.rubocop.yml
# Adapted from Thoughtbot's recommended config (https://github.com/thoughtbot/guides/blob/master/style/ruby/.rubocop.yml)
Naming/AccessorMethodName:
Description: Check the naming of accessor methods for get_/set_.
Enabled: false
Style/Alias:
Description: 'Use alias_method instead of alias.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#alias-method'
Enabled: false
Style/ArrayJoin:
Description: 'Use Array#join instead of Array#*.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#array-join'
Enabled: false
Style/AsciiComments:
Description: 'Use only ascii symbols in comments.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#english-comments'
Enabled: false
Naming/AsciiIdentifiers:
Description: 'Use only ascii symbols in identifiers.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#english-identifiers'
Enabled: false
Style/Attr:
Description: 'Checks for uses of Module#attr.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#attr'
Enabled: false
Metrics/BlockNesting:
Description: 'Avoid excessive block nesting'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#three-is-the-number-thou-shalt-count'
Enabled: false
Style/CaseEquality:
Description: 'Avoid explicit use of the case equality operator(===).'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-case-equality'
Enabled: false
Style/CharacterLiteral:
Description: 'Checks for uses of character literals.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-character-literals'
Enabled: false
Style/ClassAndModuleChildren:
Description: 'Checks style of children classes and modules.'
Enabled: true
EnforcedStyle: nested
Metrics/ClassLength:
Description: 'Avoid classes longer than 100 lines of code.'
Enabled: false
Metrics/ModuleLength:
Description: 'Avoid modules longer than 100 lines of code.'
Enabled: false
Style/ClassVars:
Description: 'Avoid the use of class variables.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-class-vars'
Enabled: false
Style/CollectionMethods:
Enabled: true
PreferredMethods:
find: detect
inject: reduce
collect: map
find_all: select
Style/ColonMethodCall:
Description: 'Do not use :: for method call.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#double-colons'
Enabled: false
Style/CommentAnnotation:
Description: >-
Checks formatting of special comments
(TODO, FIXME, OPTIMIZE, HACK, REVIEW).
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#annotate-keywords'
Enabled: false
Metrics/AbcSize:
Description: >-
A calculated magnitude based on number of assignments,
branches, and conditions.
Enabled: false
Metrics/BlockLength:
CountComments: true # count full line comments?
Max: 25
ExcludedMethods: []
Exclude:
- "spec/**/*"
Metrics/CyclomaticComplexity:
Description: >-
A complexity metric that is strongly correlated to the number
of test cases needed to validate a method.
Enabled: false
Rails/Delegate:
Description: 'Prefer delegate method for delegations.'
Enabled: false
Style/PreferredHashMethods:
Description: 'Checks use of `has_key?` and `has_value?` Hash methods.'
StyleGuide: '#hash-key'
Enabled: false
Style/Documentation:
Description: 'Document classes and non-namespace modules.'
Enabled: false
Style/DoubleNegation:
Description: 'Checks for uses of double negation (!!).'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-bang-bang'
Enabled: false
Style/EachWithObject:
Description: 'Prefer `each_with_object` over `inject` or `reduce`.'
Enabled: false
Style/EmptyLiteral:
Description: 'Prefer literals to Array.new/Hash.new/String.new.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#literal-array-hash'
Enabled: false
# Checks whether the source file has a utf-8 encoding comment or not
# AutoCorrectEncodingComment must match the regex
# /#.*coding\s?[:=]\s?(?:UTF|utf)-8/
Style/Encoding:
Enabled: false
Style/EvenOdd:
Description: 'Favor the use of Fixnum#even? && Fixnum#odd?'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#predicate-methods'
Enabled: false
Naming/FileName:
Description: 'Use snake_case for source file names.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#snake-case-files'
Enabled: false
Style/FrozenStringLiteralComment:
Description: >-
Add the frozen_string_literal comment to the top of files
to help transition from Ruby 2.3.0 to Ruby 3.0.
