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
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。
找不到创建具有所需权限的目录的示例。
使用您想要的权限以异步递归方式创建目录。
下面是一个简单的nodejs解决方案
节点v18.12.1 Ubuntu 18
//-----------------------------
const fs = require('fs');
const fsPromises = fs.promises;
const checkDirAccess = async (userDir) => {
try {
await fsPromises.access(userDir, fs.constants.R_OK | fs.constants.W_OK);
console.log(` ${userDir} Dir existss`);
return userDir;
} catch (err) {
if(err.errno = -2)
return await crDir(userDir);
else
throw err;
}
}
const crDir = async (userDir) => {
try {
let newDir = await fsPromises.mkdir(userDir, { recursive: true, mode: 0o700});
// When userDir is created; newDir = undefined;
console.log(` Created new Dir ${newDir}`);
return newDir;
} catch (err) {
throw err;
}
}
const directoryPath = ['uploads/xvc/xvc/xvc/specs', 'uploads/testDir11', 'uploads/xsXa/', 'uploads//xsb//', 'uploads//xsV/'];
const findDir = async() => {
try {
for (const iterator of directoryPath) {
let dirOK = await checkDirAccess(iterator);
if(dirOK)
console.log(`found ${dirOK}`)
}
} catch (error) {
console.error('Error : ', error);
}
}
fs-extra添加了本地fs模块中不包含的文件系统方法。它是fs替换量的下降。
安装fs-extra
$ NPM install——保存fs-extra
const fs = require("fs-extra");
// Make sure the output directory is there.
fs.ensureDirSync(newDest);
有同步和异步选项。
https://github.com/jprichardson/node-fs-extra/blob/master/docs/ensureDir.md
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(); }); }
我知道这是一个老问题，但是nodejs v10.12.0现在通过将递归选项设置为true在本地支持这个选项。fs.mkdir
// Creates /tmp/a/apple, regardless of whether `/tmp` and /tmp/a exist.
fs.mkdir('/tmp/a/apple', { recursive: true }, (err) => {
if (err) throw err;
});
