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AllCops:
  TargetRubyVersion: 2.1
  # Cop names are not displayed in offense messages by default. Change behavior
  # by overriding DisplayCopNames, or by giving the -D/--display-cop-names
  # option.
  DisplayCopNames: true
  # Style guide URLs are not displayed in offense messages by default. Change
  # behavior by overriding DisplayStyleGuide, or by giving the
  # -S/--display-style-guide option.
  DisplayStyleGuide: false
  # Exclude some GitLab files
  Exclude:
    - 'vendor/**/*'
    - 'db/**/*'
    - 'tmp/**/*'
    - 'bin/**/*'
    - 'lib/backup/**/*'
    - 'lib/ci/backup/**/*'
    - 'lib/tasks/**/*'
    - 'lib/ci/migrate/**/*'
    - 'lib/email_validator.rb'
    - 'lib/gitlab/upgrader.rb'
    - 'lib/gitlab/seeder.rb'
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    - 'generator_templates/**/*'
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##################### Style ##################################

# Check indentation of private/protected visibility modifiers.
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Style/AccessModifierIndentation:
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  Enabled: true
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# Check the naming of accessor methods for get_/set_.
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Style/AccessorMethodName:
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  Enabled: false
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# Use alias_method instead of alias.
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Style/Alias:
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  EnforcedStyle: prefer_alias_method
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  Enabled: true
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# Align the elements of an array literal if they span more than one line.
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Style/AlignArray:
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  Enabled: true
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# Align the elements of a hash literal if they span more than one line.
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Style/AlignHash:
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  Enabled: true
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# Align the parameters of a method call if they span more than one line.
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Style/AlignParameters:
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  Enabled: false
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# Use &&/|| instead of and/or.
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Style/AndOr:
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  Enabled: false
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# Use `Array#join` instead of `Array#*`.
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Style/ArrayJoin:
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  Enabled: false
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# Use only ascii symbols in comments.
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Style/AsciiComments:
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  Enabled: true
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# Use only ascii symbols in identifiers.
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Style/AsciiIdentifiers:
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  Enabled: true
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# Checks for uses of Module#attr.
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Style/Attr:
  Enabled: false

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# Avoid the use of BEGIN blocks.
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Style/BeginBlock:
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  Enabled: true
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# Checks if usage of %() or %Q() matches configuration.
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Style/BarePercentLiterals:
  Enabled: false

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# Do not use block comments.
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Style/BlockComments:
  Enabled: false

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# Put end statement of multiline block on its own line.
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Style/BlockEndNewline:
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  Enabled: true
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# Avoid using {...} for multi-line blocks (multiline chaining is # always
# ugly). Prefer {...} over do...end for single-line blocks.
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Style/BlockDelimiters:
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  Enabled: true
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# Enforce braces style around hash parameters.
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Style/BracesAroundHashParameters:
  Enabled: false

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# Avoid explicit use of the case equality operator(===).
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Style/CaseEquality:
  Enabled: false

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# Indentation of when in a case/when/[else/]end.
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Style/CaseIndentation:
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  Enabled: true
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# Checks for uses of character literals.
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Style/CharacterLiteral:
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  Enabled: true
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# Use CamelCase for classes and modules.'
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Style/ClassAndModuleCamelCase:
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  Enabled: true
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# Checks style of children classes and modules.
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Style/ClassAndModuleChildren:
  Enabled: false

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# Enforces consistent use of `Object#is_a?` or `Object#kind_of?`.
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Style/ClassCheck:
  Enabled: false

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# Use self when defining module/class methods.
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Style/ClassMethods:
  Enabled: false

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# Avoid the use of class variables.
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Style/ClassVars:
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  Enabled: true
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# Do not use :: for method call.
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Style/ColonMethodCall:
  Enabled: false

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# Checks formatting of special comments (TODO, FIXME, OPTIMIZE, HACK, REVIEW).
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Style/CommentAnnotation:
  Enabled: false

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# Indentation of comments.
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Style/CommentIndentation:
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  Enabled: true
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# Use the return value of `if` and `case` statements for assignment to a
# variable and variable comparison instead of assigning that variable
# inside of each branch.
Style/ConditionalAssignment:
  Enabled: false

