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function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}

function proml {
  local        BLUE="\[\033[0;34m\]"
  local         RED="\[\033[0;31m\]"
  local   LIGHT_RED="\[\033[1;31m\]"
  local       GREEN="\[\033[0;32m\]"
  local LIGHT_GREEN="\[\033[1;32m\]"

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location ~ ^/assets/ {
  expires 1y;
  add_header Cache-Control public;

  add_header ETag "";
  break;
}

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Goals of this tutorial:

• deploy a new Rails app with capistrano
• make it fast (total process takes less than 5 minutes)
• make it simple (no unecessary config)
• manual ssh to the server not required

Rails application stack:

• nginx
• unicorn
• postgresql

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# e.g.:
# @user.should have_ability(:create, for: Post.new)
# @user.should have_ability([:create, :read], for: Post.new)
# @user.should have_ability({create: true, read: false, update: false, destroy: true}, for: Post.new)
RSpec::Matchers.define :have_ability do |ability_hash, options = {}|
  match do |user|
    ability         = Ability.new(user)
    target          = options[:for]
    @ability_result = {}
    ability_hash    = {ability_hash => true} if ability_hash.is_a? Symbol # e.g.: :create => {:create => true}

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# in test.rb
require Rails.root.join('config/initializers/diagnostic')
config.middleware.use(MyApp::DiagnosticMiddleware)


# config/initializers/diagnostic.rb
module MyApp
  class DiagnosticMiddleware
    FILENAME = 'log/diagnostic.log' unless defined? FILENAME

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Hey!

Here is what I currently use:

Put this in your application helper:

def image_assets
    image_asset_dir = Rails.root.join('app', 'assets', 'images')

    assets = {}

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#!/bin/bash

# Fail if any commands fail
set -e
set -o pipefail

# These are ec2 tags from which we will determine where to deploy
ec2_stage=$DEPLOY_STAGE
ec2_app="core"
ec2_role="app"

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    images = @album.image_assignments

    changed = Array.new

    # Get the images that changed order
    for image in images
      order = params["order_#{image.image_id}".to_sym]
      if !order.blank? && order =~ /^\d+$/ && image.position.to_i != order.to_i
        image.position = order.to_i
        changed << image

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# Options:
# * :tries - Number of retries to perform. Defaults to 1.
# * :on - The Exception on which a retry will be performed. Defaults to Exception, which retries on any Exception.
#
# Example
# =======
#   retryable(:tries => 1, :on => OpenURI::HTTPError) do
#     # your code here
#   end
#

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# put in config/application.rb

config.to_prepare do
  ::PagesController.module_eval do
    caches_page :show, :unless => proc {|c| c.user_signed_in? || c.flash.any? }
    caches_page :home, :unless => proc {|c| c.user_signed_in? || c.flash.any? }
  end
  ::Page.module_eval do
    after_save :clear_static_caching!
    after_destroy :clear_static_caching!