Oleksandr Serhiienko sigerello

These are some of my (Ryan Bates) favorite gems to use for various tasks:

JavaScript: jQuery with jquery-rails
Pagination: Kaminari
Testing: RSpec, Cucumber and Capybara
Factories: Factory Girl
Authentication: Nifty Generators and Omniauth
Authorization: CanCan
File Attachments: Carrierwave
HTML/XML Parsing: Nokogiri

How to install MongoDB 2.0 on Mac OS X (>= Leopard)

Procedure

The whole install procedure is like the following.
You would have to do 7 steps.

Download the latest tar file, and expand it.
Move it to /usr/local/, and make a symbolic link to the folder.
Add path to MongoDB binaries.
Make an user that "mongod" runs on, and group that owns the user.

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt

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:

	#!/bin/sh

	### BEGIN INIT INFO
	# Provides: unicorn
	# Required-Start: $local_fs $remote_fs $network $syslog
	# Required-Stop: $local_fs $remote_fs $network $syslog
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: starts the unicorn web server
	# Description: starts unicorn

	#Deploy and rollback on Heroku in staging and production
	task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
	task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

	namespace :deploy do
	PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
	STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

	task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
	task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

	require 'fileutils'

	# Warning: The following deploy task will completely overwrite whatever is currently deployed to Heroku.
	# The deploy branch is rebased onto master, so the push needs to be forced.

	desc "Deploy app to Heroku after precompiling assets"
	task :deploy do
	deploy_branch = 'heroku'
	remote = 'heroku'
	deploy_repo_dir = "tmp/heroku_deploy"

	cd ~
	sudo yum update
	sudo yum install java-1.7.0-openjdk.i686 -y

	wget https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.19.9.tar.gz -O elasticsearch.tar.gz

	tar -xf elasticsearch.tar.gz
	rm elasticsearch.tar.gz
	mv elasticsearch-* elasticsearch
	sudo mv elasticsearch /usr/local/share

	# ========================================
	# Testing n-gram analysis in ElasticSearch
	# ========================================

	curl -X DELETE localhost:9200/ngram_test
	curl -X PUT localhost:9200/ngram_test -d '
	{
	"settings" : {
	"index" : {
	"analysis" : {