Run rake task in console

cake.rb

require 'rake'
#cake == console rake
module Cake
  attr :trace
  attr :alias_tasks
  attr :current_task

  @alias_tasks = {}

  @trace = false

  def trace= t
    @trace = t
  end

  def current_task
    @alias_tasks[@current_task] || @current_task
  end

  def invoke task
    started_at = Time.now
    ActiveRecord::Base.transaction do
      begin
        Rake::Task[task].invoke
      rescue Exception => e
        log ''
        log 'ERROR:'
        log e
        log ''
        log e.backtrace if @trace
        log ''
        log "Abort, cost: #{Time.now - started_at} (s)"
        raise ActiveRecord::Rollback
      end
    end
    finished_at = Time.now
    log "Started at: #{started_at}, End at: #{finished_at}; Cost: #{finished_at - started_at} (s)"
  end

  def refresh task
    Rake::Task[task].reenable
    true
  end

  def run task,aliaz = nil
    @current_task = if aliaz.present?
      @alias_tasks[aliaz] = task
      aliaz
    else
      task
    end

    refresh current_task
    invoke current_task
  end

  def reload
    Rake::Task.clear
    Console::Application.load_tasks
    @current_task = nil
    'Done'
  end

  def log msg
    $stdout.puts msg
  end

  extend self
end