# Constants should use SCREAMING_SNAKE_CASE.
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Style/ConstantName:
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  Enabled: true
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# Use def with parentheses when there are arguments.
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Style/DefWithParentheses:
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  Enabled: true
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# Checks for use of deprecated Hash methods.
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Style/DeprecatedHashMethods:
  Enabled: false

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

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# Checks the position of the dot in multi-line method calls.
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Style/DotPosition:
  Enabled: false

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

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# Prefer `each_with_object` over `inject` or `reduce`.
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Style/EachWithObject:
  Enabled: false

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# Align elses and elsifs correctly.
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Style/ElseAlignment:
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  Enabled: true
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# Avoid empty else-clauses.
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Style/EmptyElse:
  Enabled: false

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# Use empty lines between defs.
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Style/EmptyLineBetweenDefs:
  Enabled: false

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# Don't use several empty lines in a row.
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Style/EmptyLines:
  Enabled: false

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# Keep blank lines around access modifiers.
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Style/EmptyLinesAroundAccessModifier:
  Enabled: false

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# Keeps track of empty lines around block bodies.
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Style/EmptyLinesAroundBlockBody:
  Enabled: false

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# Keeps track of empty lines around class bodies.
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Style/EmptyLinesAroundClassBody:
  Enabled: false

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# Keeps track of empty lines around module bodies.
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Style/EmptyLinesAroundModuleBody:
  Enabled: false

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# Keeps track of empty lines around method bodies.
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Style/EmptyLinesAroundMethodBody:
  Enabled: false

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# Prefer literals to Array.new/Hash.new/String.new.
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Style/EmptyLiteral:
  Enabled: false

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# Avoid the use of END blocks.
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Style/EndBlock:
  Enabled: false

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# Use Unix-style line endings.
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Style/EndOfLine:
  Enabled: false

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# Favor the use of Fixnum#even? && Fixnum#odd?
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Style/EvenOdd:
  Enabled: false

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# Do not use unnecessary spacing.
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Style/ExtraSpacing:
  Enabled: false

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# Use snake_case for source file names.
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Style/FileName:
  Enabled: false

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# Checks for flip flops.
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Style/FlipFlop:
  Enabled: false

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# Checks use of for or each in multiline loops.
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Style/For:
  Enabled: false

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# Enforce the use of Kernel#sprintf, Kernel#format or String#%.
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Style/FormatString:
  Enabled: false

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

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# Check for conditionals that can be replaced with guard clauses.
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Style/GuardClause:
  Enabled: false

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# Prefer Ruby 1.9 hash syntax `{ a: 1, b: 2 }`
# over 1.8 syntax `{ :a => 1, :b => 2 }`.
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Style/HashSyntax:
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  Enabled: true
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# Finds if nodes inside else, which can be converted to elsif.
Style/IfInsideElse:
  Enabled: false

# Favor modifier if/unless usage when you have a single-line body.
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Style/IfUnlessModifier:
  Enabled: false

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# Do not use if x; .... Use the ternary operator instead.
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Style/IfWithSemicolon:
  Enabled: false

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# Checks that conditional statements do not have an identical line at the
# end of each branch, which can validly be moved out of the conditional.
Style/IdenticalConditionalBranches:
  Enabled: false

# Checks the indentation of the first line of the right-hand-side of a
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# multi-line assignment.
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Style/IndentAssignment:
  Enabled: false

# Keep indentation straight.
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Style/IndentationConsistency:
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  Enabled: true
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# Use 2 spaces for indentation.
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Style/IndentationWidth:
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  Enabled: true
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# Checks the indentation of the first element in an array literal.
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Style/IndentArray:
  Enabled: false

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# Checks the indentation of the first key in a hash literal.
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Style/IndentHash:
  Enabled: false

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# Use Kernel#loop for infinite loops.
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Style/InfiniteLoop:
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  Enabled: true
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# Use the new lambda literal syntax for single-line blocks.
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Style/Lambda:
  Enabled: false

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# Use lambda.call(...) instead of lambda.(...).
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Style/LambdaCall:
  Enabled: false

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# Comments should start with a space.
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Style/LeadingCommentSpace:
  Enabled: false

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# Use \ instead of + or << to concatenate two string literals at line end.
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Style/LineEndConcatenation:
  Enabled: false

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# Do not use parentheses for method calls with no arguments.
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Style/MethodCallParentheses:
  Enabled: false

