feat(lib): Add rubocop and reek

Rubocop has an inheritance system to share rubocop config with a gem.
See: https://blog.percy.io/share-rubocop-rules-across-all-of-your-repos-f3281fbd71f8

Reek does not have identical system. We are waiting for: troessner/reek#1430

Code Climate can use config from a gem: https://codeclimate.com/changelog/582495c32c33066f1b00191d/

README.md

@@ -1,2 +1,43 @@
-# code_climate_config
-Config for all style, linting, quality, and security static analysis tools
+# code_climate_ruby
+
+JobTeaser shared configuration for ruby style, linting, quality, and security static analysis tools.
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```
+group :test, :development do
+  gem 'code_climate_ruby', git: 'https://github.com/jobteaser/code_climate_ruby', branch: :master
+end
+```
+
+Or, for a Ruby library, add this to your gemspec:
+
+```
+spec.add_development_dependency 'code_climate_ruby'
+```
+
+And then run:
+
+```
+$ bundle install
+```
+
+## Rubocop usage
+
+Create a `.rubocop.yml` with the following directives:
+
+```
+inherit_gem:
+  code_climate_ruby:
+    - default.yml
+```
+
+Now, run:
+
+```
+$ bundle exec rubocop
+```
+
+You do not need to include rubocop directly in your application's dependencies. Code Climate Ruby will include a specific version of rubocop that is shared across all projects.

code_climate_config.gemspec

@@ -0,0 +1,19 @@
+Gem::Specification.new do |s|
+  s.name = 'code_climate_ruby'
+  s.version = '0.0.0'
+  s.authors = ['The jobteaser team']
+  s.email = "dev@jobteaser.com"
+  s.homepage = 'http://github.com/jobteaser/code_climate_ruby'
+  s.date = '2018-10-19'
+  s.summary = 'Share config for Code Climate'
+  s.description = "This gem contains all config file shared between our ruby projects for Code Climate"
+
+  s.files = %w(
+    lib/rubocop/default.yml
+    lib/reek/default.yml
+  )
+  s.require_paths = %w(lib)
+
+  s.add_development_dependency 'rubocop', '>= 0.58.1'
+  s.add_development_dependency 'reek', '>= 5.0.2'
+end

lib/reek/default.yml

@@ -0,0 +1,146 @@
+---
+# https://github.com/troessner/reek/tree/v5.0.2/docs
+# https://github.com/troessner/reek/blob/v5.0.2/docs/defaults.reek.yml
+detectors:
+  # Depending on the case, it could be fine to have accessible state outside of the class.
+  Attribute:
+    enabled: false
+    exclude: []
+  BooleanParameter:
+    enabled: true
+    exclude: []
+  # Use class level instance variable instead of class variable
+  #   when the value should not be shared with subclasses.
+  # When the value should be shared with subclasses or no subclasses exist,
+  #   class variable is fine and easier to use and understand.
+  ClassVariable:
+    enabled: false
+    exclude: []
+  ControlParameter:
+    enabled: true
+    exclude: []
+  DataClump:
+    enabled: true
+    exclude: []
+    max_copies: 2
+    min_clump_size: 2
+  DuplicateMethodCall:
+    enabled: false
+    exclude: []
+    max_calls: 1
+    allow_calls: []
+  FeatureEnvy:
+    enabled: true
+    exclude: []
+  InstanceVariableAssumption:
+    enabled: false
+    exclude: []
+  # Already catch by rubocop.
+  IrresponsibleModule:
+    enabled: false
+    exclude: []
+  # Already catch by rubocop.
+  LongParameterList:
+    enabled: false
+    exclude: []
+    max_params: 3
+    overrides:
+      initialize:
+        max_params: 5
+  # Already catch by rubocop.
+  LongYieldList:
+    enabled: false
+    exclude: []
+    max_params: 3
+  ManualDispatch:
+    enabled: true
+    exclude: []
+  MissingSafeMethod:
+    enabled: true
+    exclude: []
+  ModuleInitialize:
+    enabled: true
+    exclude: []
+  NestedIterators:
+    enabled: true
+    exclude: []
+    max_allowed_nesting: 1
+    ignore_iterators:
+    - tap
+  # Too much use today and not only for SimulatedPolymorphism.
+  # We should start to always implement nil pattern before to enable this check.
+  NilCheck:
+    enabled: false
+    exclude: []
+  RepeatedConditional:
+    enabled: true
+    exclude: []
+    max_ifs: 2
+  SubclassedFromCoreClass:
+    enabled: true
+    exclude: []
+  # Already catch by rubocop.
+  TooManyConstants:
+    enabled: false
+    exclude: []
+    max_constants: 5
+  TooManyInstanceVariables:
+    enabled: false
+    exclude: []
+    max_instance_variables: 4
+  # Already catch by rubocop.
+  TooManyMethods:
+    enabled: false
+    exclude: []
+    max_methods: 15
+  # Already catch by rubocop.
+  TooManyStatements:
+    enabled: false
+    exclude:
+    - initialize
+    max_statements: 5
+  UncommunicativeMethodName:
+    enabled: true
+    exclude: []
+    reject:
+    - "/^[a-z]$/"
+    - "/[0-9]$/"
+    - "/[A-Z]/"
+    accept: []
+  UncommunicativeModuleName:
+    enabled: true
+    exclude: []
+    reject:
+    - "/^.$/"
+    - "/[0-9]$/"
+    accept:
+    - "/V[0-9]$/"
+  UncommunicativeParameterName:
+    enabled: true
+    exclude: []
+    reject:
+    - "/^.$/"
+    - "/[0-9]$/"
+    - "/[A-Z]/"
+    - "/^_/"
+    accept: []
+  UncommunicativeVariableName:
+    enabled: true
+    exclude: []
+    reject:
+    - "/^.$/"
+    - "/[0-9]$/"
+    - "/[A-Z]/"
+    accept:
+    - "/^_$/"
+  # Already catch by rubocop.
+  UnusedParameters:
+    enabled: false
+    exclude: []
+  UnusedPrivateMethod:
+    enabled: false
+    exclude: []
+  UtilityFunction:
+    enabled: true
+    exclude: []
+    public_methods_only: false

