rails/.rubocop.yml

AllCops:
  TargetRubyVersion: 2.3
  # RuboCop has a bunch of cops enabled by default. This setting tells RuboCop
  # to ignore them, so only the ones explictily set in this file are enabled.
  DisabledByDefault: true
  Exclude:
    - '**/templates/**/*'
    - '**/vendor/**/*'

# Prefer &&/|| over and/or.
Style/AndOr:
  Enabled: true

# Do not use braces for hash literals when they are the last argument of a
# method call.
Style/BracesAroundHashParameters:
  Enabled: true

# Align `when` with `case`.
Style/CaseIndentation:
  Enabled: true

# In a regular class definition, no empty lines around the body.
Style/EmptyLinesAroundClassBody:
  Enabled: true

# In a regular module definition, no empty lines around the body.
Style/EmptyLinesAroundModuleBody:
  Enabled: true

# Use Ruby >= 1.9 syntax for hashes. Prefer { a: :b } over { :a => :b }.
Style/HashSyntax:
  Enabled: true

# Method definitions after `private` or `protected` isolated calls need one
# extra level of indentation.
Style/IndentationConsistency:
  Enabled: true
  EnforcedStyle: rails

# Two spaces, no tabs (for indentation).
Style/IndentationWidth:
  Enabled: true

# Defining a method with parameters needs parentheses.
Style/MethodDefParentheses:
  Enabled: true

# Check quotes usage according to lint rule below.
Style/StringLiterals:
  Enabled: true
  EnforcedStyle: double_quotes

# Detect hard tabs, no hard tabs.
Style/Tab:
  Enabled: true

# Blank lines should not have any spaces.
Style/TrailingBlankLines:
  Enabled: true

# No trailing whitespace.
Style/TrailingWhitespace:
  Enabled: true

# Use quotes for string literals when they are enough.
Style/UnneededPercentQ:
  Enabled: true

# Align `end` with the matching keyword or starting expression except for
# assignments, where it should be aligned with the LHS.
Lint/EndAlignment:
  Enabled: true
  AlignWith: variable

# Use my_method(my_arg) not my_method( my_arg ) or my_method my_arg.
Lint/RequireParentheses:
  Enabled: true