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# Checks if the method definitions have or don't have parentheses.
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Style/MethodDefParentheses:
  Enabled: false

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# Use the configured style when naming methods.
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Style/MethodName:
  Enabled: false

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# Checks for usage of `extend self` in modules.
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Style/ModuleFunction:
  Enabled: false

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# Checks that the closing brace in an array literal is either on the same line
# as the last array element, or a new line.
Style/MultilineArrayBraceLayout:
  Enabled: false
  EnforcedStyle: symmetrical

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# Avoid multi-line chains of blocks.
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Style/MultilineBlockChain:
  Enabled: false

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# Ensures newlines after multiline block do statements.
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Style/MultilineBlockLayout:
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  Enabled: true
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# Checks that the closing brace in a hash literal is either on the same line as
# the last hash element, or a new line.
Style/MultilineHashBraceLayout:
  Enabled: false
  EnforcedStyle: symmetrical

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# Do not use then for multi-line if/unless.
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Style/MultilineIfThen:
  Enabled: false

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# Checks that the closing brace in a method call is either on the same line as
# the last method argument, or a new line.
Style/MultilineMethodCallBraceLayout:
  Enabled: false
  EnforcedStyle: symmetrical

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# Checks indentation of method calls with the dot operator that span more than
# one line.
Style/MultilineMethodCallIndentation:
  Enabled: false

# Checks indentation of binary operations that span more than one line.
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Style/MultilineOperationIndentation:
  Enabled: false

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# Avoid multi-line `? :` (the ternary operator), use if/unless instead.
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Style/MultilineTernaryOperator:
  Enabled: false

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# Do not assign mutable objects to constants.
Style/MutableConstant:
  Enabled: false

# Favor unless over if for negative conditions (or control flow or).
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Style/NegatedIf:
  Enabled: false

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# Favor until over while for negative conditions.
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Style/NegatedWhile:
  Enabled: false

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# Avoid using nested modifiers.
Style/NestedModifier:
  Enabled: false

# Parenthesize method calls which are nested inside the argument list of
# another parenthesized method call.
Style/NestedParenthesizedCalls:
  Enabled: false

# Use one expression per branch in a ternary operator.
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Style/NestedTernaryOperator:
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  Enabled: true
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# Use `next` to skip iteration instead of a condition at the end.
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Style/Next:
  Enabled: false

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# Prefer x.nil? to x == nil.
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Style/NilComparison:
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  Enabled: true
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# Checks for redundant nil checks.
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Style/NonNilCheck:
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  Enabled: true
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# Use ! instead of not.
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Style/Not:
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  Enabled: true
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# Add underscores to large numeric literals to improve their readability.
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Style/NumericLiterals:
  Enabled: false

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# Favor the ternary operator(?:) over if/then/else/end constructs.
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Style/OneLineConditional:
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  Enabled: true
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# When defining binary operators, name the argument other.
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Style/OpMethod:
  Enabled: false

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# Check for simple usages of parallel assignment. It will only warn when
# the number of variables matches on both sides of the assignment.
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Style/ParallelAssignment:
  Enabled: false

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# Don't use parentheses around the condition of an if/unless/while.
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Style/ParenthesesAroundCondition:
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  Enabled: true
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# Use `%`-literal delimiters consistently.
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Style/PercentLiteralDelimiters:
  Enabled: false

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# Checks if uses of %Q/%q match the configured preference.
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Style/PercentQLiterals:
  Enabled: false

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# Avoid Perl-style regex back references.
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Style/PerlBackrefs:
  Enabled: false

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# Check the names of predicate methods.
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Style/PredicateName:
  Enabled: false

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# Use proc instead of Proc.new.
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Style/Proc:
  Enabled: false

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# Checks the arguments passed to raise/fail.
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Style/RaiseArgs:
  Enabled: false

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# Don't use begin blocks when they are not needed.
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Style/RedundantBegin:
  Enabled: false

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# Checks for an obsolete RuntimeException argument in raise/fail.
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Style/RedundantException:
  Enabled: false

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# Checks usages of Object#freeze on immutable objects.
Style/RedundantFreeze:
  Enabled: false

# TODO: Enable RedundantParentheses Cop.
# Checks for parentheses that seem not to serve any purpose.
Style/RedundantParentheses:
  Enabled: false

