AllCops:
  Exclude:
    - lib/uuid.rb
    - test/syntax-book/*
    - tmp/*
  DisplayCopNames: true
  NewCops: enable

require:
  - rubocop-performance

#### Lint

Lint/EmptyWhen:
  Enabled: true

Lint/NestedMethodDefinition:
  Exclude:
    - 'test/*'

Lint/AssignmentInCondition:
  Enabled: false

Lint/ParenthesesAsGroupedExpression:
  Enabled: true

Lint/UnderscorePrefixedVariableName:
  Enabled: true

Lint/UnusedBlockArgument:
  Enabled: true

Lint/UnusedMethodArgument:
  Enabled: true

Lint/UselessAssignment:
  Enabled: true

Lint/ErbNewArguments:
  Enabled: false

Lint/DeprecatedOpenSSLConstant:
  Enabled: true

Lint/MixedRegexpCaptureTypes:
  Enabled: true

Lint/RaiseException:
  Enabled: true

Lint/StructNewOverride:
  Enabled: true

# make it enable when supporting only Ruby 3.0 and higher.
Lint/RedundantDirGlobSort:
  Enabled: false

#### Performance

Performance/RegexpMatch:
  Enabled: false

Performance/ReverseEach:
  Enabled: true

# Use tr instead of gsub.
Performance/StringReplacement:
  Enabled: true

Performance/RangeInclude:
  Enabled: true

Performance/DeletePrefix:
  Enabled: false

Performance/RedundantMerge:
  Enabled: true

Performance/AncestorsInclude:
  Enabled: true

Performance/BigDecimalWithNumericArgument:
  Enabled: true

Performance/RedundantSortBlock:
  Enabled: true

Performance/RedundantStringChars:
  Enabled: true

Performance/ReverseFirst:
  Enabled: true

Performance/SortReverse:
  Enabled: true

Performance/Squeeze:
  Enabled: true

Performance/StringInclude:
  Enabled: false

Performance/CollectionLiteralInLoop:
  Enabled: false

#### Style

Style/AccessModifierDeclarations:
  Enabled: false

Style/AsciiComments:
  Enabled: false

# Use alias_method instead of alias.
Style/Alias:
  EnforcedStyle: prefer_alias_method
  Enabled: true

Style/AndOr:
  Enabled: true

Style/BarePercentLiterals:
  EnforcedStyle: percent_q
  Enabled: true

Style/BlockDelimiters:
  Enabled: true

Style/CaseEquality:
  Enabled: false

Style/ClassCheck:
  Enabled: true

Style/ClassMethods:
  Enabled: true

Style/CommentedKeyword:
  Enabled: false

Style/DocumentDynamicEvalDefinition:
  Enabled: false

Style/FloatDivision:
  Enabled: false

# Do not introduce global variables.
Style/GlobalVars:
  Enabled: true

# Use self-assignment shorthand +=.
Style/SelfAssignment:
  Enabled: true

Style/ConditionalAssignment:
  Enabled: false

Style/Documentation:
  Enabled: false

Style/Encoding:
  Enabled: true

Style/EmptyElse:
  Enabled: true

Style/EvalWithLocation:
  Enabled: true

Style/FormatString:
  EnforcedStyle: sprintf
  Enabled: true

Style/FormatStringToken:
  Enabled: false

Style/GuardClause:
  Enabled: false

Style/IfInsideElse:
  Enabled: false

Style/IfUnlessModifier:
  Enabled: false

Style/MutableConstant:
  Enabled: false

Style/MultipleComparison:
  Enabled: true

Style/RedundantInterpolation:
  Enabled: true

Style/ZeroLengthPredicate:
  Enabled: false

Style/NumericPredicate:
  EnforcedStyle: comparison
  Enabled: true

Style/TernaryParentheses:
  Enabled: false

Style/FrozenStringLiteralComment:
  EnforcedStyle: never
  Enabled: true

Style/SafeNavigation:
  Enabled: false

Style/EmptyMethod:
  EnforcedStyle: expanded
  Enabled: true

Style/HashSyntax:
  Enabled: true

Style/RescueModifier:
  Enabled: false

Style/ClassAndModuleChildren:
  EnforcedStyle: nested
  Enabled: true

Style/ColonMethodCall:
  Enabled: true

Style/For:
  Enabled: true

Style/InfiniteLoop:
  Enabled: true

Style/LineEndConcatenation:
  Enabled: false

Style/MethodCallWithoutArgsParentheses:
  Enabled: true

Style/MethodCallWithArgsParentheses:
  IgnoredMethods:
    - 'require'
    - 'include'
    - 'file'
    - 'task'
    - 'desc'
    - 'info'
    - 'gem'
    - 'exit'
    - 'print'
    - 'puts'
    - 'write'
    - 'warn'
    - 'error'
    - 'raise'
    - 'yield'
    - 'source'
    - 'assert'
    - 'assert_equal'
    - 'assert_raise'
    - 'assert_raises'
    - 'assert_nothing_raised'
    - 'sh'
    - 'mv'
    - 'rm_rf'
  Enabled: true

