Render After Effects diagrams from a Rakefile

Rakefile

namespace :ae do

  desc "Render After Effects Titles and Diagrams"
  task :render do
    mkdir_p "artwork/after_effects_rendered"
    Dir['artwork/after_effects/[0-9]*.aep'].each do |aep_project_name|
      aep_project_name = File.expand_path(aep_project_name)
      mov_output_name  = aep_project_name.gsub(/\.aep/, '.mov').gsub(/artwork\/after_effects/, 'artwork/after_effects_rendered')
      command = ["'/Applications/Adobe After Effects CS4/aerender'",
                 "-reuse",                                        # Launch one instance of AE, or use existing. Faster.
                 %(-project "#{aep_project_name}"),
                 %(-comp "Comp 1"),
                 %(-RStemplate "Best Settings"),                  # Render template
                 %(-OMtemplate "Lossless with Alpha (Straight)"), # Output template
                 "-mp",                                           # Use multicore
                 "-v ERRORS",
                 "-close DO_NOT_SAVE_CHANGES",
                 "-sound ON",
                 %(-output "#{mov_output_name}")]
      system(command.join(' '))
      
      rm_rf aep_project_name + " Logs"
    end
  end

end