.sass-lint.yml

# Frost SASS linting config
# v1.0.0
options:
  formatter: stylish

  # This file already includes the default rules to be more explicit
  merge-default-rules: false

files:
  include: '+(addon|app|tests)/**/styles/**/*.s+(a|c)ss'
  ignore:
    - '**/dummy/app/styles//**/*.s+(a|c)ss'
    - '**/_normalize.scss'
    - 'tests/cli/fixtures/**/*.s+(a|c)ss'

# Documentation on all rules available here: https://github.com/sasstools/sass-lint/blob/master/docs/rules
# 0 - disabled
# 1 - warning
# 2 - error
rules:


  # =======================================================
  # Extends
  # =======================================================

  # enforce that extends should be written before mixins in a ruleset.
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/extends-before-mixins.md
  extends-before-mixins: 2

  # enforce that extends should be written before declarations in a ruleset
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/extends-before-declarations.md
  extends-before-declarations: 2

  # enforce whether extends should only include placeholder selectors
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/placeholder-in-extend.md
  placeholder-in-extend: 2


  # =======================================================
  # Mixins
  # =======================================================

  # enforce that mixins should be written before declarations in a ruleset
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/mixins-before-declarations.md
  mixins-before-declarations: 2


  # =======================================================
  # Line Spacing
  # =======================================================

  # enforce that new declarations must begin on new lines
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/one-declaration-per-line.md
  one-declaration-per-line: 2

  # will enforce whether or not nested blocks should include a space between the last non-comment declaration or not
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/empty-line-between-blocks.md
  empty-line-between-blocks: 2

  # enforce whether selectors should be placed on a new line
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/single-line-per-selector.md
  single-line-per-selector: 2


  # =======================================================
  # Disallows
  # =======================================================

  # enforce the use of hexadecimal color values rather than literals
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-color-keywords.md
  no-color-keywords: 2

  # disallow the use of color literals and basic color functions in any declarations other than variables or maps/lists
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-color-literals.md
  no-color-literals: 2

  # enforce the use of Sass single-line comments and disallow CSS comments.
  # Bang comments (/*! */, will be printed even in minified mode) are still allowed
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-css-comments.md
  no-css-comments: 2

  # enforce that @debug statements are not allowed to be used
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-debug.md
  no-debug: 2

  # enforce that duplicate properties are not allowed within the same block
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-duplicate-properties.md
  no-duplicate-properties: 2

  # enforce that rulesets are not empty
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-empty-rulesets.md
  no-empty-rulesets: 2

  # enforce that extends are not allowed to be used
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-extends.md
  no-extends: 0

  # enforce that ID selectors are not allowed to be used
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-ids.md
  no-ids: 2

  # enforce that important declarations are not allowed to be used
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-important.md
  no-important: 2

  # enforce that only valid of hexadecimal values are written
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-invalid-hex.md
  no-invalid-hex: 2

  # enforce that selectors aren't repeated and that their properties are merged.
  # You may also pass a whitelist of selectors you wish to exclude from merging
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-mergeable-selectors.md
  no-mergeable-selectors: 2

  # enforce the correct spelling of CSS properties and prevent the use of unknown CSS properties
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-misspelled-properties.md
  no-misspelled-properties: 2

  # enforce that selectors are not allowed to have qualifying elements
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-qualifying-elements.md
  no-qualifying-elements: 2

  # enforce that trailing whitespace is not allowed
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-trailing-whitespace.md
  no-trailing-whitespace: 2

  # enforce that trailing zeros are not allowed
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-trailing-zero.md
  no-trailing-zero: 2

  # enforce whether the keyword all can be used with the transition or transition-property property
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-transition-all.md
  no-transition-all: 2

  # enforce that protocols and domains are not used within urls
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-url-protocols.md
  no-url-protocols: 2

  # enforce that vendor prefixes are not allowed to be used
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-vendor-prefixes.md
  no-vendor-prefixes: 2

  # enforce that @warn statements are not allowed to be used
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/no-warn.md
  no-warn: 2

  # disallow the use of units not specified in global or per-property.
  # Units specified per-property will override the global units for that property
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/property-units.md
  property-units: 0


  # =======================================================
  # Nesting
  # =======================================================

  # enforce the nesting of attributes
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/force-attribute-nesting.md
  force-attribute-nesting: 2

