npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@file-services/overlay

v9.4.1

Published

Overlay files and directories from one file system on top of another.

Downloads

2,782

Readme

@file-services/overlay

Overlay files and directories from one file system on top of another.

Motivation

Overlay file system allows taking a native node file system ("lower fs") and overlay files and directories from an in-memory file system ("higher fs"). It can be used as a virtual layer providing a solution for storing and manipulating temporary data.

Behavior

Read operations (readFile, readdir, stat, etc.) are checking higher fs first, and fallback to lower fs.

Currently, all write operations go directly to the original lower fs.

Getting started

Install library in project:

npm i @file-services/overlay

Then, use the programmatic API:

import { createOverlayFs } from "@file-services/overlay";
import { createMemoryFs } from "@file-services/memory";
import { nodeFs } from "@file-services/node";

const memFs = createMemoryFs({
  src: {
    "a.txt": `A`,
    "b.txt": `B`,
  },
});

const overlayFs = createOverlayFs(nodeFs /* lower fs */, memFs /* higher fs */);

// overlayFs.readFileSync('src/a.txt', 'utf8') === 'A'

createOverlayFs also accepts a directory path as third parameter which specifies which directory in lower fs should be overlaid upon (defaults to lowerFs.cwd()). This is important when overlaying a memory fs over native node fs and running on Windows. Memory fs uses posix-style paths, so the base directory is where memory's root / begins to overlay.

License

MIT