Add reek analyzer and set-up default Rake task.

Rakefile

@@ -1,7 +1,17 @@
 # frozen_string_literal: true
 require "bundler/gem_tasks"
+require "reek/rake/task"
+require "rubocop/rake_task"
 require "rspec/core/rake_task"
 
+Reek::Rake::Task.new do |t|
+  t.fail_on_error = false
+end
+
+RuboCop::RakeTask.new do |t|
+  t.fail_on_error = false
+end
+
 RSpec::Core::RakeTask.new(:spec)
 
 desc "Generates default actions modules from API spec YAML file."
@@ -16,4 +26,4 @@ task :generate_default_api_modules do
   end
 end
 
-task default: :spec
+task default: %i[reek rubocop spec]

config.reek

@@ -0,0 +1,20 @@
+---
+
+IrresponsibleModule:
+  enabled: false
+
+NestedIterators:
+ max_allowed_nesting: 2
+
+TooManyStatements:
+  max_statements: 10
+
+UtilityFunction:
+  public_methods_only: true
+
+# Don't complain about undocumented default actions
+"lib/lunanode/api_actions/default":
+  DataClump:
+    enabled: false
+  LongParameterList:
+    enabled: false

lunanode.gemspec

@@ -29,5 +29,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "yard", "~> 0.9"
   spec.add_development_dependency "pry", "~> 0.10"
+  spec.add_development_dependency "reek", "~> 4.5"
   spec.add_development_dependency "rubocop", "~> 0.47"
 end