second iteration of rakefile

Rakefile

files = [ 
  :a_file => "/path/to/a_file", 
  :b_file => "/path/to/b_file", 
  :c_file => "/path/to/c_file" 
]
process_tasks = []
files.each |file_name, file_location|
  process_task = "process_#{file_name}".intern
  process_tasks << process_task
  desc "Process #{file_location}"
  task process_task do
    process_file(file_name, file_location)
  end
end

desc "Process all files"
task :process_all_files => process_tasks