wfe-cli/lib/logger.js

Front end scaffolding tool

const chalk = require('chalk')
const format = require('util').format
const Package = require('../package.json')
/**
 * Prefix.
 */

const prefix = Package.name
const sep = chalk.gray('·')

/**
 * Log a `message` to the console.
 *
 * @param {String} message
 */

exports.log = function(...args) {
    const msg = format.apply(format, args)
    console.log()
    console.log(chalk.white(prefix), sep, msg)
}

/**
 * Log an error `message` to the console and exit.
 *
 * @param {String} message
 */

exports.fatal = function(...args) {
    if (args[0] instanceof Error) args[0] = args[0].message.trim()
    const msg = format.apply(format, args)
    console.error(chalk.red(prefix), sep, msg)
    process.exit(1)
}

/**
 * Log a success `message` to the console and exit.
 *
 * @param {String} message
 */

exports.success = function(...args) {
    const msg = format.apply(format, args)
    console.log(chalk.white(prefix), sep, msg)
}