_rake

#compdef _rake rake

_rake_does_task_list_need_generating () {
  if [[ ! -f .rake_tasks ]]; then return 0;
  else
    return $([[ Rakefile -nt .rake_tasks ]])
  fi
}

_rake () {
  if [[ -f Rakefile ]]; then
    if _rake_does_task_list_need_generating; then
      echo "\nGenerating .rake_tasks..." >&2
      rake --silent --tasks | cut -d " " -f 2 | sed 's/\[.*\]//g' >| .rake_tasks
    fi
    compadd $(<.rake_tasks)
  fi
}