Install Rust
Code Block |
---|
curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf | sh |
...
Using the Package Manager
Create a project using Cargo
Code Block |
---|
|
cargo new hello_cargo |
Code Block |
---|
Creating binary (application) `hello_cargo` package
note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html |
This command creates a folder with the name of the new project containing a src directory and the dependency file called Cargo.toml.
Code Block |
---|
hello_cargo
├── .git
│ ├── HEAD
│ ├── config
│ ├── description
│ ├── hooks
│ │ └── README.sample
│ ├── info
│ │ └── exclude
│ ├── objects
│ │ ├── info
│ │ └── pack
│ └── refs
│ ├── heads
│ └── tags
├── .gitignore
├── Cargo.toml
└── src
└── main.rs |
It has also initialized a new Git repository along with a .gitignore file. Git files won’t be generated if you run cargo new
within an existing Git repository; you can override this behavior by using cargo new --vcs=git
.
Cargo.toml
Code Block |
---|
[package]
name = "hello_cargo"
version = "0.1.0"
edition = "2021"
[dependencies] |
Building
Build and Run
Build for Release
Code Block |
---|
|
cargo build --release |
This command will create an executable in target/release instead of target/debug. The optimizations make your Rust code run faster, but turning them on lengthens the time it takes for your program to compile. This is why there are two different profiles: one for development, when you want to rebuild quickly and often, and another for building the final program you’ll give to a user that won’t be rebuilt repeatedly and that will run as fast as possible. If you’re benchmarking your code’s running time, be sure to run cargo build --release
and benchmark with the executable in target/release.
References