Learn Rust by 500 lines code

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• RTD (Rust To Do) is a todo app cli tool write by 500 lines Rust code. (exclude space lines/comments/long line break display/test code)
• RTD is also a tutorial, designed to learn Rust by doing.

Table of contents

• What can you learn from rtd?
• Prepare
• Install
• Usage
• About author

What can you learn from RTD?

Assuming you know nothing about Rust, through the Learn Rust by 500 lines code tutorial, step by step to build the project from scratch, you will learn:

• Rust common syntax
• Rust module system (package/binary crate/library crate/mod/pub/use)
• Rust ownership model (Bernstein conditions)
• Rust lifetime
• Rust error/null handling model (Result<T, E>/Option<T>)
• Rust generic
• Rust pattern matching (if let , match ...)
• Rust unit test
• Rust file I/O (File Seek/Buffed File I/O)
• Rust manipulating environment variables
• Rust command line parameter parsing
• Rust release package to crate.io
• The general process of developing a program (requirements/design/implementation/testing/release/maintenance)
• Layered abstraction (data storage layer/model mapping layer/data model layer/business logic layer/application interface layer/user interface layer)
• Handwritten serialization/deserialization from scratch
• Implement the recycle bin function (virtualization concept)

Architecture

Storage

Use a local file $HOME/.rtd.csv store all data

After completing this tutorial or installing RTD directly, you will get:

• Extremely lightweight and concise todo command line application
• Cross-platform, Rust's excellent build system naturally supports cross-platform
• Safe, supports recycle bin, completely local, no network, no database
• All data storage uses only one local csv file, which can be switched between different machines by copying the csv file

Interesting fact: I use RTD to complete the RTD tutorial :)

If you like my tutorial, don't forget to give me a star~

Prepare

• Rust is naturally cross-platform. This project is built and tested in the linux environment, and Windows/MacOS are also supported. You can choose to download the corresponding Cargo according to your own operating system.
• Cargo Rust's package management and build tool, can be installed directly through the Rust official website rustup one line command. Then, all things will be done by Cargo, so cute, right?

Install

Via crate.io :

bash cargo install rtd-tutorial

Or via git repo :

bash git clone https://github.com/cuppar/rtd.git cargo install --path rtd

Usage

View help document

bash rtd -h rtd --help

Add a todo

bash rtd -a <item-name> rtd --add <item-name>

List all uncompleted todos

bash rtd rtd -l rtd -l uncompleted rtd --list rtd --list uncompleted

Complete a todo

bash rtd -c <item-id> rtd --complete <item-id>

List all completed todos

bash rtd -l completed rtd --list completed

Uncomplete a todo

bash rtd -u <item-id> rtd --uncomplete <item-id>

Throw a todo into the recycle bin

bash rtd -d <item-id> rtd --delete <item-id>

List all recycle bin todos

bash rtd -l deleted rtd --list deleted

Restore a todo from the recycle bin

bash rtd -r <item-id> rtd --restore <item-id>

Physically destroy a todo

bash rtd --destroy <item-id>

Empty recycle bin

bash rtd --destroy-deleted

List all todos

bash rtd -l all rtd --list all

Clear all todos

bash rtd --clear

About author

Cuppar He(He Zhiying), software development engineer, likes programming, technical writing, learning new things, especially computer science, worked for SAP(World Top 100) and Alibaba Group(World Top 100 & Chinese internet giant). I am currently in Gap Year, if you are looking for a software development engineer and can provide a high-quality offer(Both remote and on-site), please contact me cuppar.hzy@gmail.com.