index.js

'use strict';

module.exports = {
  severity: 'warning',
  plugins: ['stylelint-performance-animation'],
  rules: {
    'plugin/no-low-performance-animation': [
      true,
      {
        ignore: [
          'color',
          'background-color',
          'background',
          'border-color',
          'fill',
          'stroke',
          'stroke-dashoffset',
          'clip-path'
        ]
      }
    ],
    'at-rule-allowed-list': [
      'extend',
      'keyframes',
      'import',
      'include',
      'font-face',
      'mixin',
      'function',
      'return',
      'if',
      'else',
      'for',
      'each',
      'media',
      'page',
      'content',
      'use',
      'error',
      'warn',
      'at-root',
      'supports'
    ],
    'at-rule-no-unknown': [
      true,
      {
        ignoreAtRules: [
          'function',
          'if',
          'else',
          'for',
          'each',
          'include',
          'mixin',
          'return',
          'use',
          'error',
          'extend',
          'content',
          'warn',
          'at-root',
          'supports'
        ]
      }
    ],
    'color-no-invalid-hex': true,
    'comment-no-empty': true,
    'declaration-block-no-duplicate-properties': [
      true,
      {
        ignore: ['consecutive-duplicates-with-different-values']
      }
    ],
    'declaration-block-no-redundant-longhand-properties': [
      true,
      {
        ignoreShorthands: ['grid-template']
      }
    ],
    'declaration-block-no-shorthand-property-overrides': true,
    'font-family-no-duplicate-names': true,
    'function-calc-no-unspaced-operator': true,
    'function-linear-gradient-no-nonstandard-direction': true,
    'keyframe-declaration-no-important': true,
    'media-feature-name-no-unknown': true,
    'no-empty-source': true,
    'no-extra-semicolons': true,
    'no-invalid-double-slash-comments': true,
    'property-no-unknown': [
      true,
      {
        ignoreProperties: ['user-drag', 'composes']
      }
    ],
    'selector-pseudo-class-no-unknown': [
      true,
      {
        ignorePseudoClasses: ['user-drag', 'global']
      }
    ],
    'named-grid-areas-no-invalid': true,
    'selector-pseudo-element-no-unknown': true,
    'selector-type-no-unknown': true,
    'shorthand-property-no-redundant-values': true,
    'string-no-newline': true,
    'unit-no-unknown': true,
    'at-rule-name-case': 'lower',
    'at-rule-name-space-after': 'always-single-line',
    'at-rule-semicolon-newline-after': 'always',
    'block-closing-brace-empty-line-before': 'never',
    'block-closing-brace-newline-after': [
      'always',
      {
        ignoreAtRules: ['if', 'else']
      }
    ],
    'block-closing-brace-newline-before': 'always-multi-line',
    'block-closing-brace-space-before': 'always-single-line',
    'block-opening-brace-newline-after': 'always-multi-line',
    'block-opening-brace-space-after': 'always-single-line',
    'block-opening-brace-space-before': 'always',
    'color-hex-case': 'lower',
    'color-hex-length': 'short',
    'comment-empty-line-before': [
      'always',
      {
        except: ['first-nested'],
        ignore: ['stylelint-commands']
      }
    ],
    'comment-whitespace-inside': 'always',
    'custom-property-empty-line-before': [
      'always',
      {
        except: ['after-custom-property', 'first-nested'],
        ignore: ['after-comment', 'inside-single-line-block']
      }
    ],
    'declaration-bang-space-after': 'never',
    'declaration-block-semicolon-newline-after': 'always-multi-line',
    'declaration-block-semicolon-space-after': 'always-single-line',
    'declaration-block-semicolon-space-before': 'never',
    'declaration-block-single-line-max-declarations': 1,
    'declaration-block-trailing-semicolon': 'always',
    'declaration-colon-space-after': 'always-single-line',
    'declaration-colon-space-before': 'never',
    'function-comma-newline-after': 'always-multi-line',
    'function-comma-space-after': 'always-single-line',
    'function-comma-space-before': 'never',
    'function-max-empty-lines': 0,
    'function-name-case': 'lower',
    'function-parentheses-newline-inside': 'always-multi-line',
    'function-parentheses-space-inside': 'never-single-line',
    'function-whitespace-after': 'always',
    indentation: 2,
    'length-zero-no-unit': true,
    'max-empty-lines': 1,
    'media-feature-colon-space-after': 'always',
    'media-feature-colon-space-before': 'never',
    'media-feature-name-case': 'lower',
    'media-feature-parentheses-space-inside': 'never',
    'media-feature-range-operator-space-after': 'always',
    'media-feature-range-operator-space-before': 'always',
    'media-query-list-comma-newline-after': 'always-multi-line',
    'media-query-list-comma-space-after': 'always-single-line',
    'media-query-list-comma-space-before': 'never',
    'no-eol-whitespace': true,
    'no-missing-end-of-source-newline': true,
    'number-leading-zero': 'always',
    'number-no-trailing-zeros': true,
    'property-case': 'lower',
    'selector-attribute-brackets-space-inside': 'never',
    'selector-attribute-operator-space-after': 'never',
    'selector-attribute-operator-space-before': 'never',
    'selector-combinator-space-after': 'always',
    'selector-combinator-space-before': 'always',
    'selector-descendant-combinator-no-non-space': true,
    'selector-list-comma-space-before': 'never',
    'selector-max-empty-lines': 0,
    'selector-pseudo-class-case': 'lower',
    'selector-pseudo-class-parentheses-space-inside': 'never',
    'selector-pseudo-element-case': 'lower',
    'selector-pseudo-element-colon-notation': 'double',
    'selector-type-case': 'lower',
    'unit-case': 'lower',
    'value-list-comma-space-after': 'always-single-line',
    'value-list-comma-space-before': 'never',
    'value-list-max-empty-lines': 0
  }
};