style lint

.stylelintrc.json

{
	"rules": {
		"color-no-invalid-hex": true,
		"declaration-block-no-duplicate-properties": [
			true,
			{
				"ignore": [
					"consecutive-duplicates-with-different-values"
				]
			}
		],
		"function-calc-no-unspaced-operator": true,
		"no-extra-semicolons": true,
		"no-invalid-double-slash-comments": true,
		"property-no-unknown": true,
		"selector-pseudo-class-no-unknown": true,
		"selector-pseudo-element-no-unknown": 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-newline-after": "always",
		"block-closing-brace-newline-before": "always-multi-line",
		"block-closing-brace-space-before": "always-single-line",
		"block-opening-brace-space-after": "always-single-line",
		"block-opening-brace-space-before": "always",
		"color-hex-case": "lower",
		"color-hex-length": "short",
		"comment-whitespace-inside": "always",
		"declaration-bang-space-after": "never",
		"declaration-bang-space-before": "always",
		"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": 5,
		"declaration-block-trailing-semicolon": "always",
		"declaration-colon-newline-after": "always-multi-line",
		"declaration-colon-space-after": "always-single-line",
		"declaration-colon-space-before": "never",
		"function-comma-newline-after": "always-multi-line",
		"function-comma-space-after": "never",
		"function-comma-space-before": "never",
		"function-name-case": "lower",
		"function-parentheses-newline-inside": "always-multi-line",
		"function-parentheses-space-inside": "never-single-line",
		"function-whitespace-after": "always",
		"length-zero-no-unit": true,
		"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",
		"number-leading-zero": "never",
		"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-newline-after": "always-multi-line",
		"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-type-case": "lower",
		"unit-case": "lower",
		"value-list-comma-newline-after": "always-multi-line",
		"value-list-comma-space-after": "never-single-line",
		"value-list-comma-space-before": "never",
		"value-list-max-empty-lines": 0
	}
}

_ignore.scss

/* stylelint-disable */

.some {}

gulpfile.js

var gulp = require('gulp');
var postcss = require('gulp-postcss');
var reporter = require('postcss-reporter');
var syntax_scss = require('postcss-scss');
var stylelint = require('stylelint');

gulp.task("scss-lint", function () {

	var processors = [
		stylelint(require('./.stylelintrc.json')),
		reporter({
			clearMessages: true,
			throwError: true
		})
	];

	return gulp.src([
		'./src/scss/*.scss',
		'./src/scss/**/*.scss',
		'!./src/scss/**/_com.scss',
		'!./src/scss/**/_reset.scss',
		'!./src/scss/vendors/**'
	])
		.pipe(postcss(processors, { syntax: syntax_scss }));
});