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rustlings

by rust-lang

rust-lang /rustlings

:crab: Small exercises to get you used to reading and writing Rust code!

9.9K Stars 1.2K Forks Last release: 3 months ago (3.0.0) MIT License 603 Commits 17 Releases

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crab pet<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->All Contributors<!-- ALL-CONTRIBUTORS-BADGE:END -->

rustlings πŸ¦€β€οΈ Build status

Greetings and welcome to

rustlings

. This project contains small exercises to get you used to reading and writing Rust code. This includes reading and responding to compiler messages!

...looking for the old, web-based version of Rustlings? Try here

Alternatively, for a first-time Rust learner, there's several other resources:

  • The Book - The most comprehensive resource for learning Rust, but a bit theoretical sometimes. You will be using this along with Rustlings!
  • Rust By Example - Learn Rust by solving little exercises! It's almost like
    rustlings
    , but online

Getting Started

_Note: If you're on MacOS, make sure you've installed Xcode and its developer tools by typing

xcode-select --install

._

You will need to have Rust installed. You can get it by visiting https://rustup.rs. This'll also install Cargo, Rust's package/project manager.

MacOS/Linux

Just run:

curl -L https://git.io/rustlings | bash # Or if you want it to be installed to a different path: curl -L https://git.io/rustlings | bash -s mypath/

This will install Rustlings and give you access to the

rustlings

command. Run it to get started!

Windows

In PowerShell, set

ExecutionPolicy

to

RemoteSigned

:

Set-ExecutionPolicy RemoteSigned

Then, you can run:

Start-BitsTransfer -Source https://git.io/rustlings-win -Destination $env:TMP/install\_rustlings.ps1; Unblock-File $env:TMP/install\_rustlings.ps1; Invoke-Expression $env:TMP/install\_rustlings.ps1

To install Rustlings. Same as on MacOS/Linux, you will have access to the

rustlings

command after it.

Manually

Basically: Clone the repository, checkout to the latest tag, run

cargo install

.

git clone https://github.com/rust-lang/rustlings cd rustlings git checkout tags/3.0.0 # or whatever the latest version is (find out at https://github.com/rust-lang/rustlings/releases/latest) cargo install --force --path .

If there are installation errors, ensure that your toolchain is up to date. For the latest, run:

bash rustup update

Then, same as above, run

rustlings

to get started.

Doing exercises

The exercises are sorted by topic and can be found in the subdirectory

rustlings/exercises/<topic></topic>

. For every topic there is an additional README file with some resources to get you started on the topic. We really recommend that you have a look at them before you start.

The task is simple. Most exercises contain an error that keep it from compiling, and it's up to you to fix it! Some exercises are also run as tests, but rustlings handles them all the same. To run the exercises in the recommended order, execute:

rustlings watch

This will try to verify the completion of every exercise in a predetermined order (what we think is best for newcomers). It will also rerun automatically every time you change a file in the

exercises/

directory. If you want to only run it once, you can use:

rustlings verify

This will do the same as watch, but it'll quit after running.

In case you want to go by your own order, or want to only verify a single exercise, you can run:

rustlings run myExercise1

In case you get stuck, you can run the following command to get a hint for your exercise:

rustlings hint myExercise1

Testing yourself

After every couple of sections, there will be a quiz that'll test your knowledge on a bunch of sections at once. These quizzes are found in

exercises/quizN.rs

.

Completion

Rustlings isn't done; there are a couple of sections that are very experimental and don't have proper documentation. These include:

  • Errors (
    exercises/errors/
    )
  • Option (
    exercises/option/
    )
  • Result (
    exercises/result/
    )
  • Move Semantics (could still be improved,
    exercises/move\_semantics/
    )

Additionally, we could use exercises on a couple of topics:

  • Structs
  • Better ownership stuff
  • impl
  • ??? probably more

If you are interested in improving or adding new ones, please feel free to contribute! Read on for more information :)

Contributing

See CONTRIBUTING.md.

Contributors ✨

Thanks goes to these wonderful people (emoji key):

|
Carol (Nichols || Goulding)

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QuietMisdreavus

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Robert M Lugg

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Hynek Schlawack

πŸ’» |
Katharina Fey

πŸ’» |
lukabavdaz

πŸ’» πŸ–‹ |
Erik Vesteraas

πŸ’» |
delet0r

πŸ’» | |
Shaun Bennett

πŸ’» |
Andrew Bagshaw

πŸ’» |
Kyle Isom

πŸ’» |
Colin Pitrat

πŸ’» |
Zac Anger

πŸ’» |
Matthias Geier

πŸ’» |
Chris Pearce

πŸ’» |
Yvan Sraka

πŸ’» | |
Denys Smirnov

πŸ’» |
eddyp

πŸ’» |
Brian Kung

πŸ’» πŸ–‹ |
Russell

πŸ’» |
Dan Wilhelm

πŸ“– |
Jesse

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Fredrik JambrΓ©n

πŸ’» |
Pete McFarlane

πŸ–‹ | |
nkanderson

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Ajax M

πŸ“– |
Dylan Nugent

πŸ–‹ |
vyaslav

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George

πŸ’» |
Thomas Holloway

πŸ’» πŸ–‹ |
Jubilee

πŸ’» |
WofWca

πŸ’» | |
Roberto Vidal

πŸ’» πŸ“– πŸ€” 🚧 |
Jens

πŸ“– |
Rahat Ahmed

πŸ“– |
Abdou Seck

πŸ’» πŸ–‹ πŸ‘€ |
Katie

πŸ’» |
Socrates

πŸ“– |
gnodarse

πŸ–‹ |
Harrison Metzger

πŸ’» | |
Torben Jonas

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Paul Bissex

πŸ“– |
Steven Mann

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Mario Reder

πŸ’» πŸ–‹ |
skim

πŸ’» |
Sanjay K

πŸ’» πŸ–‹ |
Rohan Jain

πŸ’» |
Said Aspen

πŸ’» πŸ–‹ |

This project follows the all-contributors specification. Contributions of any kind welcome!

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