.rubocop.yml

AsciiComments:
   Description: Use only ascii symbols in comments.
   Enabled: false

AsciiIdentifiers:
   Description: Use only ascii symbols in identifiers.
   Enabled: false


AssignmentInCondition:
   Description: Don't use assignment in conditions.
   Enabled: true
   AllowSafeAssignment: true
BlockAlignment:
   Description: Align block ends correctly.
   Enabled: true

Debugger:
   Description: Check for debugger calls.
   Enabled: true

EmptyEnsure:
   Description: Checks for empty ensure block.
   Enabled: true

EndAlignment:
   Description: Align ends correctly.
   Enabled: true

EndInMethod:
   Description: END blocks should not be placed inside method definitions.
   Enabled: true

EnsureReturn:
   Description: Never use return in an ensure block.
   Enabled: true

Eval:
   Description: The use of eval represents a serious security risk.
   Enabled: true

HandleExceptions:
   Description: Don't suppress exception.
   Enabled: true

LiteralInCondition:
   Description: Checks of literals used in conditions.
   Enabled: true

Loop:
   Description: Use Kernel#loop with break rather than begin/end/until or begin/end/while for post-loop tests.
   Enabled: true

ParenthesesAsGroupedExpression:
   Description: Checks for method calls with a space before the opening parenthesis.
   Enabled: true

RescueException:
   Description: Avoid rescuing the Exception class.
   Enabled: true

ShadowingOuterLocalVariable:
   Description: Do not use the same name as outer local variable for block arguments or block local variables.
   Enabled: true

Syntax:
   Description: Reports several basic syntax warnings and invalid syntaxes.
   Enabled: false

UnreachableCode:
   Description: Unreachable code.
   Enabled: true

UselessAssignment:
   Description: Checks for useless assignment to a local variable.
   Enabled: true

UselessComparison:
   Description: Checks for comparison of something with itself.
   Enabled: true

UselessSetterCall:
   Description: Checks for useless setter call to a local variable.
   Enabled: true

Void:
   Description: Possible use of operator/literal/variable in void context.
   Enabled: true

HasAndBelongsToMany:
   Description: Prefer has_many :through to has_and_belongs_to_many.
   Enabled: true

ReadAttribute:
   Description: Prefer self[:attribute] over read_attribute(:attribute).
   Enabled: true

Validation:
   Description: Use sexy validations.
   Enabled: true

# AccessControl:
#    Description: Indent private/protected as deep as defs and keep blank lines around them.
#    Enabled: true

Alias:
   Description: Use alias_method instead of alias.
   Enabled: true

AlignArray:
   Description: Align the elements of an array literal if they span more than one line.
   Enabled: true

AlignHash:
   Description: Align the elements of a hash literal if they span more than one line.
   Enabled: true
   EnforcedHashRocketStyle: key
   EnforcedColonStyle: key

AlignParameters:
   Description: Align the parameters of a method call if they span more than one line.
   Enabled: true

AndOr:
   Description: Use &&/|| instead of and/or.
   Enabled: true

Attr:
   Description: Checks for uses of Module#attr.
   Enabled: true

BeginBlock:
   Description: Avoid the use of BEGIN blocks.
   Enabled: true

BlockComments:
   Description: Do not use block comments.
   Enabled: true

BlockNesting:
   Description: Avoid excessive block nesting
   Enabled: true
   Max: 3

Blocks:
   Description: Avoid using {...} for multi-line blocks (multiline chaining is always ugly). Prefer {...} over do...end for single-line blocks.
   Enabled: false

BracesAroundHashParameters:
   Description: Enforce braces style inside hash parameters.
   Enabled: true
   EnforcedStyle: no_braces

CaseEquality:
   Description: Avoid explicit use of the case equality operator(===).
   Enabled: true

CaseIndentation:
   Description: Indent when as deep as case.
   Enabled: true

CharacterLiteral:
   Description: Checks for uses of character literals.
   Enabled: true

ClassAndModuleCamelCase:
   Description: Use CamelCase for classes and modules.
   Enabled: true

ClassLength:
   Description: Avoid classes longer than 100 lines of code.
   Enabled: true
   CountComments: false
   Max: 100

ClassMethods:
   Description: Use self when defining module/class methods.
   Enabled: true

ClassVars:
   Description: Avoid the use of class variables.
   Enabled: true

CollectionMethods:
   Description: Preferred collection methods.
   Enabled: false
   PreferredMethods: '{"collect"=>"map", "collect!"=>"map!", "inject"=>"reduce", "detect"=>"find", "find_all"=>"select"}'

ColonMethodCall:
   Description: 'Do not use :: for method call.'
   Enabled: true