# Don't use return where it's not required.
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Style/RedundantReturn:
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  Enabled: true
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# Don't use self where it's not needed.
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Style/RedundantSelf:
  Enabled: false

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# Use %r for regular expressions matching more than `MaxSlashes` '/'
# characters. Use %r only for regular expressions matching more
# than `MaxSlashes` '/' character.
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Style/RegexpLiteral:
  Enabled: false

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# Avoid using rescue in its modifier form.
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Style/RescueModifier:
  Enabled: false

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# Checks for places where self-assignment shorthand should have been used.
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Style/SelfAssignment:
  Enabled: false

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# Don't use semicolons to terminate expressions.
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Style/Semicolon:
  Enabled: false

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# Checks for proper usage of fail and raise.
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Style/SignalException:
  Enabled: false

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# Enforces the names of some block params.
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Style/SingleLineBlockParams:
  Enabled: false

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# Avoid single-line methods.
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Style/SingleLineMethods:
  Enabled: false

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# Use spaces after colons.
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Style/SpaceAfterColon:
  Enabled: false

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# Use spaces after commas.
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Style/SpaceAfterComma:
  Enabled: false

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# Do not put a space between a method name and the opening parenthesis in a
# method definition.
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Style/SpaceAfterMethodName:
  Enabled: false

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# Tracks redundant space after the ! operator.
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Style/SpaceAfterNot:
  Enabled: false

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# Use spaces after semicolons.
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Style/SpaceAfterSemicolon:
  Enabled: false

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# Checks that the equals signs in parameter default assignments have or don't
# have surrounding space depending on configuration.
Style/SpaceAroundEqualsInParameterDefault:
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  Enabled: false

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# Use a space around keywords if appropriate.
Style/SpaceAroundKeyword:
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  Enabled: true
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# Use a single space around operators.
Style/SpaceAroundOperators:
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  Enabled: true
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# Checks that the left block brace has or doesn't have space before it.
Style/SpaceBeforeBlockBraces:
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  Enabled: false

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# No spaces before commas.
Style/SpaceBeforeComma:
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  Enabled: false

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# Checks for missing space between code and a comment on the same line.
Style/SpaceBeforeComment:
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  Enabled: false

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# Checks that exactly one space is used between a method name and the first
# argument for method calls without parentheses.
Style/SpaceBeforeFirstArg:
  Enabled: false

# No spaces before semicolons.
Style/SpaceBeforeSemicolon:
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  Enabled: false

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# Checks that block braces have or don't have surrounding space.
# For blocks taking parameters, checks that the left brace has or doesn't
# have trailing space.
Style/SpaceInsideBlockBraces:
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  Enabled: false

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# No spaces after [ or before ].
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Style/SpaceInsideBrackets:
  Enabled: false

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# Use spaces inside hash literal braces - or don't.
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Style/SpaceInsideHashLiteralBraces:
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  Enabled: true
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# No spaces after ( or before ).
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Style/SpaceInsideParens:
  Enabled: false

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# No spaces inside range literals.
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Style/SpaceInsideRangeLiteral:
  Enabled: false

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# Checks for padding/surrounding spaces inside string interpolation.
Style/SpaceInsideStringInterpolation:
  Enabled: false

# Avoid Perl-style global variables.
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Style/SpecialGlobalVars:
  Enabled: false

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# Check for the usage of parentheses around stabby lambda arguments.
Style/StabbyLambdaParentheses:
  Enabled: false

# Checks if uses of quotes match the configured preference.
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Style/StringLiterals:
  Enabled: false

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# Checks if uses of quotes inside expressions in interpolated strings match the
# configured preference.
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Style/StringLiteralsInInterpolation:
  Enabled: false

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# Checks if configured preferred methods are used over non-preferred.
Style/StringMethods:
  Enabled: false

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

# Use symbols as procs instead of blocks when possible.
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Style/SymbolProc:
  Enabled: false

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# No hard tabs.
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Style/Tab:
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  Enabled: true
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# Checks trailing blank lines and final newline.
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Style/TrailingBlankLines:
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  Enabled: true
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# Checks for trailing comma in array and hash literals.
Style/TrailingCommaInLiteral:
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  Enabled: false

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# Checks for trailing comma in argument lists.
Style/TrailingCommaInArguments:
  Enabled: false

# Avoid trailing whitespace.
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Style/TrailingWhitespace:
  Enabled: false

