あなたの知らないRuboCopの設定

original: https://vividmuimui.github.io/slides/rubocop_sekai/slides/

1. RuboCop RuboCop 2019/04/03 LT @vividmuimui 1
2. RuboCop RuboCop RuboCop RuboCop 2
3. cop (inherit) 3 : URL inherit : inherit_mode : 3
4. : URL inherit : URL inherit 4
5. inherit( ) inherit( ) RuboCop inhert_from .rubocop_todo.yml inherit_gem Gem onkcop , meowcop inherit_from: .rubocop_todo.yml inherit_gem: onkcop: - "config/rubocop.yml" - "config/rails.yml" 5
6. inherit_from inherit_from URL URL GitHub https://raw.githubusercontent.com/xxx Ruby Gem inherit_from: - http://www.example.com/rubocop.yml 6
7. : inherit_mode : inherit_mode 7
8. 1 1 ( : .rubocop.yml ) ( : .rubocop_todo.yml ) # .rubocop_todo.yml Style/CollectionMethods: PreferredMethods: collect: map # .rubocop.yml inherit_from: '.rubocop_todo.yml' Style/CollectionMethods: PreferredMethods: collect: collect # こっちの設定が有効 8
9. 2 2 RuboCop Hash Array Hash Merge Array Override Array Override Merge Yaml Array Hash ~ (Yaml null) Style/CollectionMethods: # hashの例 PreferredMethods: collect: map # arrayの例 Exclude: - 'foo/bar.rb' 9
10. inherit_mode inherit_mode inherit_mode Array Override Merge inherit_from: - 'shared.yml' inherit_mode: merge: - Exclude Style/For: inherit_mode: override: - Exclude 10
11. : : 11
12. inherit_from Include/Exclude Cop inherit_from: .rubocop_todo.yml Style/CollectionMethods: Exclude: - 'foo/bar.rb' 12
13. inherit_from inherit_from inherit_from inherit_from .rubocop.yml ../ .rubocop_todo.yml # .rubocop.yml inherit_from: '../.rubocop_todo.yml' 13
14. Include/Exclude Include/Exclude Style/CollectionMethods: Exclude: - 'foo/bar.rb' 14
16. Include/Exclude Include/Exclude 16
17. Include/Exclude Include/Exclude .rubocop .rubocop.yml .rubocop_todo.yml rubocop .my_rubocop_config.yml rubocop.yml ( ) 17
18. rubocop . ├── config │ ├── .my_rubocop_config.yml │ ├── .rubocop_todo.yml │ └── .rubocop.yml └── src └── sample.rb # .rubocop.yml inherit_from: - .my_rubocop_config.yml - .rubocop_todo.yml $ rubocop -c config/.rubocop.yml 18
19. . ├── config │ ├── .my_rubocop_config.yml │ ├── .rubocop_todo.yml │ └── .rubocop.yml └── src └── sample.rb # config/.rubocop.yml # config/.rubocop_todo.yml Style/CollectionMethods: Exclude: # .rubocopで始まるので、設定ファイルからの相対 - '../src/sample.rb' # config/.my_rubocop_config.yml Style/CollectionMethods: Exclude: # .rubocopではないので、実行ディレクトリからの相対 - 'src/sample.rb' 19
20. .rubocop.yml tools/rubocop/ ( .rubocop.yml ) 20
21. .rubocop rubocop src rubocop . ├── src │ └── server │ └── test │ └── foo.rb └── tool └── rubocop └── config └── rubocopの設定ファイル $ rubocop -c ../tool/rubocop/config/{rubocopの設定フ
22. ( tools/rubocop/config rubocop ) 21
23. .rubocop .rubocop test Cop .rubocop **/ .rubocop rubocop src src/server # rubocopの設定ファイル Foo/BarCop: Exclude: - '**/test/**/*.rb' 22
25. : URL inherit inherit_from URL : inherit_mode Hash Merge, Array Override inherit_mode Array Merge : inherit_from inherit_from Include/Exclude .rubocop tools/ .rubocop 24