我试图创建一个完整的路径，如果它不存在。
代码如下所示:
var fs = require('fs');
if (!fs.existsSync(newDest)) fs.mkdirSync(newDest);
只要只有一个子目录(像'dir1'这样的newDest)，这段代码就能很好地工作，但是当有一个目录路径('dir1/dir2')时，它就会失败 错误:ENOENT，没有这样的文件或目录
我希望能够用尽可能少的代码行创建完整的路径。
我读到fs上有一个递归选项，并尝试了这样做
var fs = require('fs');
if (!fs.existsSync(newDest)) fs.mkdirSync(newDest,'0777', true);
我觉得递归地创建一个不存在的目录应该这么简单。我是否遗漏了一些东西，或者我是否需要解析路径并检查每个目录，如果它不存在，则创建它?
我对Node很陌生。也许我使用的是旧版本的FS?
当前回答
const fs = require('fs');
try {
fs.mkdirSync(path, { recursive: true });
} catch (error) {
// this make script keep running, even when folder already exist
console.log(error);
}
其他回答
我对fs的递归选项有问题。mkdir，所以我做了一个函数，做以下工作:
Creates a list of all directories, starting with the final target dir and working up to the root parent. Creates a new list of needed directories for the mkdir function to work Makes each directory needed, including the final function createDirectoryIfNotExistsRecursive(dirname) { return new Promise((resolve, reject) => { const fs = require('fs'); var slash = '/'; // backward slashes for windows if(require('os').platform() === 'win32') { slash = '\\'; } // initialize directories with final directory var directories_backwards = [dirname]; var minimize_dir = dirname; while (minimize_dir = minimize_dir.substring(0, minimize_dir.lastIndexOf(slash))) { directories_backwards.push(minimize_dir); } var directories_needed = []; //stop on first directory found for(const d in directories_backwards) { if(!(fs.existsSync(directories_backwards[d]))) { directories_needed.push(directories_backwards[d]); } else { break; } } //no directories missing if(!directories_needed.length) { return resolve(); } // make all directories in ascending order var directories_forwards = directories_needed.reverse(); for(const d in directories_forwards) { fs.mkdirSync(directories_forwards[d]); } return resolve(); }); }
基于mouneer的零依赖回答，这里有一个初学者更友好的Typescript变体，作为一个模块:
import * as fs from 'fs';
import * as path from 'path';
/**
* Recursively creates directories until `targetDir` is valid.
* @param targetDir target directory path to be created recursively.
* @param isRelative is the provided `targetDir` a relative path?
*/
export function mkdirRecursiveSync(targetDir: string, isRelative = false) {
const sep = path.sep;
const initDir = path.isAbsolute(targetDir) ? sep : '';
const baseDir = isRelative ? __dirname : '.';
targetDir.split(sep).reduce((prevDirPath, dirToCreate) => {
const curDirPathToCreate = path.resolve(baseDir, prevDirPath, dirToCreate);
try {
fs.mkdirSync(curDirPathToCreate);
} catch (err) {
if (err.code !== 'EEXIST') {
throw err;
}
// caught EEXIST error if curDirPathToCreate already existed (not a problem for us).
}
return curDirPathToCreate; // becomes prevDirPath on next call to reduce
}, initDir);
}
这个方法怎么样:
if (!fs.existsSync(pathToFile)) {
var dirName = "";
var filePathSplit = pathToFile.split('/');
for (var index = 0; index < filePathSplit.length; index++) {
dirName += filePathSplit[index]+'/';
if (!fs.existsSync(dirName))
fs.mkdirSync(dirName);
}
}
这适用于相对路径。
像这样干净:)
function makedir(fullpath) {
let destination_split = fullpath.replace('/', '\\').split('\\')
let path_builder = destination_split[0]
$.each(destination_split, function (i, path_segment) {
if (i < 1) return true
path_builder += '\\' + path_segment
if (!fs.existsSync(path_builder)) {
fs.mkdirSync(path_builder)
}
})
}
const fs = require('fs');
try {
fs.mkdirSync(path, { recursive: true });
} catch (error) {
// this make script keep running, even when folder already exist
console.log(error);
}
