep'

# RVM

jeffreyiacono

# round 1! => nonblocking example
[process a] $ flock -en sleeper.lock ./sleeper.sh
time to sleep ...
[process b] $ flock -en sleeper.lock ./sleeper.sh
# ^ will exit b/c of n switch: "Fail (with an exit code of 1) 
#   rather than wait if the lock cannot be immediately acquired.
... waking up # <= process a returning


# round 2! => blocking example

xaviershay

class RegistrationsController < ApplicationController
  include Injector::ControllerMethods

  provided_by Controller::Registration
end

lecram

#! /usr/bin/env python

"""{escher} -- one-file key-value storage.

What?
  This is a toy application to manage persistent key-value string data.
  The file {escher} is *both* the application and its data.
  When you run any of the commands below, the file will be executed and,
  after data change, it will rewrite itself with updated data.
  You can copy the file with whatever name to create multiple datasets.

jakearchibald

Snow in canvas land

Other people's code is awful, and your own code from months previous counts as someone else's. With this and the festive spirit in mind, I dug up a canvas snow demo I made two years ago to see how bad my code really was.

Turns out the performance landscape has changed quite a bit, but after applying a couple of workarounds, best practices, and memory management, I got the demo running smoother than it ever did.

Ugh, I can't believe I just wrote "performance landscape". Anyway...

How does the demo work?

christophergandrud

#####################
# R function for downloading plain-text data from GitHub
# Christopher Gandrud
# 7 January 2013
#####################

# source_GitHubData is directly based on source_url from the Hadley Wickham's devtools package

source_GitHubData <-function(url, sep = ",", header = TRUE)
{

markpundsack

## The quick-and-nasty CVE-2013-0156 Heroku inspector!
## Originally brought to you by @elliottkember with changes by @markpundsack @ Heroku
## Download and run using:
## ruby heroku-CVE-2013-0156.rb
 
`heroku list`.split("\n").each do |app|
  app = app.strip
  
  # Some "heroku apps" lines have === formatting for grouping. They're not apps.
  next if app[0..2] == "==="

mislav

Jim Weirich:

This is how I explain it… Ruby has Procs and Lambdas. Procs are created with Proc.new { }, lambdas are created with lambda {} and ->() {}.

In Ruby 1.8, proc {} creates lambda, and Ruby 1.9 it creates procs (don't ask).

Lambdas use method semantics when handling parameters, procs use assignment semantics when handling parameters.

This means lambdas, like methods, will raise an ArgumentError when called with fewer arguments than they were defined with. Procs will simply assign nil to variables for arguments that were not passed in.

da3mon

#!/usr/bin/env ruby -wKU
# encoding: UTF-8

class Flip
  # sɹǝɔuɐʃɐqpɐoʃ ƃuıʞɔnɟノ(ಠ 益ಠ ノ) -> (ノಠ益ಠ)ノ彡fucking loadbalancers
  # add arg support for flipping, reverse flipping, copying to clipboard, text, table, face style
  TABLE = {
    "a" => "\220\311", "b" => "q", "c" => "\224\311", "d" => "p", "e" => "\235\307", "f" => "\237\311", "g" => "\203\306", "h" => "\245\311", "i" => "\261\304",
    "j" => "\276\311", "k" => "\236\312", "l" => "\203\312", "m" => "\257\311", "n" => "u", "r" => "\271\311", "t" => "\207\312", "v" => "\214\312", "w" => "\215\312",
    "y" => "\216\312", "." => "\231\313", "[" => "]", "(" => ")", "{" => "}", "?" => "\277\302", "!" => "\241\302", "\"" => ",", "<" => ">", "_" => "\276\200\302",