Crate satway_build 

satway_build

This crate collects building information from all kinds of environments in to an object CompileInfo

generally, this is used in the build.rs file when build project,we write the information to a file like ‘src/context/compile_info.txt’ then we can use it in our program with CompileInfo::load_from_str(!include(“/src/context/compile_info.txt”));

CompileInfo serialize and Deserialize by serde_json library.

#[example]

build.rs write build information to a file

use satway_build::CompileInfo;
use std::fmt::Debug;
use std::path::Path;
use std::{env, fs};

pub fn main() {

    println!("cargo:rerun-if-changed=build.rs");
    let compile_info: CompileInfo = CompileInfo::load_from_env();

    let out_file_path = Path::new(&env::var("OUT_DIR").unwrap()).join("compile_info.txt");
    println!("cargo:rustc-env=COMPILE_INFO_FILE={}", out_file_path.as_path().to_str().unwrap());
    fs::write(out_file_path, compile_info.save_to_str(true)).expect("Unable to write file");
}

use it in an api server

use satway_build::CompileInfo;

pub fn version_info() {
    let json = include_str!(env!("COMPILE_INFO_FILE"));
    let compile_info = CompileInfo::load_from_str(json);
    println!("{:#?}", compile_info);
}

Structs

CompileInfo