Use \ instead of + to concatenate strings split across multiple lines
Add space after #
Fix def...end alignment
Put space between the method name and the first argument
Favor modifier until usage when having a single-line body
Never use then for multi-line unless
Remove unnecessary preinitializer
Never use unless with else
Use each_with_object instead of inject
Remove useless private access modifier
Remove space between first argument and parenthesis
Use self-assignment shorthand +=
Parenthesize ambiguous method arguments
Prefer *_action over *_filter
Use proc over Proc.new
Exclude infrastructure submodule from RuboCop
Exclude vendored code from RuboCop