AllCops:
  # Exclude auto-generated files by Rails
  Exclude:
    - 'db/schema.rb'
    - 'node_modules/**/*'
    - 'vendor/bundle/**/*'

# ABC size 20 is pretty well-done actually.
# For a reference, RuboCop itself configures this value as 17.
Metrics/AbcSize:
  Max: 20

# LineLength 80 comes from restrictions in good old days.
Metrics/LineLength:
  Max: 160

# If all member of the team is Japanese, writing comments in Japanese
# makes sense.
Style/AsciiComments:
  Enabled: false

# Double negation is a famous Ruby idiom,
# why not using it with confidence?
Style/DoubleNegation:
  Enabled: false

# No particular reason to prefer array style,
# two different styles suit in different situations.
Style/SymbolArray:
  Enabled: false

Style/WordArray:
  Enabled: false