CommentAnnotation:
   Description: Checks formatting of special comments (TODO, FIXME, OPTIMIZE, HACK, REVIEW).
   Enabled: true
   Keywords: ["TODO", "FIXME", "OPTIMIZE", "HACK", "REVIEW"]

ConstantName:
   Description: Constants should use SCREAMING_SNAKE_CASE.
   Enabled: true

DefWithParentheses:
   Description: Use def with parentheses when there are arguments.
   Enabled: true

DefWithoutParentheses:
   Description: Omit the parentheses when the method doesn't accept any arguments.
   Enabled: true

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

DotPosition:
   Description: Checks the position of the dot in multi-line method calls.
   Enabled: true
   Style: leading

EmptyLineBetweenDefs:
   Description: Use empty lines between defs.
   Enabled: true
   AllowAdjacentOneLineDefs: false

EmptyLines:
   Description: Don't use several empty lines in a row.
   Enabled: false

EmptyLiteral:
   Description: Prefer literals to Array.new/Hash.new/String.new.
   Enabled: true

Encoding:
   Description: Use UTF-8 as the source file encoding.
   Enabled: false

EndBlock:
   Description: Avoid the use of END blocks.
   Enabled: true

EndOfLine:
   Description: Use Unix-style line endings.
   Enabled: true

EvenOdd:
   Description: Favor the use of Fixnum#even? && Fixnum#odd?
   Enabled: true

FavorJoin:
   Description: Use Array#join instead of Array#*.
   Enabled: true

FavorSprintf:
   Description: Use sprintf instead of String#%.
   Enabled: true

FavorUnlessOverNegatedIf:
   Description: Favor unless over if for negative conditions (or control flow or).
   Enabled: true

FavorUntilOverNegatedWhile:
   Description: Favor until over while for negative conditions.
   Enabled: true

FinalNewline:
   Description: Checks for a final newline in a source file.
   Enabled: true

For:
   Description: Prefer each over for.
   Enabled: true

GlobalVars:
   Description: Do not introduce global variables.
   Enabled: true
   AllowedVariables: []

HashMethods:
   Description: Checks for use of deprecated Hash methods.
   Enabled: true

HashSyntax:
   Description: 'Prefer Ruby 1.9 hash syntax { a: 1, b: 2 } over 1.8 syntax { :a => 1, :b => 2 }.'
   Enabled: false
   EnforcedStyle: ruby19

IfUnlessModifier:
   Description: Favor modifier if/unless usage when you have a single-line body.
   Enabled: true

IfWithSemicolon:
   Description: Never use if x; .... Use the ternary operator instead.
   Enabled: true

IndentationWidth:
   Description: Use 2 spaces for indentation.
   Enabled: true

Lambda:
   Description: Use the new lambda literal syntax for single-line blocks.
   Enabled: true

LambdaCall:
   Description: Use lambda.call(...) instead of lambda.(...).
   Enabled: true
   EnforcedStyle: call

LeadingCommentSpace:
   Description: Comments should start with a space.
   Enabled: true

LineLength:
   Description: Limit lines to 79 characters.
   Enabled: false
   Max: 79

MethodCallParentheses:
   Description: Do not use parentheses for method calls with no arguments.
   Enabled: true

MethodCalledOnDoEndBlock:
   Description: Avoid chaining a method call on a do...end block.
   Enabled: false

MethodLength:
   Description: Avoid methods longer than 10 lines of code.
   Enabled: true
   CountComments: false
   Max: 65

MethodName:
   Description: Use the configured style when naming methods.
   Enabled: true
   EnforcedStyle: snake_case

ModuleFunction:
   Description: Checks for usage of `extend self` in modules.
   Enabled: true

MultilineBlockChain:
   Description: Avoid multi-line chains of blocks.
   Enabled: true

MultilineIfThen:
   Description: Never use then for multi-line if/unless.
   Enabled: true

MultilineTernaryOperator:
   Description: 'Avoid multi-line ?: (the ternary operator); use if/unless instead.'
   Enabled: true

NestedTernaryOperator:
   Description: Use one expression per branch in a ternary operator.
   Enabled: true

NilComparison:
   Description: Prefer x.nil? to x == nil.
   Enabled: true

Not:
   Description: Use ! instead of not.
   Enabled: true

NumericLiterals:
   Description: Add underscores to large numeric literals to improve their readability.
   Enabled: true
   MinDigits: 5

OneLineConditional:
   Description: Favor the ternary operator(?:) over if/then/else/end constructs.
   Enabled: true

OpMethod:
   Description: When defining binary operators, name the argument other.
   Enabled: true

ParameterLists:
   Description: Avoid parameter lists longer than three or four parameters.
   Enabled: true
   Max: 5
   CountKeywordArgs: true

