Capistrano recipes

recipes.rb

#############################################################
# Capistrano recipes
#############################################################
task :uname do
  run "uname -a"
end

# Usage: wait_for_process_to_end('delayed_job')
#
def wait_for_process_to_end(process_name)
  run "COUNT=1; until [ $COUNT -eq 0 ]; do COUNT=`ps -ef | grep -v 'ps -ef' | grep -v 'grep' | grep -i '#{process_name}'|wc -l` ; echo 'waiting for #{process_name} to end' ; sleep 2 ; done"
end

namespace :db do
  desc 'Dumps the production database to db/production_data.sql on the remote server'
  task :remote_db_dump, :roles => :db, :only => { :primary => true } do
    run "cd #{deploy_to}/#{current_dir} && " +
      "rake RAILS_ENV=#{rails_env} db:database_dump --trace"
  end

  desc 'Downloads db/production_data.sql from the remote production environment to your local machine'
  task :remote_db_download, :roles => :db, :only => { :primary => true } do
    execute_on_servers(options) do |servers|
      self.sessions[servers.first].sftp.connect do |tsftp|
        tsftp.download!("#{deploy_to}/#{current_dir}/db/production_data.sql", "db/production_data.sql")
      end
    end
  end
end

namespace :log do
  desc 'Download production.log from remote production environment'
  task :download do
    logfile = "production.log"
    execute_on_servers(options) do |servers|
      self.sessions[servers.first].sftp.connect do |tsftp|
        tsftp.download!("#{deploy_to}/#{current_dir}/log/#{logfile}", "log/#{logfile}")
      end
    end
  end
end