RuboCop

Formatting Ruby code can be a point of contention because the language is so flexible, but it

All new applications using Rails 7.2 will have rubocop gem by default.

By now probably most Rubists have heard of Prism (formerly know as YARP), the modern and (very) fast Ruby parser that's aiming to replace all the existing Ruby parsers out there. Including RuboCop's

Rails 8 will ship with a default Rubocop linter for the first time. The styles will come from this omakase menu. Substitutions will be easily achieved (and even encouraged). Find the Ruby flavor that tickles your fancy! https://t.co/4UW0Eberpl

Let's dive into what RuboCop is, how it helps developers, how to use it, and some key practical use cases.

Hide refactoring commits in git-blame by using .git-blame-ignore-revs

Solving a problem is great - but keeping it from coming back is even better. As we resolve issues in our code base, we often consider how to keep that classification of issue out of the code base entirely. Sometimes we reach for RuboCop to help us

The slide of my talk in RubyKaigi 2022.https://rubykaigi.org/2022/presentations/nay3.html#day3

The visitor design pattern separates the operation to be performed from the object structure. We look at a concrete implementation in Rubocop, a Ruby linting and formatting library.

RuboCop's motto has always been