A build script tool compile project much information,version info,dependence info.Like shadow,if compiled,never change.forever follow your project.

When you published a rust binary. Sometimes you need to know the dependencies of the current project.

• Git version information
• which version of rust compiled.
• Is it a debug or release version of rust.
• Cargo dependent cargo.lock detail crates info.
• ...

We can use this information to quickly trace the history version of the project. n This project can do this things that can help you quick get above information. Let's configuration in your project.

You can also see shadow_example how to configuration.

In your cargo.toml packgae with package add with below config

[package]
build = "build.rs"

[dependencies]
shadow-rs = "0.5"

[build-dependencies]
shadow-rs = "0.5"

In your project add file build.rs,then add with below config

fn main() -> shadow_rs::SdResult<()> {
    shadow_rs::new()
}

In your project find bin rust file.It's usually main.rs, you can find [bin] file with Cargo.toml,then add with below config The shadow!(build) with build config,add Rust build mod in your project. You can also replace it(build) with other name.

#[macro_use]
extern crate shadow_rs;

shadow!(build);

Then you can use const that's shadow build it(main.rs). The build mod just we use shadow!(build) generated.

fn main() {
    println!("{}",build::version());//print version() method 
    println!("{}",build::BRANCH); //master
    println!("{}",build::SHORT_COMMIT);//8405e28e
    println!("{}",build::COMMIT_HASH);//8405e28e64080a09525a6cf1b07c22fcaf71a5c5
    println!("{}",build::COMMIT_DATE);//2020-08-16T06:22:24+00:00
    println!("{}",build::COMMIT_AUTHOR);//baoyachi
    println!("{}",build::COMMIT_EMAIL);//[email protected]

    println!("{}",build::BUILD_OS);//macos-x86_64
    println!("{}",build::RUST_VERSION);//rustc 1.45.0 (5c1f21c3b 2020-07-13)
    println!("{}",build::RUST_CHANNEL);//stable-x86_64-apple-darwin (default)
    println!("{}",build::CARGO_VERSION);//cargo 1.45.0 (744bd1fbb 2020-06-15)
    println!("{}",build::PKG_VERSION);//0.3.13
    println!("{}",build::CARGO_TREE); //like command:cargo tree

    println!("{}",build::PROJECT_NAME);//shadow-rs
    println!("{}",build::BUILD_TIME);//2020-08-16 14:50:25
    println!("{}",build::BUILD_RUST_CHANNEL);//debug
}

And you can also use const with clap.

If you have any question,you can create issue.

If you are using shadow-rs,please tell me.Or you can make a notes here,if you like:collection use.

nushell