2cd06826c0
Suggest rustup update in readme I'm pretty new to Rust. I tried installing rustlings for the first time and got this error: ``` $> cargo install --force --path . error: `/Users/ajax/projects/rust/rustlings` is not a crate root; specify a crate to install from crates.io, or use --path or --git to specify an alternate source Caused by: failed to parse manifest at `/Users/ajax/projects/rust/rustlings/Cargo.toml` Caused by: editions are unstable Caused by: feature `edition` is required this Cargo does not support nightly features, but if you switch to nightly channel you can add `cargo-features = ["edition"]` to enable this feature ``` I'm not sure if the answer was to run `rustup update` but I noticed that I was running Rust 1.29.0, so updated to 1.36.0 and got it working. If there's a way to specify a minimum required version, pls let me know. Lastly, the whitespace changes were automatic from my editor. What's the convention here for making such updates? Thanks! |
||
|---|---|---|
| exercises | ||
| src | ||
| tests | ||
| .clog.toml | ||
| .gitignore | ||
| .travis.yml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| CHANGELOG.md | ||
| CONTRIBUTING.md | ||
| default_out.txt | ||
| info.toml | ||
| install.sh | ||
| LICENSE | ||
| README.md | ||
rustlings 🦀❤️
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.
Note: If you have Xcode 10+ installed, you also need to install the package file found at /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg.
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!
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/1.0.0 # 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:
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>. 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 ran 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 exercises/path/to/exercise.rs
In case you get stuck, there is usually a hint at the bottom of each exercise.
Testing yourself
After every couple of sections, there will be a test that'll test your knowledge on a bunch of sections at once. These tests are found in exercises/testN.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.
Credits
rustlings was originally written by Carol!