Leonard Ginters
The File System Promises API
In the following code snippets, I'll be using the fs Promises API.
It's available to you if you're rocking at least Node.js v10.
const { promises: fs } = require("fs");
Separating the directory entries
To be able to separate the entries, we have to explicitly ask for all information about the file type.
const entries = await fs.readdir(path, { withFileTypes: true });
If we now want to separate the entries, we can just do this by calling the isDirectory method.
const folders = entries.filter(entry => entry.isDirectory());
const files = entries.filter(entry => !entry.isDirectory());
Getting the files recursive
If we now combine the previously mentioned ways to separate the files, put everything in a function and call this function recursively for every subdirectory, we are able to get all files within the current directory and all subdirectories.
async function getFiles(path = "./") {
const entries = await fs.readdir(path, { withFileTypes: true });
// Get files within the current directory and add a path key to the file objects
const files = entries
.filter(entry => !entry.isDirectory())
.map(file => ({ ...file, path: path + file.name }));
// Get folders within the current directory
const folders = entries.filter(entry => entry.isDirectory());
for (const folder of folders)
/*
Add the found files within the subdirectory to the files array by calling the
current function itself
*/
files.push(...await getFiles(`${path}${folder.name}/`));
return files;
}
