Some rubocop settings

.rubocop.yml

SpaceAroundEqualsInParameterDefault:
  Enabled: false

Metrics/LineLength:
  Max: 140

Metrics/MethodLength:
  Max: 20

Metrics/AbcSize:
  Max: 21

Metrics/ClassLength:
  Max: 150

Metrics/CyclomaticComplexity:
  Max: 14

Metrics/PerceivedComplexity:
  Max: 10

Style/AsciiComments:
  Enabled: false

CaseIndentation:
  # Valid values are: case, end
  IndentWhenRelativeTo: end
  IndentOneStep: true

AllCops:
  TargetRubyVersion: 2.3