是否有一种更简单的方法来复制文件夹及其所有内容，而无需手动执行一系列的fs。readir, fs。readfile, fs。writefile递归?
我只是想知道我是否错过了一个函数，理想情况下是这样工作的:
fs.copy("/path/to/source/folder", "/path/to/destination/folder");
关于这个历史问题。注意fs。Cp和fs。cpSync可以递归复制文件夹，在Node v16+中可用
当前回答
fs-extra模块工作起来很有魅力。
安装fs-extra:
$ npm install fs-extra
下面是将源目录复制到目标目录的程序。
// Include the fs-extra package
var fs = require("fs-extra");
var source = 'folderA'
var destination = 'folderB'
// Copy the source folder to the destination
fs.copy(source, destination, function (err) {
if (err){
console.log('An error occurred while copying the folder.')
return console.error(err)
}
console.log('Copy completed!')
});
参考文献
fs-extra: https://www.npmjs.com/package/fs-extra
示例:Node.js教程- Node.js复制文件夹
其他回答
我创建了一个小的工作示例，只需几个步骤就可以将源文件夹复制到另一个目标文件夹(基于shift66使用ncp的答案):
步骤1 -安装ncp模块:
npm install ncp --save
步骤2 -创建copy.js(修改srcPath和destPath变量为你需要的任何变量):
var path = require('path');
var ncp = require('ncp').ncp;
ncp.limit = 16;
var srcPath = path.dirname(require.main.filename); // Current folder
var destPath = '/path/to/destination/folder'; // Any destination folder
console.log('Copying files...');
ncp(srcPath, destPath, function (err) {
if (err) {
return console.error(err);
}
console.log('Copying files complete.');
});
第三步——跑步
node copy.js
这在Node.js 10中非常简单:
const Path = require('path');
const FSP = require('fs').promises;
async function copyDir(src,dest) {
const entries = await FSP.readdir(src, {withFileTypes: true});
await FSP.mkdir(dest);
for(let entry of entries) {
const srcPath = Path.join(src, entry.name);
const destPath = Path.join(dest, entry.name);
if(entry.isDirectory()) {
await copyDir(srcPath, destPath);
} else {
await FSP.copyFile(srcPath, destPath);
}
}
}
这里假设dest不存在。
这可能是一个可能的解决方案使用异步生成器函数和迭代等待循环。这个解决方案包括过滤掉一些目录的可能性，将它们作为可选的第三个数组参数传递。
import path from 'path';
import { readdir, copy } from 'fs-extra';
async function* getFilesRecursive(srcDir: string, excludedDir?: PathLike[]): AsyncGenerator<string> {
const directoryEntries: Dirent[] = await readdir(srcDir, { withFileTypes: true });
if (!directoryEntries.length) yield srcDir; // If the directory is empty, return the directory path.
for (const entry of directoryEntries) {
const fileName = entry.name;
const sourcePath = resolvePath(`${srcDir}/${fileName}`);
if (entry.isDirectory()) {
if (!excludedDir?.includes(sourcePath)) {
yield* getFilesRecursive(sourcePath, excludedDir);
}
} else {
yield sourcePath;
}
}
}
然后:
for await (const filePath of getFilesRecursive(path, ['dir1', 'dir2'])) {
await copy(filePath, filePath.replace(path, path2));
}
fs-extra模块工作起来很有魅力。
安装fs-extra:
$ npm install fs-extra
下面是将源目录复制到目标目录的程序。
// Include the fs-extra package
var fs = require("fs-extra");
var source = 'folderA'
var destination = 'folderB'
// Copy the source folder to the destination
fs.copy(source, destination, function (err) {
if (err){
console.log('An error occurred while copying the folder.')
return console.error(err)
}
console.log('Copy completed!')
});
参考文献
fs-extra: https://www.npmjs.com/package/fs-extra
示例:Node.js教程- Node.js复制文件夹
打印稿版本
async function copyDir(source: string, destination: string): Promise<any> {
const directoryEntries = await readdir(source, { withFileTypes: true });
await mkdir(destination, { recursive: true });
return Promise.all(
directoryEntries.map(async (entry) => {
const sourcePath = path.join(source, entry.name);
const destinationPath = path.join(destination, entry.name);
return entry.isDirectory()
? copyDir(sourcePath, destinationPath)
: copyFile(sourcePath, destinationPath);
})
);
}
