Replace rubocop configuration to comply with latest version of the gem

README.md

@@ -266,12 +266,24 @@ Default whitelist is:
 
 Best solution would be integrating check script to dev pipeline's CI/CD.
 
+# Rubocop
+
+Rubocop is a linter for ruby. It can be extended for Ruby on Rails using the gem rubocop-rails. Add the following lines in your Gemfile to begin using Rubocop.
+
+```ruby
+group :development do
+  gem 'rubocop', '~> 0.79.0'
+  gem 'rubocop-rails', '~> 2.4', '>= 2.4.2'
+end
+```
+
+A configuration file compliant with those versions can be found in the `config_files` directory.
+
 # To-dos
 
 List here all the section and stuff you would like or wish someone could to talk about in a next PR
 
 * moduloTech gem
-* Rubocop and rubocop-rails
 * CI/CD
   * use [Licensed](https://github.com/github/licensed) script to check new/updated dependencies' licenses
   * use rubocop as part of CI pipeline
@@ -282,6 +294,7 @@ List here all the section and stuff you would like or wish someone could to talk
 
 # Changes
 * ...
+* ciappa_m - Add section about Rubocop
 * philib_j - Added information about r.sh
 * varaby_m - Add section about dependencies' licenses
 * ciappa_m - Add a section about commit messages

config_files/.rubocop.yml

@@ -1,6 +1,9 @@
-require: 'rubocop-rails'
+# Enabling Rails-specific cops
+require: rubocop-rails
 
 AllCops:
+
+  # Excluding most directories with generated files and directories with configuration files
   Exclude:
     - 'vendor/**/*'
     - 'db/*'
@@ -20,9 +23,7 @@ AllCops:
     - 'spec/spec_helper.rb'
     - 'node_modules/**/*'
 
-Rails:
-  Enabled: true
-
+# Instructing rubocop about all non-standard environments
 Rails/UnknownEnv:
   Environments:
     - production
@@ -31,7 +32,7 @@ Rails/UnknownEnv:
     - staging
 
 # Commonly used screens these days easily fit more than 80 characters.
-Metrics/LineLength:
+Layout/LineLength:
   Max: 100
   Exclude:
     - 'config/*'
@@ -55,7 +56,7 @@ Style/SymbolArray:
   Enabled: true
 
 # Most readable form.
-Layout/AlignHash:
+Layout/HashAlignment:
   EnforcedHashRocketStyle: table
   EnforcedColonStyle: table
 
@@ -71,6 +72,10 @@ Style/PreferredHashMethods:
 Style/FormatString:
   EnforcedStyle: percent
 
+# Annotated or template are too verbose and rarely needed.
+Style/FormatStringToken:
+  EnforcedStyle: unannotated
+
 Style/CollectionMethods:
   Enabled: true
   PreferredMethods:
@@ -104,7 +109,7 @@ Style/SignalException:
 # Suppressing exceptions can be perfectly fine, and be it to avoid to
 # explicitly type nil into the rescue since that's what you want to return,
 # or suppressing LoadError for optional dependencies
-Lint/HandleExceptions:
+Lint/SuppressedException:
   Enabled: false
 
 # { ... } for multi-line blocks is okay, follow Weirichs rule instead:
@@ -212,3 +217,7 @@ Style/PercentLiteralDelimiters:
 Rails/Output:
   Exclude:
     - 'config/deploy.rb'
+
+# It brings pain for no real benefits
+Metrics/ModuleLength:
+  Enabled: false