Book Image

Rust Programming Cookbook

By : Claus Matzinger
Book Image

Rust Programming Cookbook

By: Claus Matzinger

Overview of this book

Rust 2018, Rust's first major milestone since version 1.0, brings more advancement in the Rust language. The Rust Programming Cookbook is a practical guide to help you overcome challenges when writing Rust code. This Rust book covers recipes for configuring Rust for different environments and architectural designs, and provides solutions to practical problems. It will also take you through Rust's core concepts, enabling you to create efficient, high-performance applications that use features such as zero-cost abstractions and improved memory management. As you progress, you'll delve into more advanced topics, including channels and actors, for building scalable, production-grade applications, and even get to grips with error handling, macros, and modularization to write maintainable code. You will then learn how to overcome common roadblocks when using Rust for systems programming, IoT, web development, and network programming. Finally, you'll discover what Rust 2018 has to offer for embedded programmers. By the end of the book, you'll have learned how to build fast and safe applications and services using Rust.
Table of Contents (12 chapters)

Recursively searching the filesystem

ripgrep—as we mentioned in the previous recipe (Extracting text using regular expressions)—is a popular grep engine that walks through files to find anything that matches the provided regular expression rules. For that, it's not only necessary to compile and match a regular expression to massive amounts of text, but also to find these texts. To get to and open these files, we need to walk the directory trees of the filesystem. Let's find out how to do that in Rust.

How to do it...

We can understand recursive search by following a few steps:

  1. Open a Terminal to create a new project using cargo new filesystem. Use VS Code to open the project directory.
  2. Edit Cargo.toml...