stylelint/lib/utils/ruleMessages.js

A mighty, modern CSS linter.

/* @flow */
'use strict';

/**
 * Given an object of violation messages, return another
 * that provides the same messages postfixed with the rule
 * that has been violated.
 *
 * @param {string} ruleName
 * @param {object} messages - Object whose keys are message identifiers
 *   and values are either message strings or functions that return message strings
 * @return {object} New message object, whose messages will be marked with the rule name
 */
module.exports = function(ruleName /*: string*/, messages /*: Object*/) /*: Object*/ {
	return Object.keys(messages).reduce((newMessages, messageId) => {
		const messageText = messages[messageId];

		if (typeof messageText === 'string') {
			newMessages[messageId] = `${messageText} (${ruleName})`;
		} else {
			newMessages[messageId] = function() {
				return `${messageText.apply(null, arguments)} (${ruleName})`;
			};
		}

		return newMessages;
	}, {});
};