chalk/chalk.js

'use strict';
var ansi = require('ansi-styles');
var stripAnsi = require('strip-ansi');
var hasColor = require('has-color');
var defineProps = Object.defineProperties;

ansi.grey = ansi.gray;

var styles = (function () {
	var ret = {};

	Object.keys(ansi).forEach(function (key) {
		ret[key] = {
			get: function () {
				this._styles.push(key);
				return this;
			}
		};
	});

	return ret;
})();

var chalk = module.exports = defineProps({}, init());

function init() {
	var ret = {};

	Object.keys(styles).forEach(function (name) {
		ret[name] = {
			get: function () {
				var obj = defineProps(function self() {
					var str = [].slice.call(arguments).join(' ');

					if (!chalk.enabled) {
						return str;
					}

					return self._styles.reduce(function (str, name) {
						var code = ansi[name];
						return str ? code.open + str + code.close : '';
					}, str);
				}, styles);

				obj._styles = [];

				return obj[name];
			}
		}
	});

	return ret;
}

chalk.styles = ansi;
chalk.stripColor = stripAnsi;
chalk.supportsColor = hasColor;

// detect mode if not set manually
if (chalk.enabled === undefined) {
	chalk.enabled = chalk.supportsColor;
}