## Rakefile

require File.join(File.dirname(__FILE__), 'lib')

@deploy_to = '/home/igc/repo'
@servers = [{ :host => '69.56.251.135', :user => 'root', :pass => 'eocewreito'}]
@mongrel_cluster_path = '/home/igc/cluster.yml'

namespace :igc do
  task :deploy => [:update, :restart]

  task :update => [:update_code, :database_yml_rename]

  task :update_code do
    run "cd #{@deploy_to}; git pull;"
  end

  task :restart do
    run "mongrel_rails cluster::restart -C #{@mongrel_cluster_path} --clean"
  end

  task :submodules do
    run "cd #{@deploy_to}; git submodule init; git submodule update;"
  end

  task :database_yml_rename do
    run "cp -f #{@deploy_to}/rails/config/database.yml.server #{@deploy_to}/rails/config/database.yml"
  end
end

## lib.rb

require 'net/ssh'

def run(cmd)
  @servers.each do |server|
    Net::SSH.start(server[:host], server[:user], :password => server[:pass]) do |ssh|
        channel = ssh.open_channel do |ch|
        puts "execute `#{cmd}`"
        ch.exec cmd do |ch, success|
          raise "could not execute command" unless success

          # "on_data" is called when the process writes something to stdout
          ch.on_data do |c, data|
            puts data
          end

          # "on_extended_data" is called when the process writes something to stderr
          ch.on_extended_data do |c, type, data|
            puts data
          end

          ch.on_close { puts "iGC cmd done!" }
        end
      end

      channel.wait
    end
  end
end