fake-file-generator/src/utils.js

File generator at specific type and size

class Utils {
    static getDebugModuleOrMock(debugKey) {
        return process.env.DEBUG ? require('debug')(debugKey) : function() {};
    }
    static megabyteToByte(megabytes) {
        return megabytes * 1e+6;
    }
    static bytesToMegabytes(bytes) {
        return bytes / 1e-6;
    }
    static formatNumber(num) {
        return num.toString().replace(/(\d)(?=(\d{3})+(?!\d))/g, '$1,');
    }

    static getProgramArg(args, extended, short) {
        const argIndex = args.findIndex((arg) => arg === extended || arg === short);
        let argValue = '';
        if (argIndex !== -1) {
            argValue = args[argIndex+1];
        }
        return argValue;
    }

    static readInputLine() {
        return new Promise((resolve, reject) => {
            process.stdin.on('data', (data) => resolve(data.toString()))
            process.stdin.on('error', reject)
        })
    }
}

module.exports = Utils;