node.js - 将文件名推送到数组，然后将它们写入文本文件

Question

好的，所以我制作了一个小的 nodejs FTP 上传器，它可以上传我存储在本地目录中的文件并将它们传输到我的网络服务器。

上传文件后，我试图让它在一个recent.txt文件中附加信息，该文件包括 web url 和上传到该 url 的文件。

但是我在尝试.push();将文件名放入dirFiles数组时遇到了麻烦。

const fs = require('fs');
const ftp = require("basic-ftp")
const open = require('open')
const path = require('path');
var ncp = require("copy-paste");


//random string for url gen function
function rand(length) {
    var result = '';
    var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
    var charactersLength = characters.length;
    for (var i = 0; i < length; i++) {
        result += characters.charAt(Math.floor(Math.random() *
            charactersLength));
    }
    return result;
}


//the actual upload
async function Upload() {
    const client = new ftp.Client()
    client.ftp.verbose = true
    try {
        await client.access({
            host:
            user: 
            password: 
            port: 
        })
        client.trackProgress(info => {
            console.log("File", info.name)
            console.log("Type", info.type)
            console.log("Transferred", info.bytes)
            console.log("Transferred Overall", info.bytesOverall)
        })


        client.trackProgress(info => console.log(info.bytesOverall))

        //needed variables for shit
        var rand_string = rand(5); //can change this from rand to a previous upload folder
        var share_url = `https://molex.cloud/${rand_string}`;
        let uploadDir = `/HOSTED_WEBSITES/molexCloud/.sh/${rand_string}/`;
        const localDir = '_upload_these/';
        const recent = "recent.txt"


        await client.ensureDir(uploadDir)
        await client.uploadFromDir(localDir, uploadDir)
        client.trackProgress()

        //copy share url to clipboard
        ncp.copy(share_url, function() {
            open(share_url);
        })


        // formatting for the recent.txt
        let date_ob = new Date();
        let date = ("0" + date_ob.getDate()).slice(-2);
        let month = ("0" + (date_ob.getMonth() + 1)).slice(-2);
        let year = date_ob.getFullYear();
        let hours = date_ob.getHours();
        let minutes = date_ob.getMinutes();
        //Array to store filenames
        var dirFiles = [];
        //scan local dir to add filenames to dirFiles array
        fs.readdirSync(localDir, function(err, files) {
            if (err) {
                console.error(err);
                return;
            }
            //push to array in foreach
            files.forEach(function(file) {
                dirFiles.push(file);
                console.log(`PUSHING: ${file}`);
            });
        });
        //seperators, date, and time
        var _u = `__________________________________________________________`;
        var _d = `..........................................................`;
        var _t = `On ${month}-${date}-${year} at ${hours}:${minutes}`;


        //format to store url in recent.txt
        var linkFormat = `${_u}\n\n  ${share_url}\n${_d}\n  ${dirFiles}\n${_d}\n  ${_t}\n${_u}\n>\n`;
        // EXAMPLE:
        //  __________________________________________________________
        //
        //    https://molex.cloud/aB123
        //  ..........................................................
        //    test.txt
        //    test.png
        //  ..........................................................
        //    On MM-DD-YYYY at HH:MM
        //  __________________________________________________________
        //  >
        //

        try {
            //check if recent.txt exists
            if (fs.existsSync(recent)) {
                //append recent.txt
                fs.appendFileSync(recent, linkFormat);
                console.log('\x1b[33m%s\x1b[0m', `Adding url to list .............. ${share_url}`);
            } else {
                //create and append
                fs.writeFileSync(recent, linkFormat, err => {
                    if (err) {
                        console.error(err);
                        return;
                    }
                    //recent.txt created and file written successfully
                    console.log('\x1b[33m%s\x1b[0m', `Creating recent upload list ..... ${recent}`);
                    console.log('\x1b[33m%s\x1b[0m', `Adding url to list .............. ${recent}`);
                })
            }
        } catch (err) {
            console.error(err);
        }

    } catch (err) {
        console.log(err);
    }

    //console info
    console.log('\n');
    console.log(`\x1b[36m%s\x1b[0m`, `Opening default web browser...`);
    console.log('\n');
    console.log('\x1b[36m%s\x1b[0m', 'Link copied to clipboard...');
    console.log('\n');
    console.log('\x1b[32m%s\x1b[0m', `Shareable Link:`);
    console.log(`\x1b[30m\x1b[42m\x1b[4m%s\x1b[0m`, `${share_url}`);
    console.log('\n');
    console.log('\x1b[32m%s\x1b[0m', `Type \x1b[35m'links'\x1b[32m in the terminal for a list of recent uploads.\x1b[0m`);

    client.close();
}



Upload();

这是当前显示方式的屏幕截图（无文件名）

标签： node.jsarraysfor-loopforeachfs

Answer 1

抱歉，我仍在学习整个异步、等待、同步和范围。我仍在尝试在同步 FS 方法上使用回调函数。

//scan local dir to add filenames to dirFiles array
var files = fs.readdirSync(localDir);

//push to array in foreach
files.forEach(function(file) {
    dirFiles.push(file);
    console.log(`PUSHING: ${file}`);
});

// create a string with all of the dirFiles elements, split by newline
var fileString = dirFiles.join('\n');