Enabled: false
Style/FlipFlop:
Description: 'Checks for flip flops'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-flip-flops'
Enabled: false
Style/FormatString:
Description: 'Enforce the use of Kernel#sprintf, Kernel#format or String#%.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#sprintf'
Enabled: false
Style/GlobalVars:
Description: 'Do not introduce global variables.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#instance-vars'
Reference: 'http://www.zenspider.com/Languages/Ruby/QuickRef.html'
Enabled: false
Style/GuardClause:
Description: 'Check for conditionals that can be replaced with guard clauses'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-nested-conditionals'
Enabled: false
Style/IfUnlessModifier:
Description: >-
Favor modifier if/unless usage when you have a
single-line body.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#if-as-a-modifier'
Enabled: false
Style/IfWithSemicolon:
Description: 'Do not use if x; .... Use the ternary operator instead.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-semicolon-ifs'
Enabled: false
Style/InlineComment:
Description: 'Avoid inline comments.'
Enabled: false
Style/Lambda:
Description: 'Use the new lambda literal syntax for single-line blocks.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#lambda-multi-line'
Enabled: false
Style/LambdaCall:
Description: 'Use lambda.call(...) instead of lambda.(...).'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#proc-call'
Enabled: false
Style/LineEndConcatenation:
Description: >-
Use \ instead of + or << to concatenate two string literals at
line end.
Enabled: false
Metrics/LineLength:
Description: 'Limit lines to 100 characters.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#80-character-limits'
Max: 100
Metrics/MethodLength:
Description: 'Avoid methods longer than 10 lines of code.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#short-methods'
Enabled: false
Style/ModuleFunction:
Description: 'Checks for usage of `extend self` in modules.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#module-function'
Enabled: false
Style/MultilineBlockChain:
Description: 'Avoid multi-line chains of blocks.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#single-line-blocks'
Enabled: false
Style/NegatedIf:
Description: >-
Favor unless over if for negative conditions
(or control flow or).
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#unless-for-negatives'
Enabled: false
Style/NegatedWhile:
Description: 'Favor until over while for negative conditions.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#until-for-negatives'
Enabled: false
Style/Next:
Description: 'Use `next` to skip iteration instead of a condition at the end.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-nested-conditionals'
Enabled: false
Style/NilComparison:
Description: 'Prefer x.nil? to x == nil.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#predicate-methods'
Enabled: false
Style/Not:
Description: 'Use ! instead of not.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#bang-not-not'
Enabled: false
Style/NumericLiterals:
Description: >-
Add underscores to large numeric literals to improve their
readability.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#underscores-in-numerics'
Enabled: false
Style/OneLineConditional:
Description: >-
Favor the ternary operator(?:) over
if/then/else/end constructs.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#ternary-operator'
Enabled: false
Naming/BinaryOperatorParameterName:
Description: 'When defining binary operators, name the argument other.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#other-arg'
Enabled: false
Metrics/ParameterLists:
Description: 'Avoid parameter lists longer than three or four parameters.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#too-many-params'
Enabled: false
Style/PercentLiteralDelimiters:
Description: 'Use `%`-literal delimiters consistently'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-literal-braces'
Enabled: false
Style/PerlBackrefs:
Description: 'Avoid Perl-style regex back references.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-perl-regexp-last-matchers'
Enabled: false
Naming/PredicateName:
Description: 'Check the names of predicate methods.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#bool-methods-qmark'
NamePrefixBlacklist:
- is_
Exclude:
- spec/**/*
Style/Proc:
Description: 'Use proc instead of Proc.new.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#proc'
Enabled: false
Style/RaiseArgs:
Description: 'Checks the arguments passed to raise/fail.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#exception-class-messages'
Enabled: false
Style/RegexpLiteral:
Description: 'Use / or %r around regular expressions.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-r'
Enabled: false
Style/SelfAssignment:
Description: >-
Checks for places where self-assignment shorthand should have
been used.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#self-assignment'
Enabled: false
Style/SingleLineBlockParams:
Description: 'Enforces the names of some block params.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#reduce-blocks'
