colorprint/lib/msg/decorate_msg.js

Print ansi-colored message to stdout/stderr.

/**
 * Decorate message with ansi color.
 * @see https://www.npmjs.com/package/cli-color
 * @memberof module:colorprint/lib
 * @function decorateMsg
 * @param {string} msg - Messages to decorateMsg.
 * @param {string} color - Name of color.
 * @returns {string}  - Decorated message.
 */

"use strict";

const cliColor = require("cli-color");
const supportsColor = require("supports-color");

/** @lends decorateMsg */
function decorateMsg(msg, color) {
  if (!color) {
    return msg;
  }
  if (!supportsColor.stdout) {
    return msg;
  }
  let decorator = color && cliColor[color];
  if (!decorator) {
    throw new Error("Unknown color: " + color);
  }
  return decorator(msg);
}

module.exports = decorateMsg;