new_cops.md

Cop Name	Offenses	Auto-correctable	Enable	Notes
Naming/VariableNumber	401	No	❌	Extended in v1.2 to handle method names and symbols.
Style/StringConcatenation	372	Yes (Unsafe)	✅	Added in v0.89. String interplation vs concatenation is somewhat inconsistent in our codebase already. Would probably benefit from this.
Style/AccessorGrouping	182	Yes	✅	Majority of offenses in Smart Answers, and a few in Whitehall.
RSpec/MultipleMemoizedHelpers	152	No	✅	Added in v1.43. Majority offenses in Asset Manager. Rest in Content Publisher, Bouncer, Authenticating Proxy. Maybe tricky to fix, however preferable to disable in individual repos to allow us to enable for the rest.
Style/GlobalStdStream	104	Yes (Unsafe)	✅	Added in v0.89. Theres at least 1 offence in most repos, usually around setting up logging. Should be an easy fix. More information in the Ruby style guide
Style/RedundantRegexpEscape	95	Yes	✅	Added in v0.85. Handful of offences in about 20~ repos. Easy to fix.
Layout/EmptyLinesAroundAttributeAccessor	89	Yes	✅	Added in v0.83. Affects majority of repos, but easy to fix.
Lint/ConstantDefinitionInBlock	87	No	✅	Added in v0.91. Affects majority of repos, but easy to fix.
Lint/MissingSuper	75	No	❌	Added in v0.89. 3 out of 15 repos have majority of offences, maybe tricky to fix as impacts code logic (can disable in individual repos, where difficult to fix).
Style/SingleArgumentDig	59	Yes (Unsafe)	✅	Added in v0.89. Offences present in 10 repos, majority in 3 of them.
Style/CaseLikeIf	55	Yes(Unsafe)	✅	Added in v0.88. Most offenses in Whitehall and Smart Answers.
Style/OptionalBooleanParameter	51	No	✅	Added in v0.89.
Layout/EmptyLineBetweenDefs	50	Yes	✅	Extended in v1.4 to check empty lines between Module, Class and Method defs.
Style/SlicingWithRange	40	Yes (unsafe)	✅
Style/SoleNestedConditional	35	Yes	✅
Style/ExplicitBlockArgument	32	Yes (unsafe)	✅
Style/KeywordParametersOrder	30	Yes	✅
Style/RedundantFetchBlock	28	Yes (unsafe)	✅
Lint/UselessMethodDefinition	21	Yes(unsafe)	✅
Layout/RescueEnsureAlignment	19	Yes	✅
Style/RedundantAssignment	19	Yes	✅
Style/HashAsLastArrayItem	18	Yes	✅
Style/CommentAnnotation	18	Yes	✅
RSpec/StubbedMock	17		✅
Style/RedundantFileExtensionInRequire	15	Yes	✅
Layout/BeginEndAlignment	14	Yes	✅
Lint/RedundantCopDisableDirective	10	Yes	✅
Layout/AccessModifierIndentation	10	Yes	✅
Style/ClassEqualityComparison	6		✅
Lint/MixedRegexpCaptureTypes	6		✅
Style/CombinableLoops	5		✅
Style/RedundantRegexpCharacterClass	5		✅
Layout/SpaceAroundMethodCallOperator	4		✅
Lint/UselessTimes	4		✅
Style/HashTransformValues	3		✅
Lint/EmptyFile	3		✅
Lint/DuplicateRequire	3		✅
Style/HashTransformKeys	2		✅
Style/RedundantSelf	2		✅
Lint/DeprecatedOpenSSLConstant	2		✅
Lint/SelfAssignment	2		✅
Lint/Debugger	2		✅
Style/RedundantParentheses	1		✅
Style/MixinUsage	1		✅
Security/Open	1		✅
Bundler/OrderedGems	1		✅
Lint/BinaryOperatorWithIdenticalOperands	1		✅
Style/RedundantBegin	1		✅
Style/HashEachMethods	1		✅
Naming/MemoizedInstanceVariableName	1		✅
Lint/RaiseException	1		✅
Lint/StructNewOverride	1		✅
Style/HashLikeCase	1		✅