Style/MixinUsage:
  Enabled: false

Style/MultilineBlockChain:
  Enabled: true

Style/NegatedIf:
  Enabled: true

Style/Next:
  Enabled: true

Style/Not:
  Enabled: true

Style/NumericLiterals:
  MinDigits: 6

Style/PercentLiteralDelimiters:
  Enabled: true

Style/PercentQLiterals:
  EnforcedStyle: upper_case_q
  Enabled: true

Style/PerlBackrefs:
  Enabled: false

Style/RaiseArgs:
  EnforcedStyle: exploded
  Enabled: true

Style/RedundantBegin:
  Enabled: false

Style/RedundantParentheses:
  Enabled: true

Style/RedundantReturn:
  Enabled: false

Style/RedundantSelf:
  Enabled: false

Style/RegexpLiteral:
  Enabled: true

Style/RescueStandardError:
  Enabled: false

Style/Semicolon:
  Enabled: true

Style/SingleLineMethods:
  Enabled: true

Style/SpecialGlobalVars:
  Enabled: true

Style/StderrPuts:
  Enabled: false

Style/StringLiterals:
  Enabled: true

Style/StringLiteralsInInterpolation:
  Enabled: true

Style/SymbolProc:
  Enabled: true

Style/SymbolArray:
  Enabled: true

Style/TrailingCommaInArrayLiteral:
  Enabled: true

Style/TrailingCommaInHashLiteral:
  Enabled: true

Style/WordArray:
  MinSize: 10

Style/RedundantPercentQ:
  Enabled: false

Style/WhileUntilModifier:
  Enabled: false

Style/YodaCondition:
  Enabled: true

Style/ExponentialNotation:
  Enabled: true

Style/HashEachMethods:
  Enabled: true

Style/HashTransformKeys:
  Enabled: true

Style/HashTransformValues:
  Enabled: true

Style/RedundantFetchBlock:
  Enabled: true

Style/RedundantRegexpCharacterClass:
  Enabled: true

Style/RedundantRegexpEscape:
  Enabled: true

Style/SlicingWithRange:
  Enabled: false

Style/AccessorGrouping:
  Enabled: false

Style/CaseLikeIf:
  Enabled: false

Style/StringConcatenation:
  Enabled: false

Style/OptionalBooleanParameter:
  Enabled: false

Style/SoleNestedConditional:
  Enabled: false

Style/CombinableLoops:
  Enabled: false

### Layout

Layout/BlockAlignment:
  Enabled: true

Layout/EndAlignment:
  Enabled: true

Layout/MultilineMethodCallBraceLayout:
  Enabled: true

Layout/AccessModifierIndentation:
  EnforcedStyle: indent
  Enabled: true

Layout/ClosingHeredocIndentation:
  Enabled: false

Layout/DotPosition:
  EnforcedStyle: trailing
  Enabled: true

Layout/EmptyLines:
  Enabled: true

Layout/EmptyLineAfterGuardClause:
  Enabled: true

Layout/EmptyLinesAroundAccessModifier:
  Enabled: true

Layout/EmptyLinesAroundClassBody:
  Enabled: true

Layout/EmptyLinesAroundMethodBody:
  Enabled: true

Layout/EmptyLinesAroundModuleBody:
  Enabled: true

Layout/EndOfLine:
  Enabled: true

Layout/ExtraSpacing:
