Rakeタスクをインタラクティブに選択できるfish function

raket.fish

function raket
  if test -f Gemfile -o -f .bundle/
    set task (bundle exec rake -T | peco | cut -d " " -f 2)
    if [ -n "$task" ]
      bundle exec rake $task
    else
      echo "Task execution was interrupted."
    end
  else
    echo "[ERROR]: $pwd maybe not Rails directory."
  end
end