ParenthesesAroundCondition:
   Description: Don't use parentheses around the condition of an if/unless/while.
   Enabled: true
   AllowSafeAssignment: true

PerlBackrefs:
   Description: Avoid Perl-style regex back references.
   Enabled: true

Proc:
   Description: Use proc instead of Proc.new.
   Enabled: true

RaiseArgs:
   Description: Checks the arguments passed to raise/fail.
   Enabled: true
   EnforcedStyle: exploded

ReduceArguments:
   Description: Name reduce arguments |a, e| (accumulator, element)
   Enabled: true

RedundantBegin:
   Description: Don't use begin blocks when they are not needed.
   Enabled: true

RedundantException:
   Description: Checks for an obsolete RuntimeException argument in raise/fail.
   Enabled: true

RedundantReturn:
   Description: Don't use return where it's not required.
   Enabled: true
   AllowMultipleReturnValues: false

RedundantSelf:
   Description: Don't use self where it's not needed.
   Enabled: false

RegexpLiteral:
   Description: Use %r for regular expressions matching more than `MaxSlashes` '/' characters. Use %r only for regular expressions matching more than `MaxSlashes` '/' character.
   Enabled: true
   MaxSlashes: 1

RescueModifier:
   Description: Avoid using rescue in its modifier form.
   Enabled: false

Semicolon:
   Description: Don't use semicolons to terminate expressions.
   Enabled: true
   AllowAsExpressionSeparator: false

SignalException:
   Description: Checks for proper usage of fail and raise.
   Enabled: false
   EnforcedStyle: semantic

SingleLineMethods:
   Description: Avoid single-line methods.
   Enabled: false
   AllowIfMethodIsEmpty: true

SpaceAfterColon:
   Description: Use spaces after colons.
   Enabled: true

SpaceAfterComma:
   Description: Use spaces after commas.
   Enabled: true

SpaceAfterControlKeyword:
   Description: Use spaces after if/elsif/unless/while/until/case/when.
   Enabled: true

SpaceAfterMethodName:
   Description: Never put a space between a method name and the opening parenthesis.
   Enabled: true

SpaceAfterNot:
   Description: Tracks redundant space after the ! operator.
   Enabled: true

SpaceAfterSemicolon:
   Description: Use spaces after semicolons.
   Enabled: true

SpaceAroundBlockBraces:
   Description: 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.
   Enabled: true
   EnforcedStyle: space_inside_braces
   SpaceBeforeBlockParameters: true

SpaceAroundEqualsInParameterDefault:
   Description: Use spaces around the = operator when assigning default values in def params.
   Enabled: true

SpaceAroundOperators:
   Description: Use spaces around operators.
   Enabled: true

SpaceBeforeModifierKeyword:
   Description: Put a space before the modifier keyword.
   Enabled: true

SpaceInsideBrackets:
   Description: No spaces after [ or before ].
   Enabled: true

SpaceInsideHashLiteralBraces:
   Description: Use spaces inside hash literal braces or don't.
   Enabled: true

SpaceInsideParens:
   Description: No spaces after ( or before ).
   Enabled: true

SpecialGlobalVars:
   Description: Avoid Perl-style global variables.
   Enabled: true

StringLiterals:
   Description: Checks if uses of quotes match the configured preference.
   Enabled: true
   EnforcedStyle: single_quotes

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

SymbolName:
   Description: Symbol literals should use snake_case.
   Enabled: true
   AllowCamelCase: true

Tab:
   Description: No hard tabs.
   Enabled: true
TrailingBlankLines:
   Description: Checks for superflous trailing blank lines.
   Enabled: false

TrailingWhitespace:
   Description: Avoid trailing whitespace.
   Enabled: true

TrivialAccessors:
   Description: Prefer attr_* methods to trivial readers/writers.
   Enabled: true
   ExactNameMatch: false
   AllowPredicates: false
   Whitelist: ["to_ary", "to_a", "to_c", "to_enum", "to_h", "to_hash", "to_i", "to_int", "to_io", "to_open", "to_path", "to_proc", "to_r", "to_regexp", "to_str", "to_s", "to_sym"]

UnlessElse:
   Description: Never use unless with else. Rewrite these with the positive case first.
   Enabled: true

VariableInterpolation:
   Description: Don't interpolate global, instance and class variables directly in strings.
   Enabled: true

VariableName:
   Description: Use the configured style when naming variables.
   Enabled: true
   EnforcedStyle: snake_case

WhenThen:
   Description: Use when x then ... for one-line cases.
   Enabled: true

WhileUntilDo:
   Description: Checks for redundant do after while or until.
   Enabled: true

WhileUntilModifier:
   Description: Favor modifier while/until usage when you have a single-line body.
   Enabled: true

WordArray:
   Description: Use %w or %W for arrays of words.
   Enabled: true