@efficientcss/stylelint-config-ecss/plugins/ecss-flex-shorthand.js

Linting rules for EfficientCSS

import stylelint from 'stylelint';
import postcss from "postcss";
import nested from "postcss-nested";

const {
	createPlugin,
	utils: { report, ruleMessages }
} = stylelint;

const ruleName = 'ecss/flex-shorthand';
const messages = ruleMessages(ruleName, {
	expected: 'Prefer long form flex properties for better clarity.',
});

const meta = {
	url: ''
}

const preprocessCSS = async (css) => {
	const result = await postcss([nested]).process(css, { from: undefined });
	return result.root;
};;

const ruleFunction = (primaryOption, secondaryOption, context) => async (postcssRoot, postcssResult) => {
	const processedRoot = await preprocessCSS(postcssRoot.toString());
	processedRoot.walkRules((rule) => {
		rule.walkDecls('flex', (decl) => {
			report({
				message: messages.expected,
				messageArgs: [rule.selector, decl],
				node: decl,
				result: postcssResult,
				ruleName,
			});
		});
	});
};

ruleFunction.ruleName = ruleName;
ruleFunction.messages = messages;
ruleFunction.meta = meta;

export default createPlugin(ruleName, ruleFunction);