Rust Daily Learning - Day 18
Today, we’ll explore Cargo, Rust’s package manager and build system. Cargo streamlines the process of managing dependencies, building, testing, and publishing Rust projects.
Creating a New Project
To create a new Rust project using Cargo, run the following command:
$ cargo new my_project
This command will generate a new directory named my_project with the following structure:
my_project
├── Cargo.toml
└── src
└── main.rs
Cargo.toml is the project’s configuration file, and src/main.rs is the main source file.
Building and Running a Project
To build your Rust project, use the cargo build command. This command compiles the project and creates an executable binary in the target/debug directory:
$ cargo build
To run the project, use the cargo run command. This command builds the project if necessary and then runs the generated executable:
$ cargo run
Dependencies
Cargo makes it easy to manage your project’s dependencies. To add a dependency, open the Cargo.toml file and add the package under the [dependencies] section:
[dependencies]
serde = "1.0"
When you build or run your project, Cargo automatically downloads the specified dependencies, along with their transitive dependencies, and compiles them.
To use the dependency in your Rust code, add an extern crate declaration and use the package’s features:
extern crate serde;
// Use serde features
Testing and Documentation
As we’ve seen in previous sessions, Cargo also handles testing and documentation. Run tests with the cargo test command and generate documentation using the cargo doc command.
Keep practicing Cargo commands and project management to streamline your Rust development experience!