Andy Zeigler andyzei

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.

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

	# Allows filtering out attributes that increment the ActiveRecord optimistic lock version, e.g. updated_at, or
	# other attributes that will not cause a conflict issue.

	module SelectivelyOptimisticallyLockable
	extend ActiveSupport::Concern

	private

	def locking_enabled?
	self.changed.any? {\|att\| !self.class.skips_optimistic_locking?(att) }

	set :application, ''
	set :repo_url, 'git@yoursite.git'
	set :deploy_to, '/var/www/sitename'

	set :linked_dirs, %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system}

	set :keep_releases, 5
	set :sudo, true
	set :rbenv_type, :user
	set :rbenv_ruby, '2.0.0-p353'

	t = 236 # seconds
	Time.at(t).utc.strftime("%H:%M:%S")
	=> "00:03:56"

	# Reference
	# http://stackoverflow.com/questions/3963930/ruby-rails-how-to-convert-seconds-to-time

	####################################
	# BASIC REQUIREMENTS
	# http://graphite.wikidot.com/installation
	# http://geek.michaelgrace.org/2011/09/how-to-install-graphite-on-ubuntu/
	# Last tested & updated 10/13/2011
	####################################

	cd
	sudo apt-get update
	sudo apt-get upgrade

	#! /bin/sh
	### BEGIN INIT INFO
	# Provides: carbon-cache
	# Required-Start: $remote_fs $syslog
	# Required-Stop: $remote_fs $syslog
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: carbon-cache init script
	# Description: An init script for Graphite's carbon-cache daemon.
	### END INIT INFO