Diego Moreira dimoreira

Description

Heroku is a simple way to publish your Rails app, and a powerful platform that will allow it to scale. In this episode, Jay McGavren gets you started with your first Heroku app.

Set up your Rails app

Isolate your gem environment

You WANT Rails to fail locally if a gem isn't in your Gemfile

Convert MOV to GIF using FFmpeg and ImageMagick

I tried a few different techniques to make a GIF via command-line and the following gives me the best control of quality and size. Once you're all setup, you'll be pumping out GIFs in no time!

Preparation

Install FFmpeg

$ brew install ffmpeg [all your options]
- Example: $ brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-frei0r --with-libass --with-libvo-aacenc --with-libvorbis --with-libvpx --with-opencore-amr --with-openjpeg --with-opus --with-rtmpdump --with-schroedinger --with-speex --with-theora --with-tools

Install ImageMagick

	##
	# Fazendo deploy com o capistrano de uma aplicação Rails
	# usando servidores da Amazon ec2 e unicorn como servidor
	# o versionamento do ruby no ambiente de produção foi feito
	# com o rbenv ( https://github.com/sstephenson/rbenv ), o SO
	# esta com o Centos 5.3 x64
	#
	# Primeiramente é necessario instalar a gem com o comando:
	# gem install capistrano
	# ou adicione a linha: gem "capistrano", :group => :development

	sudo apt-get -y update
	sudo apt-get -y install build-essential zlib1g-dev git-core sqlite3 libsqlite3-dev libssl-dev libreadline-dev
	git clone git://github.com/sstephenson/rbenv.git ~/.rbenv
	echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.profile
	echo 'eval "$(rbenv init -)"' >> ~/.profile
	source .profile
	git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
	rbenv install --list #lista versões disponíveis do ruby
	rbenv install 1.9.3-p374 # instala a última versão estável
	rbenv rehash # sempre que instalar algum binário do ruby (gem ou versão) tem que rodar o rehash

	<!DOCTYPE html>
	<head>
	<title>Stay Standalone</title>
	<meta name="apple-mobile-web-app-capable" content="yes">
	<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
	<script src="stay_standalone.js" type="text/javascript"></script>
	</head>
	<body>
	<ul>
	<li><a href="http://google.com/">Remote Link (Google)</a></li>

	var crypto = require('crypto');

	var SaltLength = 9;

	function createHash(password) {
	var salt = generateSalt(SaltLength);
	var hash = md5(password + salt);
	return salt + hash;
	}