early/ts/early.child.ts

import 'typings-global'
import chalk = require('chalk')
import readline = require('readline')
let rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
})

let moduleName: string
let loaderLength: number
let frameCounter: number = 0

let makeFrame = (): string => {
    let resultString: string = `[${chalk.green('/'.repeat(frameCounter))}${' '.repeat(loaderLength - frameCounter)}] starting ${moduleName}`
    if (frameCounter === loaderLength) {
        frameCounter = 0
    } else {
        frameCounter++
    }
    return resultString
}

let logEarlyAbort = false
let logEarly = () => {
    if (!logEarlyAbort) {
        rl.write(null, { ctrl: true, name: 'u' })
        rl.write(makeFrame())
        setTimeout(function () {
            logEarly()
        }, 80)
    } else {
        readline.clearLine(process.stdout,0)
        process.exit(0)
    }
}

let start = function (moduleNameArg: string = '', loaderLengthArg: string = '10') {
    moduleName = moduleNameArg
    loaderLength = parseInt(loaderLengthArg)
    logEarly()
}

process.on('SIGINT', () => {
    logEarlyAbort = true
})

start()