lib/rubocop/default.yml

@@ -0,0 +1,129 @@
+# List of all cops and their description/default values is available here:
+#   https://github.com/bbatsov/rubocop/blob/master/manual/cops.md
+
+AllCops:
+  TargetRubyVersion: 2.3
+
+# ==================================== Department Bundler ==========================================
+
+Bundler/OrderedGems:
+  Enabled: false
+
+# ===================================== Department Layout ==========================================
+
+Layout/AlignParameters:
+  EnforcedStyle: with_fixed_indentation
+
+Layout/DotPosition:
+  EnforcedStyle: trailing
+
+Layout/EmptyLinesAroundClassBody:
+  EnforcedStyle: empty_lines
+  SupportedStyles:
+    - empty_lines
+    - no_empty_lines
+
+Layout/EmptyLinesAroundModuleBody:
+  EnforcedStyle: no_empty_lines
+  SupportedStyles:
+    - empty_lines
+    - no_empty_lines
+
+Layout/EmptyLinesAroundBlockBody:
+  Description: "Keeps track of empty lines around block bodies."
+  Enabled: false
+
+Layout/EmptyLines:
+  Description: "Don't use several empty lines in a row."
+  Enabled: true
+
+Layout/EndOfLine:
+  Description: 'Use Unix-style line endings.'
+  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#crlf'
+  Enabled: true
+
+Layout/ExtraSpacing:
+  # When true, allows most uses of extra spacing if the intent is to align
+  # things with the previous or next line, not counting empty lines or comment
+  # lines.
+  AllowForAlignment: true
+
+Layout/MultilineOperationIndentation:
+  EnforcedStyle: indented
+
+Layout/MultilineMethodCallIndentation:
+  EnforcedStyle: indented
+
+# ==================================== Department Metrics ==========================================
+
+Metrics/AbcSize:
+  Max: 15 # Default is 15
+
+Metrics/ClassLength:
+  Max: 100 # Default is 100
+
+Metrics/LineLength:
+  Max: 100 # Default is 80
+  Exclude:
+    - config/schedule.rb
+
+Metrics/MethodLength:
+  Max: 10 # Default is 10
+
+Metrics/ModuleLength:
+  Max: 100 # Default is 100
+
+Metrics/ParameterLists:
+  Max: 5 # Default is 5
+
+Metrics/BlockLength:
+  Exclude:
+    - spec/**/*.rb
+    - config/routes.rb
+    - config/initializers/secure_headers.rb
+
+# ===================================== Department Style ===========================================
+
+Style/Alias:
+  Description: 'Advise the use of alias_method over the alias keyword whenever possible.'
+  Enabled: true
+
+Style/CollectionMethods:
+  Enabled: false
+
+Style/FrozenStringLiteralComment:
+  Enabled: false
+
+Style/GlobalVars:
+  Description: 'Do not introduce global variables.'
+  StyleGuide: '#instance-vars'
+  Reference: 'http://www.zenspider.com/Languages/Ruby/QuickRef.html'
+  AllowedVariables:
+    - $redis
+    - $redis_cache
+    - $redis_rollout
+  Enabled: true
+
+Style/PercentLiteralDelimiters:
+  # Specify the default preferred delimiter for all types with the 'default' key
+  # Override individual delimiters (even with default specified) by specifying
+  # an individual key
+  PreferredDelimiters:
+    default: ()
+    '%i': '()'
+    '%I': '()'
+    '%r': '{}'
+    '%w': '()'
+    '%W': '()'
+
+Style/SignalException:
+  Description: 'This cop checks for uses of fail and raise.'
+  EnforcedStyle: only_raise
+
+Style/StringLiterals:
+  EnforcedStyle: single_quotes
+
+Style/WordArray:
+  Description: 'Use %w or %W for arrays of words.'
+  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-w'
+  Enabled: false