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
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
如果你想递归复制源目录的所有内容,那么你需要将递归选项传递为true,并尝试通过fs-extra记录catch以进行同步
因为fs-extra完全替代了fs,所以你不需要导入基本模块
const fs = require('fs-extra');
let sourceDir = '/tmp/src_dir';
let destDir = '/tmp/dest_dir';
try {
fs.copySync(sourceDir, destDir, { recursive: true })
console.log('success!')
} catch (err) {
console.error(err)
}
其他回答
我写了这个函数用于在目录之间递归地复制(copyFileSync)或移动(renameSync)文件:
// Copy files
copyDirectoryRecursiveSync(sourceDir, targetDir);
// Move files
copyDirectoryRecursiveSync(sourceDir, targetDir, true);
function copyDirectoryRecursiveSync(source, target, move) {
if (!fs.lstatSync(source).isDirectory())
return;
var operation = move ? fs.renameSync : fs.copyFileSync;
fs.readdirSync(source).forEach(function (itemName) {
var sourcePath = path.join(source, itemName);
var targetPath = path.join(target, itemName);
if (fs.lstatSync(sourcePath).isDirectory()) {
fs.mkdirSync(targetPath);
copyDirectoryRecursiveSync(sourcePath, targetPath);
}
else {
operation(sourcePath, targetPath);
}
});
}
对于Linux/Unix操作系统,可以使用shell语法
const shell = require('child_process').execSync;
const src = `/path/src`;
const dist = `/path/dist`;
shell(`mkdir -p ${dist}`);
shell(`cp -r ${src}/* ${dist}`);
就是这样!
有一些模块支持复制文件夹及其内容。最流行的是wrench.js:
// Deep-copy an existing directory
wrench.copyDirSyncRecursive('directory_to_copy', 'location_where_copy_should_end_up');
一个替代方案是node-fs-extra:
fs.copy('/tmp/mydir', '/tmp/mynewdir', function (err) {
if (err) {
console.error(err);
} else {
console.log("success!");
}
}); // Copies directory, even if it has subdirectories or files
我是这样做的:
let fs = require('fs');
let path = require('path');
然后:
let filePath = // Your file path
let fileList = []
var walkSync = function(filePath, filelist)
{
let files = fs.readdirSync(filePath);
filelist = filelist || [];
files.forEach(function(file)
{
if (fs.statSync(path.join(filePath, file)).isDirectory())
{
filelist = walkSync(path.join(filePath, file), filelist);
}
else
{
filelist.push(path.join(filePath, file));
}
});
// Ignore hidden files
filelist = filelist.filter(item => !(/(^|\/)\.[^\/\.]/g).test(item));
return filelist;
};
然后调用该方法:
This.walkSync(filePath, fileList)
我尝试了fs-extra和copy-dir来递归地复制文件夹。但我希望它能
正常工作(copy-dir抛出一个不合理的错误) 在过滤器中提供两个参数:filepath和filetype (fs-extra不告诉文件类型) 有从目录到子目录的检查和从目录到文件的检查吗
所以我自己写了:
// Node.js module for Node.js 8.6+
var path = require("path");
var fs = require("fs");
function copyDirSync(src, dest, options) {
var srcPath = path.resolve(src);
var destPath = path.resolve(dest);
if(path.relative(srcPath, destPath).charAt(0) != ".")
throw new Error("dest path must be out of src path");
var settings = Object.assign(Object.create(copyDirSync.options), options);
copyDirSync0(srcPath, destPath, settings);
function copyDirSync0(srcPath, destPath, settings) {
var files = fs.readdirSync(srcPath);
if (!fs.existsSync(destPath)) {
fs.mkdirSync(destPath);
}else if(!fs.lstatSync(destPath).isDirectory()) {
if(settings.overwrite)
throw new Error(`Cannot overwrite non-directory '${destPath}' with directory '${srcPath}'.`);
return;
}
files.forEach(function(filename) {
var childSrcPath = path.join(srcPath, filename);
var childDestPath = path.join(destPath, filename);
var type = fs.lstatSync(childSrcPath).isDirectory() ? "directory" : "file";
if(!settings.filter(childSrcPath, type))
return;
if (type == "directory") {
copyDirSync0(childSrcPath, childDestPath, settings);
} else {
fs.copyFileSync(childSrcPath, childDestPath, settings.overwrite ? 0 : fs.constants.COPYFILE_EXCL);
if(!settings.preserveFileDate)
fs.futimesSync(childDestPath, Date.now(), Date.now());
}
});
}
}
copyDirSync.options = {
overwrite: true,
preserveFileDate: true,
filter: function(filepath, type) {
return true;
}
};
还有一个类似的函数mkdirs,它是mkdirp的替代:
function mkdirsSync(dest) {
var destPath = path.resolve(dest);
mkdirsSync0(destPath);
function mkdirsSync0(destPath) {
var parentPath = path.dirname(destPath);
if(parentPath == destPath)
throw new Error(`cannot mkdir ${destPath}, invalid root`);
if (!fs.existsSync(destPath)) {
mkdirsSync0(parentPath);
fs.mkdirSync(destPath);
}else if(!fs.lstatSync(destPath).isDirectory()) {
throw new Error(`cannot mkdir ${destPath}, a file already exists there`);
}
}
}