Capistrano deploy with multistage & gitflow

deploy.rb

# /config/deploy.rb

require 'capistrano/ext/multistage'
require 'capistrano_colors'

# Add RVM's lib directory to the load path.
$:.unshift(File.expand_path('./lib', ENV['rvm_path']))

require 'bundler/capistrano'
require "rvm/capistrano"

set :stages, %w(staging production)
set :default_stage, "staging"

set :rvm_ruby_string, '1.9.2'

set :repository, "ssh://gitolite@51shepherd.com:30000/fo-web"
set :scm, :git
set :scm_verbose, true
set :checkout, "export"
set :deploy_via, :remote_cache

set :use_sudo, false

set :bundle_flags, "--deployment --quiet --binstubs=.bin"
set :bundle_without, [:test, :development]

ssh_options[:forward_agent] = true
default_run_options[:pty] = true

# If you are using Passenger mod_rails uncomment this:
namespace :deploy do
  task :start do ; end
  task :stop do ; end
  task :restart, :roles => :app, :except => { :no_release => true } do
    run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
  end
end

# skip precompile css & js if they dont changed since last release.
namespace :deploy do
  namespace :assets do
    task :precompile, :roles => :web, :except => { :no_release => true } do
      from = source.next_revision(current_revision)
      if capture("cd #{latest_release} && #{source.local.log(from)} vendor/assets/ app/assets/ | wc -l").to_i > 0
        run %Q{cd #{latest_release} && #{rake} RAILS_ENV=#{rails_env} #{asset_env} assets:precompile}
      else
        logger.info "*" * 69
        logger.info " "
        logger.info "Skipping asset pre-compilation because there were no asset changes"
        logger.info " "
        logger.info "*" * 69
      end
    end
  end
end

namespace :db do
  desc 'Seed database.'
  task :seed_fu, :roles => :app do
    run "cd #{release_path} && .bin/rake db:seed_fu RAILS_ENV=#{stage}"
  end
end

# hooks
after "deploy:update", "db:seed_fu"


# whenever
set :whenever_command, "bundle exec whenever"
require "whenever/capistrano"

Gemfile

group :development do
  gem 'capistrano'
  gem 'capistrano-ext'
  gem 'capistrano-gitflow'
  gem 'capistrano_colors'
end

production.rb

# /config/deploy/production.rb

set :rvm_type, :user
set(:port, 30000)
set :application, "demo.filmotus.com"
server application, :app, :web, :db, :primary=>true
set(:user, "programmer")
set :deploy_to, "/home/#{user}/public_html/#{application}"
set(:rails_env, "production")

set :branch do
  puts `git for-each-ref --sort='*authordate' --format='%(refname:short)' refs/tags | tail -n 13`
  Capistrano::CLI.ui.ask "Tag to deploy (make sure to push the tag first): "
end

staging.rb

# /config/deploy/staging.rb

set :rvm_type, :user
set(:port, 30002)
set :application, "fo.pracstrat.com"
server application, :app, :web, :db, :primary=>true
set(:user, "programmer")
set :deploy_to, "/home/#{user}/public_html/#{application}"
set(:rails_env, "staging")
require 'capistrano/gitflow'