What is Rubocop

A tool that statically analyzes whether or not it complies with Ruby's coding standards. It parses all the code written in the .rb file and outputs the indent, method name, etc. to the terminal.

Since it is only an rb file, .erb will not be analyzed.

Introduction method

Add the following to the Gemfile.

gem 'rubocop', require: false

Installation

$ bundle install

how to use

https://docs.rubocop.org/rubocop/1.7/usage/basic_usage.html

command

$ rubocop
#Analyze and output the result to the terminal

$ rubocop -a
 #or
$ rubocop --auto-correct
#Analyze and automatically correct

Configuration

Describe the settings in .rubocop.yml. (My settings)

`.rubocop.yml`


AllCops:
inherit_from: .rubocop_todo.yml
AllCops:
  Exclude:
    - bin/*
    - config/**/*
    - db/schema.rb
    - vendor/**/*
    - Gemfile
  NewCops: enable
Style/Documentation:
  Enabled: false
Style/EmptyMethod:
  Enabled: false
Style/FrozenStringLiteralComment:
  Enabled: false

[RUBY] [Rails] Gem Rubocop Static code analysis tool