Bundler integration for Capistrano

bundler_cap.rb

namespace :bundler do
  task :install, :roles => :app, :except => { :no_release => true }  do
    run("gem install bundler --source=http://rubygems.org")
  end

  task :create_symlink, :roles => :app do
    shared_dir = File.join(shared_path, 'bundle')
    release_dir = File.join(current_release, '.bundle')
    run("mkdir -p #{shared_dir} && ln -fs #{shared_dir} #{release_dir}")
  end
  
  task :bundle_new_release, :roles => :app do
    bundler.create_symlink
    run "cd #{release_path} && bundle install --without test"
  end
  
  task :lock, :roles => :app do
    run "cd #{current_release} && bundle lock;"
  end
  
  task :unlock, :roles => :app do
    run "cd #{current_release} && bundle unlock;"
  end
end

after "deploy:setup", "bundler:install"
after  "deploy:update_code", "bundler:bundle_new_release"