.rubocop.yml

# Extends defaults from: https://github.com/rubocop-hq/rubocop/blob/master/config/default.yml

require:
  - rubocop-performance
  - rubocop-rails
  - rubocop-rspec

AllCops:
  TargetRubyVersion: 2.5
  Exclude:
  - "vendor/**/*"
  - "db/schema.rb"
  - "bin"
  - "coverage"
  - "doc"
  - "engines"
  - "lib/assets"
  - "lib/build"
  - "log"
  - "node_modules"
  - "public"
  - "script"
  - "tmp"
  - "vendor"
  NewCops: disable

####################
#  Layout
####################

Layout/LineLength:
  Description: Checks that line length does not exceed the configured limit.
  Max: 120

Layout/EmptyLinesAroundClassBody:
  Description: Keeps track of empty lines around class bodies.
  EnforcedStyle: empty_lines_except_namespace

Layout/EmptyLinesAroundModuleBody:
  Description: Keeps track of empty lines around module bodies.
  EnforcedStyle: empty_lines_except_namespace

####################
#  Metrics
####################

Metrics/AbcSize:
  Description: >-
                 A calculated magnitude based on number of assignments,
                 branches, and conditions.
  Max: 35

Metrics/BlockLength:
  Description: Avoid long blocks with many lines.
  Max: 50
  Exclude:
    - '**/*.gemspec'
    - spec/**/*_spec.rb
    - lib/tasks/**/*.rake

Metrics/ClassLength:
  Description: Avoid classes longer than 400 lines of code.
  Max: 400

Metrics/CyclomaticComplexity:
  Description: >-
                  A complexity metric that is strongly correlated to the number
                  of test cases needed to validate a method.
  Max: 15

Metrics/MethodLength:
  Description: Avoid methods longer than 100 lines of code.
  Max: 100

Metrics/ModuleLength:
  Description: Avoid modules longer than 400 lines of code.
  Max: 400

Metrics/PerceivedComplexity:
  Description: >-
                  A complexity metric geared towards measuring complexity for a
                  human reader.
  Max: 15

####################
#  Naming
####################

Naming/PredicateName:
  ForbiddenPrefixes:
    - is_
    - have_

Naming/VariableNumber:
  Description: Use the configured style when numbering variables.
  Enabled: false

####################
#  RSpec
####################

RSpec/AnyInstance:
  Enabled: false

RSpec/ExampleLength:
  Max: 50

# Incompatible until RSpec 3
RSpec/ImplicitExpect:
  Enabled: false

RSpec/MessageSpies:
  Enabled: false

RSpec/MultipleExpectations:
  Max: 10

RSpec/MultipleMemoizedHelpers:
  Max: 15

RSpec/NestedGroups:
  Max: 5

RSpec/StubbedMock:
  Enabled: false

RSpec/SubjectStub:
  Enabled: false

####################
#  Style
####################

Style/PercentLiteralDelimiters:
  Description: Use `%`-literal delimiters consistently.
  Enabled: false

Style/StringLiterals:
  Description: Checks if uses of quotes match the configured preference.
  EnforcedStyle: single_quotes

Style/Documentation:
  Description: Document classes and non-namespace modules.
  Enabled: false

Style/DoubleNegation:
  Description: Checks for uses of double negation (!!).
  Enabled: false

Style/FrozenStringLiteralComment:
  Description: >-
                  Add the frozen_string_literal comment to the top of files
                  to help transition to frozen string literals by default.
  Enabled: false

Style/GlobalVars:
  # These variables were already defined when we set up the linter, so allow them for the time being
  AllowedVariables:
    - $api_credentials
    - $geocoder_metrics
    - $limits_metadata
    - $redis_migrator_logs
    - $tables_metadata
    - $tables_metadata_secondary
    - $users_metadata
    - $users_metadata_secondary

Style/GuardClause:
  Enabled: false

Style/SymbolArray:
  Description: Use %i or %I for arrays of symbols.
  Enabled: false

Style/WordArray:
  Description: Use %w or %W for arrays of words.
  Enabled: false


####################
#  Rails
####################

Rails/CreateTableWithTimestamps:
  Description: Create new tables with created_at and updated_at timestamps
  Enabled: false

Rails/UnknownEnv:
  Environments:
    - development
    - production
    - staging
    - test