Enabled: false
Style/SingleLineMethods:
Description: 'Avoid single-line methods.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-single-line-methods'
Enabled: false
Style/SignalException:
Description: 'Checks for proper usage of fail and raise.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#fail-method'
Enabled: false
Style/SpecialGlobalVars:
Description: 'Avoid Perl-style global variables.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-cryptic-perlisms'
Enabled: false
Style/StringLiterals:
Description: 'Checks if uses of quotes match the configured preference.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#consistent-string-literals'
EnforcedStyle: double_quotes
Enabled: true
Style/TrailingCommaInArguments:
Description: 'Checks for trailing comma in argument lists.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-trailing-array-commas'
EnforcedStyleForMultiline: comma
SupportedStylesForMultiline:
- comma
- consistent_comma
- no_comma
Enabled: true
Style/TrailingCommaInLiteral:
Description: 'Checks for trailing comma in array and hash literals.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-trailing-array-commas'
EnforcedStyleForMultiline: comma
SupportedStylesForMultiline:
- comma
- consistent_comma
- no_comma
Enabled: true
Style/TrivialAccessors:
Description: 'Prefer attr_* methods to trivial readers/writers.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#attr_family'
Enabled: false
Style/VariableInterpolation:
Description: >-
Don't interpolate global, instance and class variables
directly in strings.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#curlies-interpolate'
Enabled: false
Style/WhenThen:
Description: 'Use when x then ... for one-line cases.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#one-line-cases'
Enabled: false
Style/WhileUntilModifier:
Description: >-
Favor modifier while/until usage when you have a
single-line body.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#while-as-a-modifier'
Enabled: false
Style/WordArray:
Description: 'Use %w or %W for arrays of words.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-w'
Enabled: false
# Layout
Layout/AlignParameters:
Description: 'Here we check if the parameters on a multi-line method call or definition are aligned.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-double-indent'
Enabled: false
Layout/DotPosition:
Description: 'Checks the position of the dot in multi-line method calls.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#consistent-multi-line-chains'
EnforcedStyle: trailing
Layout/ExtraSpacing:
Description: 'Do not use unnecessary spacing.'
Enabled: true
Layout/MultilineOperationIndentation:
Description: >-
Checks indentation of binary operations that span more than
one line.
Enabled: true
EnforcedStyle: indented
Layout/MultilineMethodCallIndentation:
Description: >-
Checks indentation of method calls with the dot operator
that span more than one line.
Enabled: true
EnforcedStyle: indented
Layout/InitialIndentation:
Description: >-
Checks the indentation of the first non-blank non-comment line in a file.
Enabled: false
# Lint
Lint/AmbiguousOperator:
Description: >-
Checks for ambiguous operators in the first argument of a
method invocation without parentheses.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parens-as-args'
Enabled: false
Lint/AmbiguousRegexpLiteral:
Description: >-
Checks for ambiguous regexp literals in the first argument of
a method invocation without parenthesis.
Enabled: false
Lint/AssignmentInCondition:
Description: "Don't use assignment in conditions."
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#safe-assignment-in-condition'
Enabled: false
Lint/CircularArgumentReference:
Description: "Don't refer to the keyword argument in the default value."
Enabled: false
Lint/ConditionPosition:
Description: >-
Checks for condition placed in a confusing position relative to
the keyword.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#same-line-condition'
Enabled: false
Lint/DeprecatedClassMethods:
Description: 'Check for deprecated class method calls.'
Enabled: false
Lint/DuplicatedKey:
Description: 'Check for duplicate keys in hash literals.'
Enabled: false
Lint/EachWithObjectArgument:
Description: 'Check for immutable argument given to each_with_object.'
Enabled: false
Lint/ElseLayout:
Description: 'Check for odd code arrangement in an else block.'
Enabled: false
Lint/FormatParameterMismatch:
Description: 'The number of parameters to format/sprint must match the fields.'
Enabled: false
Lint/HandleExceptions:
Description: "Don't suppress exception."
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#dont-hide-exceptions'
Enabled: false
Lint/LiteralInCondition:
Description: 'Checks of literals used in conditions.'
Enabled: false
Lint/LiteralInInterpolation:
Description: 'Checks for literals used in interpolation.'
Enabled: false
Lint/Loop:
Description: >-
Use Kernel#loop with break rather than begin/end/until or
begin/end/while for post-loop tests.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#loop-with-break'
Enabled: false
Lint/NestedMethodDefinition:
Description: 'Do not use nested method definitions.'