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# Checks for the usage of unneeded trailing underscores at the end of
# parallel variable assignment.
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Style/TrailingUnderscoreVariable:
  Enabled: false

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# Prefer attr_* methods to trivial readers/writers.
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Style/TrivialAccessors:
  Enabled: false

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# Do not use unless with else. Rewrite these with the positive case first.
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Style/UnlessElse:
  Enabled: false

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# Checks for %W when interpolation is not needed.
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Style/UnneededCapitalW:
  Enabled: false

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# TODO: Enable UnneededInterpolation Cop.
# Checks for strings that are just an interpolated expression.
Style/UnneededInterpolation:
  Enabled: false

# Checks for %q/%Q when single quotes or double quotes would do.
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Style/UnneededPercentQ:
  Enabled: false

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# Don't interpolate global, instance and class variables directly in strings.
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Style/VariableInterpolation:
  Enabled: false

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# Use the configured style when naming variables.
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Style/VariableName:
  Enabled: false

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# Use when x then ... for one-line cases.
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Style/WhenThen:
  Enabled: false

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# Checks for redundant do after while or until.
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Style/WhileUntilDo:
  Enabled: false

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# Favor modifier while/until usage when you have a single-line body.
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Style/WhileUntilModifier:
  Enabled: false

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

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# TODO: Enable ZeroLengthPredicate Cop.
# Use #empty? when testing for objects of length 0.
Style/ZeroLengthPredicate:
  Enabled: false


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

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# A calculated magnitude based on number of assignments,
# branches, and conditions.
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Metrics/AbcSize:
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  Enabled: true
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  Max: 60
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# Avoid excessive block nesting.
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Metrics/BlockNesting:
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  Enabled: true
  Max: 4
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# Avoid classes longer than 100 lines of code.
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Metrics/ClassLength:
  Enabled: false

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# A complexity metric that is strongly correlated to the number
# of test cases needed to validate a method.
Metrics/CyclomaticComplexity:
  Enabled: true
  Max: 17

# Limit lines to 80 characters.
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Metrics/LineLength:
  Enabled: false

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# Avoid methods longer than 10 lines of code.
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Metrics/MethodLength:
  Enabled: false

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# Avoid modules longer than 100 lines of code.
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Metrics/ModuleLength:
  Enabled: false

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# Avoid parameter lists longer than three or four parameters.
Metrics/ParameterLists:
  Enabled: true
  Max: 8

# A complexity metric geared towards measuring complexity for a human reader.
Metrics/PerceivedComplexity:
  Enabled: true
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  Max: 18
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#################### Lint ################################

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# Checks for ambiguous operators in the first argument of a method invocation
# without parentheses.
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Lint/AmbiguousOperator:
  Enabled: false

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# Checks for ambiguous regexp literals in the first argument of a method
# invocation without parentheses.
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Lint/AmbiguousRegexpLiteral:
  Enabled: false

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# Don't use assignment in conditions.
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Lint/AssignmentInCondition:
  Enabled: false

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# Align block ends correctly.
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Lint/BlockAlignment:
  Enabled: false

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# Default values in optional keyword arguments and optional ordinal arguments
# should not refer back to the name of the argument.
Lint/CircularArgumentReference:
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  Enabled: true
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# Checks for condition placed in a confusing position relative to the keyword.
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Lint/ConditionPosition:
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  Enabled: true
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# Check for debugger calls.
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Lint/Debugger:
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  Enabled: true
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# Align ends corresponding to defs correctly.
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Lint/DefEndAlignment:
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  Enabled: true
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# Check for deprecated class method calls.
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Lint/DeprecatedClassMethods:
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  Enabled: true
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# Check for duplicate method definitions.
Lint/DuplicateMethods:
  Enabled: false

# Check for duplicate keys in hash literals.
Lint/DuplicatedKey:
  Enabled: false

# Check for immutable argument given to each_with_object.
Lint/EachWithObjectArgument:
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  Enabled: true
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# Check for odd code arrangement in an else block.
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Lint/ElseLayout:
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  Enabled: true
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# Checks for empty ensure block.
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Lint/EmptyEnsure:
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  Enabled: true
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# Checks for empty string interpolation.
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Lint/EmptyInterpolation:
  Enabled: false

