hostab 0.0.1

Your dev tool to manage /etc/hosts like a pro — written in Rust
Documentation 
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use std::process::Command;

fn main() {
    // Git short commit hash
    let git_hash = Command::new("git")
        .args(["rev-parse", "--short", "HEAD"])
        .output()
        .ok()
        .and_then(|o| String::from_utf8(o.stdout).ok())
        .map(|s| s.trim().to_string())
        .unwrap_or_else(|| "unknown".to_string());

    // Build date (UTC)
    let build_date = chrono::Utc::now().format("%Y-%m-%d").to_string();

    println!("cargo:rustc-env=GIT_HASH={}", git_hash);
    println!("cargo:rustc-env=BUILD_DATE={}", build_date);
    println!(
        "cargo:rustc-env=TARGET_TRIPLE={}",
        std::env::var("TARGET").unwrap_or_else(|_| "unknown".to_string())
    );
    println!("cargo:rerun-if-changed=.git/HEAD");
}