  # enforce the nesting of elements
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/force-element-nesting.md
  force-element-nesting: 2

  # enforce the nesting of pseudo elements/classes
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/force-pseudo-nesting.md
  force-pseudo-nesting: 2


  # =======================================================
  # Name Formats
  # =======================================================

  # enforce a convention for class names
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/class-name-format.md
  class-name-format: 2

  # enforce a convention for function names
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/function-name-format.md
  function-name-format: 2

  # enforce a convention for ids
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/id-name-format.md
  id-name-format: 0

  # enforce a convention for mixin names
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/mixin-name-format.md
  mixin-name-format: 2

  # enforce a convention for placeholder names
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/placeholder-name-format.md
  placeholder-name-format: 2

  # enforce a convention for variable names
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/variable-name-format.md
  variable-name-format: 2


  # =======================================================
  # Style Guide
  # =======================================================

  # enforce how many elements a BEM selector can contain
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/bem-depth.md
  bem-depth: 0

  # enforce whether one should use 0 or none when specifying a zero border value
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/border-zero.md
  border-zero: 2

  # enforce the use of the chosen brace style
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/brace-style.md
  brace-style: 2

  # enforce whether or not @import paths should have leading underscores and/or filename extensions
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/clean-import-paths.md
  clean-import-paths: 2

  # enforce whether or not parenthesis should be included if no arguments are defined or used,
  # when declaring or invoking a mixin
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/empty-args.md
  empty-args: 2

  # enforce the length of hexadecimal values (defaults to short)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/hex-length.md
  hex-length: 2

  # enforce the case of hexadecimal values
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/hex-notation.md
  hex-notation: 2

  # enforce an indentation size (in spaces) and ensure that tabs and spaces are not mixed
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/indentation.md
  indentation: 2

  # enforce whether or not decimal numbers should include a leading zero
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/leading-zero.md
  leading-zero: 2

  # enforce how deeply a selector can be nested (defaults to 2)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/nesting-depth.md
  nesting-depth:
    - 2
    -
      max-depth: 3

  # enforce the order in which declarations are written (default alphabetical)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/property-sort-order.md
  property-sort-order:
    - 2
    -
      order: smacss

  # enforce whether single quotes ('') or double quotes ("") should be used for all strings (defaults single)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/quotes.md
  quotes: 2

  # enforce that values in their shorthand form are as concise as specified
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/shorthand-values.md
  shorthand-values: 2

  # enforce that URLs are wrapped in quotes
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/url-quotes.md
  url-quotes: 2

  # enforce the use of variables for the values of specified properties.
  # There are no properties by default, except for reserved words listed below which are always whitelisted:
  # [ inherit, initial, transparent, none, currentColor ]
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/variable-for-property.md
  variable-for-property: 2

  # enforce whether or not values of 0 used for length should be unitless (defaults to unitless)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/zero-unit.md
  zero-unit: 2


  # =======================================================
  # Inner Spacing
  # =======================================================

  # enforce whether or not a space should be included after a comma (,) (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-after-comma.md
  space-after-comma: 2

  # enforce whether or not a space should be included before a colon (:) (default false)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-before-colon.md
  space-before-colon: 2

  # enforce whether or not a space should be included after a colon (:) (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-after-colon.md
  space-after-colon: 2

  # enforce whether or not a space should be included before a brace ({) (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-before-brace.md
  space-before-brace: 2

  # enforce whether or not a space should be included before a bang (!) (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-before-bang.md
  space-before-bang: 2

  # enforce whether or not a space should be included after a bang (!) (default false)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-after-bang.md
  space-after-bang: 2

  # enforce whether or not a space should be included before the first item and after the last item
  # inside parenthesis (()) (default false)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-between-parens.md
  space-between-parens: 2

  # enforce whether or not a single space should be included before and after the following operators:
  # +, -, /, *, %, <, > ==, !=, <= and >= (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/space-around-operator.md
  space-around-operator: 2


  # =======================================================
  # Final Items
  # =======================================================

  # enforce whether the last declaration in a block should include a semicolon (;) or not (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/trailing-semicolon.md
  trailing-semicolon: 2

  # enforce whether or not files should end with a newline (default true)
  # https://github.com/sasstools/sass-lint/blob/master/docs/rules/final-newline.md
  final-newline: 2