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-nested-methods'
Enabled: false
Lint/NonLocalExitFromIterator:
Description: 'Do not use return in iterator to cause non-local exit.'
Enabled: false
Lint/ParenthesesAsGroupedExpression:
Description: >-
Checks for method calls with a space before the opening
parenthesis.
StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parens-no-spaces'
Enabled: false
Lint/RequireParentheses:
Description: >-
Use parentheses in the method call to avoid confusion
about precedence.
Enabled: false
Lint/UnderscorePrefixedVariableName:
Description: 'Do not use prefix `_` for a variable that is used.'
Enabled: false
Lint/UnneededDisable:
Description: >-
Checks for rubocop:disable comments that can be removed.
Note: this cop is not disabled when disabling all cops.
It must be explicitly disabled.
Enabled: false
Lint/Void:
Description: 'Possible use of operator/literal/variable in void context.'
Enabled: false
# Performance
Performance/CaseWhenSplat:
Description: >-
Place `when` conditions that use splat at the end
of the list of `when` branches.
Enabled: false
Performance/Count:
Description: >-
Use `count` instead of `select...size`, `reject...size`,
`select...count`, `reject...count`, `select...length`,
and `reject...length`.
Enabled: false
Performance/Detect:
Description: >-
Use `detect` instead of `select.first`, `find_all.first`,
`select.last`, and `find_all.last`.
Reference: 'https://github.com/JuanitoFatas/fast-ruby#enumerabledetect-vs-enumerableselectfirst-code'
Enabled: false
Performance/FlatMap:
Description: >-
Use `Enumerable#flat_map`
instead of `Enumerable#map...Array#flatten(1)`
or `Enumberable#collect..Array#flatten(1)`
Reference: 'https://github.com/JuanitoFatas/fast-ruby#enumerablemaparrayflatten-vs-enumerableflat_map-code'
Enabled: false
Performance/ReverseEach:
Description: 'Use `reverse_each` instead of `reverse.each`.'
Reference: 'https://github.com/JuanitoFatas/fast-ruby#enumerablereverseeach-vs-enumerablereverse_each-code'
Enabled: false
Performance/Sample:
Description: >-
Use `sample` instead of `shuffle.first`,
`shuffle.last`, and `shuffle[Fixnum]`.
Reference: 'https://github.com/JuanitoFatas/fast-ruby#arrayshufflefirst-vs-arraysample-code'
Enabled: false
Performance/Size:
Description: >-
Use `size` instead of `count` for counting
the number of elements in `Array` and `Hash`.
Reference: 'https://github.com/JuanitoFatas/fast-ruby#arraycount-vs-arraysize-code'
Enabled: false
Performance/StringReplacement:
Description: >-
Use `tr` instead of `gsub` when you are replacing the same
number of characters. Use `delete` instead of `gsub` when
you are deleting characters.
Reference: 'https://github.com/JuanitoFatas/fast-ruby#stringgsub-vs-stringtr-code'
Enabled: false
# Rails
Rails/ActionFilter:
Description: 'Enforces consistent use of action filter methods.'
Enabled: false
Rails/Date:
Description: >-
Checks the correct usage of date aware methods,
such as Date.today, Date.current etc.
Enabled: false
Rails/FindBy:
Description: 'Prefer find_by over where.first.'
Enabled: false
Rails/FindEach:
Description: 'Prefer all.find_each over all.find.'
Enabled: false
Rails/HasAndBelongsToMany:
Description: 'Prefer has_many :through to has_and_belongs_to_many.'
Enabled: false
Rails/Output:
Description: 'Checks for calls to puts, print, etc.'
Enabled: false
Rails/ReadWriteAttribute:
Description: >-
Checks for read_attribute(:attr) and
write_attribute(:attr, val).
Enabled: false
Rails/ScopeArgs:
Description: 'Checks the arguments of ActiveRecord scopes.'
Enabled: false
Rails/TimeZone:
Description: 'Checks the correct usage of time zone aware methods.'
StyleGuide: 'https://github.com/bbatsov/rails-style-guide#time'
Reference: 'http://danilenko.org/2012/7/6/rails_timezones'
Enabled: false
Rails/Validation:
Description: 'Use validates :attribute, hash of validations.'
Enabled: false