nodejs利用readline提示输入内容实例代码

目录

• 前言
• 1. bat执行js
• 2. 终端提示输入版本号、执行打包命令
• 3. 修改版本号文件
• 总结

@echo off
set curpath=%~dp0
%curpath%nodejs\node.exe %curpath%buildVersion.js
pause

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
});
rl.question(`请输入新版本号： `, (name) => {
});

// 获取版本信息，具体实现在第三步
var versionInfo;
const versionInfoUrl = './src/config/version/version.js';
function getVersion() {
    var buildVersion = "";
    try {
        versionInfo = require(versionInfoUrl);
        buildVersion = versionInfo.version;
    } catch (error) {
    }
    return buildVersion;
}

const chalk = require('chalk');  // 引入颜色库
rl.question(`${chalk.cyan("当前版本号： ")}${chalk.bold.red(getVersion())} \n请输入新版本号： `, (name) => {
    !name && (name=versionInfo?versionInfo.version:"");
    console.log(`${chalk.cyan("新版本号是： ")}${chalk.bold.yellow(name)}`);

// 写入默认值
rl.write("Version ")

// 解析bat运行传入的参数
var minimist = require('minimist');
var argv = minimist(process.argv.slice(2), {
    string: ["name"]
});
const child_process = require('child_process');
rl.question(`${chalk.cyan("当前版本号： ")}${chalk.bold.red(getVersion())} \n请输入新版本号： `, (name) => {
    !name && (name=versionInfo?versionInfo.version:"");
    console.log(`${chalk.cyan("新版本号是： ")}${chalk.bold.yellow(name)}`);
    // 记录新版本号
    changeVersion(name);
    var buildType = argv.buildType || "build"  // 命令为gulp中配置好的
    var gulpCmd = `gulp ${buildType} --buildVersion "${name}" --color --f ${__dirname}/gulpfile.js`;
    console.log(gulpCmd);
    let spawnProcess = child_process.spawn(gulpCmd, [], {
        shell: true
    });
    spawnProcess.stdout.on('data', (data) => {
        console.log(`${data.toString()}`);
    });
    spawnProcess.stderr.on('data', (data) => {
        console.log(`stderror: ${data}`);
    });
    spawnProcess.on('close', (code) => {
        if (code !== 0) {
            console.log(`close: $[code]`);
        }
    });
    spawnProcess.on('exit', (code) => {
        // console.log(`exit: ${code.toString()}`);
        console.log(chalk.bold.yellow("-----------------  完成  --------------------"));
    });
});
function changeVersion(params) {
    if (versionInfo && versionInfo.changeVersion) {
        versionInfo.changeVersion(params);
    }
}

let exec = require('child_process').execSync;
exec('vue-cli-service --mode dev build', {
    stdio: 'inherit'
});

var VersionInfoJson;
// 考虑到可能会在html中引用，做了区分
if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
    getVersionInfo(true);
} else {
    if (typeof define === 'function' && define.amd) {
        getVersionInfo(false);
    } else {
        getVersionInfoLocal();
    }
}
function getVersionInfo(isModule) {
    try {
        VersionInfoJson = require("./version.json");
    } catch (error) {
        VersionInfoJson = {};
    }
    VersionInfoJson.buildTime = getNowFormatDate();
    VersionInfoJson.changeVersion = changeVersion;
    if (isModule) {
        module.exports = VersionInfoJson;
    }else{
        define([], function () {
            return VersionInfoJson;
        });
    }
}
async function getVersionInfoLocal() {
    try {
        VersionInfoJson = await getVersionJson();
    } catch (error) {
        VersionInfoJson = {};
    }
    VersionInfoJson.buildTime = getNowFormatDate();
    window.VersionInfo = VersionInfoJson;
}
function getVersionJson() {
    return new Promise((resolve, reject)=>{
        var request = new XMLHttpRequest();
        request.open("get", "config/version/version.json");
        request.send(null);
        request.onload = function () {
            if (request.status == 200) {
                var json = JSON.parse(request.responseText);
                resolve(json);
            }else{
                var json = {};
                resolve(json);
            }
        }
    });
}
function changeVersion(version) {
    var copyVersion = cloneObj(VersionInfoJson);
    copyVersion.version = version;
    if (copyVersion.hasOwnProperty("changeVersion")) {
        delete copyVersion["changeVersion"]
    }
    // console.log(copyVersion, __dirname, __filename)
    let fs = require('fs');
    fs.writeFile(__dirname + "/version.json", JSON.stringify(copyVersion), (err) => {
    });
}
// 1、用new obj.constructor ()构造函数新建一个空的对象，而不是使用{}或者[],这样可以保持原形链的继承；
// 2、用obj.hasOwnProperty(key)来判断属性是否来自原型链上，因为for..in..也会遍历其原型链上的可枚举属性。
// 3、上面的函数用到递归算法，在函数有名字，而且名字以后也不会变的情况下，这样定义没有问题。但问题是这个函数的执行与函数名 factorial 紧紧耦合在了一起。为了消除这种紧密耦合的现象，需要使用 arguments.callee。
function cloneObj(obj) {
    if (obj === null) return null
    if (typeof obj !== 'object') return obj;
    if (obj.constructor === Date) return new Date(obj);
    if (obj.constructor === RegExp) return new RegExp(obj);
    var newObj = new obj.constructor(); //保持继承链
    for (var key in obj) {
        if (obj.hasOwnProperty(key)) { //不遍历其原型链上的属性
            var val = obj[key];
            newObj[key] = typeof val === 'object' ? arguments.callee(val) : val; // 使用arguments.callee解除与函数名的耦合
        }
    }
    return newObj;
}
function getNowFormatDate() {
    var date = new Date();
    var seperator1 = "-"; // 年月日间隔
    var seperator2 = ":"; // 时分秒间隔
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate +
        " " + date.getHours() + seperator2 + date.getMinutes() +
        seperator2 + date.getSeconds();
    return currentdate;
}

var minimist = require('minimist');
var argv = minimist(process.argv.slice(2), {
    string: ["name"]
});
console.log(argv.buildVersion)