Overview

Rustup (Setup / Info / etc.)

Uninstall rust on your system.

$ rustup self uninstall

# Windows
C:\Users\<name>\.cargo
C:\Users\<name>\.rustup

# Linux
~/.cargo
~/.rustup

Update

$ rustup udpate

Current installation

$ rustup show

Toolchain

Install the nightly toolchain as follow.

$ rustup toolchain install nightly

Now Rust nightly is installed, but not activated. To test it out you can run a command from the nightly toolchain like

$ rustup run nightly rustc --version

But more likely you want to use it for a while. To switch to nightly globally, change the default with rustup default nightly.

$ rustup default nightly

Cargo

Cargo is the Rust package manager. Cargo downloads your Rust package’s dependencies, compiles your packages, makes distributable packages, and uploads them to crates.io, the Rust community’s package registry. You can contribute to this book on GitHub.

New project

$ cargo new <project-name> [--bin|--lib]

--bin

binary programm / project

--lib

library project

This also initializes a new git repository by default. If you don’t want it to do that, pass --vcs none.

Others

$ cargo check

$ cargo test

$ cargo clean

Dependencies

install creates from creates.io

$ cargo install <name>

Building

To build / compile using rustc you can do it as follow.

$ rustc ../*.rs

With cargo, which uses Cargo.toml the command is as follow.

$ cargo build [--release]

target tripple

$ rustc --print target-list | pr -tw100 --columns 3

$ cargo build --target x86_64-pc-windows-msvc
# msvc for windos. useses Visual C++ compiler

Rust and WSL with Cargo

cross-compile from Ubuntu to Windows x86_64

add a new target to the toolchain

$ rustup target add x86_64-pc-windows-gnu

install mingw-w64

$ sudo apt install mingw-w64

To tell Rust which linker to use, add the following to ~/.cargo/config:

[target.x86_64-pc-windows-gnu] linker = “/usr/bin/x86_64-w64-mingw32-gcc”

or https://doc.rust-lang.org/cargo/reference/config.html#hierarchical-structure

cross-compile

$ cargo build --target x86_64-pc-windows-gnu --release && strip target/x86_64-pc-windows-gnu/release/chrome-bookmark-sync.exe

The rustup toolchain proxies can be instructed directly to use a specific toolchain, a convenience for developers who often test different toolchains. If the first argument to cargo, rustc or other tools in the toolchain begins with +, it will be interpreted as a rustup toolchain name, and that toolchain will be preferred, as in

cargo +beta test

File size optimizatin

https://lifthrasiir.github.io/rustlog/why-is-a-rust-executable-large.html

https://doc.rust-lang.org/cargo/reference/manifest.html