rubocopに必須のセットアップは、特にないです。ただ、 .rubocop.yml は必須です。もし、迷うなら、 railsの .rubocop.yml をコピペ or 参考に作るといいです。 なお、自分のは以下の通りです。 AllCops: Exclude: - "tmp/**/*" - "config/initializers/*" - "vendor/**/*" - "db/schema.rb" - "node_modules/**/*" - "db/migrate/*.rb" - "bin/*" DisplayCopNames: true TargetRubyVersion: 2.6.0 Rails: Enabled: true Style/AndOr: EnforcedStyle: conditionals Style/AsciiComments: Enabled: false
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