up_finder

A lightweight Rust library for finding files or directories upward in the directory tree.

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Features

• Find files or directories in the current working directory and all parent directories
• Support for finding a single file or multiple files
• High-performance HashMap implementation using rustc-hash
• Concise builder API implemented with typed-builder
• No external system dependencies, pure Rust implementation

Installation

Add the following dependency to your Cargo.toml file:

[dependencies]
up_finder = "0.0.2"

Usage Examples

Find a Single File

use up_finder::{UpFinder, FindUpKind};

// Create a UpFinder instance, default is to find files
let find_up = UpFinder::builder()
    .cwd(".")  // Start from the current directory
    .kind(FindUpKind::File)  // Optional, finding files is the default
    .build();

// Find package.json files upward
let paths = find_up.find_up("package.json");

// Print all found paths
println!("{:#?}", paths);

Find Multiple Files

use up_finder::{UpFinder, FindUpKind};

// Create a UpFinder instance
let find_up = UpFinder::builder()
    .cwd("./src")  // Start from the src directory
    .build();

// Find multiple files simultaneously
let paths = find_up.find_up_multi(&["package.json", ".gitignore", "Cargo.toml"]);

// Result is a HashMap with file names as keys and lists of found paths as values
for (file_name, file_paths) in paths {
    println!("Found {} {} files:", file_paths.len(), file_name);
    for path in file_paths {
        println!("  - {}", path.display());
    }
}

Find Directories

use up_finder::{UpFinder, FindUpKind};

// Create a UpFinder instance for finding directories
let find_up = UpFinder::builder()
    .cwd(".")
    .kind(FindUpKind::Dir)  // Set to find directories
    .build();

// Find "node_modules" directories upward
let paths = find_up.find_up("node_modules");

println!("{:#?}", paths);

API Documentation

For detailed API documentation, visit docs.rs/up_finder.

Contribution

Issues and pull requests are welcome!

License

This project is licensed under the MIT License.