  Enabled: true

Layout/IndentationConsistency:
  Enabled: true

Layout/IndentationWidth:
  Enabled: true

Layout/FirstHashElementIndentation:
  Enabled: true

Layout/HeredocIndentation:
  Enabled: false

Layout/LeadingCommentSpace:
  Enabled: true

Layout/MultilineOperationIndentation:
  Enabled: true

Layout/SpaceAroundBlockParameters:
  EnforcedStyleInsidePipes: no_space
  Enabled: true

Layout/SpaceAfterComma:
  Enabled: true

Layout/SpaceAfterNot:
  Enabled: true

Layout/SpaceAfterSemicolon:
  Enabled: true

Layout/SpaceAroundEqualsInParameterDefault:
  Enabled: true

Layout/SpaceAroundOperators:
  Enabled: true

Layout/SpaceBeforeBlockBraces:
  Enabled: true

Layout/SpaceBeforeComma:
  Enabled: true

Layout/SpaceInsideBlockBraces:
  Enabled: true

Layout/SpaceInsideHashLiteralBraces:
  Enabled: true

Layout/SpaceInsideArrayLiteralBrackets:
  Enabled: true

Layout/SpaceInsideStringInterpolation:
  EnforcedStyle: no_space
  Enabled: true

Layout/TrailingEmptyLines:
  Enabled: true

Layout/TrailingWhitespace:
  Enabled: true
  AllowInHeredoc: true

Layout/EmptyLinesAroundAttributeAccessor:
  Enabled: true

Layout/SpaceAroundMethodCallOperator:
  Enabled: true

Layout/LineLength:
  Max: 256
  Exclude:
    - "test/**/*"

#### Metrics

Metrics/BlockNesting:
  Max: 4

Metrics/ModuleLength:
  Max: 300

Metrics/ParameterLists:
  Max: 8

Metrics/PerceivedComplexity:
  Max: 28

Metrics/ClassLength:
  Max: 1500
  Exclude:
    - 'test/*.rb'

### should be < 50
Metrics/MethodLength:
  Max: 100
  Exclude:
    - "bin/review-*"
    - "bin/review2*"
    - "test/**/*"

### should be < 20
Metrics/CyclomaticComplexity:
  Max: 25

### should be < 60
Metrics/AbcSize:
  Max: 120
  Exclude:
    - "bin/review-*"
    - "test/**/*"

### shoud be < 25
Metrics/BlockLength:
  CountComments: false  # count full line comments?
  Max: 62
  Exclude:
    - 'Rakefile'
    - '**/*.rake'
    - 'test/**/*.rb'

## Naming

Naming/AccessorMethodName:
  Enabled: true

# When defining the == operator, name its argument other.
Naming/BinaryOperatorParameterName:
  Enabled: true

Naming/FileName:
  Enabled: false

Naming/HeredocDelimiterNaming:
  Enabled: false

Naming/MemoizedInstanceVariableName:
  Enabled: false

Naming/MethodName:
  Enabled: true

Naming/MethodParameterName:
  Enabled: false

# Use snake_case for variable names.
Naming/VariableName:
  Enabled: true

Naming/VariableNumber:
  EnforcedStyle: normalcase
  Enabled: true
  Exclude:
    - test/*

#### Security

Security/YAMLLoad:
  Enabled: true

#### Gemspec

Gemspec/RequiredRubyVersion:
  Enabled: false