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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:

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[user]
	name = Pavan Kumar Sunkara
	email = [email protected]
	username = pksunkara
[core]
	editor = vim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	excludesfile = ~/.gitignore
[sendemail]
	smtpencryption = tls

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class ExampleJob < ApplicationJob
  queue_as :default
  
  def perform(user)
    # do some work
    
    # HACK: get around limitations in devise/warden when rendering
    #       views outside the context of a formal http request
    renderer = ::ApplicationController.renderer.new
    renderer_env = renderer.instance_eval { @env }

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Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

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1. Gemfile

gem 'browserify-rails'
gem 'react-rails'

Browserify-rails allows to use browserify within assets pipeline. React-rails is here only to allow to use #react_component (and thus, prerendering).

Note that jquery-rails can be removed from Gemfile, the npm version of jquery and jquery-ujs will be used instead.

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import React, { PropTypes } from 'react';
import { findDOMNode } from 'react-dom'
import getOffset from 'dom-helpers/query/offset';

let ScrollSpy = React.createClass({
  childContextTypes: {
    $scrollSpy: PropTypes.shape({
      anchor: PropTypes.func,
      activeTarget: PropTypes.string
    })

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# Shortcut for assigning a heredoc to a variable.
# http://stackoverflow.com/a/8088167
define() {
    # read will have exit status 1 whenever it assigns to a variable or it gets to EOF.
    read -r -d '' "${1}" || true
}

_other_aws_common_stuff() {
  export AWS_DEFAULT_PROFILE="${AWS_PROFILE}"
  local SCRIPT

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2013-09-28 15:54:13.369 iOSFontListTest[3753:60b] Font Family Names (
    "Academy Engraved LET",
    "Al Nile",
    "American Typewriter",
    "Apple Color Emoji",
    "Apple SD Gothic Neo",
    Arial,
    "Arial Hebrew",
    "Arial Rounded MT Bold",
    Avenir,

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Sublime Text 2 - Useful Shortcuts

Tested in Mac OS X: super == command

Open/Goto

---

• super+t: go to file
• super+ctrl+p: go to project
• super+r: go to methods