ouyangzhiping

// This is the main application configuration file.  It is a Grunt
// configuration file, which you can learn more about here:
// https://github.com/cowboy/grunt/blob/master/docs/configuring.md
//
module.exports = function(grunt) {

  grunt.initConfig({

    // The clean task ensures all files are removed from the dist/ directory so
    // that no files linger from previous builds.

ouyangzhiping

# Usage Example: $ ddl-confreaks rubyconf2012 ~/Downloads/
# save it as /etc/profiles/ddl.confreaks.sh
##
## currently it checks for lowest resolution video mostly {640x360} and downloads it

function ddl-confreaks(){
  if [ $# -ne 2 ];
  then
    echo 'Failed. Syntax: $> ddl-confreaks EVENT_NAME DOWNLOAD_PATH'
    return

ouyangzhiping

#!/usr/bin/env ruby

require 'mechanize'

@username      = USERNAME
@password      = PASSWORD
@download_path = DOWNLOAD_PATH

unless File.directory? @download_path
  puts "@{download_path} doesn't exist!"

ouyangzhiping

#!/usr/bin/env ruby

require "nokogiri"
require "open-uri"

def download(url, output_file)
  exit unless system("wget -c #{url} --load-cookies=cookies.txt -O #{output_file}")
end

def download_pages

ouyangzhiping

Screencasting Framework

The following document is a written account of the Code School screencasting framework. It should be used as a reference of the accompanying screencast on the topic.

Why you should care about screencasting?

You're probably aren't going to take the time to read this document if you're not interested, but there are a lot of nice side effects caused by learning how to create quality screencasts.

1. Communicating more effectively - At Envy Labs we produce screencasts for our clients all the time. Whether it's demoing a new feature or for a presentation for an invester, they're often much more effective and pleasent than a phone call or screen sharing.

ouyangzhiping

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:

ouyangzhiping

Zero downtime deploys with unicorn + nginx + runit + rvm + chef

Below are the actual files we use in one of our latest production applications at Agora Games to achieve zero downtime deploys with unicorn. You've probably already read the GitHub blog post on Unicorn and would like to try zero downtime deploys for your application. I hope these files and notes help. I am happy to update these files or these notes if there are comments/questions. YMMV (of course).

Other application notes:

• Our application uses MongoDB, so we don't have database migrations to worry about as with MySQL or postgresql. That does not mean that we won't have to worry about issues with the database with indexes being built in MongoDB or what have you.
• We use capistrano for deployment.

Salient points for each file:

ouyangzhiping

The range sliders at the top change the values for the force-directed algorithm and the buttons load new graphs and apply various techniques. This will hopefully serve as a tool for teaching network analysis and visualization principles during my Gephi courses and general Networks in the Humanities presentations.

Notice this includes a pretty straightforward way to load CSV node and edge lists as exported from Gephi.

It also includes a pathfinding algorithm built for the standard data structure of force-directed networks in D3. This requires the addition of .id attributes for the nodes, however.

Now with Clustering Coefficients!

Also, it loads images for nodes but the images are not in the gist. The code also refers to different network types but the data files on Gist only refer to the transportation network.

ouyangzhiping

#!/usr/bin/env python
# Twilio Tools for Reminding & Calling
# Download the twilio-python library from http://twilio.com/docs/libraries
from twilio.rest import TwilioRestClient
from twilio import twiml
from flask import Flask

app = Flask(__name__)

account = "TWILIO ACCOUNT"

ouyangzhiping

Install Python

$ brew install readline sqlite gdbm
$ brew install python --universal --framework
$ python --version
Python 2.7

Symlinks...