Forked from DanielaValero/stylelint.config-airbnb.js
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September 26, 2017 07:08
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/** | |
* Default configuration to lint | |
* the airbnb css style-guide. | |
* This file is taken from a pull request to Airbnb/css repo | |
* which intends to create a default preset that can be used | |
* in the future. Until it is merged, we will have the config here. | |
* https://github.com/airbnb/css/pull/23 | |
* Add more rules: http://stylelint.io/user-guide/rules/ | |
* Also, to understand better who the rules are named: | |
* http://stylelint.io/user-guide/about-rules/ | |
* For an extended sample of config, check this out | |
* http://stylelint.io/user-guide/example-config/ | |
*/ | |
export default { | |
plugins: [ | |
'stylelint-scss', | |
'stylelint-selector-bem-pattern', | |
], | |
rules: { | |
/* ========================================================================== | |
Airbnb config | |
========================================================================== */ | |
// CSS formatting | |
'selector-no-id': true, | |
indentation: 2, | |
'selector-list-comma-newline-after': 'always', | |
'declaration-colon-space-after': 'always', | |
'declaration-colon-space-before': 'never', | |
'block-opening-brace-space-before': 'always', | |
'declaration-block-single-line-max-declarations': 1, | |
'rule-nested-empty-line-before': ['always', { | |
ignore: ['after-comment'], | |
}], | |
'rule-non-nested-empty-line-before': ['always', { | |
ignore: ['after-comment'], | |
}], | |
// Comments | |
'comment-empty-line-before': ['always', { | |
ignore: ['stylelint-commands'], | |
}], | |
// Bem | |
'plugin/selector-bem-pattern': { | |
componentName: '[A-Z]+', | |
componentSelectors: { | |
initial: '^\\.{componentName}(?:-[a-z]+)?$', | |
combined: '^\\.combined-{componentName}-[a-z]+$', | |
}, | |
utilitySelectors: '^\\.util-[a-z]+$', | |
}, | |
// Border | |
'declaration-property-value-blacklist': { | |
'/^border/': ['none'], | |
}, | |
// SASS | |
// All @includes after properties | |
// Nested selectors after properties | |
// Variables dash-dashed | |
// This regexp matches: | |
// $button-text-background-color--hover-hola | |
// regex under construction | |
// 'scss/dollar-variable-pattern': '\b[a-z]+(?:-)+(\b[a-z]+(?:-))*', | |
// forbid extend | |
'at-rule-blacklist': ['extend'], | |
// Nesting depth | |
'max-nesting-depth': 3, | |
/* ========================================================================== | |
Best practices | |
========================================================================== */ | |
// Specificity | |
// To learn more about this: | |
// http://csswizardry.com/2014/07/hacks-for-dealing-with-specificity/ | |
// "id,class,type", | |
// selector-max-specificity | |
'declaration-no-important': true, | |
'selector-max-compound-selectors': 3, | |
'selector-no-qualifying-type': true, | |
// Selectors | |
'no-duplicate-selectors': true, | |
// Blocks | |
'block-no-empty': true, | |
'at-rule-empty-line-before': [ | |
'always', { | |
// Allow mixins to have an empty line before | |
ignoreAtRules: ['import', 'first-nested'], | |
}], | |
// More styling rules for more consistency | |
'at-rule-name-case': 'lower', | |
// Colors | |
'color-hex-case': 'lower', | |
'color-hex-length': 'long', | |
'color-no-invalid-hex': true, | |
'no-indistinguishable-colors': true, | |
// strings | |
'string-quotes': 'single', | |
// Values | |
// Disallow vendor prefix, they are added by autoprefixer | |
'value-no-vendor-prefix': true, | |
'value-list-comma-space-after': 'always-single-line', | |
// Disallows margin: 1px 1px 1px 1px; | |
'shorthand-property-no-redundant-values': true, | |
// Comments | |
'comment-whitespace-inside': 'always', | |
// Functions | |
'function-comma-space-after': 'always-single-line', | |
'function-comma-space-before': 'never', | |
// Numbers | |
// unitless zero and no trailing zeros | |
'length-zero-no-unit': true, | |
'number-no-trailing-zeros': true, | |
// Syntax | |
'declaration-block-trailing-semicolon': 'always', | |
// Declaration blocks | |
'declaration-block-no-duplicate-properties': true, | |
// More on this one here: | |
// http://stylelint.io/user-guide/rules/declaration-block-no-ignored-properties/ | |
'declaration-block-no-ignored-properties': true, | |
// Require a reason before or after a stylelint disable | |
'stylelint-disable-reason': 'always-after', | |
// Prevents adding unnecesary Specificity or complicated sass stuff | |
'scss/selector-no-redundant-nesting-selector': true, | |
}, | |
}; |
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