OPFS Project

A Rust library for working with the Origin Private File System (OPFS) in WebAssembly applications.

Features

• File and directory operations in OPFS
• Support for fuse.link files to create symbolic links between directories
• Package management functionality for handling npm-style dependencies
• Asynchronous API for all file operations

Use Cases

• Web applications that need persistent local storage
• Package managers for web-based development environments
• Applications that need to manage complex file structures in the browser
• Tools that require fast access to local files without user interaction

Development Setup

1. Install Rust and Cargo
2. Install wasm-pack: cargo install wasm-pack
3. Build the project: wasm-pack build
4. Run tests: wasm-pack test --chrome --headless

API

File Operations

• opfs::read_dir(path) - Read directory contents
• opfs::read(path) - Read file contents
• opfs::write(path, content) - Write content to file
• opfs::create_dir_all(path) - Create directory and all parent directories
• opfs::remove(path) - Remove a file
• opfs::exists(path) - Check if file or directory exists

Package Management

• package_manager::install_deps(package_lock, max_concurrent_downloads) - Install dependencies from package-lock.json with specified concurrency limit

Fuse Link Operations

• fuse::fuse_link(src, dst) - Create fuse link between source and destination directories
• fuse::read(path) - Read file content with fuse.link support
• fuse::read_dir(path) - Read directory contents with fuse.link support

Testing

Tests are written using wasm-bindgen-test and can be run with:

wasm-pack test --chrome --headless

Note: Tests require a modern browser with OPFS support (Firefox 116+, Chrome 114+).

License

MIT