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# Align ends correctly.
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Lint/EndAlignment:
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  Enabled: true
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# END blocks should not be placed inside method definitions.
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Lint/EndInMethod:
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  Enabled: true
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# Do not use return in an ensure block.
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Lint/EnsureReturn:
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  Enabled: true
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# The use of eval represents a serious security risk.
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Lint/Eval:
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  Enabled: true
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# Catches floating-point literals too large or small for Ruby to represent.
Lint/FloatOutOfRange:
835
  Enabled: true
836 837 838

# The number of parameters to format/sprint must match the fields.
Lint/FormatParameterMismatch:
839
  Enabled: true
840 841

# Don't suppress exception.
842 843 844
Lint/HandleExceptions:
  Enabled: false

845 846 847
# Checks for adjacent string literals on the same line, which could better be
# represented as a single string literal.
Lint/ImplicitStringConcatenation:
848
  Enabled: true
849 850 851 852 853 854 855 856 857

# TODO: Enable IneffectiveAccessModifier Cop.
# Checks for attempts to use `private` or `protected` to set the visibility
# of a class method, which does not work.
Lint/IneffectiveAccessModifier:
  Enabled: false

# Checks for invalid character literals with a non-escaped whitespace
# character.
858
Lint/InvalidCharacterLiteral:
859
  Enabled: true
860

861
# Checks of literals used in conditions.
862 863 864
Lint/LiteralInCondition:
  Enabled: false

865
# Checks for literals used in interpolation.
866
Lint/LiteralInInterpolation:
867
  Enabled: true
868

869 870
# Use Kernel#loop with break rather than begin/end/until or begin/end/while
# for post-loop tests.
871 872 873
Lint/Loop:
  Enabled: false

874 875
# Do not use nested method definitions.
Lint/NestedMethodDefinition:
876
  Enabled: true
877 878 879

# Do not omit the accumulator when calling `next` in a `reduce`/`inject` block.
Lint/NextWithoutAccumulator:
880
  Enabled: true
881 882

# Checks for method calls with a space before the opening parenthesis.
883
Lint/ParenthesesAsGroupedExpression:
884
  Enabled: true
885

886 887 888
# Checks for `rand(1)` calls. Such calls always return `0` and most likely
# a mistake.
Lint/RandOne:
889
  Enabled: true
890 891

# Use parentheses in the method call to avoid confusion about precedence.
892
Lint/RequireParentheses:
893
  Enabled: true
894

895
# Avoid rescuing the Exception class.
896
Lint/RescueException:
897
  Enabled: true
898

899 900
# Do not use the same name as outer local variable for block arguments
# or block local variables.
901 902 903
Lint/ShadowingOuterLocalVariable:
  Enabled: false

904
# 'Checks for Object#to_s usage in string interpolation.
905 906 907
Lint/StringConversionInInterpolation:
  Enabled: false

908
# Do not use prefix `_` for a variable that is used.
909
Lint/UnderscorePrefixedVariableName:
910
  Enabled: true
911

912 913 914 915 916 917 918
# Checks for rubocop:disable comments that can be removed.
# Note: this cop is not disabled when disabling all cops.
# It must be explicitly disabled.
Lint/UnneededDisable:
  Enabled: false

# Checks for unused block arguments.
919 920 921
Lint/UnusedBlockArgument:
  Enabled: false

922
# Checks for unused method arguments.
923 924 925
Lint/UnusedMethodArgument:
  Enabled: false

926
# Unreachable code.
927
Lint/UnreachableCode:
928
  Enabled: true
929

930
# Checks for useless access modifiers.
931 932 933
Lint/UselessAccessModifier:
  Enabled: false

934
# Checks for useless assignment to a local variable.
935
Lint/UselessAssignment:
936
  Enabled: true
937

938
# Checks for comparison of something with itself.
939
Lint/UselessComparison:
940
  Enabled: true
941

942
# Checks for useless `else` in `begin..end` without `rescue`.
943
Lint/UselessElseWithoutRescue:
944
  Enabled: true
945

946
# Checks for useless setter call to a local variable.
947
Lint/UselessSetterCall:
948
  Enabled: true
949

950
# Possible use of operator/literal/variable in void context.
951
Lint/Void:
952
  Enabled: true
953

954 955 956 957 958

##################### Performance ############################

# Use `casecmp` rather than `downcase ==`.
Performance/Casecmp: