deploy.rb

namespace :vlad do

  desc "installs Bundler if it is not already installed"
  remote_task :install_bundler do
    run "sh -c 'if [ -z `which bundle` ]; then echo Installing Bundler; sudo gem install bundler; fi'"
  end

  desc "symlink bundle directory and write config"
  remote_task :setup_bundler do
    run "ln -s #{shared_path}/bundle #{latest_release}/bundle"
    run "mkdir -p #{latest_release}/.bundle"
    run "cp #{shared_path}/bundle_config #{latest_release}/.bundle/config"
    run "cp #{shared_path}/Gemfile.lock #{latest_release}/Gemfile.lock"
  end 

  desc "run 'bundle install' to install Bundler's packaged gems for the current deploy and cache the config and lock files for the next releases"
  remote_task :bundle_install  do
    run "cd #{latest_release} && bundle install #{shared_path}/bundle --without development test"
    run "cp #{latest_release}/bundle_config #{shared_path}/.bundle/config"    
    run "cp #{latest_release}/Gemfile.lock #{shared_path}/Gemfile.lock"
  end

end

task :quick_deploy => [ "vlad:update",
                        "vlad:setup_bundler",
                        "vlad:start_app" ]

task :deploy => [ "vlad:update",
                  "vlad:setup_bundler",
                  "vlad:install_bundler",
                  "vlad:bundle_install",
                  "vlad:start_app",
                  "vlad:cleanup" ]