stylelint/lib/rules/property-no-vendor-prefix/index.js

A mighty, modern CSS linter.

'use strict';

const isAutoprefixable = require('../../utils/isAutoprefixable');
const optionsMatches = require('../../utils/optionsMatches');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const vendor = require('../../utils/vendor');
const { isRegExp, isString } = require('../../utils/validateTypes');

const ruleName = 'property-no-vendor-prefix';

const messages = ruleMessages(ruleName, {
	rejected: (property) => `Unexpected vendor-prefix "${property}"`,
});

const meta = {
	url: 'https://stylelint.io/user-guide/rules/list/property-no-vendor-prefix',
};

/** @type {import('stylelint').Rule} */
const rule = (primary, secondaryOptions, context) => {
	return (root, result) => {
		const validOptions = validateOptions(
			result,
			ruleName,
			{ actual: primary },
			{
				optional: true,
				actual: secondaryOptions,
				possible: {
					ignoreProperties: [isString, isRegExp],
				},
			},
		);

		if (!validOptions) {
			return;
		}

		root.walkDecls((decl) => {
			const prop = decl.prop;
			const unprefixedProp = vendor.unprefixed(prop);

			//return early if property is to be ignored
			if (optionsMatches(secondaryOptions, 'ignoreProperties', unprefixedProp)) {
				return;
			}

			// Make sure there's a vendor prefix,
			// but this isn't a custom property

			if (prop[0] !== '-' || prop[1] === '-') {
				return;
			}

			if (!isAutoprefixable.property(prop)) {
				return;
			}

			if (context.fix) {
				decl.prop = isAutoprefixable.unprefix(decl.prop);

				return;
			}

			report({
				message: messages.rejected(prop),
				node: decl,
				result,
				ruleName,
			});
		});
	};
};

rule.ruleName = ruleName;
rule.messages = messages;
rule.meta = meta;
module.exports = rule;