.rvmrc

rvm_gemset_create_on_use_flag=1
rvm use 1.9.2@APPNAME > /dev/null
alias god='god -p APPNAME'
# put the following line to your ~/.rvmrc if you want to have alias setting here:
# unalias god 2>/dev/null

configurations_generator.rb

# #{Rails.root}/lib/generators/<appname>/configurations_generator.rb
class Appname::ConfigurationsGenerator < Rails::Generators::NamedBase
  source_root File.expand_path('../templates', __FILE__)

  def unicorn_god
    template 'unicorn.god', 'config/unicorn.god'
  end
end

deploy.rb

# put it to #{Rails.root}/config/deploy.rb

deploy.template = :rails3tags
deploy.repository = "path@to.repo/access/path.git"
# if you use built-in caches for javascripts and stylesheets, set cache_dirs
deploy.cache_dirs = %w(public/javascripts/main.js public/stylesheets/main.css)

case ENV['environment']
when 'production'
  deploy.application = "APPNAME"
  deploy.user = "USERNAME"
  deploy.hosts = ["PROD.SERVER.NAME"]
  deploy.path = "/home/#{deploy.user}/apps"
  deploy.server = :godlike
  deploy.god_group = "APPNAME"
  deploy.tag = "rls-VERSION"
  before_restarting_server do
    run "rails g APPNAME:configurations #{ENV['environment']} -f"
    run "which -s newrelic_cmd && newrelic_cmd deployments"
  end
when 'staging'
  deploy.application = "APPNAME-staging"
  deploy.user = "USERNAME"
  deploy.hosts = ["STG.SERVER.NAME"]
  deploy.path = "/home/#{deploy.user}/apps"
  deploy.server = :godlike
  deploy.god_group = "APPNAME"
  deploy.tag = "stg-VERSION"
  before_restarting_server do
    run "rails g APPNAME:configurations #{ENV['environment']} -f"
    run "which -s newrelic_cmd && newrelic_cmd deployments"
  end
end

godlike.rb

# put it to #{Rails.root}/lib/inploy/godlike.rb
module Inploy
  module Servers
    module Godlike
      attr_accessor :god_group

      def god_cmd
        "god -p #{god_group}"
      end

      def start_server
        run "#{god_cmd} status > /dev/null || #{god_cmd}"
      end

      def restart_server
        start_server
        Dir.glob('config/*.god').each do |conf|
          run "#{god_cmd} load #{conf}"
        end
        run "#{god_cmd} restart #{god_group}"
      end
    end
  end
end

rails3tags.rb

# put it to #{Rails.root}/lib/inploy/rails3tags.rb
module Inploy
  module Templates
    module Rails3tags
      attr_accessor :tag

      def inploy_task(subtask)
        "rake inploy:local:#{subtask} RAILS_ENV=#{environment} environment=#{environment}#{skip_steps_cmd}"
      end

      def install_gems_cmd
        'bundle install --without test development'
      end

      def remote_setup
        commands = []
        commands << "cd #{path}"
        commands << "git clone --depth 1 #{repository} #{application}"
        commands << "cd #{application}"

        if !@tag.nil? and !@tag.empty?
          commands << "git checkout -f #{tag}"
        elsif !branch.eql? 'master'
          commands << "git checkout -f -b #{branch} origin/#{branch}"
        end

        commands << install_gems_cmd

        remote_run commands.join(" && ")
      end

      def remote_update
        commands = []
        commands << "cd #{application_path}"
        commands << install_gems_cmd
        commands << inploy_task(:update)

        remote_run commands.join(' && ')
      end

      def install_gems
      end

      def update_code
        run ["git checkout -f", "git pull origin #{tag || branch}"].join(' && ')
      end
    end
  end
end