use

1. Front and rear end separate items
2. After the front-end project is packaged, copy the corresponding packaged file (usually dist folder) to the server folder (usually public folder)

use

npm install
Copy the code

The command that

NPM run test: runs the copy command NPM run pmcopy: manages the copy of processes. (This command is not recommended.) NPM run build: directly runs the NPM run build in the VUE project for easy execution

For details about copy.js, see copy.js

Unresolved issues

After pM2 execution, some files in dist folder in VUE will need administrator permission to execute. Subsequent execution of NPM run build will report an error that access is not allowed, and pM2 needs to be killed before it can be removed. The cause has not been found

Here’s the code

copy.js

var fs = require('fs'),
    stat = fs.stat;
var chokidar = require('chokidar');

/* 05 * Copy all files in the directory including subdirectories 06 * @param{String} Directory to be copied 07 * @param{String} Copy to the specified directory 08 */
var copy = function (src, dst) {
    // Read all files/directories in the directory
    fs.readdir(src, function (err, paths) {
        if (err) {
            throw err;
        }

        paths.forEach(function (path) {
            var _src = src + '/' + path,
                _dst = dst + '/' + path,
                readable, writable;

            stat(_src, function (err, st) {
                if (err) {
                    throw err;
                }

                // Check whether it is a file
                if (st.isFile()) {
                    // Create a read stream
                    readable = fs.createReadStream(_src);
                    // Create a write stream
                    writable = fs.createWriteStream(_dst);
                    // Stream through a pipe
                    readable.pipe(writable);
                }
                // Call itself recursively if it is a directory
                else if(st.isDirectory()) { exists(_src, _dst, copy); }}); }); }); };// Check whether the directory exists before copying it. If the directory does not exist, create it first
var exists = function (src, dst, callback) {
    fs.exists(dst, function (exists) {
        / / has been in existence
        if (exists) {
            callback(src, dst);
        }
        / / does not exist
        else {
            fs.mkdir(dst, function () { callback(src, dst); }); }}); };// Delete all folders
function deleteall(path) {
    let files = [];
    if (fs.existsSync(path)) {
        files = fs.readdirSync(path);
        files.forEach(function (file, index) {
            // console.log(file);
            let curPath = path + "/" + file;
            console.log(curPath);
            if (fs.statSync(curPath).isDirectory()) { // recurse
                deleteall(curPath);
            } else { // delete filefs.unlinkSync(curPath); }}); fs.rmdirSync(path); }};// The source folder to copy
const dirFrom = './marketing.shenkonghao.UI/dist'
// Copy the target folder
const dirTo = './marketing-shenkonghao-node/app/public'
// const dirTo = './haha'

// Create a listener to listen for file changes
var watcher = chokidar.watch(dirFrom, {
    ignored: / [\ / \ \] \. /, persistent: true
});
var log = console.log.bind(console);

watcher
    .on('add'.function (path) {
        // Delete the files in the target file
        deleteall(dirTo)
        // Copy directory files to target files
        exists(dirFrom, dirTo, copy);
        log('File', path, 'has been added');
    })
    .on('addDir'.function (path) { log('Directory', path, 'has been added'); })
    .on('change'.function (path) {
        log('File', path, 'has been changed');
        // Delete the files in the target file
        deleteall(dirTo)
        // Copy directory files to target files
        exists(dirFrom, dirTo, copy);
    })
    .on('unlink'.function (path) { log('File', path, 'has been removed'); })
    .on('unlinkDir'.function (path) { log('Directory', path, 'has been removed'); })
    .on('error'.function (error) { log('Error happened', error); })
    .on('ready'.function () { log('Initial scan complete. Ready for changes.'); })
    .on('raw'.function (event, path, details) { log('Raw event info:', event, path, details); })
Copy the code

Package. The json

{
  "name": "shengkong"."version": "1.0.0"."description": "Process daemon, listens for file changes and copies files to target folder."."main": "copy.js"."scripts": {
    "test": "node copy.js"."pmcopy":"pm2 start copy.js"."vuebuild":"cd ./marketing.shenkonghao.UI && npm run build"
  },
  "author": "shenqiang"."license": "ISC"."dependencies": {
    "chokidar": "^ 3.5.1 track of"."fs": "0.0.1 ws-security"}}Copy the code