deploy.rb

set :stages, %w(staging production)
set :default_stage, 'staging'
require 'capistrano/ext/multistage'

# repository elsewhere
set :scm, :git
set :repository, "[email protected]:Repositories/wavetronix.git"
set :ssh_options, { :forward_agent => true }
set :deploy_via, :remote_cache

namespace :deploy do
  task :default do
    set(:branch) do
      br = Capistrano::CLI.ui.ask "What branch do you want to deploy?: ".downcase
      raise 'Cannot deploy master branch to production.' if (stage.upcase == 'PRODUCTION') && br == 'master'
      br
    end
    puts "*** Deploying to the #{stage.upcase} server!"
    update
    restart
    
    # Clean up old deployments
    deploy.cleanup
    
    # Send deployment notification except, for the default stage
  end
  
  # override migrations task to inject branch
  desc <<-DESC
  Deploy and run pending migrations. This will work similarly to the \
  'deploy' task, but will also run any pending migrations (via the \
  'deploy:migrate' task) prior to updating the symlink. Note that the \
  update in this case it is not atomic, and transactions are not used, \
  because migrations are not guaranteed to be reversible.
  DESC
  task :migrations do
    set :migrate_target, :latest
    set(:branch) do
      br = Capistrano::CLI.ui.ask 'What branch do you want to deploy?: '.downcase
      raise 'Cannot deploy master branch to production.' if (stage.upcase == 'PRODUCTION') && br == 'master'
      br
    end
    puts "*** Deploying to the #{stage.upcase} server!"
    update_code
    migrate
    symlink
    restart

    # cleanup old deployments
    deploy.cleanup

    # Send deployment notification, except for the default stage
  end
  
  desc "Create symlink to shared files and folders on each release."
  task :symlink_shared do
    run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
    run "ln -nfs #{shared_path}/assets #{release_path}/public/assets"
  end
  
  desc "Sync the public/assets directory."
  task :assets do
    system "rsync -vr --exclude='.DS_Store' public/assets #{user}@#{domain}:#{shared_path}/"
  end
  
  after "deploy:update_code", "deploy:symlink_shared"
end

gistfile2.txt

fiona:wavetronix aporter$ cap deploy
    triggering start callbacks for `deploy'
  * executing `multistage:ensure'
*** Defaulting to `staging'
  * executing `staging'
  * executing `deploy'
./config/deploy.rb:18:in `load': undefined method `upcase' for :staging:Symbol (NoMethodError)
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/configuration/execution.rb:139:in `instance_eval'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/configuration/execution.rb:139:in `invoke_task_directly_without_callbacks'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/configuration/callbacks.rb:27:in `invoke_task_directly'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/configuration/execution.rb:89:in `execute_task'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/configuration/execution.rb:101:in `find_and_execute_task'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/cli/execute.rb:45:in `execute_requested_actions_without_help'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/cli/execute.rb:44:in `each'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/cli/execute.rb:44:in `execute_requested_actions_without_help'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/cli/help.rb:19:in `execute_requested_actions'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/cli/execute.rb:33:in `execute!'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/lib/capistrano/cli/execute.rb:14:in `execute'
	from /Library/Ruby/Gems/1.8/gems/capistrano-2.5.8/bin/cap:4
	from /usr/bin/cap:19:in `load'
	from /usr/bin/cap:19
fiona:wavetronix aporter$