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第十三回講義メモ

Last updated at Posted at 2020-12-31

!Mac OS X-10.15.7 !ruby-2.6.3p62

thor

いくつかの振る舞いを一つのコマンドに持たそうとすると,オプションなどを適切に扱う必要が出てくる.そのためにいくつかのCLI builder gemsがある.これはRakefileに似たDSLで実現できる.

まずは,

gem install thor

次に以前作ったhello_rubyにcliのinterfaceを組み込む.

require 'thor'
require "hello_rudy/version"

class HelloRudyCLI < Thor
  desc "hello NAME", "say hello to NAME"
  def hello(name)
    puts "Hello " + name
  end
end

HelloRudyCLI.start(ARGV)

CLIという文字列がclass名の最後にないと動かない.

rubocop紹介

これはcode formatterとかlinterと呼ばれる類のツールらしく, 規約通りにコードが書かれているかをチェックしてくれる便利ツール.

gem install rubocop
rubocop --auto-correct fibonacci.rb

参考サイト

https://qiita.com/daddygongon/items/19e58f757fab197bc347


  • source ~/my_ruby/grad_members_20f/members/drop-sd/lectures/no13.org
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