Chapter 1 Getting Started

Compiling a single file: rustc xxx.rs， will produce an executable file.

Managing Rust project with Cargo

Creating the project

1. Create project cargo new proj_name
2. Enter into the project cd proj_name

This will create a folder with Cargo.toml as the configurating file, .gitignore as the git ignoring file and src as the source code folder. There is a main.rs source code in the src folder, indicating that this project is for executable target. Otherwise there should be a lib.rs , indicating the this project is for library target.

In default, cargo uses the git as its version control system. To use another VCS or no VCS, using the flag --vcs.

Compiling the project

Using cargo build to automatically build the rust project. Cargo will create a executable file at target/debug/. Or at target/release/ with --release flag.
Using cargo run to compile and run the program. Cargo will figure out whether the source code has been changed and need to be re-compiled.
Using cargo check to check whether the project is compiled, but doesn’t produce an executable. Used to check error. Faster than cargo build.