Marcus Gadbem marcusgadbem

Setup new Mac with OSX Lion from scratch

These commands are good as of 2011-07-27.

Install xcode 4

App store http://itunes.apple.com/us/app/xcode/id448457090?mt=12) The download/install takes awhile so start it first. When it finishes downloading you will still need to run it to complete installation.

iTerm2 http://www.iterm2.com/

the default index.html does not work well in prodution mode, so do not borther to config that, just delete it and go on.

To put things in production mode, do

 rails g scaffold items name:string
 rake db:migrate RAILS_ENV=production
 rm public/index.html
 #change route.rb point root to items#index
 rake assets:precompile
 sudo service nginx restart

./config/unicorn_init.sh stop

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

	#
	# Recurring Job using Delayed::Job
	#
	# Setup Your job the "plain-old" DJ (perform) way, include this module
	# and Your handler will re-schedule itself every time it succeeds.
	#
	# Sample :
	#
	# class MyJob
	# include Delayed::ScheduledJob

	/* The API controller
	Exports 3 methods:
	* post - Creates a new thread
	* list - Returns a list of threads
	* show - Displays a thread and its posts
	*/


	var Thread = require('../models/thread.js');
	var Post = require('../models/post.js');

	# app/models/ability.rb

	# All front end users are authorized using this class
	class Ability
	include CanCan::Ability

	def initialize(user)
	user \|\|= User.new

	can :read, :all

	# First install tmux
	brew install tmux

	# For mouse support (for switching panes and windows)
	# Only needed if you are using Terminal.app (iTerm has mouse support)
	Install http://www.culater.net/software/SIMBL/SIMBL.php
	Then install https://bitheap.org/mouseterm/

	# More on mouse support http://floriancrouzat.net/2010/07/run-tmux-with-mouse-support-in-mac-os-x-terminal-app/

	upstream your-app {
	# fail_timeout=0 means we always retry an upstream even if it failed
	# to return a good HTTP response (in case the Unicorn master nukes a
	# single worker for timing out).
	server unix:/tmp/your_app.socket fail_timeout=0;
	}

	server {
	listen 80;

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	<?php
	/**
	* WordPress Query Comprehensive Reference
	* Compiled by luetkemj - luetkemj.com
	*
	* CODEX: http://codex.wordpress.org/Class_Reference/WP_Query
	* Source: http://core.trac.wordpress.org/browser/tags/3.3.1/wp-includes/query.php
	*/

	$args = array(