esperlu

#!/bin/sh

# Converts a mysqldump file into a Sqlite 3 compatible file. It also extracts the MySQL `KEY xxxxx` from the
# CREATE block and create them in separate commands _after_ all the INSERTs.

# Awk is choosen because it's fast and portable. You can use gawk, original awk or even the lightning fast mawk.
# The mysqldump file is traversed only once.

# Usage: $ ./mysql2sqlite mysqldump-opts db-name | sqlite3 database.sqlite
# Example: $ ./mysql2sqlite --no-data -u root -pMySecretPassWord myDbase | sqlite3 database.sqlite

rkh

# coding: utf-8
require 'sinatra'
set server: 'thin', connections: []

get '/' do
  halt erb(:login) unless params[:user]
  erb :chat, locals: { user: params[:user].gsub(/\W/, '') }
end

get '/stream', provides: 'text/event-stream' do

burke

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

maccman

# Usage: redis-cli publish message hello

require 'sinatra'
require 'redis'

conns = []

get '/' do
  erb :index
end

maccman

# Usage: redis-cli publish message.achannel hello

require 'sinatra'
require 'redis'

conns = Hash.new {|h, k| h[k] = [] }

Thread.abort_on_exception = true

get '/' do

chuckbjones

# define a method to run rake tasks
def run_rake(task, options={}, &block)
  rake = fetch(:rake, 'rake')
  rails_env = fetch(:rails_env, 'production')

  command = "cd #{current_path} && #{rake} #{task} RAILS_ENV=#{rails_env}"
  run(command, options, &block)
end

fivetanley

ruby-1.9.3-p392 cumulative performance patch for rbenv

(I guarantee nothing. No warranty I am not responsible blah blah blah. Seems to work great for me so far. Thanks to Tyler Bird who I forked this from.)

This installs a patched ruby 1.9.3-p392 with the railsexpress patchsets: https://github.com/skaes/rvm-patchsets

Requirements

• rbenv
• ruby-build

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

O-I

One of the many reasons I love working with Ruby is it has a rich vocabulary that allows you to accomplish your goals with a minimal amount of code. If there isn't a method that does exactly what you want, it's usually possible to build an elegant solution yourself.

Let's take the example of simulating the rolling of a die.

We can represent a die as an array of its faces.

die = [*?⚀..?⚅]
# => ["⚀", "⚁", "⚂", "⚃", "⚄", "⚅"]

paulirish

/* bling.js */

window.$ = document.querySelectorAll.bind(document);

Node.prototype.on = window.on = function (name, fn) {
  this.addEventListener(name, fn);
}

NodeList.prototype.__proto__ = Array.prototype;