JackDanger

module ActiveRecord
  module ConnectionAdapters
    class AbstractAdapter
      protected

        # Turn:
        # User Load (6.3ms)  SELECT * FROM "users"
        # Into:
        # User Load /app/views/_partial.erb:27 (6.3ms) in `_app_views_partial_erb`  SELECT * FROM "users"

JackDanger

/* Arrays implicitly turn numbers to strings */
var total = 4
total += 5
// total: 9
total += [5]
// total: "95"

/* Arrays are numerically comparable */
1 > 0
// true

JackDanger

class C

  attr_accessor :b

  def foo
    b ? b.foo : raise(NoMethodError.new)
  end

  alias gob foo

JackDanger

#!/usr/bin/env ruby
## Taken from: http://snippets.dzone.com/posts/show/4935
#
# Usage:
# a = AmazonS3Asset.new
# a.copy_over_bucket("myapp_production", "myapp_production")

require 'aws/s3'
require 'mechanize'
require 'logger'

JackDanger

(function(){
  var cloops = $(".rotating_cloop")
  var shown = 0
  var length = cloops.length
  setInterval(function(){
    shown++
    if(shown >= length) shown = 0
    $(cloops[shown-0]).hide();
    $(cloops[shown]).show()
  }, 2000)

JackDanger

#!/bin/bash
set -o errexit
 
# Author: David Underhill
# Script to permanently delete files/folders from your git repository.  To use 
# it, cd to your repository's root and then run the script with a list of paths
# you want to delete, e.g., git-delete-history path1 path2
#
#  retrieved from: http://dound.com/2009/04/git-forever-remove-files-or-folders-from-history/
#

JackDanger

// Forgetful.js is what I use on SSDs to prevent disk wear.
// Because each SSD sector can only be written a set # of times
// it's important not to write huge log files for no reason.
// So my test logs (and some others) are all outputted to this
// node.js instance which keeps track of the throughput
// in simply-named channels.
//
// To use this in, e.g., Rails, put this in environments/test.rb:
//
// class NamedChannelSocket < TCPSocket

JackDanger

# My record of provisioning a Solr server on EC2 (mostly mistakes):

# Take 2:
## AMI: ami-1515f67c (bare ubuntu)

sudo apt-get update
sudo apt-get install rubygems1.8
sudo apt-get install git-core
git clone git://github.com/JackDanger/jackbash.git ./.bash
source ~/.bash/rc

JackDanger

namespace :prune do

  desc "Delete all unnecessary files from vendored Rails"
  task :rails do
    require 'fileutils'
    list = Dir.glob("vendor/rails/*/test")
    FileUtils.rm_rf list, :verbose => true unless list.empty?
  end

JackDanger

#/bin/bash

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install build-essential

sudo apt-get install ruby ri rdoc mysql-server libmysql-ruby ruby1.8-dev irb1.8 libdbd-mysql-perl libdbi-perl libmysql-ruby1.8 libmysqlclient15off libnet-daemon-perl libplrpc-perl libreadline-ruby1.8 libruby1.8 mysql-client-5.1 mysql-common mysql-server-5.1 rdoc1.8 ri1.8 ruby1.8 irb libopenssl-ruby libopenssl-ruby1.8 libhtml-template-perl mysql-server-core-5.1 libmysqlclient16 libreadline5 psmisc

wget http://rubyforge.org/frs/download.php/60718/rubygems-1.3.5.tgz
tar xvzf rubygems-1.3.5.tgz