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require 'net/ssh'

desc "Deploy site to production"
task :deploy => :environment do
  host        = 'yourhost.com'
  user        = 'username'
  options     = {:keys => '~/.ssh/keys/yourserver.pem'}
  remote_path = '/path/to/rails_app'

  commands = [

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# https://gist.github.com/1214052
require 'sinatra/base'

class ResqueWeb < Sinatra::Base
  require 'resque/server'
  use Rack::ShowExceptions

  if CFG[:user].present? and CFG[:password].present?
    Resque::Server.use Rack::Auth::Basic do |user, password|
      user == CFG[:user] && password == CFG[:password]

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class ActionDispatch::Routing::Mapper
  def draw(routes_name)
    instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb")))
  end
end

BCX::Application.routes.draw do
  draw :api
  draw :account
  draw :session

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# http://devmull.net/articles/unicorn-resque-bluepill
# http://www.jamievandyke.com/want-some-campfire-with-that-bluepill
app_name = 'rails'
app_env = 'production'

Bluepill.application(app_name) do |app|
  RAILS_ROOT = "/var/www/#{app_name}/"
  app.uid = app.gid = "www-rails"
  app.working_dir = RAILS_ROOT
  worker_queues = %w[queue]

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# Capistrano configuration
# 
# require 'new_relic/recipes'         - Newrelic notification about deployment
# require 'capistrano/ext/multistage' - We use 2 deployment environment: staging and production.
# set :deploy_via, :remote_cache      - fetch only latest changes during deployment
# set :normalize_asset_timestamps     - no need to touch (date modification) every assets
# "deploy:web:disable"                - traditional maintenance page (during DB migrations deployment)
# task :restart                       - Unicorn with preload_app should be reloaded by USR2+QUIT signals, not HUP

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# Nginx can serve FLV/MP4 files by pseudo-streaming way without any specific media-server software. 
# To do the custom build we use 2 modules: --with-http_secure_link_module --with-http_flv_module
# This module "secure-link" helps you to protect links from stealing away.
#
# NOTE: see more details at coderwall: http://coderwall.com/p/3hksyg

$ cd /usr/src
$ wget http://nginx.org/download/nginx-1.2.2.tar.gz
$ tar xzvf ./nginx-1.2.2.tar.gz && rm -f ./nginx-1.2.2.tar.gz

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class Symbol
  def | other
    if other.is_a? Proc
      -> arg { other.call(arg.send(self)) }
    else
      -> arg { arg.send(self).send(other) }
    end
  end

  def call *args

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unicorn_profiles="dev prod"

unicorn_dev_enable="yes"
unicorn_dev_user="devuser"
unicorn_dev_listen="/tmp/unicorn.dev.socket"
unicorn_dev_dir="/usr/local/www/dev"
unicorn_dev_config="/usr/local/www/dev/config.ru"
unicorn_dev_env="development"
unicorn_dev_flags=""	# any additional flags
unicorn_dev_rails="YES" # For rails

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Когда мы хотим скопировать данные из production окружения Ruby on Rails приложения в development или staging, обычно, нам нужно скопировать дамп базы данных и статические файлы (например, изображения загруженные пользователями). Копирование базы может не представляет проблем (например, ее можно копировать из бэкапов или резервных серверов БД). А вот копирование статических файлов занимает много времени и ресурсов сервера с которого копируют (и на который копируются) файлы.

В рассылке ror2ru Макс Лапшин предложил

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class CarConfig
  include ActiveSupport::Configurable
  config_accessor :brand
end

class Car
  attr_accessor :brand
  
  def initialize
    self.brand = self.class.config.brand